I managed to get that error by passing an IQueryable
into a method that then used that IQueryable 'list' as part of a another query to the same context.
public void FirstMethod()
{
// This is returning an IQueryable
var stockItems = _dbContext.StockItems
.Where(st => st.IsSomething);
SecondMethod(stockItems);
}
public void SecondMethod(IEnumerable<Stock> stockItems)
{
var grnTrans = _dbContext.InvoiceLines
.Where(il => stockItems.Contains(il.StockItem))
.ToList();
}
To stop that happening I used the approach here and materialised that list before passing it the second method, by changing the call to SecondMethod
to be SecondMethod(stockItems.ToList()
Do not use authorization instead of authentication. I should get whole access to service all clients with header. The working code is :
public class TokenAuthenticationHandler : AuthenticationHandler<TokenAuthenticationOptions>
{
public IServiceProvider ServiceProvider { get; set; }
public TokenAuthenticationHandler (IOptionsMonitor<TokenAuthenticationOptions> options, ILoggerFactory logger, UrlEncoder encoder, ISystemClock clock, IServiceProvider serviceProvider)
: base (options, logger, encoder, clock)
{
ServiceProvider = serviceProvider;
}
protected override Task<AuthenticateResult> HandleAuthenticateAsync ()
{
var headers = Request.Headers;
var token = "X-Auth-Token".GetHeaderOrCookieValue (Request);
if (string.IsNullOrEmpty (token)) {
return Task.FromResult (AuthenticateResult.Fail ("Token is null"));
}
bool isValidToken = false; // check token here
if (!isValidToken) {
return Task.FromResult (AuthenticateResult.Fail ($"Balancer not authorize token : for token={token}"));
}
var claims = new [] { new Claim ("token", token) };
var identity = new ClaimsIdentity (claims, nameof (TokenAuthenticationHandler));
var ticket = new AuthenticationTicket (new ClaimsPrincipal (identity), this.Scheme.Name);
return Task.FromResult (AuthenticateResult.Success (ticket));
}
}
Startup.cs :
#region Authentication
services.AddAuthentication (o => {
o.DefaultScheme = SchemesNamesConst.TokenAuthenticationDefaultScheme;
})
.AddScheme<TokenAuthenticationOptions, TokenAuthenticationHandler> (SchemesNamesConst.TokenAuthenticationDefaultScheme, o => { });
#endregion
And mycontroller.cs
[Authorize(AuthenticationSchemes = SchemesNamesConst.TokenAuthenticationDefaultScheme)]
public class MainController : BaseController
{ ... }
I can't find TokenAuthenticationOptions now, but it was empty. I found the same class PhoneNumberAuthenticationOptions :
public class PhoneNumberAuthenticationOptions : AuthenticationSchemeOptions
{
public Regex PhoneMask { get; set; }// = new Regex("7\\d{10}");
}
You should define static class SchemesNamesConst
. Something like:
public static class SchemesNamesConst
{
public const string TokenAuthenticationDefaultScheme = "TokenAuthenticationScheme";
}
You could consider using an external tool like ffmpeg to merge the images into a movie (see answer here) or you could try to use OpenCv to combine the images into a movie like the example here.
I'm attaching below a code snipped I used to combine all png files from a folder called "images" into a video.
import cv2
import os
image_folder = 'images'
video_name = 'video.avi'
images = [img for img in os.listdir(image_folder) if img.endswith(".png")]
frame = cv2.imread(os.path.join(image_folder, images[0]))
height, width, layers = frame.shape
video = cv2.VideoWriter(video_name, 0, 1, (width,height))
for image in images:
video.write(cv2.imread(os.path.join(image_folder, image)))
cv2.destroyAllWindows()
video.release()
//Component. home.ts :
contacts:IContacts[];
ionViewDidLoad() {
this.rest.getContacts()
.subscribe( res=> this.contacts= res as IContacts[]) ;
// reorderArray. accepts only Arrays
Reorder(indexes){
reorderArray(this.contacts, indexes)
}
// Service . res.ts
getContacts(): Observable<IContacts[]> {
return this.http.get<IContacts[]>(this.apiUrl+"?results=5")
And it works fine
None of the answers worked until I removed the HasNoKey() method from the entity. Dont forget to remove this from your data context or the [Key] attribute will not fix anything.
To change Python 3.6.8 as the default in Ubuntu 18.04 from Python 2.7 you can try the command line tool update-alternatives
.
sudo update-alternatives --config python
If you get the error "no alternatives for python" then set up an alternative yourself with the following command:
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 2
Change the path /usr/bin/python3
to your desired python version accordingly.
The last argument specified it priority means, if no manual alternative selection is made the alternative with the highest priority number will be set. In our case we have set a priority 2 for /usr/bin/python3.6.8
and as a result the /usr/bin/python3.6.8
was set as default python version automatically by update-alternatives command.
we can anytime switch between the above listed python alternative versions using below command and entering a selection number:
update-alternatives --config python
Per Mozilla's Map documentation, you can initialize as follows:
private _gridOptions:Map<string, Array<string>> =
new Map([
["1", ["test"]],
["2", ["test2"]]
]);
I had the same issue and found out that my code was using the injection before it was initialized.
services.AddControllers(); // Will cause a problem if you use your IBloggerRepository in there since it's defined after this line.
services.AddScoped<IBloggerRepository, BloggerRepository>();
I know it has nothing to do with the question, but since I was sent to this page, I figure out it my be useful to someone else.
This is the solution i found.
Configure DBContext via AddDbContext
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<BloggingContext>(options => options.UseSqlite("Data Source=blog.db"));
}
Add new constructor to your DBContext class
public class BloggingContext : DbContext
{
public BloggingContext(DbContextOptions<BloggingContext> options)
:base(options)
{ }
public DbSet<Blog> Blogs { get; set; }
}
Inject context to your controllers
public class MyController
{
private readonly BloggingContext _context;
public MyController(BloggingContext context)
{
_context = context;
}
...
}
I don't understand why we are confusing things up here. So I'll write down a clear explanation, and what you have to notice.
All the commands will be written using dotnet
.
This solution is provided for .net Core 3.1, but should be compatible with all other generations as well
cd to_your_project
then dotnet ef migrations remove
Note: Removing a migration works only, if you didn't execute yet dotnet ef database update
or called in your c# code Database.Migrate()
, in other words, only if the migration is not applied to your database yet.
dotnet ef migrations add <your_changes>
and apply it, which is recommended by microsoft.dotnet ef database update <your_migration_name_to_jump_back_to>
Note: if the migration you want to unapply, does not contain a specific column or table, which are already in your database applied and being used, the column or table will be dropped, and your data will be lost.
After reverting the migration, you can remove your unwanted migration
Hopefully this helps someone!
I think this is the best solution for this type error. So please add below line. Also it work my code when I am using MSVS 2015.
<configuration>
<appSettings>
<add key="ValidationSettings:UnobtrusiveValidationMode" value="None" />
</appSettings>
</configuration>
I've used the implementation above and just now I came to know that it doesn't work on iPad running iOS 13. I had to add these lines before present() call in order to make it work
//avoiding to crash on iPad
if let popoverController = activityViewController.popoverPresentationController {
popoverController.sourceRect = CGRect(x: UIScreen.main.bounds.width / 2, y: UIScreen.main.bounds.height / 2, width: 0, height: 0)
popoverController.sourceView = self.view
popoverController.permittedArrowDirections = UIPopoverArrowDirection(rawValue: 0)
}
That's how it works for me
func shareData(_ dataToShare: [Any]){
let activityViewController = UIActivityViewController(activityItems: dataToShare, applicationActivities: nil)
//exclude some activity types from the list (optional)
//activityViewController.excludedActivityTypes = [
//UIActivity.ActivityType.postToFacebook
//]
//avoiding to crash on iPad
if let popoverController = activityViewController.popoverPresentationController {
popoverController.sourceRect = CGRect(x: UIScreen.main.bounds.width / 2, y: UIScreen.main.bounds.height / 2, width: 0, height: 0)
popoverController.sourceView = self.view
popoverController.permittedArrowDirections = UIPopoverArrowDirection(rawValue: 0)
}
self.present(activityViewController, animated: true, completion: nil)
}
For what I understand, VSCode is not in AppData anymore.
So Set the default git editor by executing that command in a command prompt window:
git config --global core.editor "'C:\Program Files (x86)\Microsoft VS Code\code.exe' -w"
The parameter -w
, --wait
is to wait for window to be closed before returning. Visual Studio Code is base on Atom Editor. if you also have atom installed execute the command atom --help
. You will see the last argument in the help is wait.
Next time you do a git rebase -i HEAD~3
it will popup Visual Studio Code. Once VSCode is close then Git will take back the lead.
Note: My current version of VSCode is 0.9.2
I hope that help.
[OOT]
A bit OOT, but this question is the most closest topic with my question.
Here is an example if you want to show Event where ALL participant meet certain requirement. Let's say, event where ALL the participant has fully paid. So, it WILL NOT return events which having one or more participants that haven't fully paid .
Simply use the whereDoesntHave
of the others 2 statuses.
Let's say the statuses are haven't paid at all [eq:1], paid some of it [eq:2], and fully paid [eq:3]
Event::whereDoesntHave('participants', function ($query) {
return $query->whereRaw('payment = 1 or payment = 2');
})->get();
Tested on Laravel 5.8 - 7.x
following @tony's approach, changed the getTableHeight() function to
<div id="grid1" ui-grid="$ctrl.gridOptions" class="grid" ui-grid-auto-resize style="{{$ctrl.getTableHeight()}}"></div>
getTableHeight() {
var offsetValue = 365;
return "height: " + parseInt(window.innerHeight - offsetValue ) + "px!important";
}
the grid would have a dynamic height with regards to window height as well.
The simple answer for this one is that you have an undeclared (null) variable. In this case it is $md5
. From the comment you put this needed to be declared elsewhere in your code
$md5 = new-object -TypeName System.Security.Cryptography.MD5CryptoServiceProvider
The error was because you are trying to execute a method that does not exist.
PS C:\Users\Matt> $md5 | gm
TypeName: System.Security.Cryptography.MD5CryptoServiceProvider
Name MemberType Definition
---- ---------- ----------
Clear Method void Clear()
ComputeHash Method byte[] ComputeHash(System.IO.Stream inputStream), byte[] ComputeHash(byte[] buffer), byte[] ComputeHash(byte[] buffer, int offset, ...
The .ComputeHash()
of $md5.ComputeHash()
was the null valued expression. Typing in gibberish would create the same effect.
PS C:\Users\Matt> $bagel.MakeMeABagel()
You cannot call a method on a null-valued expression.
At line:1 char:1
+ $bagel.MakeMeABagel()
+ ~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
PowerShell by default allows this to happen as defined its StrictMode
When Set-StrictMode is off, uninitialized variables (Version 1) are assumed to have a value of 0 (zero) or $Null, depending on type. References to non-existent properties return $Null, and the results of function syntax that is not valid vary with the error. Unnamed variables are not permitted.
You have done the stored procedure correctly but I think you have not referenced the valido
variable properly. I was looking at some examples and they have put an @ symbol before the parameter like this @Valido
This statement SELECT valido;
should be like this SELECT @valido;
Look at this link mysql stored-procedure: out parameter. Notice the solution with 7 upvotes. He has reference the parameter with an @ sign, hence I suggested you add an @ sign before your parameter valido
I hope that works for you. if it does vote up and mark it as the answer. If not, tell me.
Following Alex's answer I was able to resolve this issue; seems this to be an issue non specific to the packages being installed but of the permissions of homebrew
folders.
sudo chown -R `whoami`:admin /usr/local/bin
For some packages, you may also need to do this to /usr/local/share
or /usr/local/opt
:
sudo chown -R `whoami`:admin /usr/local/share
sudo chown -R `whoami`:admin /usr/local/opt
Sometimes because you are resolving your interface in ContainerBootstraper.cs it's very difficult to catch the error. In my case there was an error in resolving the implementation of the interface I've injected to the api controller. I couldn't find the error because I have resolve the interface in my bootstraperContainer like this:
container.RegisterType<IInterfaceApi, MyInterfaceImplementaionHelper>(new ContainerControlledLifetimeManager());
then I've adde the following line in my bootstrap container : container.RegisterType<MyController>();
so when I compile the project , compiler complained and stopped in above line and showed the error.
Please download the correct version of Oracle Client like Oracle Client 11.2 32-Bit; which resolved the problem for me.
If a function does not return anything, e.g.:
def test():
pass
it has an implicit return value of None
.
Thus, as your pick*
methods do not return anything, e.g.:
def pickEasy():
word = random.choice(easyWords)
word = str(word)
for i in range(1, len(word) + 1):
wordCount.append("_")
the lines that call them, e.g.:
word = pickEasy()
set word
to None
, so wordInput
in getInput
is None
. This means that:
if guess in wordInput:
is the equivalent of:
if guess in None:
and None
is an instance of NoneType
which does not provide iterator/iteration functionality, so you get that type error.
The fix is to add the return type:
def pickEasy():
word = random.choice(easyWords)
word = str(word)
for i in range(1, len(word) + 1):
wordCount.append("_")
return word
For Apache 2.4.9
in addition, look at the httpd-vhosts.conf file in C:\wamp\bin\apache\apache2.4.9\conf\extra
<VirtualHost *:80>
ServerName localhost
ServerAlias localhost
DocumentRoot C:/wamp/www
<Directory "C:/wamp/www/">
Options Indexes FollowSymLinks MultiViews
AllowOverride all
Require local
</Directory>
</VirtualHost>
Change to:
<VirtualHost *:80>
ServerName localhost
ServerAlias localhost
DocumentRoot C:/wamp/www
<Directory "C:/wamp/www/">
Options Indexes FollowSymLinks MultiViews
AllowOverride all
Require all granted
</Directory>
</VirtualHost>
changing from "Require local" to "Require all granted" solved the error 403 in my local network
Python does not have a defined entry point like Java, C, C++, etc. Rather it simply executes a source file line-by-line. The if
statement allows you to create a main
function which will be executed if your file is loaded as the "Main" module rather than as a library in another module.
To be clear, this means that the Python interpreter starts at the first line of a file and executes it. Executing lines like class Foobar:
and def foobar()
creates either a class or a function and stores them in memory for later use.
This issue could be because of wrong entity framework reference or sometimes the Class name not matching the entity name in database. Make sure the Table name matches with class name.
I know this is a bit late, but I'm having a similar issue. SQL*Plus
executes the query successfully, but Oracle SQL Developer
shows the ORA-01843: not a valid month error.
SQL*Plus
seems to know that the date I'm using is in the valid format, whereas Oracle SQL Developer needs to be told explicitly what format my date is in.
SQL*Plus statement
:
select count(*) from some_table where DATE_TIME_CREATED < '09-12-23';
VS
Oracle SQL Developer statement
:
select count(*) from some_table where DATE_TIME_CREATED < TO_DATE('09-12-23','RR-MM-DD');
Check again. Use debugger if must. My guess is that for some item in userResponseDetails this query finds no elements:
.Where(y => y.ResponseId.Equals(item.ResponseId))
so you can't call
.First()
on it. Maybe try
.FirstOrDefault()
if it solves the issue.
Do NOT return NULL value! This is purely so that you can see and diagnose where problem is. Handle these cases properly.
If your clustered index consist from only those fields than the simple, fast and reliable option is to use IGNORE_DUP_KEY
If you create the Clustered index with IGNORE_DUP_KEY ON
Than you can just use:
INSERT INTO EmailsRecebidos (De, Assunto, Data) VALUES (@_DE, @_ASSUNTO, @_DATA)
This should be safe in all cases!
Sounds obvious, but make sure that you are not explicitly ignoring the type:
modelBuilder.Ignore<MyType>();
Note that in JAVA SE 8 a new java.time (JSR-310) package was introduced. This replaces Joda time, Joda users are advised to migrate. For the JAVA SE = 8 way of formatting date and time, see below.
Create a DateTimeFormatter
using DateTimeFormat.forPattern(String)
Using Joda time you would do it like this:
String dateTime = "11/15/2013 08:00:00";
// Format for input
DateTimeFormatter dtf = DateTimeFormat.forPattern("MM/dd/yyyy HH:mm:ss");
// Parsing the date
DateTime jodatime = dtf.parseDateTime(dateTime);
// Format for output
DateTimeFormatter dtfOut = DateTimeFormat.forPattern("MM/dd/yyyy");
// Printing the date
System.out.println(dtfOut.print(jodatime));
Java 8 introduced a new Date and Time library, making it easier to deal with dates and times. If you want to use standard Java version 8 or beyond, you would use a DateTimeFormatter. Since you don't have a time zone in your String
, a java.time.LocalDateTime or a LocalDate, otherwise the time zoned varieties ZonedDateTime and ZonedDate could be used.
// Format for input
DateTimeFormatter inputFormat = DateTimeFormatter.ofPattern("MM/dd/yyyy HH:mm:ss");
// Parsing the date
LocalDate date = LocalDate.parse(dateTime, inputFormat);
// Format for output
DateTimeFormatter outputFormat = DateTimeFormatter.ofPattern("MM/dd/yyyy");
// Printing the date
System.out.println(date.format(outputFormat));
Before Java 8, you would use the a SimpleDateFormat and java.util.Date
String dateTime = "11/15/2013 08:00:00";
// Format for input
SimpleDateFormat dateParser = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
// Parsing the date
Date date7 = dateParser.parse(dateTime);
// Format for output
SimpleDateFormat dateFormatter = new SimpleDateFormat("MM/dd/yyyy");
// Printing the date
System.out.println(dateFormatter.format(date7));
in the new actionmailer, "razorengine" is a dependency. The latest version of Razorengine installs the dependency to System.Web.Razor 3.0.0.
If you use an earlier version in your application (i suppose you are using actionmailer in another project and that you reference the mail functionality from another project) than you get this issue of course.
In an earlier application, i had a webapplication MVC that uses system.web.Razor version 2.0.0. Of course, i got the issue to. How to fix? => Simple!
Install-Package RazorEngine -Version 3.3.0 (because version 3.3.0 will reference system.web.razor 2.0.0)
As an improvement on Peters code above you can use this:
var roleManager = new RoleManager<Microsoft.AspNet.Identity.EntityFramework.IdentityRole>(new RoleStore<IdentityRole>(new ApplicationDbContext()));
if (!roleManager.RoleExists("Member"))
roleManager.Create(new IdentityRole("Member"));
You can also directly use jQuery.
$('#myModal').is(':visible');
I had same problem and found that you can just apply the [JsonIgnore]
attribute to the navigation property you don't want to be serialised. It will still serialise both the parent and child entities but just avoids the self referencing loop.
Here is simple way using HTML5 and jQuery:
1) include two JS file
<script src="jslibs/jquery.js" type="text/javascript"></script>
<script src="jslibs/ajaxupload-min.js" type="text/javascript"></script>
2) include CSS to have cool buttons
<link rel="stylesheet" href="css/baseTheme/style.css" type="text/css" media="all" />
3) create DIV or SPAN
<div class="demo" > </div>
4) write this code in your HTML page
$('.demo').ajaxupload({
url:'upload.php'
});
5) create you upload.php file to have PHP code to upload data.
You can download required JS file from here Here is Example
Its too cool and too fast And easy too! :)
As Daniel A. White said in his comment, the OPTIONS request is most likely created by the client as part of a cross domain JavaScript request. This is done automatically by Cross Origin Resource Sharing (CORS) compliant browsers. The request is a preliminary or pre-flight request, made before the actual AJAX request to determine which request verbs and headers are supported for CORS. The server can elect to support it for none, all or some of the HTTP verbs.
To complete the picture, the AJAX request has an additional "Origin" header, which identified where the original page which is hosting the JavaScript was served from. The server can elect to support request from any origin, or just for a set of known, trusted origins. Allowing any origin is a security risk since is can increase the risk of Cross site Request Forgery (CSRF).
So, you need to enable CORS.
Here is a link that explains how to do this in ASP.Net Web API
http://www.asp.net/web-api/overview/security/enabling-cross-origin-requests-in-web-api#enable-cors
The implementation described there allows you to specify, amongst other things
In general, this works fine, but you need to make sure you are aware of the security risks, especially if you allow cross origin requests from any domain. Think very carefully before you allow this.
In terms of which browsers support CORS, Wikipedia says the following engines support it:
http://en.wikipedia.org/wiki/Cross-origin_resource_sharing#Browser_support
Just to add more to comment
Mainly about how to do performance testing.
I did testing with following code:
import (
"testing"
)
var ss = []string{"Hello", "", "bar", " ", "baz", "ewrqlosakdjhf12934c r39yfashk fjkashkfashds fsdakjh-", "", "123"}
func BenchmarkStringCheckEq(b *testing.B) {
c := 0
b.ResetTimer()
for n := 0; n < b.N; n++ {
for _, s := range ss {
if s == "" {
c++
}
}
}
t := 2 * b.N
if c != t {
b.Fatalf("did not catch empty strings: %d != %d", c, t)
}
}
func BenchmarkStringCheckLen(b *testing.B) {
c := 0
b.ResetTimer()
for n := 0; n < b.N; n++ {
for _, s := range ss {
if len(s) == 0 {
c++
}
}
}
t := 2 * b.N
if c != t {
b.Fatalf("did not catch empty strings: %d != %d", c, t)
}
}
func BenchmarkStringCheckLenGt(b *testing.B) {
c := 0
b.ResetTimer()
for n := 0; n < b.N; n++ {
for _, s := range ss {
if len(s) > 0 {
c++
}
}
}
t := 6 * b.N
if c != t {
b.Fatalf("did not catch empty strings: %d != %d", c, t)
}
}
func BenchmarkStringCheckNe(b *testing.B) {
c := 0
b.ResetTimer()
for n := 0; n < b.N; n++ {
for _, s := range ss {
if s != "" {
c++
}
}
}
t := 6 * b.N
if c != t {
b.Fatalf("did not catch empty strings: %d != %d", c, t)
}
}
And results were:
% for a in $(seq 50);do go test -run=^$ -bench=. --benchtime=1s ./...|grep Bench;done | tee -a log
% sort -k 3n log | head -10
BenchmarkStringCheckEq-4 150149937 8.06 ns/op
BenchmarkStringCheckLenGt-4 147926752 8.06 ns/op
BenchmarkStringCheckLenGt-4 148045771 8.06 ns/op
BenchmarkStringCheckNe-4 145506912 8.06 ns/op
BenchmarkStringCheckLen-4 145942450 8.07 ns/op
BenchmarkStringCheckEq-4 146990384 8.08 ns/op
BenchmarkStringCheckLenGt-4 149351529 8.08 ns/op
BenchmarkStringCheckNe-4 148212032 8.08 ns/op
BenchmarkStringCheckEq-4 145122193 8.09 ns/op
BenchmarkStringCheckEq-4 146277885 8.09 ns/op
Effectively variants usually do not reach fastest time and there is only minimal difference (about 0.01ns/op) between variant top speed.
And if I look full log, difference between tries is greater than difference between benchmark functions.
Also there does not seem to be any measurable difference between BenchmarkStringCheckEq and BenchmarkStringCheckNe or BenchmarkStringCheckLen and BenchmarkStringCheckLenGt even if latter variants should inc c 6 times instead of 2 times.
