Simple JavaScript, string to float:
var it_price = chief_double($("#ContentPlaceHolder1_txt_it_price").val());
function chief_double(num){
var n = parseFloat(num);
if (isNaN(n)) {
return "0";
}
else {
return parseFloat(num);
}
}
Run cmd
and then run node server.js
. In your example, you are trying to use the REPL to run your command, which is not going to work. The ellipsis is node.js expecting more tokens before closing the current scope (you can type code in and run it on the fly here)
You can create you own operator :
'%&%' <- function(x, y)paste0(x,y)
"new" %&% "operator"
[1] newoperator`
You can also redefine 'and' (&
) operator :
'&' <- function(x, y)paste0(x,y)
"dirty" & "trick"
"dirtytrick"
messing with baseline syntax is ugly, but so is using paste()/paste0()
if you work only with your own code you can (almost always) replace logical & and
operator with *
and do multiplication of logical values instead of using logical 'and &'
Think about expectations.
As a client app, you expect to know if something goes wrong on the server side. If the server needs to throw an error when blah
is missing or the requestedResource
value is incorrect than a 400 error would be appropriate.
This Blog Post describes various styling aspects of EditText
and AutoCompleteTextView
wrapped by TextInputLayout
.
For EditText
and AppCompat lib 22.1.0+ you can set theme attribute with some theme related settings:
<style name="StyledTilEditTextTheme">
<item name="android:imeOptions">actionNext</item>
<item name="android:singleLine">true</item>
<item name="colorControlNormal">@color/greyLight</item>
<item name="colorControlActivated">@color/blue</item>
<item name="android:textColorPrimary">@color/blue</item>
<item name="android:textSize">@dimen/styledtil_edit_text_size</item>
</style>
<style name="StyledTilEditText">
<item name="android:theme">@style/StyledTilEditTextTheme</item>
<item name="android:paddingTop">4dp</item>
</style>
and apply them on EditText
:
<EditText
android:id="@+id/etEditText"
style="@style/StyledTilEditText"
For AutoCompleteTextView
things are more complicated because wrapping it in TextInputLayout
and applying this theme breaks floating label behaviour.
You need to fix this in code:
private void setStyleForTextForAutoComplete(int color) {
Drawable wrappedDrawable = DrawableCompat.wrap(autoCompleteTextView.getBackground());
DrawableCompat.setTint(wrappedDrawable, color);
autoCompleteTextView.setBackgroundDrawable(wrappedDrawable);
}
and in Activity.onCreate
:
setStyleForTextForAutoComplete(getResources().getColor(R.color.greyLight));
autoCompleteTextView.setOnFocusChangeListener((v, hasFocus) -> {
if(hasFocus) {
setStyleForTextForAutoComplete(getResources().getColor(R.color.blue));
} else {
if(autoCompleteTextView.getText().length() == 0) {
setStyleForTextForAutoComplete(getResources().getColor(R.color.greyLight));
}
}
});
An unwind segue (sometimes called exit segue) can be used to navigate back through push, modal or popover segues (as if you popped the navigation item from the navigation bar, closed the popover or dismissed the modally presented view controller). On top of that you can actually unwind through not only one but a series of push/modal/popover segues, e.g. "go back" multiple steps in your navigation hierarchy with a single unwind action.
When you perform an unwind segue, you need to specify an action, which is an action method of the view controller you want to unwind to.
Objective-C:
- (IBAction)unwindToThisViewController:(UIStoryboardSegue *)unwindSegue
{
}
Swift:
@IBAction func unwindToThisViewController(segue: UIStoryboardSegue) {
}
The name of this action method is used when you create the unwind segue in the storyboard. Furthermore, this method is called just before the unwind segue is performed. You can get the source view controller from the passed UIStoryboardSegue
parameter to interact with the view controller that initiated the segue (e.g. to get the property values of a modal view controller). In this respect, the method has a similar function as the prepareForSegue:
method of UIViewController
.
iOS 8 update: Unwind segues also work with iOS 8's adaptive segues, such as Show and Show Detail.
Let us have a storyboard with a navigation controller and three child view controllers:
From Green View Controller you can unwind (navigate back) to Red View Controller. From Blue you can unwind to Green or to Red via Green. To enable unwinding you must add the special action methods to Red and Green, e.g. here is the action method in Red:
Objective-C:
@implementation RedViewController
- (IBAction)unwindToRed:(UIStoryboardSegue *)unwindSegue
{
}
@end
Swift:
@IBAction func unwindToRed(segue: UIStoryboardSegue) {
}
After the action method has been added, you can define the unwind segue in the storyboard by control-dragging to the Exit icon. Here we want to unwind to Red from Green when the button is pressed:
You must select the action which is defined in the view controller you want to unwind to:
You can also unwind to Red from Blue (which is "two steps away" in the navigation stack). The key is selecting the correct unwind action.
Before the the unwind segue is performed, the action method is called. In the example I defined an unwind segue to Red from both Green and Blue. We can access the source of the unwind in the action method via the UIStoryboardSegue parameter:
Objective-C:
- (IBAction)unwindToRed:(UIStoryboardSegue *)unwindSegue
{
UIViewController* sourceViewController = unwindSegue.sourceViewController;
if ([sourceViewController isKindOfClass:[BlueViewController class]])
{
NSLog(@"Coming from BLUE!");
}
else if ([sourceViewController