You can try to get some confidence about equal performance by adding tests with modified test or inner loop. This is faster:
func BenchmarkStringCheckNone4(b *testing.B) {
c := 0
b.ResetTimer()
for n := 0; n < b.N; n++ {
for _, _ = range ss {
c++
}
}
t := len(ss) * b.N
if c != t {
b.Fatalf("did not catch empty strings: %d != %d", c, t)
}
}
This is not faster:
func BenchmarkStringCheckEq3(b *testing.B) {
ss2 := make([]string, len(ss))
prefix := "a"
for i, _ := range ss {
ss2[i] = prefix + ss[i]
}
c := 0
b.ResetTimer()
for n := 0; n < b.N; n++ {
for _, s := range ss2 {
if s == prefix {
c++
}
}
}
t := 2 * b.N
if c != t {
b.Fatalf("did not catch empty strings: %d != %d", c, t)
}
}
Both variants are usually faster or slower than difference between main tests.
It would also good to generate test strings (ss) using string generator with relevant distribution. And have variable lengths too.
So I don't have any confidence of performance difference between main methods to test empty string in go.
And I can state with some confidence, it is faster not to test empty string at all than test empty string. And also it is faster to test empty string than to test 1 char string (prefix variant).
Get the field value through the id and send with ajax
var field = $("#field").val();
$.ajax({
type: "POST",
url: "db.php",
data: {variable_name:field},
async:false,
dataType:"json",
success: function(response) {
alert(response);
}
});
At db.php file get the variable name
$variable_name = $_GET['variable_name'];
mysql_query("SELECT password FROM table_name WHERE password='".md5($variable_name)."'");
If your problem is so special that you really need to have more readers open simultaneously, and your requirements allow not older than SQL Server 2005 DB backend, then the magic word is MARS (Multiple Active Result Sets). http://msdn.microsoft.com/en-us/library/ms345109%28v=SQL.90%29.aspx. Bob Vale's linked topic's solution shows how to enable it: specify MultipleActiveResultSets=true
in your connection string. I just tell this as an interesting possibility, but you should rather transform your solution.
It's a very late answer but I resolved the issue turning off the lazy loading:
db.Configuration.LazyLoadingEnabled = false;
If your xml is written by java.lang.String
you can just using HttpClient
in this way
public void post() throws Exception{
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://www.baidu.com");
String xml = "<xml>xxxx</xml>";
HttpEntity entity = new ByteArrayEntity(xml.getBytes("UTF-8"));
post.setEntity(entity);
HttpResponse response = client.execute(post);
String result = EntityUtils.toString(response.getEntity());
}
pay attention to the Exceptions.
BTW, the example is written by the httpclient version 4.x
Not quite answering the question, but, there is a nice library for those kind of problems: https://github.com/typestack/class-transformer (although it won't work for generic types, as they don't really exists at run-time (here all work is done with class names (which are classes constructors)))
For instance:
import {Type, plainToClass, deserialize} from "class-transformer";
export class Foo
{
@Type(Bar)
public nestedClass: Bar;
public someVar: string;
public someMethod(): string
{
return this.nestedClass.someVar + this.someVar;
}
}
export class Bar
{
public someVar: string;
}
const json = '{"someVar": "a", "nestedClass": {"someVar": "B"}}';
const optionA = plainToClass(Foo, JSON.parse(json));
const optionB = deserialize(Foo, json);
optionA.someMethod(); // works
optionB.someMethod(); // works
I tried:
ps aux | grep -w Z # returns the zombies pid
ps o ppid {returned pid from previous command} # returns the parent
kill -1 {the parent id from previous command}
this will work :)
Maybe remove the semi-colon after set because now the where statement doesn't belong to the update statement. Also the idRequest
could be a problem, better write BookingRequest.idRequest
I think the only cookie you need is JSESSIONID=xxx..
Also NEVER share your cookies, becasuse someone may access your personal data that way. Specially when the cookies are session. These cookies will stop working once you logout the site.
Mainly I use the following command under the cmd
pip install pyqt5
And it works with no problem!
Since I got here with my problem I will add this answer although it is not exactly relevant to the original question. When you are implementing an interface make sure you do not forget to add the type pointer on your member function declarations. Example:
type AnimalSounder interface {
MakeNoise()
}
type Dog struct {
Name string
mean bool
BarkStrength int
}
func (dog *Dog) MakeNoise() {
//implementation
}
I forgot the *(dog Dog) part, I do not recommend it. Then you get into ugly trouble when calling MakeNoice on an AnimalSounder interface variable of type Dog.
I only put this code in my pom.xml and I executed the command maven install.
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
You can see if it's really not set. Run the command set | grep TERM
.
If not, you can set it like that:
export TERM=xterm
With quotes around the date:
mysql> CALL insertEvent('2012.01.01 12:12:12');
Here is the most concise way I am aware of to ignore doclint warnings regardless of java version used. There is no need to duplicate plugin configuration in multiple profiles with slight modifications.
<profiles>
<profile>
<id>doclint-java8-disable</id>
<activation>
<jdk>[1.8,)</jdk>
</activation>
<properties>
<javadoc.opts>-Xdoclint:none</javadoc.opts>
</properties>
</profile>
</profiles>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.9.1</version>
<executions>
<execution>
<id>attach-javadocs</id> <!-- The actual id should be apparent from maven output -->
<configuration>
<additionalparam>${javadoc.opts}</additionalparam>
</configuration>
</execution>
</executions>
</plugin>
...
</plugins>
</build>
Tested on oracle/open jdk 6, 7, 8 and 11.
The node-mysql
library automatically performs escaping when used as you are already doing. See https://github.com/felixge/node-mysql#escaping-query-values
With mysql 5.7, date value like 0000-00-00 00:00:00 is not allowed.
If you want to allow it, you have to update your my.cnf like:
sudo nano /etc/mysql/my.cnf
find
[mysqld]
Add after:
sql_mode="NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
Restart mysql service:
sudo service mysql restart
Done!
In my case, I was getting this error despite registering an existing instance for the interface in question.
Turned out, it was because I was using Unity in WebForms by way of the Unity.WebForms Nuget package, and I had specified a Hierarchical Lifetime manager for the dependency I was providing an instance for, yet a Transient lifetime manager for a subsequent type that depended on the previous type - not usually an issue - but with Unity.WebForms, the lifetime managers work a little differently... your injected types seem to require a Hierarchical lifetime manager, but a new container is still created for every web request (because of the architecture of web forms I guess) as explained excellently in this post.
Anyway, I resolved it by simply not specifying a lifetime manager for the types/instances when registering them.
i.e.
container.RegisterInstance<IMapper>(MappingConfig.GetMapper(), new HierarchicalLifetimeManager());
container.RegisterType<IUserContext, UserContext>(new TransientLifetimeManager());
becomes
container.RegisterInstance<IMapper>(MappingConfig.GetMapper());
container.RegisterType<IUserContext, UserContext>();
So that IMapper can be resolved successfully here:
public class UserContext : BaseContext, IUserContext
{
public UserContext(IMapper _mapper) : base(_mapper)
{
}
...
}
With small custom synchronization context, sync function can wait for completion of async function, without creating deadlock. Here is small example for WinForms app.
Imports System.Threading
Imports System.Runtime.CompilerServices
Public Class Form1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
SyncMethod()
End Sub
' waiting inside Sync method for finishing async method
Public Sub SyncMethod()
Dim sc As New SC
sc.WaitForTask(AsyncMethod())
sc.Release()
End Sub
Public Async Function AsyncMethod() As Task(Of Boolean)
Await Task.Delay(1000)
Return True
End Function
End Class
Public Class SC
Inherits SynchronizationContext
Dim OldContext As SynchronizationContext
Dim ContextThread As Thread
Sub New()
OldContext = SynchronizationContext.Current
ContextThread = Thread.CurrentThread
SynchronizationContext.SetSynchronizationContext(Me)
End Sub
Dim DataAcquired As New Object
Dim WorkWaitingCount As Long = 0
Dim ExtProc As SendOrPostCallback
Dim ExtProcArg As Object
<MethodImpl(MethodImplOptions.Synchronized)>
Public Overrides Sub Post(d As SendOrPostCallback, state As Object)
Interlocked.Increment(WorkWaitingCount)
Monitor.Enter(DataAcquired)
ExtProc = d
ExtProcArg = state
AwakeThread()
Monitor.Wait(DataAcquired)
Monitor.Exit(DataAcquired)
End Sub
Dim ThreadSleep As Long = 0
Private Sub AwakeThread()
If Interlocked.Read(ThreadSleep) > 0 Then ContextThread.Resume()
End Sub
Public Sub WaitForTask(Tsk As Task)
Dim aw = Tsk.GetAwaiter
If aw.IsCompleted Then Exit Sub
While Interlocked.Read(WorkWaitingCount) > 0 Or aw.IsCompleted = False
If Interlocked.Read(WorkWaitingCount) = 0 Then
Interlocked.Increment(ThreadSleep)
ContextThread.Suspend()
Interlocked.Decrement(ThreadSleep)
Else
Interlocked.Decrement(WorkWaitingCount)
Monitor.Enter(DataAcquired)
Dim Proc = ExtProc
Dim ProcArg = ExtProcArg
Monitor.Pulse(DataAcquired)
Monitor.Exit(DataAcquired)
Proc(ProcArg)
End If
End While
End Sub
Public Sub Release()
SynchronizationContext.SetSynchronizationContext(OldContext)
End Sub
End Class
In my case, I had trouble with GoDaddy and SSL encryption.
Setting the encryption to Null and Port to 80 (Or any supportive port) did the job.
I've created a static "startup" file and added the code to force the DLL to be copied to the bin folder in it as a way to separate this 'configuration'.
[DbConfigurationType(typeof(DbContextConfiguration))]
public static class Startup
{
}
public class DbContextConfiguration : DbConfiguration
{
public DbContextConfiguration()
{
// This is needed to force the EntityFramework.SqlServer DLL to be copied to the bin folder
SetProviderServices(SqlProviderServices.ProviderInvariantName, SqlProviderServices.Instance);
}
}
In Bluetooth, all objects are identified by UUIDs. These include services, characteristics and many other things. Bluetooth maintains a database of assigned numbers for standard objects, and assigns sub-ranges for vendors (that have paid enough for a reservation). You can view this list here:
https://www.bluetooth.com/specifications/assigned-numbers/
If you are implementing a standard service (e.g. a serial port, keyboard, headset, etc.) then you should use that service's standard UUID - that will allow you to be interoperable with devices that you didn't develop.
If you are implementing a custom service, then you should generate unique UUIDs, in order to make sure incompatible third-party devices don't try to use your service thinking it is something else. The easiest way is to generate random ones and then hard-code the result in your application (and use the same UUIDs in the devices that will connect to your service, of course).
Change the code where you load the partial view to:
@Html.Partial("_CreateNote", new QuickNotes.Models.Note())
This is because the partial view is expecting a Note but is getting passed the model of the parent view which is the IEnumerable
You are checking whether the string contains all illegal characters. Change the ||
s to &&
s.
In my case I had an issue around using Microsoft.ReportViewer.WebForms. I removed validate=true from add verb
line in web.config and it started working:
<system.web>
<httpHandlers>
<add verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
In addition to Salvador Dali's answer:
on the server side don't forget that the data comes in base64 string format. It's important because in some programming languages you need to explisitely say that this string should be regarded as bytes not simple Unicode string.
Otherwise decoding won't work: the image will be saved but it will be an unreadable file.
In some cases cleaning the project/solution, physically removing bin/
and obj/
and rebuilding would resolve such errors. This could happen when, for example, some packages and references being installed/added and then removed, leaving some artifacts behind.
It happened to me with Microsoft.Web.Infrastructure
: initially, the project didn't require that assembly. After some experiments, the net effect of which was supposed to be zero at the end, I got this exception. Above steps resolved it without the need to install unused dependency.
My problem turned out to be blank spaces in the txt file that I was using to feed the WMI Powershell script.
Something like...
Minutes.minutesBetween(getStart(), getEnd()).getMinutes();
I wanted also to check if a remote file exist but with RSH. I have tried the previous solutions but they didn't work with RSH.
Finally, I did I short function which works fine:
function existRemoteFile ()
{
REMOTE=$1
FILE=$2
RESULT=$(rsh -l user $REMOTE "test -e $FILE && echo \"0\" || echo \"1\"")
if [ $RESULT -eq 0 ]
then
return 0
else
return 1
fi
}
I installed MVC4 via WPI and it helped me.
First try to open the file with a decompiler such as ILSpy, your dll might be corrupt. I had this error on an online web site, when I downloaded the dll and tried to open it, it was corrupt, probably some error occurred while uploading it via ftp.
You'll find that in javascript, there are usually many different ways to do the same thing or find the same information. In your example, you are looking for some element that is guaranteed to always exist. window
and document
both fit the bill (with just a few differences).
From mozilla dev network:
addEventListener() registers a single event listener on a single target. The event target may be a single element in a document, the document itself, a window, or an XMLHttpRequest.
So as long as you can count on your "target" always being there, the only difference is what events you're listening for, so just use your favorite.
Just solved the issue. After digging around for a while longer, I found this SO post which covers the exact same situation. It got me in the right track.
Basically, the XmlSerializer
needs to know the default namespace if derived classes are included as extra types. The exact reason why this has to happen is still unknown but, still, serialization is working now.
The value is null, you have to check why... (in addition to the implementation of the solutions proposed here)
Check the hardware Connections.
An alternative implementation in pure powershell (without Add-Type
of c# source):
#requires -Version 5
#requires -PSEdition Desktop
class TrustAllCertsPolicy : System.Net.ICertificatePolicy {
[bool] CheckValidationResult([System.Net.ServicePoint] $a,
[System.Security.Cryptography.X509Certificates.X509Certificate] $b,
[System.Net.WebRequest] $c,
[int] $d) {
return $true
}
}
[System.Net.ServicePointManager]::CertificatePolicy = [TrustAllCertsPolicy]::new()
If you return a serializable object, WebAPI will automatically send JSON or XML based on the Accept header that your client sends.
If you return a string, you'll get a string.
Unfortunately there is only the function setColumnWidth(int columnIndex,
int width) from class Sheet
; in which width is a number of characters in the standard font (first font in the workbook) if your fonts are changing you cannot use it.
There is explained how to calculate the width in function of a font size. The formula is:
width = Truncate([{NumOfVisibleChar} * {MaxDigitWidth} + {5PixelPadding}] / {MaxDigitWidth}*256) / 256
You can always use autoSizeColumn(int column, boolean useMergedCells)
after inputting the data in your Sheet
.
I was getting the same error when i upgrade MVC4 to MVC5 version, Firstly i Upgraded the calling assembly which was depends on
> System.Web.WebPages.Razor, Version=2.0.0.0
after that updated the web.config files under the Views folder, updated following packages from
<configSections>
<sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
<section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
</sectionGroup>
</configSections>
to
<configSections>
<sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
<section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
</sectionGroup>
</configSections>
and also updated
<host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
to
<host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.2.7.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
these steps works for me
Issue happens because Microsoft Security Update MS11-100 limits number of keys in Forms collection during HTTP POST request. To alleviate this problem you need to increase that number.
This can be done in your application Web.Config in the
<appSettings>
section (create the section directly under<configuration>
if it doesn’t exist). Add 2 lines similar to the lines below to the section:<add key="aspnet:MaxHttpCollectionKeys" value="2000" /> <add key="aspnet:MaxJsonDeserializerMembers" value="2000" />
The above example set the limit to 2000 keys. This will lift the limitation and the error should go away.
It probably is the # sign like tho others have mentioned because this appears to work just fine.
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
</head>
<body>
<select id="#ticket_category_clone">
<option value="hw">Hardware</option>
<option>fsdf</option>
<option>sfsd</option>
<option>sdfs</option>
</select>
<script type="text/javascript">
(function check() {
var e = document.getElementById("#ticket_category_clone");
var str = e.options[e.selectedIndex].text;
alert(str);
if (str === "Hardware") {
alert('Hi');
}
})();
</script>
</body>
I had the similar issue. The problem was in the passwords: the Keystore and private key used different passwords. (KeyStore explorer was used)
After creating Keystore with the same password as private key had the issue was resolved.
I have done this as following.I have use getDropDownView() and getView() methods.
Use getDropDownView()
for opened Spinner.
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.context_row_icon, null);
}
TextView mTitle = (TextView) view.findViewById(R.id.context_label);
ImageView flag = (ImageView) view.findViewById(R.id.context_icon);
mTitle.setText(values[position].getLabel(activity));
if (!((LabelItem) getItem(position)).isEnabled()) {
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item_disabled));
} else {
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item));
}
return view;
}
And Use getView()
for closed Spinner.
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.context_row_icon, null);
}
TextView mTitle = (TextView) view.findViewById(R.id.context_label);
ImageView flag = (ImageView) view.findViewById(R.id.context_icon);
mTitle.setText(values[position].getLabel(activity));
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item_disabled));
return view;
}
This error can be resolved by adding MessageBoxOptions.ServiceNotification
.
MessageBox.Show(msg, "Print Error", System.Windows.Forms.MessageBoxButtons.YesNo,
System.Windows.Forms.MessageBoxIcon.Error,
System.Windows.Forms.MessageBoxDefaultButton.Button1,
System.Windows.Forms.MessageBoxOptions.ServiceNotification);
But it is not going to show any dialog box if your web application is installed on IIS or server.Because in IIS or server it is hosted on worker process which dont have any desktop.
if you use spring boot check in application.propertiese
this property is commented or remove it if exist.
Whatever changes you would make in function will persist.So there is no need to return anything.You can pass 2d array and change it whenever you will like.
void MakeGridOfCounts(int Grid[][6])
{
cGrid[6][6] = {{0, }, {0, }, {0, }, {0, }, {0, }, {0, }};
}
or
void MakeGridOfCounts(int Grid[][6],int answerArray[][6])
{
....//do the changes in the array as you like they will reflect in main...
}
I would agree with @evillinux, It would be best to make your background image semi transparent so it supports < ie8
The other suggestions of using another div are also a great option, and it's the way to go if you want to do this in css. For example if the site had such features as selecting your own background color. I would suggest using a filter for older IE. eg:
filter:Alpha(opacity=50)
Dont forget
@ORM\HasLifecycleCallbacks()
Entity :
/**
* Set gameDate
*
* @ORM\PrePersist
*/
public function setGameDate()
{
$this->dateCreated = new \DateTime();
return $this;
}
View:
{{ item.gameDate|date('Y-m-d H:i:s') }}
>> Output 2013-09-18 16:14:20
Try
ps -ef | grep "KEYWORD" | awk '{print $2}'
That command should give you the PID of the processes with KEYWORD in them. In this instance, awk
is returning what is in the 2nd column from the output.
I got this error when I had ModalPopupExtender in the update panel... deubbing my code I found that the above error is caused because of updatepanel updatemode is conditional... so i change it to always then problem is solved.
void
is a reserved JavaScript keyword. It evaluates the expression and always returns undefined
.
I was receiving this error because I happened to be opening a website project over a mapped network drive z:\folder
instead of connecting via a UNC path \\server\path\folder
. Once I opened the project from the UNC path it built just fine.
How do I catch multiple exceptions in one line (except block)
Do this:
try:
may_raise_specific_errors():
except (SpecificErrorOne, SpecificErrorTwo) as error:
handle(error) # might log or have some other default behavior...
The parentheses are required due to older syntax that used the commas to assign the error object to a name. The as
keyword is used for the assignment. You can use any name for the error object, I prefer error
personally.
To do this in a manner currently and forward compatible with Python, you need to separate the Exceptions with commas and wrap them with parentheses to differentiate from earlier syntax that assigned the exception instance to a variable name by following the Exception type to be caught with a comma.
Here's an example of simple usage:
import sys
try:
mainstuff()
except (KeyboardInterrupt, EOFError): # the parens are necessary
sys.exit(0)
I'm specifying only these exceptions to avoid hiding bugs, which if I encounter I expect the full stack trace from.
This is documented here: https://docs.python.org/tutorial/errors.html
You can assign the exception to a variable, (e
is common, but you might prefer a more verbose variable if you have long exception handling or your IDE only highlights selections larger than that, as mine does.) The instance has an args attribute. Here is an example:
import sys
try:
mainstuff()
except (KeyboardInterrupt, EOFError) as err:
print(err)
print(err.args)
sys.exit(0)
Note that in Python 3, the err
object falls out of scope when the except
block is concluded.
You may see code that assigns the error with a comma. This usage, the only form available in Python 2.5 and earlier, is deprecated, and if you wish your code to be forward compatible in Python 3, you should update the syntax to use the new form:
import sys
try:
mainstuff()
except (KeyboardInterrupt, EOFError), err: # don't do this in Python 2.6+
print err
print err.args
sys.exit(0)
If you see the comma name assignment in your codebase, and you're using Python 2.5 or higher, switch to the new way of doing it so your code remains compatible when you upgrade.
suppress
context managerThe accepted answer is really 4 lines of code, minimum:
try:
do_something()
except (IDontLikeYouException, YouAreBeingMeanException) as e:
pass
The try
, except
, pass
lines can be handled in a single line with the suppress context manager, available in Python 3.4:
from contextlib import suppress
with suppress(IDontLikeYouException, YouAreBeingMeanException):
do_something()
So when you want to pass
on certain exceptions, use suppress
.
The first one will be implemented:
Collection.Where(x => x.Age == 10)
.Where(x => x.Name == "Fido") // applied to the result of the previous
.Where(x => x.Fat == true) // applied to the result of the previous
As opposed to the much simpler (and far fasterpresumably faster):
// all in one fell swoop
Collection.Where(x => x.Age == 10 && x.Name == "Fido" && x.Fat == true)
On the off chance it may help others I'll share a related anecdote.
I encountered this exact error (Invalid UTF-8 middle byte 0x3f) running a PowerShell script via the PowerShell Integrated Script Environment (ISE). The identical script, executed outside the ISE, works fine. The code uses the Confluence v3 and v5.x REST APIs and this error is logged on the Confluence v5.x server - presumably because the ISE somehow mucks with the request.
public ActionResult ActionName(string ReqParam1, string ReqParam2, string ReqParam3, string ReqParam4)
{
this.ControllerContext.HttpContext.Response.Headers.Add("Access-Control-Allow-Origin","*");
/*
--Your code goes here --
*/
return Json(new { ReturnData= "Data to be returned", Success=true }, JsonRequestBehavior.AllowGet);
}
With MS SQL 2008, we can list supported error messages in the table sys.messages
SELECT * FROM sys.messages
This can happen if you execute a query while iterating over the results from another query. It is not clear from your example where this happens because the example is not complete.
One thing that can cause this is lazy loading triggered when iterating over the results of some query.
This can be easily solved by allowing MARS in your connection string. Add MultipleActiveResultSets=true
to the provider part of your connection string (where Data Source, Initial Catalog, etc. are specified).
Function imageMorph
will create a new img element therefore the id is removed.
Changed to
$("#wrapper > img")
You should use live() function for click event if you want you rocket lanch again.
Updated demo: http://jsfiddle.net/ynhat/QQRsW/4/
We can use the below code also to get the HTML Response in java
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.HttpResponse;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import org.apache.log4j.Logger;
public static void main(String[] args) throws Exception {
HttpClient client = new DefaultHttpClient();
// args[0] :- http://hostname:8080/abc/xyz/CheckResponse
HttpGet request1 = new HttpGet(args[0]);
HttpResponse response1 = client.execute(request1);
int code = response1.getStatusLine().getStatusCode();
try (BufferedReader br = new BufferedReader(new InputStreamReader((response1.getEntity().getContent())));) {
// Read in all of the post results into a String.
String output = "";
Boolean keepGoing = true;
while (keepGoing) {
String currentLine = br.readLine();
if (currentLine == null) {
keepGoing = false;
} else {
output += currentLine;
}
}
System.out.println("Response-->" + output);
} catch (Exception e) {
System.out.println("Exception" + e);
}
}
Try explicitly enumerating the results by calling ToList()
.
Change
foreach (var item in query)
to
foreach (var item in query.ToList())
This is just because the application is built in non unicode language fonts and you are running the system on unicode fonts. change your default non unicode fonts to arabic by going in regional settings advanced tab in control panel. That will solve your problem.
there is a bit other case - data is sent from client to server. when you are using controller method and model is huge :
[HttpPost]
public ActionResult AddOrUpdateConsumerFile(FileMetaDataModelView inputModel)
{
if (inputModel == null) return null;
....
}
system throws exception like this "Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property. Parameter name: input"
Only changing Web.config settings is not enough to help in this case. You could additionally override mvc json serializer for supporting huge data model sizes or manually deserialize model from Request. Your controller method becomes:
[HttpPost]
public ActionResult AddOrUpdateConsumerFile()
{
FileMetaDataModelView inputModel = RequestManager.GetModelFromJsonRequest<FileMetaDataModelView>(HttpContext.Request);
if (inputModel == null) return null;
......
}
public static T GetModelFromJsonRequest<T>(HttpRequestBase request)
{
string result = "";
using (Stream req = request.InputStream)
{
req.Seek(0, System.IO.SeekOrigin.Begin);
result = new StreamReader(req).ReadToEnd();
}
return JsonConvert.DeserializeObject<T>(result);
}
One more way to do this is using "System.Linq.Dynamic" library. You can get this library from Nuget. No need of any custom implementations or sortable List :)
using System.Linq.Dynamic;
private bool sortAscending = false;
private void dataGridView_ColumnHeaderMouseClick ( object sender, DataGridViewCellMouseEventArgs e )
{
if ( sortAscending )
dataGridView.DataSource = list.OrderBy ( dataGridView.Columns [ e.ColumnIndex ].DataPropertyName ).ToList ( );
else
dataGridView.DataSource = list.OrderBy ( dataGridView.Columns [ e.ColumnIndex ].DataPropertyName ).Reverse ( ).ToList ( );
sortAscending = !sortAscending;
}
You can define foreign key by:
public class Parent
{
public int Id { get; set; }
public virtual ICollection<Child> Childs { get; set; }
}
public class Child
{
public int Id { get; set; }
// This will be recognized as FK by NavigationPropertyNameForeignKeyDiscoveryConvention
public int ParentId { get; set; }
public virtual Parent Parent { get; set; }
}
Now ParentId is foreign key property and defines required relation between child and existing parent. Saving the child without exsiting parent will throw exception.
If your FK property name doesn't consists of the navigation property name and parent PK name you must either use ForeignKeyAttribute data annotation or fluent API to map the relation
Data annotation:
// The name of related navigation property
[ForeignKey("Parent")]
public int ParentId { get; set; }
Fluent API:
modelBuilder.Entity<Child>()
.HasRequired(c => c.Parent)
.WithMany(p => p.Childs)
.HasForeignKey(c => c.ParentId);
Other types of constraints can be enforced by data annotations and model validation.
Edit:
You will get an exception if you don't set ParentId
. It is required property (not nullable). If you just don't set it it will most probably try to send default value to the database. Default value is 0 so if you don't have customer with Id = 0 you will get an exception.
In your code, your first wait for task to execute but you haven't started it so it waits indefinitely. Try this:
Task<Customer> task = GetCustomers();
task.RunSynchronously();
Edit:
You say that you get an exception. Please post more details, including stack trace.
Mono contains the following test case:
[Test]
public void ExecuteSynchronouslyTest ()
{
var val = 0;
Task t = new Task (() => { Thread.Sleep (100); val = 1; });
t.RunSynchronously ();
Assert.AreEqual (1, val);
}
Check if this works for you. If it does not, though very unlikely, you might have some odd build of Async CTP. If it does work, you might want to examine what exactly the compiler generates and how Task
instantiation is different from this sample.
Edit #2:
I checked with Reflector that the exception you described occurs when m_action
is null
. This is kinda odd, but I'm no expert on Async CTP. As I said, you should decompile your code and see how exactly Task
is being instantiated any how come its m_action
is null
.
The problem here is that your timer starts a thread and when it runs the callback function, the callback function ( updatelistview) is accessing controls on UI thread so this can not be done becuase of this
Just call the function. If it raises an exception, the unit test framework will flag this as an error. You might like to add a comment, e.g.:
sValidPath=AlwaysSuppliesAValidPath()
# Check PathIsNotAValidOne not thrown
MyObject(sValidPath)
I accidentally set my service to run as Local service
solution was to switch to Local System
There is no easy way to animate hiding/showing views. You can try method described in following answer: How do I animate View.setVisibility(GONE)
The syntax was wrong for me, you must include the quotes:
netsh http add urlacl url="http://+:4200/" user=everyone
otherwise I received "The parameter is incorrect"
I had the same issue and did all the tips with no luck. Finally when I changed password to something different, for some reason it worked! (the initial password or the new one did not have any special characters)
This is how I handle iPhone (and similar) devices [not iPad]:
In my CSS file:
@media only screen and (max-width: 480px), only screen and (max-device-width: 480px) {
/* CSS overrides for mobile here */
}
In the head of my HTML document:
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
java.time.temporal.ChronoUnit.DAYS.between(
earlier.toLocalDate(),
later.toLocalDate()
)
…or…
java.time.temporal.ChronoUnit.HOURS.between(
earlier.truncatedTo( ChronoUnit.HOURS ) ,
later.truncatedTo( ChronoUnit.HOURS )
)
FYI, the Joda-Time project is now in maintenance mode, with the team advising migration to the java.time classes.
The equivalent of Joda-Time DateTime
is ZonedDateTime
.
ZoneId z = ZoneId.of( "Pacific/Auckland" ) ;
ZonedDateTime now = ZonedDateTime.now( z ) ;
Apparently you want to count the days by dates, meaning you want to ignore the time of day. For example, starting a minute before midnight and ending a minute after midnight should result in a single day. For this behavior, extract a LocalDate
from your ZonedDateTime
. The LocalDate
class represents a date-only value without time-of-day and without time zone.
LocalDate localDateStart = zdtStart.toLocalDate() ;
LocalDate localDateStop = zdtStop.toLocalDate() ;
Use the ChronoUnit
enum to calculate elapsed days or other units.
long days = ChronoUnit.DAYS.between( localDateStart , localDateStop ) ;
As for you asking about a more general way to do this counting where you are interested the delta of hours as hour-of-the-clock rather than complete hours as spans-of-time of sixty minutes, use the truncatedTo
method.
Here is your example of 14:45 to 15:12 on same day.
ZoneId z = ZoneId.of( "America/Montreal" );
ZonedDateTime start = ZonedDateTime.of( 2017 , 1 , 17 , 14 , 45 , 0 , 0 , z );
ZonedDateTime stop = ZonedDateTime.of( 2017 , 1 , 17 , 15 , 12 , 0 , 0 , z );
long hours = ChronoUnit.HOURS.between( start.truncatedTo( ChronoUnit.HOURS ) , stop.truncatedTo( ChronoUnit.HOURS ) );
1
This does not work for days. Use toLocalDate() in this case.
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
I just tested a couple paths using Excel 2013 on on Windows 7. I found the overall pathname limit to be 213 and the basename length to be 186. At least the error dialog for exceeding basename length is clear:
And trying to move a not-too-long basename to a too-long-pathname is also very clear:
The pathname error is deceptive, though. Quite unhelpful:
This is a lazy Microsoft restriction. There's no good reason for these arbitrary length limits, but in the end, it’s a real bug in the error dialog.
import base64
a = 'eW91ciB0ZXh0'
base64.b64decode(a)
A quick way to decode it without importing anything:
'eW91ciB0ZXh0'.decode('base64')
or more descriptive
>>> a = 'eW91ciB0ZXh0'
>>> a.decode('base64')
'your text'
First, this is not an error. The 3xx
denotes a redirection. The real errors are 4xx
(client error) and 5xx
(server error).
If a client gets a 304 Not Modified
, then it's the client's responsibility to display the resouce in question from its own cache. In general, the proxy shouldn't worry about this. It's just the messenger.
To treat all compiler warnings as compilation errors
and if you want to get rid of it
To disable all compiler warnings
To prepare the configration for WCF is hard, and sometimes a service type definition go unnoticed.
I wrote only the namespace in the service tag, so I got the same error.
<service name="ServiceNameSpace">
Do not forget, the service tag needs a fully-qualified service class name.
<service name="ServiceNameSpace.ServiceClass">
For the other folks who are like me.
Have a look at the jai (-> mirror) (javascript audio interface) site. From looking at their source, they appear to be calling play()
repeatedly, and they mention that their library might be appropriate for use in HTML5-based games.
You can fire multiple audio events simultaneously, which could be used for creating Javascript games, or having a voice speaking over some background music
I got this solution and it is working for me
if (myNewDT.MyDateTime == null)
{
myNewDT.MyDateTime = DateTime.Now();
}
Since I've asked this question, I've started using python-symmetric-jsonrpc. It is quite good, can be used between python and non-python software and follow the JSON-RPC standard. But it lacks some examples.
If you are using API 8 or above, you can use the readily available Patterns
class to validate email. Sample code:
public final static boolean isValidEmail(CharSequence target) {
if (target == null)
return false;
return android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
}
By chance if you are even supporting API level less than 8, then you can simply copy the Patterns.java
file into your project and reference it. You can get the source code for Patterns.java
from this link
A quick note: Assume.assumeTrue(condition)
ignores rest of the steps but passes the test.
To fail the test, use org.junit.Assert.fail()
inside the conditional statement. Works same like Assume.assumeTrue()
but fails the test.
The only thing that worked in my case was by using david valentine code. Using Root Attr. in the Person class did not help.
I have this simple Xml:
<?xml version="1.0"?>
<personList>
<Person>
<FirstName>AAAA</FirstName>
<LastName>BBB</LastName>
</Person>
<Person>
<FirstName>CCC</FirstName>
<LastName>DDD</LastName>
</Person>
</personList>
C# class:
public class Person
{
public string FirstName { get; set; }
public string LastName { get; set; }
}
De-Serialization C# code from a Main method:
XmlRootAttribute xRoot = new XmlRootAttribute();
xRoot.ElementName = "personList";
xRoot.IsNullable = true;
using (StreamReader reader = new StreamReader(xmlFilePath))
{
List<Person> result = (List<Person>)(new XmlSerializer(typeof(List<Person>), xRoot)).Deserialize(reader);
int numOfPersons = result.Count;
}
In your binding configuration, there are four timeout values you can tweak:
<bindings>
<basicHttpBinding>
<binding name="IncreasedTimeout"
sendTimeout="00:25:00">
</binding>
</basicHttpBinding>
The most important is the sendTimeout
, which says how long the client will wait for a response from your WCF service. You can specify hours:minutes:seconds
in your settings - in my sample, I set the timeout to 25 minutes.
The openTimeout
as the name implies is the amount of time you're willing to wait when you open the connection to your WCF service. Similarly, the closeTimeout
is the amount of time when you close the connection (dispose the client proxy) that you'll wait before an exception is thrown.
The receiveTimeout
is a bit like a mirror for the sendTimeout
- while the send timeout is the amount of time you'll wait for a response from the server, the receiveTimeout
is the amount of time you'll give you client to receive and process the response from the server.
In case you're send back and forth "normal" messages, both can be pretty short - especially the receiveTimeout
, since receiving a SOAP message, decrypting, checking and deserializing it should take almost no time. The story is different with streaming - in that case, you might need more time on the client to actually complete the "download" of the stream you get back from the server.
There's also openTimeout, receiveTimeout, and closeTimeout. The MSDN docs on binding gives you more information on what these are for.
To get a serious grip on all the intricasies of WCF, I would strongly recommend you purchase the "Learning WCF" book by Michele Leroux Bustamante:
and you also spend some time watching her 15-part "WCF Top to Bottom" screencast series - highly recommended!
For more advanced topics I recommend that you check out Juwal Lowy's Programming WCF Services book.
I haven't used PowerShell V2's Send-MailMessage, but I have used System.Net.Mail.SMTPClient class in V1 to send messages to a Gmail account for demo purposes. This might be overkill, but I run an SMTP server on my Windows Vista laptop (see this link). If you're in an enterprise you will already have a mail relay server, and this step isn't necessary. Having an SMTP server I'm able to send email to my Gmail account with the following code:
$smtpmail = [System.Net.Mail.SMTPClient]("127.0.0.1")
$smtpmail.Send("[email protected]", "[email protected]", "Test Message", "Message via local SMTP")
Let me present to you a glorious but terrifying hack:
import types
def _obj():
return lambda: None
def LET(bindings, body, env=None):
'''Introduce local bindings.
ex: LET(('a', 1,
'b', 2),
lambda o: [o.a, o.b])
gives: [1, 2]
Bindings down the chain can depend on
the ones above them through a lambda.
ex: LET(('a', 1,
'b', lambda o: o.a + 1),
lambda o: o.b)
gives: 2
'''
if len(bindings) == 0:
return body(env)
env = env or _obj()
k, v = bindings[:2]
if isinstance(v, types.FunctionType):
v = v(env)
setattr(env, k, v)
return LET(bindings[2:], body, env)
You can now use this LET
form as such:
map(lambda x: LET(('y', x + 1,
'z', x - 1),
lambda o: o.y * o.z),
[1, 2, 3])
which gives: [0, 3, 8]
nc or 'netcat' also has a scan mode which may be of use.
For those who are having issues with in MVC3 with JSON that's automatically being deserialized for a model binder and is too large, here is a solution.
Thanks to http://blog.naver.com/techshare/100145191355 and https://gist.github.com/DalSoft/1588818 for pointing me in the right direction for how to do this. The last link on the first site contains full source code for the solution.
Edit: As stated in the comments, the following solution applies to PowerShell V1 only.
See this blog post on "Technical Adventures of Adam Weigert" for details on how to implement this.
Example usage (copy/paste from Adam Weigert's blog):
Try {
echo " ::Do some work..."
echo " ::Try divide by zero: $(0/0)"
} -Catch {
echo " ::Cannot handle the error (will rethrow): $_"
#throw $_
} -Finally {
echo " ::Cleanup resources..."
}
Otherwise you'll have to use exception trapping.
I am surprised that no one has mentioned Singleton methods.
a=[]
b=[]
def b.some_method do ... end
b.some_method #fine
a.some_method #raises exception
It gives granular control over the open class concept. You can also use Eigenclasses to mixin a module into a specific object instead of all objects of a given class.
o=Object.new
class << o
include SomeModule
end
Python also doesn't have a switch statement without using ugly hacks which can decrease code readability.
Ruby has no statements,only expressions. This add a lot of flexibility.
You can get a reference to any method and pass that around.
a=[]
m=a.method :map #m is now referencing an instance of Method and can be passed like any other reference to an object and is invoked with the call method and an optional block
Easy nested lexical scope giving controlled global variables.
lambda {
global=nil
def Kernel.some_global= val
global||=val
end
def Kernel.some_global
global
end
}.call
Once that lambda is invoked, global is out of scope, but you can set it(only once in this example) and then access it anywhere in your program. Hopefully the value of this is clear.
Creating a DSL is much easier in Ruby than in Python. Creating something like Rake or RSpec in Python is possible but what a nightmare it would be. So to answer your question Ruby has much more flexibility than Python. It is not at the flexibility level of Lisp, but is arguably the most flexible OO language.
Python is great and all but it is so stiff compared to Ruby. Ruby is less verbose, more readable(as in it reads much closer to a natural language), python reads like english translated to french.
Python is also annoying in that its community is always in lock-step with Guido, if Guido says that you don't need feature X, everyone in the community believes it and parrots it. It leads to a stale community, kind of like the Java community that simply can't understand what anonymous functions and closures buy you. The Python community is not as annoying as Haskell's, but still.
jQuery (1.4.2) gets confused if you have any form elements named "action". You can get around this by using the DOM attribute methods or simply avoid having form elements named "action".
<form action="foo">
<button name="action" value="bar">Go</button>
</form>
<script type="text/javascript">
$('form').attr('action', 'baz'); //this fails silently
$('form').get(0).setAttribute('action', 'baz'); //this works
</script>
If you want a single JavaScript object such as the following:
{ uniqueIDofSelect: "uniqueID", optionValue: "2" }
(where option 2, "Absent", is the current selection) then the following code should produce it:
var jsObj = null;
var status = document.getElementsByName("status")[0];
for (i = 0, i < status.options.length, ++i) {
if (options[i].selected ) {
jsObj = { uniqueIDofSelect: status.id, optionValue: options[i].value };
break;
}
}
If you want an array of all such objects (not just the selected one), use michael's code but swap out status.options[i].text
for status.id
.
If you want a string that contains a JSON representation of the selected object, use this instead:
var jsonStr = "";
var status = document.getElementsByName("status")[0];
for (i = 0, i < status.options.length, ++i) {
if (options[i].selected ) {
jsonStr = '{ '
+ '"uniqueIDofSelect" : '
+ '"' + status.id + '"'
+ ", "
+ '"optionValue" : '
+ '"'+ options[i].value + '"'
+ ' }';
break;
}
}
eval("javascript code");
it is extensively used when dealing with JSON.
I had this problem with this kind of simple form:
public partial class MyForm : Form
{
public MyForm()
{
Load += new EventHandler(Form1_Load);
}
private void Form1_Load(Object sender, EventArgs e)
{
InitializeComponent();
}
internal void UpdateLabel(string s)
{
Invoke(new Action(() => { label1.Text = s; }));
}
}
Then for n
other async threads I was using new MyForm().UpdateLabel(text)
to try and call the UI thread, but the constructor gives no handle to the UI thread instance, so other threads get other instance handles, which are either Object reference not set to an instance of an object
or Invoke or BeginInvoke cannot be called on a control until the window handle has been created
. To solve this I used a static object to hold the UI handle:
public partial class MyForm : Form
{
private static MyForm _mf;
public MyForm()
{
Load += new EventHandler(Form1_Load);
}
private void Form1_Load(Object sender, EventArgs e)
{
InitializeComponent();
_mf = this;
}
internal void UpdateLabel(string s)
{
_mf.Invoke((MethodInvoker) delegate { _mf.label1.Text = s; });
}
}
I guess it's working fine, so far...
Implement the JDK FileVisitor interface. Here is an example http://wilddiary.com/list-files-matching-a-naming-pattern-java/
When you do throw ex
, that thrown exception becomes the "original" one. So all previous stack trace will not be there.
If you do throw
, the exception just goes down the line and you'll get the full stack trace.
The problem could also be a in a different namespace in svc file as it is in svc.cs file.
In svc file namespace must be in the following format.
Service="Namespace.SvcClassName"
I ported some of the code in Zend_Validator_Email:
@FacesValidator("emailValidator")
public class EmailAddressValidator implements Validator {
private String localPart;
private String hostName;
private boolean domain = true;
Locale locale;
ResourceBundle bundle;
private List<FacesMessage> messages = new ArrayList<FacesMessage>();
private HostnameValidator hostnameValidator;
@Override
public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {
setOptions(component);
String email = (String) value;
boolean result = true;
Pattern pattern = Pattern.compile("^(.+)@([^@]+[^.])$");
Matcher matcher = pattern.matcher(email);
locale = context.getViewRoot().getLocale();
bundle = ResourceBundle.getBundle("com.myapp.resources.validationMessages", locale);
boolean length = true;
boolean local = true;
if (matcher.find()) {
localPart = matcher.group(1);
hostName = matcher.group(2);
if (localPart.length() > 64 || hostName.length() > 255) {
length = false;
addMessage("enterValidEmail", "email.AddressLengthExceeded");
}
if (domain == true) {
hostnameValidator = new HostnameValidator();
hostnameValidator.validate(context, component, hostName);
}
local = validateLocalPart();
if (local && length) {
result = true;
} else {
result = false;
}
} else {
result = false;
addMessage("enterValidEmail", "invalidEmailAddress");
}
if (result == false) {
throw new ValidatorException(messages);
}
}
private boolean validateLocalPart() {
// First try to match the local part on the common dot-atom format
boolean result = false;
// Dot-atom characters are: 1*atext *("." 1*atext)
// atext: ALPHA / DIGIT / and "!", "#", "$", "%", "&", "'", "*",
// "+", "-", "/", "=", "?", "^", "_", "`", "{", "|", "}", "~"
String atext = "a-zA-Z0-9\\u0021\\u0023\\u0024\\u0025\\u0026\\u0027\\u002a"
+ "\\u002b\\u002d\\u002f\\u003d\\u003f\\u005e\\u005f\\u0060\\u007b"
+ "\\u007c\\u007d\\u007e";
Pattern regex = Pattern.compile("^["+atext+"]+(\\u002e+["+atext+"]+)*$");
Matcher matcher = regex.matcher(localPart);
if (matcher.find()) {
result = true;
} else {
// Try quoted string format
// Quoted-string characters are: DQUOTE *([FWS] qtext/quoted-pair) [FWS] DQUOTE
// qtext: Non white space controls, and the rest of the US-ASCII characters not
// including "\" or the quote character
String noWsCtl = "\\u0001-\\u0008\\u000b\\u000c\\u000e-\\u001f\\u007f";
String qText = noWsCtl + "\\u0021\\u0023-\\u005b\\u005d-\\u007e";
String ws = "\\u0020\\u0009";
regex = Pattern.compile("^\\u0022(["+ws+qText+"])*["+ws+"]?\\u0022$");
matcher = regex.matcher(localPart);
if (matcher.find()) {
result = true;
} else {
addMessage("enterValidEmail", "email.AddressDotAtom");
addMessage("enterValidEmail", "email.AddressQuotedString");
addMessage("enterValidEmail", "email.AddressInvalidLocalPart");
}
}
return result;
}
private void addMessage(String detail, String summary) {
String detailMsg = bundle.getString(detail);
String summaryMsg = bundle.getString(summary);
messages.add(new FacesMessage(FacesMessage.SEVERITY_ERROR, summaryMsg, detailMsg));
}
private void setOptions(UIComponent component) {
Boolean domainOption = Boolean.valueOf((String) component.getAttributes().get("domain"));
//domain = (domainOption == null) ? true : domainOption.booleanValue();
}
}
With a hostname validator as follows:
@FacesValidator("hostNameValidator")
public class HostnameValidator implements Validator {
private Locale locale;
private ResourceBundle bundle;
private List<FacesMessage> messages;
private boolean checkTld = true;
private boolean allowLocal = false;
private boolean allowDNS = true;
private String tld;
private String[] validTlds = {"ac", "ad", "ae", "aero", "af", "ag", "ai",
"al", "am", "an", "ao", "aq", "ar", "arpa", "as", "asia", "at", "au",
"aw", "ax", "az", "ba", "bb", "bd", "be", "bf", "bg", "bh", "bi", "biz",
"bj", "bm", "bn", "bo", "br", "bs", "bt", "bv", "bw", "by", "bz", "ca",
"cat", "cc", "cd", "cf", "cg", "ch", "ci", "ck", "cl", "cm", "cn", "co",
"com", "coop", "cr", "cu", "cv", "cx", "cy", "cz", "de", "dj", "dk",
"dm", "do", "dz", "ec", "edu", "ee", "eg", "er", "es", "et", "eu", "fi",
"fj", "fk", "fm", "fo", "fr", "ga", "gb", "gd", "ge", "gf", "gg", "gh",
"gi", "gl", "gm", "gn", "gov", "gp", "gq", "gr", "gs", "gt", "gu", "gw",
"gy", "hk", "hm", "hn", "hr", "ht", "hu", "id", "ie", "il", "im", "in",
"info", "int", "io", "iq", "ir", "is", "it", "je", "jm", "jo", "jobs",
"jp", "ke", "kg", "kh", "ki", "km", "kn", "kp", "kr", "kw", "ky", "kz",
"la", "lb", "lc", "li", "lk", "lr", "ls", "lt", "lu", "lv", "ly", "ma",
"mc", "md", "me", "mg", "mh", "mil", "mk", "ml", "mm", "mn", "mo",
"mobi", "mp", "mq", "mr", "ms", "mt", "mu", "museum", "mv", "mw", "mx",
"my", "mz", "na", "name", "nc", "ne", "net", "nf", "ng", "ni", "nl",
"no", "np", "nr", "nu", "nz", "om", "org", "pa", "pe", "pf", "pg", "ph",
"pk", "pl", "pm", "pn", "pr", "pro", "ps", "pt", "pw", "py", "qa", "re",
"ro", "rs", "ru", "rw", "sa", "sb", "sc", "sd", "se", "sg", "sh", "si",
"sj", "sk", "sl", "sm", "sn", "so", "sr", "st", "su", "sv", "sy", "sz",
"tc", "td", "tel", "tf", "tg", "th", "tj", "tk", "tl", "tm", "tn", "to",
"tp", "tr", "travel", "tt", "tv", "tw", "tz", "ua", "ug", "uk", "um",
"us", "uy", "uz", "va", "vc", "ve", "vg", "vi", "vn", "vu", "wf", "ws",
"ye", "yt", "yu", "za", "zm", "zw"};
private Map<String, Map<Integer, Integer>> idnLength;
private void init() {
Map<Integer, Integer> biz = new HashMap<Integer, Integer>();
biz.put(5, 17);
biz.put(11, 15);
biz.put(12, 20);
Map<Integer, Integer> cn = new HashMap<Integer, Integer>();
cn.put(1, 20);
Map<Integer, Integer> com = new HashMap<Integer, Integer>();
com.put(3, 17);
com.put(5, 20);
Map<Integer, Integer> hk = new HashMap<Integer, Integer>();
hk.put(1, 15);
Map<Integer, Integer> info = new HashMap<Integer, Integer>();
info.put(4, 17);
Map<Integer, Integer> kr = new HashMap<Integer, Integer>();
kr.put(1, 17);
Map<Integer, Integer> net = new HashMap<Integer, Integer>();
net.put(3, 17);
net.put(5, 20);
Map<Integer, Integer> org = new HashMap<Integer, Integer>();
org.put(6, 17);
Map<Integer, Integer> tw = new HashMap<Integer, Integer>();
tw.put(1, 20);
Map<Integer, Integer> idn1 = new HashMap<Integer, Integer>();
idn1.put(1, 20);
Map<Integer, Integer> idn2 = new HashMap<Integer, Integer>();
idn2.put(1, 20);
Map<Integer, Integer> idn3 = new HashMap<Integer, Integer>();
idn3.put(1, 20);
Map<Integer, Integer> idn4 = new HashMap<Integer, Integer>();
idn4.put(1, 20);
idnLength = new HashMap<String, Map<Integer, Integer>>();
idnLength.put("BIZ", biz);
idnLength.put("CN", cn);
idnLength.put("COM", com);
idnLength.put("HK", hk);
idnLength.put("INFO", info);
idnLength.put("KR", kr);
idnLength.put("NET", net);
idnLength.put("ORG", org);
idnLength.put("TW", tw);
idnLength.put("?????", idn1);
idnLength.put("??", idn2);
idnLength.put("??", idn3);
idnLength.put("??", idn4);
messages = new ArrayList<FacesMessage>();
}
public HostnameValidator() {
init();
}
@Override
public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {
String hostName = (String) value;
locale = context.getViewRoot().getLocale();
bundle = ResourceBundle.getBundle("com.myapp.resources.validationMessages", locale);
Pattern ipPattern = Pattern.compile("^[0-9a-f:\\.]*$", Pattern.CASE_INSENSITIVE);
Matcher ipMatcher = ipPattern.matcher(hostName);
if (ipMatcher.find()) {
addMessage("hostname.IpAddressNotAllowed");
throw new ValidatorException(messages);
}
boolean result = false;
// removes last dot (.) from hostname
hostName = hostName.replaceAll("(\\.)+$", "");
String[] domainParts = hostName.split("\\.");
boolean status = false;
// Check input against DNS hostname schema
if ((domainParts.length > 1) && (hostName.length() > 4) && (hostName.length() < 255)) {
status = false;
dowhile:
do {
// First check TLD
int lastIndex = domainParts.length - 1;
String domainEnding = domainParts[lastIndex];
Pattern tldRegex = Pattern.compile("([^.]{2,10})", Pattern.CASE_INSENSITIVE);
Matcher tldMatcher = tldRegex.matcher(domainEnding);
if (tldMatcher.find() || domainEnding.equals("?????")
|| domainEnding.equals("??")
|| domainEnding.equals("??")
|| domainEnding.equals("??")) {
// Hostname characters are: *(label dot)(label dot label); max 254 chars
// label: id-prefix [*ldh{61} id-prefix]; max 63 chars
// id-prefix: alpha / digit
// ldh: alpha / digit / dash
// Match TLD against known list
tld = (String) tldMatcher.group(1).toLowerCase().trim();
if (checkTld == true) {
boolean foundTld = false;
for (int i = 0; i < validTlds.length; i++) {
if (tld.equals(validTlds[i])) {
foundTld = true;
}
}
if (foundTld == false) {
status = false;
addMessage("hostname.UnknownTld");
break dowhile;
}
}
/**
* Match against IDN hostnames
* Note: Keep label regex short to avoid issues with long patterns when matching IDN hostnames
*/
List<String> regexChars = getIdnRegexChars();
// Check each hostname part
int check = 0;
for (String domainPart : domainParts) {
// Decode Punycode domainnames to IDN
if (domainPart.indexOf("xn--") == 0) {
domainPart = decodePunycode(domainPart.substring(4));
}
// Check dash (-) does not start, end or appear in 3rd and 4th positions
if (domainPart.indexOf("-") == 0
|| (domainPart.length() > 2 && domainPart.indexOf("-", 2) == 2 && domainPart.indexOf("-", 3) == 3)
|| (domainPart.indexOf("-") == (domainPart.length() - 1))) {
status = false;
addMessage("hostname.DashCharacter");
break dowhile;
}
// Check each domain part
boolean checked = false;
for (int key = 0; key < regexChars.size(); key++) {
String regexChar = regexChars.get(key);
Pattern regex = Pattern.compile(regexChar);
Matcher regexMatcher = regex.matcher(domainPart);
status = regexMatcher.find();
if (status) {
int length = 63;
if (idnLength.containsKey(tld.toUpperCase())
&& idnLength.get(tld.toUpperCase()).containsKey(key)) {
length = idnLength.get(tld.toUpperCase()).get(key);
}
int utf8Length;
try {
utf8Length = domainPart.getBytes("UTF8").length;
if (utf8Length > length) {
addMessage("hostname.InvalidHostname");
} else {
checked = true;
break;
}
} catch (UnsupportedEncodingException ex) {
Logger.getLogger(HostnameValidator.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
if (checked) {
++check;
}
}
// If one of the labels doesn't match, the hostname is invalid
if (check != domainParts.length) {
status = false;
addMessage("hostname.InvalidHostnameSchema");
}
} else {
// Hostname not long enough
status = false;
addMessage("hostname.UndecipherableTld");
}
} while (false);
if (status == true && allowDNS) {
result = true;
}
} else if (allowDNS == true) {
addMessage("hostname.InvalidHostname");
throw new ValidatorException(messages);
}
// Check input against local network name schema;
Pattern regexLocal = Pattern.compile("^(([a-zA-Z0-9\\x2d]{1,63}\\x2e)*[a-zA-Z0-9\\x2d]{1,63}){1,254}$", Pattern.CASE_INSENSITIVE);
boolean checkLocal = regexLocal.matcher(hostName).find();
if (allowLocal && !status) {
if (checkLocal) {
result = true;
} else {
// If the input does not pass as a local network name, add a message
result = false;
addMessage("hostname.InvalidLocalName");
}
}
// If local network names are not allowed, add a message
if (checkLocal && !allowLocal && !status) {
result = false;
addMessage("hostname.LocalNameNotAllowed");
}
if (result == false) {
throw new ValidatorException(messages);
}
}
private void addMessage(String msg) {
String bundlMsg = bundle.getString(msg);
messages.add(new FacesMessage(FacesMessage.SEVERITY_ERROR, bundlMsg, bundlMsg));
}
/**
* Returns a list of regex patterns for the matched TLD
* @param tld
* @return
*/
private List<String> getIdnRegexChars() {
List<String> regexChars = new ArrayList<String>();
regexChars.add("^[a-z0-9\\x2d]{1,63}$");
Document doc = null;
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
try {
InputStream validIdns = getClass().getClassLoader().getResourceAsStream("com/myapp/resources/validIDNs_1.xml");
DocumentBuilder builder = factory.newDocumentBuilder();
doc = builder.parse(validIdns);
doc.getDocumentElement().normalize();
} catch (SAXException ex) {
Logger.getLogger(HostnameValidator.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(HostnameValidator.class.getName()).log(Level.SEVERE, null, ex);
} catch (ParserConfigurationException ex) {
Logger.getLogger(HostnameValidator.class.getName()).log(Level.SEVERE, null, ex);
}
// prepare XPath
XPath xpath = XPathFactory.newInstance().newXPath();
NodeList nodes = null;
String xpathRoute = "//idn[tld=\'" + tld.toUpperCase() + "\']/pattern/text()";
try {
XPathExpression expr;
expr = xpath.compile(xpathRoute);
Object res = expr.evaluate(doc, XPathConstants.NODESET);
nodes = (NodeList) res;
} catch (XPathExpressionException ex) {
Logger.getLogger(HostnameValidator.class.getName()).log(Level.SEVERE, null, ex);
}
for (int i = 0; i < nodes.getLength(); i++) {
regexChars.add(nodes.item(i).getNodeValue());
}
return regexChars;
}
/**
* Decode Punycode string
* @param encoded
* @return
*/
private String decodePunycode(String encoded) {
Pattern regex = Pattern.compile("([^a-z0-9\\x2d]{1,10})", Pattern.CASE_INSENSITIVE);
Matcher matcher = regex.matcher(encoded);
boolean found = matcher.find();
if (encoded.isEmpty() || found) {
// no punycode encoded string, return as is
addMessage("hostname.CannotDecodePunycode");
throw new ValidatorException(messages);
}
int separator = encoded.lastIndexOf("-");
List<Integer> decoded = new ArrayList<Integer>();
if (separator > 0) {
for (int x = 0; x < separator; ++x) {
decoded.add((int) encoded.charAt(x));
}
} else {
addMessage("hostname.CannotDecodePunycode");
throw new ValidatorException(messages);
}
int lengthd = decoded.size();
int lengthe = encoded.length();
// decoding
boolean init = true;
int base = 72;
int index = 0;
int ch = 0x80;
int indexeStart = (separator == 1) ? (separator + 1) : 0;
for (int indexe = indexeStart; indexe < lengthe; ++lengthd) {
int oldIndex = index;
int pos = 1;
for (int key = 36; true; key += 36) {
int hex = (int) encoded.charAt(indexe++);
int digit = (hex - 48 < 10) ? hex - 22
: ((hex - 65 < 26) ? hex - 65
: ((hex - 97 < 26) ? hex - 97
: 36));
index += digit * pos;
int tag = (key <= base) ? 1 : ((key >= base + 26) ? 26 : (key - base));
if (digit < tag) {
break;
}
pos = (int) (pos * (36 - tag));
}
int delta = (int) (init ? ((index - oldIndex) / 700) : ((index - oldIndex) / 2));
delta += (int) (delta / (lengthd + 1));
int key;
for (key = 0; delta > 910; key += 36) {
delta = (int) (delta / 35);
}
base = (int) (key + 36 * delta / (delta + 38));
init = false;
ch += (int) (index / (lengthd + 1));
index %= (lengthd + 1);
if (lengthd > 0) {
for (int i = lengthd; i > index; i--) {
decoded.set(i, decoded.get(i - 1));
}
}
decoded.set(index++, ch);
}
// convert decoded ucs4 to utf8 string
StringBuilder sb = new StringBuilder();
for (int i = 0; i < decoded.size(); i++) {
int value = decoded.get(i);
if (value < 128) {
sb.append((char) value);
} else if (value < (1 << 11)) {
sb.append((char) (192 + (value >> 6)));
sb.append((char) (128 + (value & 63)));
} else if (value < (1 << 16)) {
sb.append((char) (224 + (value >> 12)));
sb.append((char) (128 + ((value >> 6) & 63)));
sb.append((char) (128 + (value & 63)));
} else if (value < (1 << 21)) {
sb.append((char) (240 + (value >> 18)));
sb.append((char) (128 + ((value >> 12) & 63)));
sb.append((char) (128 + ((value >> 6) & 63)));
sb.append((char) (128 + (value & 63)));
} else {
addMessage("hostname.CannotDecodePunycode");
throw new ValidatorException(messages);
}
}
return sb.toString();
}
/**
* Eliminates empty values from input array
* @param data
* @return
*/
private String[] verifyArray(String[] data) {
List<String> result = new ArrayList<String>();
for (String s : data) {
if (!s.equals("")) {
result.add(s);
}
}
return result.toArray(new String[result.size()]);
}
}
And a validIDNs.xml with regex patterns for the different tlds (too big to include:)
<idnlist>
<idn>
<tld>AC</tld>
<pattern>^[\u002d0-9a-zà-öø-ÿaaaccccddeeeeggghhiijklll?lnnn?oœrrrsssštttuuuuuwyzzž]{1,63}$</pattern>
</idn>
<idn>
<tld>AR</tld>
<pattern>^[\u002d0-9a-zà-ãç-êìíñ-õü]{1,63}$</pattern>
</idn>
<idn>
<tld>AS</tld>
<pattern>/^[\u002d0-9a-zà-öø-ÿaaaccccddeeeeegggghhiiiiijk?llllnnn?oooœrrrsssštttuuuuuuwyzz]{1,63}$</pattern>
</idn>
<idn>
<tld>AT</tld>
<pattern>/^[\u002d0-9a-zà-öø-ÿœšž]{1,63}$</pattern>
</idn>
<idn>
<tld>BIZ</tld>
<pattern>^[\u002d0-9a-zäåæéöøü]{1,63}$</pattern>
<pattern>^[\u002d0-9a-záéíñóúü]{1,63}$</pattern>
<pattern>^[\u002d0-9a-záéíóöúüou]{1,63}$</pattern>
</id>
</idlist>
Dealing with errors in ASP.NET MVC is just a pain in the butt. I tried a whole lot of suggestions on this page and on other questions and sites and nothing works good. One suggestion was to handle errors on web.config inside system.webserver but that just returns blank pages.
My goal when coming up with this solution was to;
Here is my solution.
1.Add the following to system.web section
<system.web>
<customErrors mode="On" redirectMode="ResponseRewrite">
<error statusCode="404" redirect="~/Error/404.aspx" />
<error statusCode="500" redirect="~/Error/500.aspx" />
</customErrors>
<system.web>
The above handles any urls not handled by routes.config and unhandled exceptions especially those encountered on the views. Notice I used aspx not html. This is so I can add a response code on the code behind.
2. Create a folder called Error (or whatever you prefer) at the root of your project and add the two webforms. Below is my 404 page;
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="404.aspx.cs" Inherits="Myapp.Error._404" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title >Page Not found</title>
<link href="<%=ResolveUrl("~/Content/myapp.css")%>" rel="stylesheet" />
</head>
<body>
<div class="top-nav">
<a runat="server" class="company-logo" href="~/"></a>
</div>
<div>
<h1>404 - Page Not found</h1>
<p>The page you are looking for cannot be found.</p>
<hr />
<footer></footer>
</div>
</body>
</html>
And on the code behind I set the response code
protected void Page_Load(object sender, EventArgs e)
{
Response.StatusCode = 404;
}
Do the same for the 500 page
3.To handle errors within the controllers. There's many ways to do it. This is what worked for me. All my controllers inherit from a base controller. In the base controller, I have the following methods
protected ActionResult ShowNotFound()
{
return ShowNotFound("Page not found....");
}
protected ActionResult ShowNotFound(string message)
{
return ShowCustomError(HttpStatusCode.NotFound, message);
}
protected ActionResult ShowServerError()
{
return ShowServerError("Application error....");
}
protected ActionResult ShowServerError(string message)
{
return ShowCustomError(HttpStatusCode.InternalServerError, message);
}
protected ActionResult ShowNotAuthorized()
{
return ShowNotAuthorized("You are not allowed ....");
}
protected ActionResult ShowNotAuthorized(string message)
{
return ShowCustomError(HttpStatusCode.Forbidden, message);
}
protected ActionResult ShowCustomError(HttpStatusCode statusCode, string message)
{
Response.StatusCode = (int)statusCode;
string title = "";
switch (statusCode)
{
case HttpStatusCode.NotFound:
title = "404 - Not found";
break;
case HttpStatusCode.Forbidden:
title = "403 - Access Denied";
break;
default:
title = "500 - Application Error";
break;
}
ViewBag.Title = title;
ViewBag.Message = message;
return View("CustomError");
}
4.Add the CustomError.cshtml to your Shared views folder. Below is mine;
<h1>@ViewBag.Title</h1>
<br />
<p>@ViewBag.Message</p>
Now in your application controller you can do something like this;
public class WidgetsController : ControllerBase
{
[HttpGet]
public ActionResult Edit(int id)
{
Try
{
var widget = db.getWidgetById(id);
if(widget == null)
return ShowNotFound();
//or return ShowNotFound("Invalid widget!");
return View(widget);
}
catch(Exception ex)
{
//log error
logger.Error(ex)
return ShowServerError();
}
}
}
Now for the caveat. It won't handle static file errors. So if you have a route such as example.com/widgets and the user changes it to example.com/widgets.html, they will get the IIS default error page so you have to handle IIS level errors some other way.
Soviut's advice for lxml objectify is good. With a specially subclassed simplejson, you can turn an lxml objectify result into json.
import simplejson as json
import lxml
class objectJSONEncoder(json.JSONEncoder):
"""A specialized JSON encoder that can handle simple lxml objectify types
>>> from lxml import objectify
>>> obj = objectify.fromstring("<Book><price>1.50</price><author>W. Shakespeare</author></Book>")
>>> objectJSONEncoder().encode(obj)
'{"price": 1.5, "author": "W. Shakespeare"}'
"""
def default(self,o):
if isinstance(o, lxml.objectify.IntElement):
return int(o)
if isinstance(o, lxml.objectify.NumberElement) or isinstance(o, lxml.objectify.FloatElement):
return float(o)
if isinstance(o, lxml.objectify.ObjectifiedDataElement):
return str(o)
if hasattr(o, '__dict__'):
#For objects with a __dict__, return the encoding of the __dict__
return o.__dict__
return json.JSONEncoder.default(self, o)
See the docstring for example of usage, essentially you pass the result of lxml objectify
to the encode method of an instance of objectJSONEncoder
Note that Koen's point is very valid here, the solution above only works for simply nested xml and doesn't include the name of root elements. This could be fixed.
I've included this class in a gist here: http://gist.github.com/345559
You can simplify this code to:
DirectorySearcher searcher = new DirectorySearcher();
searcher.Filter = "(&(objectCategory=user)(cn=steve.evans))";
SearchResultCollection results = searcher.FindAll();
if (results.Count == 1)
{
//do what you want to do
}
else if (results.Count == 0)
{
//user does not exist
}
else
{
//found more than one user
//something is wrong
}
If you can narrow down where the user is you can set searcher.SearchRoot to a specific OU that you know the user is under.
You should also use objectCategory instead of objectClass since objectCategory is indexed by default.
You should also consider searching on an attribute other than CN. For example it might make more sense to search on the username (sAMAccountName) since it's guaranteed to be unique.
I know this question is pretty old now, but I thought you might have an easier time with ElementTree
from xml.etree import ElementTree as ET
import datetime
f = ET.XML(data)
for element in f:
if element.tag == "currentTime":
# Handle time data was pulled
currentTime = datetime.datetime.strptime(element.text, "%Y-%m-%d %H:%M:%S")
if element.tag == "cachedUntil":
# Handle time until next allowed update
cachedUntil = datetime.datetime.strptime(element.text, "%Y-%m-%d %H:%M:%S")
if element.tag == "result":
# Process list of skills
pass
I know that's not super specific, but I just discovered it, and so far it's a lot easier to get my head around than the minidom (since so many nodes are essentially white space).
For instance, you have the tag name and the actual text together, just as you'd probably expect:
>>> element[0]
<Element currentTime at 40984d0>
>>> element[0].tag
'currentTime'
>>> element[0].text
'2010-04-12 02:45:45'e
During an object's de-serialization, the class responsible for de-serializing an object creates an instance of the serialized class and then proceeds to populate the serialized fields and properties only after acquiring an instance to populate.
You can make your constructor private
or internal
if you want, just so long as it's parameterless.
Delete web.config file and insert again. http://forums.asp.net/post/916808.aspx
Maybe encode them into a known set - something like base 64 is a popular choice.
One way would be to make a List
of Thread
s, create and launch each thread, while adding it to the list. Once everything is launched, loop back through the list and call join()
on each one. It doesn't matter what order the threads finish executing in, all you need to know is that by the time that second loop finishes executing, every thread will have completed.
A better approach is to use an ExecutorService and its associated methods:
List<Callable> callables = ... // assemble list of Callables here
// Like Runnable but can return a value
ExecutorService execSvc = Executors.newCachedThreadPool();
List<Future<?>> results = execSvc.invokeAll(callables);
// Note: You may not care about the return values, in which case don't
// bother saving them
Using an ExecutorService (and all of the new stuff from Java 5's concurrency utilities) is incredibly flexible, and the above example barely even scratches the surface.
I am surprised that the connection string works for you, because it is missing a semi-colon. Set is only used with objects, so you would not say Set strNaam.
Set cn = CreateObject("ADODB.Connection")
With cn
.Provider = "Microsoft.Jet.OLEDB.4.0"
.ConnectionString = "Data Source=D:\test.xls " & _
";Extended Properties=""Excel 8.0;HDR=Yes;"""
.Open
End With
strQuery = "SELECT * FROM [Sheet1$E36:E38]"
Set rs = cn.Execute(strQuery)
Do While Not rs.EOF
For i = 0 To rs.Fields.Count - 1
Debug.Print rs.Fields(i).Name, rs.Fields(i).Value
strNaam = rs.Fields(0).Value
Next
rs.MoveNext
Loop
rs.Close
There are other ways, depending on what you want to do, such as GetString (GetString Method Description).
In python the with
keyword is used when working with unmanaged resources (like file streams). It is similar to the using
statement in VB.NET and C#. It allows you to ensure that a resource is "cleaned up" when the code that uses it finishes running, even if exceptions are thrown. It provides 'syntactic sugar' for try/finally
blocks.
From Python Docs:
The
with
statement clarifies code that previously would usetry...finally
blocks to ensure that clean-up code is executed. In this section, I’ll discuss the statement as it will commonly be used. In the next section, I’ll examine the implementation details and show how to write objects for use with this statement.The
with
statement is a control-flow structure whose basic structure is:with expression [as variable]: with-block
The expression is evaluated, and it should result in an object that supports the context management protocol (that is, has
__enter__()
and__exit__()
methods).
Update fixed VB callout per Scott Wisniewski's comment. I was indeed confusing with
with using
.
This problem really cost me some hours.
My system is Ubuntu 14.04, I installed docker by sudo apt-get install docker
, and typed some other commands that caused the problem.
I google "unknown job: docker.io", answers did not take effect.
I looked for reasons of "unknown job" in /etc/init.d/
, found no proper answer .
I looked for way to debug script in /etc/init.d/
, found no proper answer.
Then, I did a clean:
sudo apt-get remove docker.io
find / -name "*docker*"
, such as /etc/init/docker.io.conf
, /etc/init.d/docker.io
.Follow the latest official document: https://docs.docker.com/installation/, there is a lot of outdated documentation which can be misleading.
Finally, it fixed the problem.
Note: If you are in China, because of the GFW, you may need to set the https_proxy to install docker from https://get.docker.com/ .
Update: The site below is no longer running because, as they say on the site:
As of January 1, 2016, no publicly trusted CA is allowed to issue a SHA-1 certificate. In addition, SHA-1 support was removed by most modern browsers and operating systems in early 2017. Any new certificate you get should automatically use a SHA-2 algorithm for its signature.
Legacy clients will continue to accept SHA-1 certificates, and it is possible to have requested a certificate on December 31, 2015 that is valid for 39 months. So, it is possible to see SHA-1 certificates in the wild that expire in early 2019.
You can also use https://shaaaaaaaaaaaaa.com/ - set up to make this particular task easy. The site has a text box - you type in your site domain name, click the Go button and it then tells you whether the site is using SHA1 or SHA2.
Convert the string to a decimal then divide it by 100 and apply the currency format string:
string.Format("{0:#.00}", Convert.ToDecimal(myMoneyString) / 100);
Edited to remove currency symbol as requested and convert to decimal instead.
Just adding to all the fine answers, my version with decoration:
from __future__ import print_function
import six
def classrep(rep):
def decorate(cls):
class RepMetaclass(type):
def __repr__(self):
return rep
class Decorated(six.with_metaclass(RepMetaclass, cls)):
pass
return Decorated
return decorate
@classrep("Wahaha!")
class C(object):
pass
print(C)
stdout:
Wahaha!
The down sides:
C
without a super class (no class C:
)C
instances will be instances of some strange derivation, so it's probably a good idea to add a __repr__
for the instances as well.In JSF I used:
<h:head>
<f:facet name="first">
<meta http-equiv="X-UA-Compatible" content="IE=EDGE" />
</f:facet>
<!-- ... other meta tags ... -->
</h:head>
Here is a simple example, it will help you to get object key name.
var obj ={parts:{costPart:1000, salesPart: 2000}};
console.log(Object.keys(obj));
the output would be parts.
<a href="/home" target="_self">Reload the page</a>
Do dtEmp
on your current working DataTable:
DataTable distinctTable = dtEmp.DefaultView.ToTable( /*distinct*/ true);
It's nice.
Just add a >NUL
at the end of the lines producing the messages.
For example,
COPY %scriptDirectory%test.bat %scriptDirectory%test2.bat >NUL
Just an important note. If you have HTML comment and your uncomment doesn't work
(Maybe it's a PHP file), so don't mark all the comment but just put your cursor at the end or at the beginning of the comment (before ) and try again (Ctrl+/).
It may be worth noting that auto-indent does not work if there are syntax errors in the document. Get rid of the red squigglies, and THEN try CTRL+K, CTRL+D, whatever...
I faced the same problem in the past. If you need more complex lists, consider creating your own parser by inheriting from ConfigParser. Then you would overwrite the get method with that:
def get(self, section, option):
""" Get a parameter
if the returning value is a list, convert string value to a python list"""
value = SafeConfigParser.get(self, section, option)
if (value[0] == "[") and (value[-1] == "]"):
return eval(value)
else:
return value
With this solution you will also be able to define dictionaries in your config file.
But be careful! This is not as safe: this means anyone could run code through your config file. If security is not an issue in your project, I would consider using directly python classes as config files. The following is much more powerful and expendable than a ConfigParser file:
class Section
bar = foo
class Section2
bar2 = baz
class Section3
barList=[ item1, item2 ]
It is very simple using Sass, just use @extend
:
.pull-right-xs {
@extend .pull-right;
}
You can also use the Cast() operation :
Declare @name varchar(100);
set @name='....';
Select Cast(@name as varchar(10)) as new_name
If you used read.table()
(or one of it's ilk, e.g. read.csv()
) then the easy fix is to change the call to:
read.table(file = "foo.txt", row.names = 1, ....)
where ....
are the other arguments you needed/used. The row.names
argument takes the column number of the data file from which to take the row names. It need not be the first column. See ?read.table
for details/info.
If you already have the data in R and can't be bothered to re-read it, or it came from another route, just set the rownames
attribute and remove the first variable from the object (assuming obj
is your object)
rownames(obj) <- obj[, 1] ## set rownames
obj <- obj[, -1] ## remove the first variable
Update for swift 4 for Dashrath answer
import UIKit
import EventKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let eventStore = EKEventStore()
eventStore.requestAccess( to: EKEntityType.event, completion:{(granted, error) in
if (granted) && (error == nil) {
let event = EKEvent(eventStore: eventStore)
event.title = "My Event"
event.startDate = Date(timeIntervalSinceNow: TimeInterval())
event.endDate = Date(timeIntervalSinceNow: TimeInterval())
event.notes = "Yeah!!!"
event.calendar = eventStore.defaultCalendarForNewEvents
var event_id = ""
do{
try eventStore.save(event, span: .thisEvent)
event_id = event.eventIdentifier
}
catch let error as NSError {
print("json error: \(error.localizedDescription)")
}
if(event_id != ""){
print("event added !")
}
}
})
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
If you only need to share data between views/scopes/controllers, the easiest way is to store it in $rootScope. However, if you need a shared function, it is better to define a service to do that.
To get reference to UIViewController having UIView, you could make extension of UIResponder (which is super class for UIView and UIViewController), which allows to go up through the responder chain and thus reaching UIViewController (otherwise returning nil).
extension UIResponder {
func getParentViewController() -> UIViewController? {
if self.nextResponder() is UIViewController {
return self.nextResponder() as? UIViewController
} else {
if self.nextResponder() != nil {
return (self.nextResponder()!).getParentViewController()
}
else {return nil}
}
}
}
//Swift 3
extension UIResponder {
func getParentViewController() -> UIViewController? {
if self.next is UIViewController {
return self.next as? UIViewController
} else {
if self.next != nil {
return (self.next!).getParentViewController()
}
else {return nil}
}
}
}
let vc = UIViewController()
let view = UIView()
vc.view.addSubview(view)
view.getParentViewController() //provide reference to vc
std
namespace (where features of the C++ Standard Library, such as string
or vector
, are declared).After you write this instruction, if the compiler sees string
it will know that you may be referring to std::string
, and if it sees vector
, it will know that you may be referring to std::vector
. (Provided that you have included in your compilation unit the header files where they are defined, of course.)
If you don't write it, when the compiler sees string
or vector
it will not know what you are refering to. You will need to explicitly tell it std::string
or std::vector
, and if you don't, you will get a compile error.
As far as I know, can't you just make it abstract?
class parent {
public:
virtual void handle_event(int something) const = 0 {
// boring default code
}
};
I thought I read on www.parashift.com that you can actually implement an abstract method. Which makes sense to me personally, the only thing it does is force subclasses to implement it, no one said anything about it not being allowed to have an implementation itself.
For anyone else out there wondering how to do this, I have the following solution for SQL Server 2008 R2 and later:
USE master
go
DENY VIEW ANY DATABASE TO [user]
go
This will address exactly the requirement outlined above..
props.children
represents the content between the opening and the closing tags when invoking/rendering a component:
const Foo = props => (
<div>
<p>I'm {Foo.name}</p>
<p>abc is: {props.abc}</p>
<p>I have {props.children.length} children.</p>
<p>They are: {props.children}.</p>
<p>{Array.isArray(props.children) ? 'My kids are an array.' : ''}</p>
</div>
);
const Baz = () => <span>{Baz.name} and</span>;
const Bar = () => <span> {Bar.name}</span>;
invoke/call/render Foo
:
<Foo abc={123}>
<Baz />
<Bar />
</Foo>
Follow the Instructions from the Ruby Installer Developer Kit Wiki:
cd C:\Ruby193\DevKit
ruby dk.rb init
ruby dk.rb review
ruby dk.rb install
To return to the problem at hand, you should be able to install JSON (or otherwise test that your DevKit successfully installed) by running the following commands which will perform an install of the JSON gem and then use it:
gem install json --platform=ruby
ruby -rubygems -e "require 'json'; puts JSON.load('[42]').inspect"
There is a simple way to use custom fonts in iOS 4.
Chalkduster.ttf
) to Resources folder of the project in XCode.info.plist
and add a new key called UIAppFonts
. The type of this key should be array.Chalkduster.ttf
).[UIFont fontWithName:@"Chalkduster" size:16]
in your application.Unfortunately, IB doesn't allow to initialize labels with custom fonts. See this question to solve this problem. My favorite solution is to use custom UILabel
subclass:
@implementation CustomFontLabel
- (id)initWithCoder:(NSCoder *)decoder
{
if (self = [super initWithCoder: decoder])
{
[self setFont: [UIFont fontWithName: @"Chalkduster" size: self.font.pointSize]];
}
return self;
}
@end
First of all get a string from an EDITTEXT and then convert this string into integer like
String no=myTxt.getText().toString(); //this will get a string
int no2=Integer.parseInt(no); //this will get a no from the string
nl2br() worked for me, but I needed to wrap the variable with double quotes:
This works:
$description = nl2br("$description");
This doesn't work:
$description = nl2br($description);
Just for fun (I had some time to kill), a more sophisticated implementation which caches the zero-string:
pad.zeros = new Array(5).join('0');
function pad(num, len) {
var str = String(num),
diff = len - str.length;
if(diff <= 0) return str;
if(diff > pad.zeros.length)
pad.zeros = new Array(diff + 1).join('0');
return pad.zeros.substr(0, diff) + str;
}
If the padding count is large and the function is called often enough, it actually outperforms the other methods...
Don't parse it. Just ask.
import socket
try:
socket.inet_aton(addr)
# legal
except socket.error:
# Not legal
I would recommend using PATCH, because your resource 'group' has many properties but in this case, you are updating only the activation field(partial modification)
according to the RFC5789 (https://tools.ietf.org/html/rfc5789)
The existing HTTP PUT method only allows a complete replacement of a document. This proposal adds a new HTTP method, PATCH, to modify an existing HTTP resource.
Also, in more details,
The difference between the PUT and PATCH requests is reflected in the way the server processes the enclosed entity to modify the resource
identified by the Request-URI. In a PUT request, the enclosed entity is considered to be a modified version of the resource stored on the
origin server, and the client is requesting that the stored version
be replaced. With PATCH, however, the enclosed entity contains a set of instructions describing how a resource currently residing on the
origin server should be modified to produce a new version. The PATCH method affects the resource identified by the Request-URI, and it
also MAY have side effects on other resources; i.e., new resources
may be created, or existing ones modified, by the application of a
PATCH.PATCH is neither safe nor idempotent as defined by [RFC2616], Section 9.1.
Clients need to choose when to use PATCH rather than PUT. For
example, if the patch document size is larger than the size of the
new resource data that would be used in a PUT, then it might make
sense to use PUT instead of PATCH. A comparison to POST is even more difficult, because POST is used in widely varying ways and can
encompass PUT and PATCH-like operations if the server chooses. If
the operation does not modify the resource identified by the Request- URI in a predictable way, POST should be considered instead of PATCH
or PUT.
The response code for PATCH is
The 204 response code is used because the response does not carry a message body (which a response with the 200 code would have). Note that other success codes could be used as well.
also refer thttp://restcookbook.com/HTTP%20Methods/patch/
Caveat: An API implementing PATCH must patch atomically. It MUST not be possible that resources are half-patched when requested by a GET.
The existing solutions all offer either one or the other of:
But so far no solution has both. If you want both, try this:
s = set(temp2)
temp3 = [x for x in temp1 if x not in s]
Performance test
import timeit
init = 'temp1 = list(range(100)); temp2 = [i * 2 for i in range(50)]'
print timeit.timeit('list(set(temp1) - set(temp2))', init, number = 100000)
print timeit.timeit('s = set(temp2);[x for x in temp1 if x not in s]', init, number = 100000)
print timeit.timeit('[item for item in temp1 if item not in temp2]', init, number = 100000)
Results:
4.34620224079 # ars' answer
4.2770634955 # This answer
30.7715615392 # matt b's answer
The method I presented as well as preserving order is also (slightly) faster than the set subtraction because it doesn't require construction of an unnecessary set. The performance difference would be more noticable if the first list is considerably longer than the second and if hashing is expensive. Here's a second test demonstrating this:
init = '''
temp1 = [str(i) for i in range(100000)]
temp2 = [str(i * 2) for i in range(50)]
'''
Results:
11.3836875916 # ars' answer
3.63890368748 # this answer (3 times faster!)
37.7445402279 # matt b's answer
SWIFT 4
This could take your app's specific settings, if that's what you're looking for.
UIApplication.shared.openURL(URL(string: UIApplicationOpenSettingsURLString)!)
try sorting list , char have the ascii code, the same can be used for sorting the list of char.
aw=[1,2,2,1,1,3,5,342,345,56,2,35,436,6,576,54,76,47,658,8758,87,878]
for i in range(aw.__len__()):
for j in range(aw.__len__()):
if aw[i] < aw[j] :aw[i],aw[j]=aw[j],aw[i]
private void PictureBox1_Click(object sender, EventArgs e)
{
MessageBox.Show("Click Succes");
}
private void TextBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == 13)
{
PictureBox1_Click(sender, e); //or try this one "this.PictureBox1_Click(sender, AcceptButton);"
}
}
To avoid the compilation error I used
let name1:string = person.name || '';
And then validate the empty string.
Main difference between JPA and JDBC is level of abstraction.
JDBC is a low level standard for interaction with databases. JPA is higher level standard for the same purpose. JPA allows you to use an object model in your application which can make your life much easier. JDBC allows you to do more things with the Database directly, but it requires more attention. Some tasks can not be solved efficiently using JPA, but may be solved more efficiently with JDBC.
Move
Random pp = new Random();
int a1 = pp.nextInt(10);
TextView tv = (TextView)findViewById(R.id.tv);
tv.setText(a1);
To inside onCreate()
, and change tv.setText(a1);
to tv.setText(String.valueOf(a1));
:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Random pp = new Random();
int a1 = pp.nextInt(10);
TextView tv = (TextView)findViewById(R.id.tv);
tv.setText(String.valueOf(a1));
}
First issue: findViewById()
was called before onCreate()
, which would throw an NPE.
Second issue: Passing an int directly to a TextView calls the overloaded method that looks for a String resource (from R.string
). Therefore, we want to use String.valueOf()
to force the String
overloaded method.
Started from the idea/comment Charles Duffy - Dec 17 '14 at 5:32 on the topic Get current directory name (without full path) in a Bash script
#!/bin/bash
#INFO : https://stackoverflow.com/questions/1371261/get-current-directory-name-without-full-path-in-a-bash-script
# comment : by Charles Duffy - Dec 17 '14 at 5:32
# at the beginning :
declare -a dirName[]
function getDirNames(){
dirNr="$( IFS=/ read -r -a dirs <<<"${dirTree}"; printf '%s\n' "$((${#dirs[@]} - 1))" )"
for(( cnt=0 ; cnt < ${dirNr} ; cnt++))
do
dirName[$cnt]="$( IFS=/ read -r -a dirs <<<"$PWD"; printf '%s\n' "${dirs[${#dirs[@]} - $(( $cnt+1))]}" )"
#information – feedback
echo "$cnt : ${dirName[$cnt]}"
done
}
dirTree=$PWD;
getDirNames;
You can try overflow
css property.
The best way to solve this issue is using the formula to calculate a slope:
(y1-y2/x1-x2)
*define x1 as the first moment, so value will be "C4=1" define x2 as the first moment, so value will be "C5=2"
In order to get the correct percentage growth we can follow this order:
=(((B4-B5)/(C4-C5))/ABS(B4))*100
Perfectly Works!
I know this is old, BUT for anyone else looking:
Remove https:// from the hostname and add port 443 instead.
{
method: 'POST',
hostname: 'api.dropbox.com',
port: 443
}
You can use a css selector combination a well
driver.find_element_by_css_selector("#fruits01 [value='1']").click()
Change the 1 in the attribute = value css selector to the value corresponding with the desired fruit.
Another way to do it is to use np.prod
shown below:
def factorial(n):
if n == 0:
return 1
else:
return np.prod(np.arange(1,n+1))
C++ solution found here (http://www.cplusplus.com/forum/unices/16430/)
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
void ouch(int sig)
{
printf("OUCH! - I got signal %d\n", sig);
}
int main()
{
struct sigaction act;
act.sa_handler = ouch;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
sigaction(SIGINT, &act, 0);
while(1) {
printf("Hello World!\n");
sleep(1);
}
}
The following will list the methods that the User class has that the base Object class does not have...
>> User.methods - Object.methods
=> ["field_types", "maximum", "create!", "active_connections", "to_dropdown",
"content_columns", "su_pw?", "default_timezone", "encode_quoted_value",
"reloadable?", "update", "reset_sequence_name", "default_timezone=",
"validate_find_options", "find_on_conditions_without_deprecation",
"validates_size_of", "execute_simple_calculation", "attr_protected",
"reflections", "table_name_prefix", ...
Note that methods
is a method for Classes and for Class instances.
Here's the methods that my User class has that are not in the ActiveRecord base class:
>> User.methods - ActiveRecord::Base.methods
=> ["field_types", "su_pw?", "set_login_attr", "create_user_and_conf_user",
"original_table_name", "field_type", "authenticate", "set_default_order",
"id_name?", "id_name_column", "original_locking_column", "default_order",
"subclass_associations", ...
# I ran the statements in the console.
Note that the methods created as a result of the (many) has_many relationships defined in the User class are not in the results of the methods
call.
Added Note that :has_many does not add methods directly. Instead, the ActiveRecord machinery uses the Ruby method_missing
and responds_to
techniques to handle method calls on the fly. As a result, the methods are not listed in the methods
method result.
The word "read" is vague, but here is an example which reads a jpeg file using the Image class, and prints information about it.
from PIL import Image
jpgfile = Image.open("picture.jpg")
print(jpgfile.bits, jpgfile.size, jpgfile.format)
I was facing exact same error
Computed property "callRingtatus" was assigned to but it has no setter
here is a sample code according to my scenario
computed: {
callRingtatus(){
return this.$store.getters['chat/callState']===2
}
}
I change the above code into the following way
computed: {
callRingtatus(){
return this.$store.state.chat.callState===2
}
}
fetch values from vuex store state instead of getters inside the computed hook
Add hamcrest-all-X.X.jar
to your classpath.
Latest version as of Feb 2015 is 1.3: http://code.google.com/p/hamcrest/downloads/detail?name=hamcrest-all-1.3.jar&can=2&q=
Basically, all you have to do is
select ..., (select ... from ... where ...) as ..., ..., from ... where ...
For exemple. You can insert the (select ... from ... where) wherever you want it will be replaced by the corresponding data.
I know that the others exemple (even if each of them are really great :) ) are a bit complicated to understand for the newbies (like me :p) so i hope this "simple" exemple will help some of you guys :)
Since C++11, you can also use a lambda expression instead of defining a comparator struct:
auto comp = [](const string& a, const string& b) { return a.length() < b.length(); };
map<string, string, decltype(comp)> my_map(comp);
my_map["1"] = "a";
my_map["three"] = "b";
my_map["two"] = "c";
my_map["fouuur"] = "d";
for(auto const &kv : my_map)
cout << kv.first << endl;
Output:
1
two
three
fouuur
I'd like to repeat the final note of Georg's answer: When comparing by length you can only have one string of each length in the map as a key.
You can just use np.savetxt
and access the np attribute .values
:
np.savetxt(r'c:\data\np.txt', df.values, fmt='%d')
yields:
18 55 1 70
18 55 2 67
18 57 2 75
18 58 1 35
19 54 2 70
or to_csv
:
df.to_csv(r'c:\data\pandas.txt', header=None, index=None, sep=' ', mode='a')
Note for np.savetxt
you'd have to pass a filehandle that has been created with append mode.
If you need to use the vector over and over again and your current code declares it repeatedly within your loop or on every function call, it is likely that you will run out of memory. I suggest that you declare it outside, pass them as pointers in your functions and use:
my_arr.resize()
This way, you keep using the same memory sequence for your vectors instead of requesting for new sequences every time. Hope this helped. Note: resizing it to different sizes may add random values. Pass an integer such as 0 to initialise them, if required.
Remove the starting slash ('\') in the second parameter (path2) of Path.Combine.
Got a solution to above problem in a different way where in although i would read entire csv file, but would tweek the display part to show only the content which is desired.
import pandas as pd
df = pd.read_csv('data.csv', skipinitialspace=True)
print df[['star_name', 'ra']]
This one could help in some of the scenario's in learning basics and filtering data on the basis of columns in dataframe.
As dan_nl stated, you can add a private fake repository in package.json. You don't even need name and version for it:
{
...,
"repository": {
"private": true
}
}
Update: This feature is undocumented and might not work. Choose the following option.
Better still: Set the private
flag directly. This way npm doesn't ask for a README file either:
{
"name": ...,
"description": ...,
"version": ...,
"private": true
}
=IF(ISNA(INDEX(B:B,MATCH(C2,A:A,0))),"",INDEX(B:B,MATCH(C2,A:A,0)))
Will return the answer you want and also remove the #N/A
result that would appear if you couldn't find a result due to it not appearing in your lookup list.
Ross
This is all you have to do:
In front.inc
global $name;
$name = 'james';
I would say that it depends on what you want to do.
If your dropdown is a component for a form that manages a state, I would leverage the two-way binding of Angular2. For this, I would use two attributes: an input one to get the associated object and an output one to notify when the state changes.
Here is a sample:
export class DropdownValue {
value:string;
label:string;
constructor(value:string,label:string) {
this.value = value;
this.label = label;
}
}
@Component({
selector: 'dropdown',
template: `
<ul>
<li *ngFor="let value of values" (click)="select(value.value)">{{value.label}}</li>
</ul>
`
})
export class DropdownComponent {
@Input()
values: DropdownValue[];
@Input()
value: string[];
@Output()
valueChange: EventEmitter;
constructor(private elementRef:ElementRef) {
this.valueChange = new EventEmitter();
}
select(value) {
this.valueChange.emit(value);
}
}
This allows you to use it this way:
<dropdown [values]="dropdownValues" [(value)]="value"></dropdown>
You can build your dropdown within the component, apply styles and manage selections internally.
Edit
You can notice that you can either simply leverage a custom event in your component to trigger the selection of a dropdown. So the component would now be something like this:
export class DropdownValue {
value:string;
label:string;
constructor(value:string,label:string) {
this.value = value;
this.label = label;
}
}
@Component({
selector: 'dropdown',
template: `
<ul>
<li *ngFor="let value of values" (click)="selectItem(value.value)">{{value.label}}</li>
</ul>
`
})
export class DropdownComponent {
@Input()
values: DropdownValue[];
@Output()
select: EventEmitter;
constructor() {
this.select = new EventEmitter();
}
selectItem(value) {
this.select.emit(value);
}
}
Then you can use the component like this:
<dropdown [values]="dropdownValues" (select)="action($event.value)"></dropdown>
Notice that the action
method is the one of the parent component (not the dropdown one).
In your doSomething()
function, pass in the event e
and use e.preventDefault()
.
doSomething = function (e) {
alert('it works!');
e.preventDefault();
}
NSLocale* currentLocale = [NSLocale currentLocale];
[[NSDate date] descriptionWithLocale:currentLocale];
or use
NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
// or @"yyyy-MM-dd hh:mm:ss a" if you prefer the time with AM/PM
NSLog(@"%@",[dateFormatter stringFromDate:[NSDate date]]);
The way a cherry-pick works is by taking the diff a changeset represents (the difference between the working tree at that point and the working tree of its parent), and applying it to your current branch.
So, if a commit has two or more parents, it also represents two or more diffs - which one should be applied?
You're trying to cherry pick fd9f578
, which was a merge with two parents. So you need to tell the cherry-pick command which one against which the diff should be calculated, by using the -m
option. For example, git cherry-pick -m 1 fd9f578
to use parent 1 as the base.
I can't say for sure for your particular situation, but using git merge
instead of git cherry-pick
is generally advisable. When you cherry-pick a merge commit, it collapses all the changes made in the parent you didn't specify to -m
into that one commit. You lose all their history, and glom together all their diffs. Your call.
If you can't change the datatype on the table itself to use varchar(max), then change your query to this:
SELECT *
FROM [Village]
WHERE CONVERT(VARCHAR(MAX), [CastleType]) = 'foo'
This might help:
CSS
.slick-counter{
position:absolute;
top:5px;
left:5px;
background:yellow;
padding:5px;
opacity:0.8;
border-radius:5px;
}
JavaScript
var $el = $('.slideshow');
$el.slick({
slide: 'img',
autoplay: true,
onInit: function(e){
$el.append('<div class="slick-counter">'+ parseInt(e.currentSlide + 1, 10) +' / '+ e.slideCount +'</div>');
},
onAfterChange: function(e){
$el.find('.slick-counter').html(e.currentSlide + 1 +' / '+e.slideCount);
}
});
Backout restores or undoes our changes. The way it does this is that, P4 undoes the changes in a changelist (default or new) on our local workspace. We then have to submit/commit this backedout changelist as we do other changeslists. The second part is important here, as it doesn't automatically backout the changelist on the server, we have to submit the backedout changelist (which makes sense after you do it, but i was initially assuming it does that automatically).
As pointed by others, Rollback has greater powers - It can restore changes to a specific date, changelist or a revision#
This is not perfect methods. You have to implement same way which is display here.
You can also call the image under the folder through the code you can use
Resources res = getResources();
Drawable shape = res. getDrawable(R.drawable.gradient_box);
TextView tv = (TextView)findViewByID(R.id.textview);
tv.setBackground(shape);
I think things would be easier if you code your success
function to load the appropriate page instead of returning true
or false
.
For example instead of returning true
you could do:
window.location="appropriate page";
That way when the success function is called the page gets redirected.
If you have added multiple (Third-Party)**libraries and Extends **Application class
Then it might occur.
For that, you have to set multiDexEnabled true
and replace your extended Application
class with MultiDexApplication
.
It will be solved.
My problem was caused by the exact opposite of @ehacinom. My Laravel generated API didn't like the trailing '/' on POST requests. Worked fine on localhost but didn't work when uploaded to server.
Add a CommandName attribute, and optionally a CommandArgument attribute, to your LinkButton control. Then set the OnCommand attribute to the name of your Command event handler.
<asp:LinkButton ID="ENameLinkBtn" runat="server" CommandName="MyValueGoesHere" CommandArgument="OtherValueHere"
style="font-weight: 700; font-size: 8pt;" OnCommand="ENameLinkBtn_Command" ><%# Eval("EName") %></asp:LinkButton>
<asp:Label id="Label1" runat="server"/>
Then it will be available when in your handler:
protected void ENameLinkBtn_Command (object sender, CommandEventArgs e)
{
Label1.Text = "You chose: " + e.CommandName + " Item " + e.CommandArgument;
}
More info on MSDN
Seems you haven't installed the Curl on your server.
Check the PHP version of your server and run the following command to install the curl.
sudo apt-get install php7.2-curl
Then restart the apache service by using the following command.
sudo service apache2 restart
Replace 7.2 with your PHP version.
Problem occured for me only when:
I created the Adapter with an empty list.
Then I inserted items and called notifyItemRangeInserted
.
Solution:
I solved this by creating the Adapter only after I have the first chunk of data and initialzing it with it right away. The next chunk could then be inserted and notifyItemRangeInserted
called with no problem .
In addition to all of the great answers, there is a concept called lazy loading:
Lazy loading is a design pattern commonly used in computer programming to defer initialization of an object until the point at which it is needed.
Using it properly, you can reduce the loading time of your application. And Kotlin way of it's implementation is by lazy()
which loads the needed value to your variable whenever it's needed.
But lateinit is used when you are sure a variable won't be null or empty and will be initialized before you use it -e.g. in onResume()
method for android- and so you don't want to declare it as a nullable type.
The most important difference to be aware of is that with a stream opened in text mode you get newline translation on non-*nix systems (it's also used for network communications, but this isn't supported by the standard library). In *nix newline is just ASCII linefeed, \n
, both for internal and external representation of text. In Windows the external representation often uses a carriage return + linefeed pair, "CRLF" (ASCII codes 13 and 10), which is converted to a single \n
on input, and conversely on output.
From the C99 standard (the N869 draft document), §7.19.2/2,
A text stream is an ordered sequence of characters composed into lines, each line consisting of zero or more characters plus a terminating new-line character. Whether the last line requires a terminating new-line character is implementation-defined. Characters may have to be added, altered, or deleted on input and output to conform to differing conventions for representing text in the host environment. Thus, there need not be a one- to-one correspondence between the characters in a stream and those in the external representation. Data read in from a text stream will necessarily compare equal to the data that were earlier written out to that stream only if: the data consist only of printing characters and the control characters horizontal tab and new-line; no new-line character is immediately preceded by space characters; and the last character is a new-line character. Whether space characters that are written out immediately before a new-line character appear when read in is implementation-defined.
And in §7.19.3/2
Binary files are not truncated, except as defined in 7.19.5.3. Whether a write on a text stream causes the associated file to be truncated beyond that point is implementation- defined.
About use of fseek
, in §7.19.9.2/4:
For a text stream, either
offset
shall be zero, oroffset
shall be a value returned by an earlier successful call to theftell
function on a stream associated with the same file andwhence
shall beSEEK_SET
.
About use of ftell
, in §17.19.9.4:
The
ftell
function obtains the current value of the file position indicator for the stream pointed to bystream
. For a binary stream, the value is the number of characters from the beginning of the file. For a text stream, its file position indicator contains unspecified information, usable by thefseek
function for returning the file position indicator for the stream to its position at the time of theftell
call; the difference between two such return values is not necessarily a meaningful measure of the number of characters written or read.
I think that’s the most important, but there are some more details.
This very annoying error so what I did: Under Windows:
Edit system environment variables - > Edit Variables -> New
then fill
MAVEN_OPTS
-Xms512m -Xmx2048m -XX:MaxPermSize=512m
Then restart the console and run the maven build again. No more Maven space/perm size problems.
I've tried all of above solutions, all failed.
I ended up with using -h 127.0.0.1
instead of using default var/run/mysqld/mysqld.sock
.
Java has always got inadequate support for the date and time use cases. For example, the existing classes (such as java.util.Date
and SimpleDateFormatter
) aren’t thread-safe which can lead to concurrency issues. Also there are certain flaws in API. For example, years in java.util.Date
start at 1900, months start at 1, and days start at 0—not very intuitive. These issues led to popularity of third-party date and time libraries, such as Joda-Time
. To address a new date and time API is designed for Java SE 8.
LocalDateTime timePoint = LocalDateTime.now();
System.out.println(timePoint);
As per doc:
The method
now()
returns the current date-time using the system clock and default time-zone, not null. It obtains the current date-time from the system clock in the default time-zone. This will query the system clock in the default time-zone to obtain the current date-time. Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.
Code to check whether two elements exist in array whose product equals k:
n = len(arr1)
for i in arr1:
if k%i==0:
print(i)
As explained in other answers, context
is the this
context to be used inside callback passed to each
.
I'll explain this with the help of source code of relevant methods from underscore source code
The definition of _.each
or _.forEach
is as follows:
_.each = _.forEach = function(obj, iteratee, context) {
iteratee = optimizeCb(iteratee, context);
var i, length;
if (isArrayLike(obj)) {
for (i = 0, length = obj.length; i < length; i++) {
iteratee(obj[i], i, obj);
}
} else {
var keys = _.keys(obj);
for (i = 0, length = keys.length; i < length; i++) {
iteratee(obj[keys[i]], keys[i], obj);
}
}
return obj;
};
Second statement is important to note here
iteratee = optimizeCb(iteratee, context);
Here, context
is passed to another method optimizeCb
and the returned function from it is then assigned to iteratee
which is called later.
var optimizeCb = function(func, context, argCount) {
if (context === void 0) return func;
switch (argCount == null ? 3 : argCount) {
case 1:
return function(value) {
return func.call(context, value);
};
case 2:
return function(value, other) {
return func.call(context, value, other);
};
case 3:
return function(value, index, collection) {
return func.call(context, value, index, collection);
};
case 4:
return function(accumulator, value, index, collection) {
return func.call(context, accumulator, value, index, collection);
};
}
return function() {
return func.apply(context, arguments);
};
};
As can be seen from the above method definition of optimizeCb
, if context
is not passed then func
is returned as it is. If context
is passed, callback function is called as
func.call(context, other_parameters);
^^^^^^^
func
is called with call()
which is used to invoke a method by setting this
context of it. So, when this
is used inside func
, it'll refer to context
.
// Without `context`_x000D_
_.each([1], function() {_x000D_
console.log(this instanceof Window);_x000D_
});_x000D_
_x000D_
_x000D_
// With `context` as `arr`_x000D_
var arr = [1, 2, 3];_x000D_
_.each([1], function() {_x000D_
console.log(this);_x000D_
}, arr);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
_x000D_
You can consider context
as the last optional parameter to forEach
in JavaScript.
Your question is: are these not modules capable of declaring variables at global scope?
Answer: YES, they are "capable"
The only point is that references to global variables in ThisWorkbook or a Sheet module have to be fully qualified (i.e., referred to as ThisWorkbook.Global1
, e.g.)
References to global variables in a standard module have to be fully qualified only in case of ambiguity (e.g., if there is more than one standard module defining a variable with name Global1, and you mean to use it in a third module).
For instance, place in Sheet1 code
Public glob_sh1 As String
Sub test_sh1()
Debug.Print (glob_mod)
Debug.Print (ThisWorkbook.glob_this)
Debug.Print (Sheet1.glob_sh1)
End Sub
place in ThisWorkbook code
Public glob_this As String
Sub test_this()
Debug.Print (glob_mod)
Debug.Print (ThisWorkbook.glob_this)
Debug.Print (Sheet1.glob_sh1)
End Sub
and in a Standard Module code
Public glob_mod As String
Sub test_mod()
glob_mod = "glob_mod"
ThisWorkbook.glob_this = "glob_this"
Sheet1.glob_sh1 = "glob_sh1"
Debug.Print (glob_mod)
Debug.Print (ThisWorkbook.glob_this)
Debug.Print (Sheet1.glob_sh1)
End Sub
All three subs work fine.
PS1: This answer is based essentially on info from here. It is much worth reading (from the great Chip Pearson).
PS2: Your line Debug.Print ("Hello")
will give you the compile error Invalid outside procedure
.
PS3: You could (partly) check your code with Debug -> Compile VBAProject in the VB editor. All compile errors will pop.
PS4: Check also Put Excel-VBA code in module or sheet?.
PS5: You might be not able to declare a global variable in, say, Sheet1, and use it in code from other workbook (reading http://msdn.microsoft.com/en-us/library/office/gg264241%28v=office.15%29.aspx#sectionSection0; I did not test this point, so this issue is yet to be confirmed as such). But you do not mean to do that in your example, anyway.
PS6: There are several cases that lead to ambiguity in case of not fully qualifying global variables. You may tinker a little to find them. They are compile errors.
To expand on Ross Allen's answer, here is a slightly cleaner variant using ES6 arrow syntax.
{this.props.titles.map(title =>
<th key={title}>{title}</th>
)}
It has the advantage that the JSX part is isolated (no return
or ;
), making it easier to put a loop around it.
You can actually chain multiple $lookup stages. Based on the names of the collections shared by profesor79, you can do this :
db.sivaUserInfo.aggregate([
{
$lookup: {
from: "sivaUserRole",
localField: "userId",
foreignField: "userId",
as: "userRole"
}
},
{
$unwind: "$userRole"
},
{
$lookup: {
from: "sivaUserInfo",
localField: "userId",
foreignField: "userId",
as: "userInfo"
}
},
{
$unwind: "$userInfo"
}
])
This will return the following structure :
{
"_id" : ObjectId("56d82612b63f1c31cf906003"),
"userId" : "AD",
"phone" : "0000000000",
"userRole" : {
"_id" : ObjectId("56d82612b63f1c31cf906003"),
"userId" : "AD",
"role" : "admin"
},
"userInfo" : {
"_id" : ObjectId("56d82612b63f1c31cf906003"),
"userId" : "AD",
"phone" : "0000000000"
}
}
Maybe this could be considered an anti-pattern because MongoDB wasn't meant to be relational but it is useful.
-- html file --
<select name='city[]'>
<option name='Kabul' value="Kabul" > Kabul </option>
<option name='Herat' value='Herat' selected="selected"> Herat </option>
<option name='Mazar' value='Mazar'>Mazar </option>
</select>
-- php file --
$city = (isset($_POST['city']) ? $_POST['city']: null);
print("city is: ".$city[0]);
You can use find_package to search for available boost libraries. It defers searching for Boost to FindBoost.cmake, which is default installed with CMake.
Upon finding Boost, the find_package()
call will have filled many variables (check the reference for FindBoost.cmake). Among these are BOOST_INCLUDE_DIRS
, Boost_LIBRARIES and Boost_XXX_LIBRARY variabels, with XXX replaced with specific Boost libraries. You can use these to specify include_directories and target_link_libraries.
For example, suppose you would need boost::program_options and boost::regex, you would do something like:
find_package( Boost REQUIRED COMPONENTS program_options regex )
include_directories( ${Boost_INCLUDE_DIRS} )
add_executable( run main.cpp ) # Example application based on main.cpp
# Alternatively you could use ${Boost_LIBRARIES} here.
target_link_libraries( run ${Boost_PROGRAM_OPTIONS_LIBRARY} ${Boost_REGEX_LIBRARY} )
Some general tips:
On
: Boost_USE_STATIC_LIBS
, Boost_USE_MULTITHREADED
, Boost_USE_STATIC_RUNTIME
add_definitions( -DBOOST_ALL_NO_LIB )
add_definitions( -DBOOST_ALL_DYN_LINK )
Works for WebView but seems to fail on URL.openStream()
. So you need to distinguish file:// protocols and handle them via AssetManager as suggested.
This will retrun you distinct Ids
var distinctIds = datatable.AsEnumerable()
.Select(s=> new {
id = s.Field<string>("id"),
})
.Distinct().ToList();
With C++11, you can do std::string(v.data())
or, if your vector does not contain a '\0'
at the end, std::string(v.data(), v.size())
.
You need to add a name
attribute.
Since this is a multiple select, at the HTTP level, the client just sends multiple name/value pairs with the same name, you can observe this yourself if you use a form with method="GET": someurl?something=1&something=2&something=3
.
In the case of PHP, Ruby, and some other library/frameworks out there, you would need to add square braces ([]
) at the end of the name. The frameworks will parse that string and wil present it in some easy to use format, like an array.
Apart from manually parsing the request there's no language/framework/library-agnostic way of accessing multiple values, because they all have different APIs
For PHP you can use:
<select name="something[]" id="inscompSelected" multiple="multiple" class="lstSelected">
Give you a pagination component, which is maybe a little difficult to understand for newbie to react
:
Below query worked for me with default value false;
ALTER TABLE cti_contract_account ADD ready_to_audit BIT DEFAULT 0 NOT NULL;
... and so you should do something like this:
set(tuple ((a,b) for a in range(3)) for b in range(3))
... and if needed convert back to list
I would put A_Rank
et al into a 2D NumPy array, and then use numpy.mean()
and numpy.std()
to compute the means and the standard deviations:
In [17]: import numpy
In [18]: arr = numpy.array([A_rank, B_rank, C_rank])
In [20]: numpy.mean(arr, axis=0)
Out[20]:
array([ 0.7 , 2.2 , 1.8 , 2.13333333, 3.36666667,
5.1 ])
In [21]: numpy.std(arr, axis=0)
Out[21]:
array([ 0.45460606, 1.29614814, 1.37355985, 1.50628314, 1.15566239,
1.2083046 ])
I run into same problem.
What I found from documentation, we should use namedspace.
in your case {% url login:login_view %}
Use the following simple way to interactively get user data by a prompt as Arguments on what you want.
Version : Python 3.X
name = input('Enter Your Name: ')
print('Hello ', name)
In my case I am restoring a SQL Server 2008 R2 Database to SQL Server 2016 After selecting the file in the General tab, you should go to the Options tab and do 2 things:
- You must activate Overwrite existing database
- You must deactivate end of record copy
My solution to this problem was to use the $() sub-expression block.
Add-Type -Language CSharp @"
public class Thing{
public string Name;
}
"@;
$x = New-Object Thing
$x.Name = "Bill"
Write-Output "My name is $($x.Name)"
Write-Output "This won't work right: $x.Name"
Gives:
My name is Bill
This won't work right: Thing.Name
The Python documentation does explain it.
Tuples and lists are compared lexicographically using comparison of corresponding elements. This means that to compare equal, each element must compare equal and the two sequences must be of the same type and have the same length.
Did you try to chomp the $str1
and $str2
?
I found a similar issue with using (another) $str1
eq 'Y' and it only went away when I first did:
chomp($str1);
if ($str1 eq 'Y') {
....
}
works after that.
Hope that helps.
private void f(Button b, final int a[]) {
b.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
a[0] = a[0] * 5;
}
});
}
I'm quite a beginner in Python and I found the answer of Anand was very good but quite complicated to me, so I try to reformulate :
1) insert
and append
methods are not specific to sys.path
and as in other languages they add an item into a list or array and :
* append(item)
add item
to the end of the list,
* insert(n, item)
inserts the item
at the nth position in the list (0
at the beginning, 1
after the first element, etc ...).
2) As Anand said, python search the import files in each directory of the path in the order of the path, so :
* If you have no file name collisions, the order of the path has no impact,
* If you look after a function already defined in the path and you use append
to add your path, you will not get your function but the predefined one.
But I think that it is better to use append
and not insert
to not overload the standard behaviour of Python, and use non-ambiguous names for your files and methods.
If you don't want to modify the vector (erase, sort) then you can use the Newton library, In the algorithm sublibrary there is a function call, copy_single
template <class INPUT_ITERATOR, typename T>
void copy_single( INPUT_ITERATOR first, INPUT_ITERATOR last, std::vector<T> &v )
so You can:
std::vector<TYPE> copy; // empty vector
newton::copy_single(first, last, copy);
where copy is the vector in where you want to push_back the copy of the unique elements. but remember you push_back the elements, and you don't create a new vector
anyway, this is faster because you don't erase() the elements (which takes a lot of time, except when you pop_back(), because of reassignment)
I make some experiments and it's faster.
Also, you can use:
std::vector<TYPE> copy; // empty vector
newton::copy_single(first, last, copy);
original = copy;
sometimes is still faster.
This solution works like many of the others, and in fact uses the same regex as one of them, however in stead of returning a HTML String this will return a document fragment containing the A element and any applicable text nodes.
function make_link(string) {
var words = string.split(' '),
ret = document.createDocumentFragment();
for (var i = 0, l = words.length; i < l; i++) {
if (words[i].match(/[-a-zA-Z0-9@:%_\+.~#?&//=]{2,256}\.[a-z]{2,4}\b(\/[-a-zA-Z0-9@:%_\+.~#?&//=]*)?/gi)) {
var elm = document.createElement('a');
elm.href = words[i];
elm.textContent = words[i];
if (ret.childNodes.length > 0) {
ret.lastChild.textContent += ' ';
}
ret.appendChild(elm);
} else {
if (ret.lastChild && ret.lastChild.nodeType === 3) {
ret.lastChild.textContent += ' ' + words[i];
} else {
ret.appendChild(document.createTextNode(' ' + words[i]));
}
}
}
return ret;
}
There are some caveats, namely with older IE and textContent support.
here is a demo.
In Bootstrap v5 use: data-bs-interval="false"
<div id="carouselExampleCaptions" class="carousel" data-bs-ride="carousel" data-bs-interval="false">
You could use psutil as a platform independent solution!
import psutil
psutil.pids()
[1, 2, 3, 4, 5, 6, 7, 46, 48, 50, 51, 178, 182, 222, 223, 224,
268, 1215, 1216, 1220, 1221, 1243, 1244, 1301, 1601, 2237, 2355,
2637, 2774, 3932, 4176, 4177, 4185, 4187, 4189, 4225, 4243, 4245,
4263, 4282, 4306, 4311, 4312, 4313, 4314, 4337, 4339, 4357, 4358,
4363, 4383, 4395, 4408, 4433, 4443, 4445, 4446, 5167, 5234, 5235,
5252, 5318, 5424, 5644, 6987, 7054, 7055, 7071]
From the PHP Manual:
Warning This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide. Alternatives to this function include:
mysqli_connect()
PDO::__construct()
use MySQLi
or PDO
<?php
$con = mysqli_connect('localhost', 'username', 'password', 'database');
There are ways to do this without having to quit the CLI and pipe mongo
output to a non-tty.
To save the output from a query with result x
we can do the following to directly store the json output to /tmp/x.json
:
> EDITOR="cat > /tmp/x.json"
> x = db.MyCollection.find(...).toArray()
> edit x
>
Note that the output isn't strictly Json but rather the dialect that Mongo uses.
All four answers so far are incorrect, in that they assert a specific order of events.
Believing that "urban legend" has led many a novice (and professional) astray, to wit, the endless stream of questions about Undefined Behavior in expressions.
So.
For the built-in C++ prefix operator,
++x
increments x
and produces (as the expression's result) x
as an lvalue, while
x++
increments x
and produces (as the expression's result) the original value of x
.
In particular, for x++
there is no no time ordering implied for the increment and production of original value of x
. The compiler is free to emit machine code that produces the original value of x
, e.g. it might be present in some register, and that delays the increment until the end of the expression (next sequence point).
Folks who incorrectly believe the increment must come first, and they are many, often conclude from that certain expressions must have well defined effect, when they actually have Undefined Behavior.
You can use this:
return RedirectToAction("actionName", "controllerName", new { area = "Admin" });
The examples above don't correctly apply this
or pass arguments
correctly to the function override. Underscore _.wrap() wraps existing functions, applies this
and passes arguments
correctly. See: http://underscorejs.org/#wrap
Some great answers here already. What worked for me, was to move the comments to the next line.
BAD:
WORKDIR /tmp/app/src # set the working directory (WORKDIR), so we can reference program directly instead of providing the full path.
COPY src/ /tmp/app/src/ # copy the project source code
GOOD:
WORKDIR /tmp/app/src
# set the working directory (WORKDIR), so we can reference program directly instead of providing the full path.
COPY src/ /tmp/app/src/
# copy the project source code
using System.IO;
//...
string[] files;
if (Directory.Exists(Path)) {
files = Directory.GetFiles(Path, @"*.xml", SearchOption.TopDirectoryOnly);
//...
Looks like the FontAwesome icon color responds to text-info, text-error, etc.
<div style="font-size: 44px;">
<i class="icon-umbrella icon-large text-error"></i>
</div>
Use this in your li
style.
style="text-align-last: left;"
The solution that worked for me:
This will prevent the Tab bar component from setting its default image tint.
Text - here I created a simple UITabBarController subclass and in its viewDidLoad method I customized the default and selected text color like this:
class HomeTabBarController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
let appearance = UITabBarItem.appearance(whenContainedInInstancesOf: [HomeTabBarController.self])
appearance.setTitleTextAttributes([NSAttributedStringKey.foregroundColor: .black], for: .normal)
appearance.setTitleTextAttributes([NSAttributedStringKey.foregroundColor: .red], for: .selected)
}
}
Just set this class as your Tab bar controller custom class in identity inspector in IB.
Voila! That's it.
iOS 13 Update:
Add this to your setup for iOS 13:
if #available(iOS 13, *) {
let appearance = UITabBarAppearance()
appearance.stackedLayoutAppearance.selected.titleTextAttributes = [NSAttributedString.Key.foregroundColor: .red]
tabBar.standardAppearance = appearance
}
If you are running dockerized MySQL container such as ones from this official Docker Image registry: https://hub.docker.com/_/mysql/ You may encounter this issue as well.
Perhaps the following, then your calculator can use arbitrary number base (e.g. hex, binary, base 7! etc): (untested)
def convert(str):
try:
base = 10 # default
if ':' in str:
sstr = str.split(':')
base, str = int(sstr[0]), sstr[1]
val = int(str, base)
except ValueError:
val = None
return val
val = convert(raw_input("Enter value:"))
# 10 : Decimal
# 16:a : Hex, 10
# 2:1010 : Binary, 10
You can use gridspec to control the spacing between axes. There's more information here.
import matplotlib.pyplot as plt
import matplotlib.gridspec as gridspec
plt.figure(figsize = (4,4))
gs1 = gridspec.GridSpec(4, 4)
gs1.update(wspace=0.025, hspace=0.05) # set the spacing between axes.
for i in range(16):
# i = i + 1 # grid spec indexes from 0
ax1 = plt.subplot(gs1[i])
plt.axis('on')
ax1.set_xticklabels([])
ax1.set_yticklabels([])
ax1.set_aspect('equal')
plt.show()
The problem is the tv.setText(text)
. The variable tv is probably null
and you call the setText
method on that null
, which you can't.
My guess that the problem is on the findViewById
method, but it's not here, so I can't tell more, without the code.
In my view the most realistic scenario is when tasks have a heavy operation to complete. Shivprasad's approach focuses more on object creation/memory allocation than on computing itself. I made a research calling the following method:
public static double SumRootN(int root)
{
double result = 0;
for (int i = 1; i < 10000000; i++)
{
result += Math.Exp(Math.Log(i) / root);
}
return result;
}
Execution of this method takes about 0.5sec.
I called it 200 times using Parallel:
Parallel.For(0, 200, (int i) =>
{
SumRootN(10);
});
Then I called it 200 times using the old-fashioned way:
List<Task> tasks = new List<Task>() ;
for (int i = 0; i < loopCounter; i++)
{
Task t = new Task(() => SumRootN(10));
t.Start();
tasks.Add(t);
}
Task.WaitAll(tasks.ToArray());
First case completed in 26656ms, the second in 24478ms. I repeated it many times. Everytime the second approach is marginaly faster.
The accepted answer (as of 2019 JULY 29) is only still valid if you have not started using the more recent SVG-with-JS approach of FontAwesome. In which case you need to follow the instructions on their CSS Pseudo-Elements HowTo. Basically there are three things to watch out for:
You just need this:
$(".hidden").attr("placeholder", "Type here to search");
classList
is used for manipulating classes and not attributes.
Answer provided by Nicholas Krasnov
SELECT *
FROM BOOKING_SESSION
WHERE TO_CHAR(T_SESSION_DATETIME, 'DD-MM-YYYY') ='20-03-2012';
This error is caused by:
Y = Dataset.iloc[:,18].values
Indexing is out of bounds here most probably because there are less than 19 columns in your Dataset, so column 18 does not exist. The following code you provided doesn't use Y at all, so you can just comment out this line for now.
First, thanks for the answers above! They lead to my solution.
I added this alias to my .bashrc file:
alias now='date +%Y-%m-%d-%H.%M.%S'
Now when I want to put a time stamp on a file such as a build log I can do this:
mvn clean install | tee build-$(now).log
and I get a file name like:
build-2021-02-04-03.12.12.log
Check these links: http://www.orcsweb.com/blog/james/powershell-ing-on-windows-server-how-to-import-certificates-using-powershell/
Import-Certificate: http://poshcode.org/1937
You can do something like:
dir -Path C:\Certs -Filter *.cer | Import-Certificate -CertFile $_ -StoreNames AuthRoot, Root -LocalMachine -Verbose
Do you use https links instead of ssh links? Because the https link is limited by the size of the upload of HttpServer (such as Apache, Ngnix), there is no such restriction when using ssh.
Use the following method to switch to the ssh link.
$ git remote -v
origin https://github.com/[user_name]/[project_name].git (fetch)
origin https://github.com/[user_name]/[project_name].git (push)
git remote set-url origin [email protected]:[user_name]/[project_name].git
If you determine the remote repository name, proceed directly to step 4. Now, you can do the push operation happily.
In Kotlin:
fun showListDialog(context: Context){
// setup alert builder
val builder = AlertDialog.Builder(context)
builder.setTitle("Choose an Item")
// add list items
val listItems = arrayOf("Item 0","Item 1","Item 2")
builder.setItems(listItems) { dialog, which ->
when (which) {
0 ->{
Toast.makeText(context,"You Clicked Item 0",Toast.LENGTH_LONG).show()
dialog.dismiss()
}
1->{
Toast.makeText(context,"You Clicked Item 1",Toast.LENGTH_LONG).show()
dialog.dismiss()
}
2->{
Toast.makeText(context,"You Clicked Item 2",Toast.LENGTH_LONG).show()
dialog.dismiss()
}
}
}
// create & show alert dialog
val dialog = builder.create()
dialog.show()
}
Personally, I don't see anything bad in this code.
It's pretty useful when you want to log an int value, and the logger just accepts a string. I would say such a conversion is convenient when you need to call a method accepting a String, but you have an int value.
As for the choice between Integer.toString
or String.valueOf
, it's all a matter of taste.
...And internally, the String.valueOf
calls the Integer.toString
method by the way. :)
You need to add 2 methods, note __hash__
and __eq__
:
class MyThing:
def __init__(self,name,location,length):
self.name = name
self.location = location
self.length = length
def __hash__(self):
return hash((self.name, self.location))
def __eq__(self, other):
return (self.name, self.location) == (other.name, other.location)
def __ne__(self, other):
# Not strictly necessary, but to avoid having both x==y and x!=y
# True at the same time
return not(self == other)
The Python dict documentation defines these requirements on key objects, i.e. they must be hashable.
Although the accepted answer works fine, since v0.21.0rc1 it gives a warning
UserWarning: Pandas doesn't allow columns to be created via a new attribute name
Instead, one can do
df[["X", "A", "B", "C"]].plot(x="X", kind="bar")
I think the simplest way is trying to change the system date (that requires admin rights):
date %date%
if errorlevel 1 (
echo You have NOT admin rights
) else (
echo You have admin rights
)
If %date%
variable may include the day of week, just get the date from last part of DATE
command:
for /F "delims=" %%a in ('date ^<NUL') do set "today=%%a" & goto break
:break
for %%a in (%today%) do set "today=%%a"
date %today%
if errorlevel 1 ...
The second syntax has the unwanted possibility of a cross join: you can add tables to the FROM part without corresponding WHERE clause. This is considered harmful.
Note: Commenting out bind_ip can make your system vulnerable to security flaws. Please see Security Checklist. It is a better idea to add more IP addresses than to open up your system to everything.
You need to edit your /etc/mongod.conf file's bind_ip variable to include the IP of the computer you're using, or eliminate it altogether.
I was able to connect using the following mongod.conf file. I commented out bind_ip and uncommented port.
# mongod.conf
# Where to store the data.
# Note: if you run MongoDB as a non-root user (recommended) you may
# need to create and set permissions for this directory manually.
# E.g., if the parent directory isn't mutable by the MongoDB user.
dbpath=/var/lib/mongodb
# Where to log
logpath=/var/log/mongodb/mongod.log
logappend=true
port = 27017
# Listen to local interface only. Comment out to listen on all
interfaces.
#bind_ip = 127.0.0.1
# Disables write-ahead journaling
# nojournal = true
# Enables periodic logging of CPU utilization and I/O wait
#cpu = true
# Turn on/off security. Off is currently the default
#noauth = true
#auth = true
# Verbose logging output.
#verbose = true
# Inspect all client data for validity on receipt (useful for
# developing drivers)
#objcheck = true
# Enable db quota management
#quota = true
# Set oplogging level where n is
# 0=off (default)
# 1=W
# 2=R
# 3=both
# 7=W+some reads
#diaglog = 0
# Ignore query hints
#nohints = true
# Enable the HTTP interface (Defaults to port 28017).
#httpinterface = true
# Turns off server-side scripting. This will result in greatly limited
# functionality
#noscripting = true
# Turns off table scans. Any query that would do a table scan fails.
#notablescan = true
# Disable data file preallocation.
#noprealloc = true
# Specify .ns file size for new databases.
# nssize = <size>
# Replication Options
# In replicated MongoDB databases, specify the replica set name here
#replSet=setname
# Maximum size in megabytes for replication operation log
#oplogSize=1024
# Path to a key file storing authentication info for connections
# between replica set members
#keyFile=/path/to/keyfile
Don't forget to restart the mongod service before trying to connect:
service mongod restart
From Robomongo, I used the following connection settings:
Connection Tab:
SSH Tab:
SSH Address: [VPS IP] : 22
SSH User Name: [Username for sudo enabled user]
SSH Auth Method: Password
User Password: Supersecret
It's related absolutely to your terminal. VTE doesn't support blink, If you use gnome-terminal
, tilda
, guake
, terminator
, xfce4-terminal
and so on according to VTE, you won't have blink.
If you use or want to use blink on VTE, you have to use xterm
.
You can use infocmp command with terminal name:
#infocmp vt100
#infocmp xterm
#infocmp vte
For example :
# infocmp vte
# Reconstructed via infocmp from file: /usr/share/terminfo/v/vte
vte|VTE aka GNOME Terminal,
am, bce, mir, msgr, xenl,
colors#8, cols#80, it#8, lines#24, ncv#16, pairs#64,
acsc=``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
bel=^G, bold=\E[1m, civis=\E[?25l, clear=\E[H\E[2J,
cnorm=\E[?25h, cr=^M, csr=\E[%i%p1%d;%p2%dr,
cub=\E[%p1%dD, cub1=^H, cud=\E[%p1%dB, cud1=^J,
cuf=\E[%p1%dC, cuf1=\E[C, cup=\E[%i%p1%d;%p2%dH,
cuu=\E[%p1%dA, cuu1=\E[A, dch=\E[%p1%dP, dch1=\E[P,
dim=\E[2m, dl=\E[%p1%dM, dl1=\E[M, ech=\E[%p1%dX, ed=\E[J,
el=\E[K, enacs=\E)0, home=\E[H, hpa=\E[%i%p1%dG, ht=^I,
hts=\EH, il=\E[%p1%dL, il1=\E[L, ind=^J, invis=\E[8m,
is2=\E[m\E[?7h\E[4l\E>\E7\E[r\E[?1;3;4;6l\E8,
kDC=\E[3;2~, kEND=\E[1;2F, kHOM=\E[1;2H, kIC=\E[2;2~,
kLFT=\E[1;2D, kNXT=\E[6;2~, kPRV=\E[5;2~, kRIT=\E[1;2C,
kb2=\E[E, kbs=\177, kcbt=\E[Z, kcub1=\EOD, kcud1=\EOB,
kcuf1=\EOC, kcuu1=\EOA, kdch1=\E[3~, kend=\EOF, kf1=\EOP,
kf10=\E[21~, kf11=\E[23~, kf12=\E[24~, kf13=\E[1;2P,
kf14=\E[1;2Q, kf15=\E[1;2R, kf16=\E[1;2S, kf17=\E[15;2~,
kf18=\E[17;2~, kf19=\E[18;2~, kf2=\EOQ, kf20=\E[19;2~,
kf21=\E[20;2~, kf22=\E[21;2~, kf23=\E[23;2~,
kf24=\E[24;2~, kf25=\E[1;5P, kf26=\E[1;5Q, kf27=\E[1;5R,
kf28=\E[1;5S, kf29=\E[15;5~, kf3=\EOR, kf30=\E[17;5~,
kf31=\E[18;5~, kf32=\E[19;5~, kf33=\E[20;5~,
kf34=\E[21;5~, kf35=\E[23;5~, kf36=\E[24;5~,
kf37=\E[1;6P, kf38=\E[1;6Q, kf39=\E[1;6R, kf4=\EOS,
kf40=\E[1;6S, kf41=\E[15;6~, kf42=\E[17;6~,
kf43=\E[18;6~, kf44=\E[19;6~, kf45=\E[20;6~,
kf46=\E[21;6~, kf47=\E[23;6~, kf48=\E[24;6~,
kf49=\E[1;3P, kf5=\E[15~, kf50=\E[1;3Q, kf51=\E[1;3R,
kf52=\E[1;3S, kf53=\E[15;3~, kf54=\E[17;3~,
kf55=\E[18;3~, kf56=\E[19;3~, kf57=\E[20;3~,
kf58=\E[21;3~, kf59=\E[23;3~, kf6=\E[17~, kf60=\E[24;3~,
kf61=\E[1;4P, kf62=\E[1;4Q, kf63=\E[1;4R, kf7=\E[18~,
kf8=\E[19~, kf9=\E[20~, kfnd=\E[1~, khome=\EOH,
kich1=\E[2~, kind=\E[1;2B, kmous=\E[M, knp=\E[6~,
kpp=\E[5~, kri=\E[1;2A, kslt=\E[4~, meml=\El, memu=\Em,
op=\E[39;49m, rc=\E8, rev=\E[7m, ri=\EM, ritm=\E[23m,
rmacs=^O, rmam=\E[?7l, rmcup=\E[2J\E[?47l\E8, rmir=\E[4l,
rmkx=\E[?1l\E>, rmso=\E[m, rmul=\E[m, rs1=\Ec,
rs2=\E7\E[r\E8\E[m\E[?7h\E[!p\E[?1;3;4;6l\E[4l\E>\E[?1000l\E[?25h,
sc=\E7, setab=\E[4%p1%dm, setaf=\E[3%p1%dm,
sgr=\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p5%t;2%;%?%p7%t;8%;%?%p1%p3%|%t;7%;m%?%p9%t\016%e\017%;,
sgr0=\E[0m\017, sitm=\E[3m, smacs=^N, smam=\E[?7h,
smcup=\E7\E[?47h, smir=\E[4h, smkx=\E[?1h\E=, smso=\E[7m,
smul=\E[4m, tbc=\E[3g, u6=\E[%i%d;%dR, u7=\E[6n,
u8=\E[?%[;0123456789]c, u9=\E[c, vpa=\E[%i%p1%dd,
git difftool tag/branch filename
This basically has to do with the hardware architecture (i.e. RAM and caches).
If you don't use synchronized
together with wait()
or notify()
, another thread could enter the same block instead of waiting for the monitor to enter it. Moreover, when e.g. accessing an array without a synchronized block, another thread may not see the changement to it...actually another thread will not see any changements to it when it already has a copy of the array in the x-level cache (a.k.a. 1st/2nd/3rd-level caches) of the thread handling CPU core.
But synchronized blocks are only one side of the medal: If you actually access an object within a synchronized context from a non-synchronized context, the object still won't be synchronized even within a synchronized block, because it holds an own copy of the object in its cache. I wrote about this issues here: https://stackoverflow.com/a/21462631 and When a lock holds a non-final object, can the object's reference still be changed by another thread?
Furthermore, I'm convinced that the x-level caches are responsible for most non-reproducible runtime errors. That's because the developers usually don't learn the low-level stuff, like how CPU's work or how the memory hierarchy affects the running of applications: http://en.wikipedia.org/wiki/Memory_hierarchy
It remains a riddle why programming classes don't start with memory hierarchy and CPU architecture first. "Hello world" won't help here. ;)
I found slightly different problem running R on through mac terminal, but connecting remotely to an Ubuntu server, which prevented me from successfully installing a library.
The solution I have was finding out what "LANG" variable is used in Ubuntu terminal
Ubuntu > echo $LANG
en_US.TUF-8
I got "en_US.TUF-8" reply from Ubuntu.
In R session, however, I got "UTF-8" as the default value and it complained that LC_TYPEC Setting LC_CTYPE failed, using "C"
R> Sys.getenv("LANG")
"UTF-8"
So, I tried to change this variable in R. It worked.
R> Sys.setenv(LANG="en_US.UTF-8")
first of all;
a Fragment
must be inside a FragmentActivity
, that's the first rule,
a FragmentActivity
is quite similar to a standart Activity
that you already know, besides having some Fragment oriented methods
second thing about Fragments, is that there is one important method you MUST call, wich is onCreateView
, where you inflate your layout, think of it as the setContentLayout
here is an example:
@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { mView = inflater.inflate(R.layout.fragment_layout, container, false); return mView; }
and continu your work based on that mView, so to find a View
by id, call mView.findViewById(..);
for the FragmentActivity
part:
the xml part "must" have a FrameLayout
in order to inflate a fragment in it
<FrameLayout android:id="@+id/content_frame" android:layout_width="match_parent" android:layout_height="match_parent" > </FrameLayout>
as for the inflation part
getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, new YOUR_FRAGMENT, "TAG").commit();
begin with these, as there is tons of other stuf you must know about fragments and fragment activities, start of by reading something about it (like life cycle) at the android developer site
You can do this using generic SQL with group by
:
SELECT C.Content_ID, C.Content_Title, MAX(M.Media_Id)
FROM tbl_Contents C LEFT JOIN
tbl_Media M
ON M.Content_Id = C.Content_Id
GROUP BY C.Content_ID, C.Content_Title
ORDER BY MAX(C.Content_DatePublished) ASC;
Or with a correlated subquery:
SELECT C.Content_ID, C.Contt_Title,
(SELECT M.Media_Id
FROM tbl_Media M
WHERE M.Content_Id = C.Content_Id
ORDER BY M.MEDIA_ID DESC
LIMIT 1
) as Media_Id
FROM tbl_Contents C
ORDER BY C.Content_DatePublished ASC;
Of course, the syntax for limit 1
varies between databases. Could be top
. Or rownum = 1
. Or fetch first 1 rows
. Or something like that.
Instead of SELECT max(len(CR)) AS Max_Length_String FROM table1
Use
SELECT (CR) FROM table1
WHERE len(CR) = (SELECT max(len(CR)) FROM table1)
color
and fill
are separate aesthetics. Since you want to modify the color you need to use the corresponding scale:
d + scale_color_manual(values=c("#CC6666", "#9999CC"))
is what you want.
I had the same issue when trying to update error message in UILabel in the same ViewController (it takes a little while to update data when trying to do that with normal coding). I used DispatchQueue
in Swift 3 Xcode 8 and it works.
Or use PyInstaller as an alternative to py2exe. Here is a good starting point. PyInstaller also lets you create executables for linux and mac...
Here is how one could fairly easily use PyInstaller to solve the issue at hand:
pyinstaller oldlogs.py
From the tool's documentation:
PyInstaller analyzes myscript.py and:
- Writes myscript.spec in the same folder as the script.
- Creates a folder build in the same folder as the script if it does not exist.
- Writes some log files and working files in the build folder.
- Creates a folder dist in the same folder as the script if it does not exist.
- Writes the myscript executable folder in the dist folder.
In the dist folder you find the bundled app you distribute to your users.
df.sort()
is deprecated, use df.sort_values(...)
: https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.sort_values.html
Then follow joris' answer by doing df.reset_index(drop=True)
echo "body" | mail -S [email protected] "Hello"
-S lets you specify lots of string options, by far the easiest way to modify headers and such.
onBlur is when your focus is no longer on the field in question.
The onblur property returns the onBlur event handler code, if any, that exists on the current element.
onChange is when the value of the field changes.
for me, it didn't work without specifying the MIME in web.config, under <system.webServer><staticContent>
<mimeMap fileExtension=".ico" mimeType="image/ico" />
Lets take below object as example
let obj = { property1: 'value 1', property2: 'value 2'};
First fetch all the key in the obj
let keys = Object.keys(obj) //it will return array of keys
and then loop through it
keys.forEach(key => //your way)
just putting all together
Object.keys(obj).forEach(key=>{/*code here*/})
Try using:
xattr -rd com.apple.quarantine directoryname
This takes care of recursively removing the pesky attribute everywhere.
I am surprised that nobody has mentioned that properties are bound methods of a descriptor class, Adam Donohue and NeilenMarais get at exactly this idea in their posts -- that getters and setters are functions and can be used to:
This presents a smart way to hide implementation details and code cruft like regular expression, type casts, try .. except blocks, assertions or computed values.
In general doing CRUD on an object may often be fairly mundane but consider the example of data that will be persisted to a relational database. ORM's can hide implementation details of particular SQL vernaculars in the methods bound to fget, fset, fdel defined in a property class that will manage the awful if .. elif .. else ladders that are so ugly in OO code -- exposing the simple and elegant self.variable = something
and obviate the details for the developer using the ORM.
If one thinks of properties only as some dreary vestige of a Bondage and Discipline language (i.e. Java) they are missing the point of descriptors.
Rob's solution is the right one--use @require
with the jQuery library and be sure to reinstall your script so the directive gets processed.
One thing I think is worth adding is that you can use jQuery normally once you have included it in your script, except for AJAX methods. By default jQuery looks for XMLHttpRequest, which doesn't exist in the Greasemonkey context. I wrote about a workaround where you create a wrapper for GM_xmlhttpRequest (the Greasemonkey version of XHR) and use jQuery's ajaxSetup()
to specify your wrapped version as the default. Once you do this, you can use $.get
and $.post
as usual.
You may also have problems with jQuery's $.getJSON
because it loads JSONP using <script>
tags. This leads to errors because jQuery defines the callback function in the scope of the Greasemonkey window, and the loaded scripts looks for the callback in the scope of the main window. Your best bet is to use $.get
instead and parse the result with JSON.parse()
.
create trigger doct_trigger
after delete on doctor
for each row
delete from patient where patient.PrimaryDoctor_SSN=doctor.SSN ;
VB6 Installs just fine on Windows 7 (and Windows 8 / Windows 10) with a few caveats.
Here is how to install it:
C:\Windows
called MSJAVA.DLL
. The setup process will look for this file, and if it doesn't find it, will force an installation of old, old Java, and require a reboot. By creating the zero-byte file, the installation of moldy Java is bypassed, and no reboot will be required.SETUP.EXE
, select Run As Administrator
.C:\Program Files\Microsoft Visual Studio\VB98\
After changing these settings, fire up the IDE, and things should be back to normal, and the IDE is no longer sluggish.
Edit: Updated dead link to point to a different page with the same instructions
Edit: Updated the answer with the actual instructions in the post as the link kept dying
Simply translating the "old for loop way" into streams:
private Map<String, String> mapConfig(Map<String, Integer> input, String prefix) {
int subLength = prefix.length();
return input.entrySet().stream()
.collect(Collectors.toMap(
entry -> entry.getKey().substring(subLength),
entry -> AttributeType.GetByName(entry.getValue())));
}
Most answers blur the number element even if the cursor isn't hovering over it; the below does not
document.addEventListener("wheel", function(event) {
if (document.activeElement.type === "number" &&
document.elementFromPoint(event.x, event.y) == document.activeElement) {
document.activeElement.blur();
}
});
Given the sample you posted, this simple code should do the job:
fid = fopen('file.csv','r');
C = textscan(fid, repmat('%s',1,10), 'delimiter',';', 'CollectOutput',true);
C = C{1};
fclose(fid);
Then you could format the columns according to their type. For example if the first column is all integers, we can format it as such:
C(:,1) = num2cell( str2double(C(:,1)) )
Similarly, if you wish to convert the 8th column from hex to decimals, you can use HEX2DEC:
C(:,8) = cellfun(@hex2dec, strrep(C(:,8),'0x',''), 'UniformOutput',false);
The resulting cell array looks as follows:
C =
[ 4] 'abc' 'def' 'ghj' 'klm' '' '' [] '' ''
[NaN] '' '' '' '' 'Test' 'text' [ 255] '' ''
[NaN] '' '' '' '' 'asdfhsdf' 'dsafdsag' [3855] '' ''
This solution worked for me in swift 4:
let VCCount = self.navigationController!.viewControllers.count
self.navigationController?.viewControllers.removeSubrange(Range(VCCount-3..<VCCount - 1))
your current view controller index in stack is:
self.navigationController!.viewControllers.count - 1
I'm somewhat partial to Jersey. We use 1.10 in all our projects and haven't run into an issue we couldn't solve with it.
Some reasons why I like it:
In truth, HTTPClient and Jersey are very similar in implementation and API. There is also an extension for Jersey that allows it to support HTTPClient.
Some code samples with Jersey 1.x: https://blogs.oracle.com/enterprisetechtips/entry/consuming_restful_web_services_with
http://www.mkyong.com/webservices/jax-rs/restful-java-client-with-jersey-client/
HTTPClient with Jersey Client: https://blogs.oracle.com/PavelBucek/entry/jersey_client_apache_http_client
I've noticed that Eclipse will sometimes throw an exception upon starting an Android app, then LogCat stops updating. I've corrected that by simply restarting Eclipse. I'm not sure if you've tried that and I know it's far from an optimal solution, but I suspect that the Eclipse plugin still has a few bugs to iron out.
I was able to get this to work by using the Invoke-Expression
cmdlet.
Invoke-Expression "& `"$scriptPath`" test -r $number -b $testNumber -f $FileVersion -a $ApplicationID"
You need to use the val()
function to get the textbox value. text
does not exist as a property only as a function and even then its not the correct function to use in this situation.
var from = $("input#fromAddress").val()
val()
is the standard function for getting the value of an input.
You could also use custom events:
function Typer() {
// Some stuff
$(anyDomElement).trigger("myCustomEvent");
}
$(anyDomElement).on("myCustomEvent", function() {
// Some other stuff
});
You can implement this way
$resource('http://localhost\\:3000/realmen/:entryId', {entryId: '@entryId'}, {
UPDATE: {method: 'PUT', url: 'http://localhost\\:3000/realmen/:entryId' },
ACTION: {method: 'PUT', url: 'http://localhost\\:3000/realmen/:entryId/action' }
})
RealMen.query() //GET /realmen/
RealMen.save({entryId: 1},{post data}) // POST /realmen/1
RealMen.delete({entryId: 1}) //DELETE /realmen/1
//any optional method
RealMen.UPDATE({entryId:1}, {post data}) // PUT /realmen/1
//query string
RealMen.query({name:'john'}) //GET /realmen?name=john
Documentation: https://docs.angularjs.org/api/ngResource/service/$resource
Hope it helps
I'd use a static constructor on the class that sets the value of a static readonly array.
public class SomeClass
{
public readonly MyStruct[] myArray;
public static SomeClass()
{
myArray = { {"foo", "bar"},
{"boo", "far"}};
}
}
just open the hive terminal from the hive folder,after editing (bashrc) and (hive-site.xml) files. Steps-- open hive folder where it is installed. now open terminal from folder.
DECLARE @intFlag INT
SET @intFlag = 1
WHILE (@intFlag <=5)
BEGIN
PRINT @intFlag
SET @intFlag = @intFlag + 1
END
GO
This solution modifies Cycne's to use ES6 syntax and exit the loop early for external stylesheets. This solution does not modify external stylesheets
function changeStyle(findSelector, newDeclarations) {_x000D_
// Change original css style declaration._x000D_
document.styleSheets.forEach((sheet) => {_x000D_
if (sheet.href) return;_x000D_
const cssRulesList = sheet.cssRules;_x000D_
cssRulesList.forEach((styleRule) => {_x000D_
if (styleRule.selectorText === findSelector) {_x000D_
Object.keys(newDeclarations).forEach((cssProp) => {_x000D_
styleRule.style[cssProp] = newDeclarations[cssProp];_x000D_
});_x000D_
}_x000D_
});_x000D_
});_x000D_
}_x000D_
_x000D_
const styleDeclarations = {_x000D_
'width': '200px',_x000D_
'height': '400px',_x000D_
'color': '#F00'_x000D_
};_x000D_
changeStyle('.paintBox', styleDeclarations);
_x000D_
You must also have at least one style tag in your HTML head section, for example
<style> .paintBox {background-color: white;}</style>
Here is my approach that you may try:
import numpy as np
import matplotlib.pyplot as plt
w=10
h=10
fig=plt.figure(figsize=(8, 8))
columns = 4
rows = 5
for i in range(1, columns*rows +1):
img = np.random.randint(10, size=(h,w))
fig.add_subplot(rows, columns, i)
plt.imshow(img)
plt.show()
The resulting image:
(Original answer date: Oct 7 '17 at 4:20)
Edit 1
Since this answer is popular beyond my expectation. And I see that a small change is needed to enable flexibility for the manipulation of the individual plots. So that I offer this new version to the original code. In essence, it provides:-
New code:
import numpy as np
import matplotlib.pyplot as plt
w = 10
h = 10
fig = plt.figure(figsize=(9, 13))
columns = 4
rows = 5
# prep (x,y) for extra plotting
xs = np.linspace(0, 2*np.pi, 60) # from 0 to 2pi
ys = np.abs(np.sin(xs)) # absolute of sine
# ax enables access to manipulate each of subplots
ax = []
for i in range(columns*rows):
img = np.random.randint(10, size=(h,w))
# create subplot and append to ax
ax.append( fig.add_subplot(rows, columns, i+1) )
ax[-1].set_title("ax:"+str(i)) # set title
plt.imshow(img, alpha=0.25)
# do extra plots on selected axes/subplots
# note: index starts with 0
ax[2].plot(xs, 3*ys)
ax[19].plot(ys**2, xs)
plt.show() # finally, render the plot
The resulting plot:
Edit 2
In the previous example, the code provides access to the sub-plots with single index, which is inconvenient when the figure has many rows/columns of sub-plots. Here is an alternative of it. The code below provides access to the sub-plots with [row_index][column_index]
, which is more suitable for manipulation of array of many sub-plots.
import matplotlib.pyplot as plt
import numpy as np
# settings
h, w = 10, 10 # for raster image
nrows, ncols = 5, 4 # array of sub-plots
figsize = [6, 8] # figure size, inches
# prep (x,y) for extra plotting on selected sub-plots
xs = np.linspace(0, 2*np.pi, 60) # from 0 to 2pi
ys = np.abs(np.sin(xs)) # absolute of sine
# create figure (fig), and array of axes (ax)
fig, ax = plt.subplots(nrows=nrows, ncols=ncols, figsize=figsize)
# plot simple raster image on each sub-plot
for i, axi in enumerate(ax.flat):
# i runs from 0 to (nrows*ncols-1)
# axi is equivalent with ax[rowid][colid]
img = np.random.randint(10, size=(h,w))
axi.imshow(img, alpha=0.25)
# get indices of row/column
rowid = i // ncols
colid = i % ncols
# write row/col indices as axes' title for identification
axi.set_title("Row:"+str(rowid)+", Col:"+str(colid))
# one can access the axes by ax[row_id][col_id]
# do additional plotting on ax[row_id][col_id] of your choice
ax[0][2].plot(xs, 3*ys, color='red', linewidth=3)
ax[4][3].plot(ys**2, xs, color='green', linewidth=3)
plt.tight_layout(True)
plt.show()
The resulting plot:
These two approaches produce identical dictionaries, except, as you've noted, where the lexical rules of Python interfere.
Dictionary literals are a little more obviously dictionaries, and you can create any kind of key, but you need to quote the key names. On the other hand, you can use variables for keys if you need to for some reason:
a = "hello"
d = {
a: 'hi'
}
The dict()
constructor gives you more flexibility because of the variety of forms of input it takes. For example, you can provide it with an iterator of pairs, and it will treat them as key/value pairs.
I have no idea why PyCharm would offer to convert one form to the other.
Though, the question is asked long back, I see this same issue recently after installing Android Studio 2.1.0v, and JDK 7.80 on my PC Windows 10, 32 bit OS. I got this error.
No JVM installation found. Please install a 32 bit JDK. If you already have a JDK installed define a JAVA_HOME variable in Computer > System Properties > System Settings > Environment Variables.
I tried different ways to fix this nothing worked. But As per System Requirements in this Android developer website link.
Its solved after installing JDK 8(jdk-8u101-windows-i586.exe) JDK download site link.
Hope it helps somebody.
Here is how to to that:
The header and footer are 30px height.
The footer is stuck to the bottom of the page.
HTML:
<div id="header">
</div>
<div id="content">
</div>
<div id="footer">
</div>
CSS:
#header {
height: 30px;
}
#footer {
height: 30px;
position: absolute;
bottom: 0;
}
body {
height: 100%;
margin-bottom: 30px;
}
Try it on jsfiddle: http://jsfiddle.net/Usbuw/
I have have this problem a number of times and there seems to be 2 ways of fixing it (shown below). You can use either of these properties to fix the rendering, or both at the same time.
Backface visibility hidden fixes the problem as it simplifies the animation to just the front of the object, whereas the default state is the front and the back.
backface-visibility: hidden;
TranslateZ also works as it is a hack to add hardware acceleration to the animation.
transform: translateZ(0);
Both of these properties fix the problem that you are having but some people also like to add
-webkit-font-smoothing: subpixel-antialiased;
to their animated to object. I find that it can change the rendering of a web font but feel free to experiment with that method too.
Just add margin: 0 auto;
to the inside div.
For me the issue had to do with the parameters assigned to the package.
In SSMS, Navigate to:
"Integration Services Catalog -> SSISDB -> Project Folder Name -> Projects -> Project Name"
Make sure you right click on your "Project Name" and then validate that 32-bit runtime is set correctly and that the parameters that are used by default are instantiated properly. Check parameter NAMES and initial values. For my package, I was using values that were not correct and so I had to repopulate the parameter defaults prior to executing my package. Check the values you are using against the defaults you have set for your parameters you have set up in your SSIS package. Once these match the issue should be resolved (for some)
In your user settings add:
"C_Cpp.default.includePath":["path1","path2"]
Here's a polyfill for the Number
predicate functions:
"use strict";
Number.isNaN = Number.isNaN ||
n => n !== n; // only NaN
Number.isNumeric = Number.isNumeric ||
n => n === +n; // all numbers excluding NaN
Number.isFinite = Number.isFinite ||
n => n === +n // all numbers excluding NaN
&& n >= Number.MIN_VALUE // and -Infinity
&& n <= Number.MAX_VALUE; // and +Infinity
Number.isInteger = Number.isInteger ||
n => n === +n // all numbers excluding NaN
&& n >= Number.MIN_VALUE // and -Infinity
&& n <= Number.MAX_VALUE // and +Infinity
&& !(n % 1); // and non-whole numbers
Number.isSafeInteger = Number.isSafeInteger ||
n => n === +n // all numbers excluding NaN
&& n >= Number.MIN_SAFE_INTEGER // and small unsafe numbers
&& n <= Number.MAX_SAFE_INTEGER // and big unsafe numbers
&& !(n % 1); // and non-whole numbers
All major browsers support these functions, except isNumeric
, which is not in the specification because I made it up. Hence, you can reduce the size of this polyfill:
"use strict";
Number.isNumeric = Number.isNumeric ||
n => n === +n; // all numbers excluding NaN
Alternatively, just inline the expression n === +n
manually.
Thus, to summarise the existing discussion, adding
cex.lab=1.5, cex.axis=1.5, cex.main=1.5, cex.sub=1.5
to your plot, where 1.5 could be 2, 3, etc. and a value of 1 is the default will increase the font size.
x <- rnorm(100)
hist(x, xlim=range(x),
xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE)
hist(x, xlim=range(x),
xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE,
cex=1.5)
hist(x, xlim=range(x),
xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE,
cex.lab=1.5, cex.axis=1.5, cex.main=1.5, cex.sub=1.5)
Here is how I show hover text using JavaScript tooltip:
<script language="JavaScript" type="text/javascript" src="javascript/wz_tooltip.js"></script>
<div class="curhand" onmouseover="this.T_WIDTH=125; return escape('Welcome')">Are you New Here?</div>
WSDL: Stands for Web Service Description Language
In SOAP(simple object access protocol), when you use web service and add a web service to your project, your client application(s) doesn't know about web service Functions. Nowadays it's somehow old-fashion and for each kind of different client you have to implement different WSDL
files. For example you cannot use same file for .Net
and php
client.
The WSDL
file has some descriptions about web service functions. The type of this file is XML
. SOAP
is an alternative for REST
.
REST: Stands for Representational State Transfer
It is another kind of API service, it is really easy to use for clients. They do not need to have special file extension like WSDL
files. The CRUD operation can be implemented by different HTTP Verbs
(GET for Reading, POST for Creation, PUT or PATCH for Updating and DELETE for Deleting the desired document) , They are based on HTTP
protocol and most of times the response is in JSON
or XML
format. On the other hand the client application have to exactly call the related HTTP Verb
via exact parameters names and types. Due to not having special file for definition, like WSDL
, it is a manually job using the endpoint. But it is not a big deal because now we have a lot of plugins for different IDEs to generating the client-side implementation.
SOA: Stands for Service Oriented Architecture
Includes all of the programming with web services concepts and architecture. Imagine that you want to implement a large-scale application. One practice can be having some different services, called micro-services and the whole application mechanism would be calling needed web service at the right time.
Both REST
and SOAP
web services are kind of SOA
.
JSON: Stands for javascript Object Notation
when you serialize an object for javascript the type of object format is JSON. imagine that you have the human class :
class Human{
string Name;
string Family;
int Age;
}
and you have some instances from this class :
Human h1 = new Human(){
Name='Saman',
Family='Gholami',
Age=26
}
when you serialize the h1 object to JSON the result is :
[h1:{Name:'saman',Family:'Gholami',Age:'26'}, ...]
javascript
can evaluate this format by eval()
function and make an associative array from this JSON
string. This one is different concept in comparison to other concepts I described formerly.
This could be more helpfull....
$("element").prop("id", "modifiedId");
//for boolean
$("element").prop("disabled", true);
//also you can remove attribute
$('#someid').removeProp('disabled');
I think there are a few things to understand when working with API Gateway integration with Lambda.
There used to be only Lambda Integration which requires mapping templates. I suppose this is why still seeing many examples using it.
As of September 2017, you no longer have to configure mappings to access the request body.
Lambda Proxy Integration, If you enable it, API Gateway will map every request to JSON and pass it to Lambda as the event object. In the Lambda function you’ll be able to retrieve query string parameters, headers, stage variables, path parameters, request context, and the body from it.
Without enabling Lambda Proxy Integration, you’ll have to create a mapping template in the Integration Request section of API Gateway and decide how to map the HTTP request to JSON yourself. And you’d likely have to create an Integration Response mapping if you were to pass information back to the client.
Before Lambda Proxy Integration was added, users were forced to map requests and responses manually, which was a source of consternation, especially with more complex mappings.
Words need to navigate the thinking. To get the terminologies straight.
Lambda Proxy Integration = Pass through
Simply pass the HTTP request through to lambda.
Lambda Integration = Template transformation
Go through a transformation process using the Apache Velocity template and you need to write the template by yourself.
Using Lambda Proxy Integration, the body in the event of lambda is a string escaped with backslash, not a JSON.
"body": "{\"foo\":\"bar\"}"
If tested in a JSON formatter.
Parse error on line 1:
{\"foo\":\"bar\"}
-^
Expecting 'STRING', '}', got 'undefined'
The document below is about response but it should apply to request.
The body field, if you are returning JSON, must be converted to a string or it will cause further problems with the response. You can use JSON.stringify to handle this in Node.js functions; other runtimes will require different solutions, but the concept is the same.
For JavaScript to access it as a JSON object, need to convert it back into JSON object with json.parse in JapaScript, json.dumps in Python.
Strings are useful for transporting but you’ll want to be able to convert them back to a JSON object on the client and/or the server side.
The AWS documentation shows what to do.
if (event.body !== null && event.body !== undefined) {
let body = JSON.parse(event.body)
if (body.time)
time = body.time;
}
...
var response = {
statusCode: responseCode,
headers: {
"x-custom-header" : "my custom header value"
},
body: JSON.stringify(responseBody)
};
console.log("response: " + JSON.stringify(response))
callback(null, response);
Go to your project's "Properties" within visual studio. Then go to signing tab.
Then make sure Sign the Click Once manifests is turned off.
Updated Instructions:
Within your Solution Explorer:
Good news! Swift 4.2 (Xcode 10) finally provides CommonCrypto!
Just add import CommonCrypto
in your swift file.
I would suggest that you use Apache's commons logging utility. It is highly scalable and supports separate log files for different loggers. See here.
In React, the component will re-render (or update) only if the state or the prop changes.
In your case you have to update the state immediately after the change so that the component will re-render with the updates state value.
onTodoChange(event) {
// update the state
this.setState({name: event.target.value});
}
There are the following way to select first child
1) $('.second div:first-child')
2) $('.second *:first-child')
3) $('div:first-child', '.second')
4) $('*:first-child', '.second')
5) $('.second div:nth-child(1)')
6) $('.second').children().first()
7) $('.second').children().eq(0)
Update Aug 2020
Although the below is still worth reading for the useful info, we have had Flexbox for some time now, so just use that, as per this answer.
You can't use:
vertical-align:middle
because it's not applicable to block-level elements
margin-top:auto
and margin-bottom:auto
because their used values would compute as zero
margin-top:-50%
because percentage-based margin values are calculated relative to the width of containing block
In fact, the nature of document flow and element height calculation algorithms make it impossible to use margins for centering an element vertically inside its parent. Whenever a vertical margin's value is changed, it will trigger a parent element height re-calculation (re-flow), which would in turn trigger a re-center of the original element... making it an infinite loop.
You can use:
A few workarounds like this which work for your scenario; the three elements have to be nested like so:
.container {
display: table;
height: 100%;
position: absolute;
overflow: hidden;
width: 100%;
}
.helper {
#position: absolute;
#top: 50%;
display: table-cell;
vertical-align: middle;
}
.content {
#position: relative;
#top: -50%;
margin: 0 auto;
width: 200px;
border: 1px solid orange;
}
_x000D_
<div class="container">
<div class="helper">
<div class="content">
<p>stuff</p>
</div>
</div>
</div
_x000D_
JSFiddle works fine according to Browsershot.
You need to escape backslash with a \
$str = str_replace ("\\", "/", $str);
As the given tag to this question is CSS, I will provide the way I accomplished it.
Create a class in the .css file.
a.activePage{ color: green; border-bottom: solid; border-width: 3px;}
Nav-bar will be like:
NOTE: If you are already setting the style for all Nav-Bar elements using a class, you can cascade the special-case class we created with a white-space after the generic class in the html-tag.
Example: Here, I was already importing my style from a class called 'navList' I created for all list-items . But the special-case styling-attributes are part of class 'activePage'
.CSS file:
a.navList{text-decoration: none; color: gray;}
a.activePage{ color: green; border-bottom: solid; border-width: 3px;}
.HTML file:
<div id="sub-header">
<ul>
<li> <a href="index.php" class= "navList activePage" >Home</a> </li>
<li> <a href="contact.php" class= "navList">Contact Us</a> </li>
<li> <a href="about.php" class= "navList">About Us</a> </li>
</ul>
</div>
Look how I've cascaded one class-name behind other.
Numeric defines the TOTAL number of digits, and then the number after the decimal.
A numeric(3,2) can only hold up to 9.99.
First we need to set <serviceDebug includeExceptionDetailInFaults="True" /> in web.config:
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true" />
**<serviceDebug includeExceptionDetailInFaults="true" />**
</behavior>
</serviceBehaviors>
In addition to that at jquery level in error part you need to parse error response that contains exception like:
.error(function (response, q, t) {
var r = jQuery.parseJSON(response.responseText);
});
Then using r.Message you can actully show exception text.
Check complete code: http://www.codegateway.com/2012/04/jquery-ajax-handle-exception-thrown-by.html
$(function() {
$('.phrase .items').each(function(i, items_list){
var myText = "";
$(items_list).find('li').each(function(j, li){
alert(li.text());
})
alert(myText);
});
};
I would recommend separating out all of the foreign-key constraints from your CREATE TABLE
statements. Create all the tables first without FK constraints, and then create all the FK constraints once you have created the tables.
You can add an FK constraint to a table using SQL like the following:
ALTER TABLE orders ADD CONSTRAINT orders_FK
FOREIGN KEY (m_p_unique_id) REFERENCES library (m_p_unique_id);
In particular, your formats
and library
tables both have foreign-key constraints on one another. The two CREATE TABLE
statements to create these two tables can never run successfully, as each will only work when the other table has already been created.
Separating out the constraint creation allows you to create tables with FK constraints on one another. Also, if you have an error with a constraint, only that constraint fails to be created. At present, because you have errors in the constraints in your CREATE TABLE
statements, then entire table creation fails and you get various knock-on errors because FK constraints may depend on these tables that failed to create.
This is the perfect kind of field to define as CHAR 36, by the way, not VARCHAR 36, since each value will have the exact same length. And you'll use less storage space, since you don't need to store the data length for each value, just the value.
Since the existing answers were written, Xcode's interface has been updated and they're no longer correct (notably the Click on Window, Organiser // Expand the Teams section step). Now the instructions for importing an existing certificate are as follows:
To export selected certificates
- Choose Xcode > Preferences.
- Click Accounts at the top of the window.
- Select the team you want to view, and click View Details.
- Control-click the certificate you want to export in the Signing Identities table and choose Export from the pop-up menu.
- Enter a filename in the Save As field and a password in both the Password and Verify fields. The file is encrypted and password protected.
- Click Save. The file is saved to the location you specified with a .p12 extension.
Source (Apple's documentation)
To import it, I found that Xcode's let-me-help-you menu didn't recognise the .p12 file. Instead, I simply imported it manually into Keychain, then Xcode built and archived without complaining.
You can try by sending XHR Requests a few times, and then if you get errors it means there's a problem with the internet connection.
Edit: I found this JQuery script which is doing what you are asking for, I didn't test it though.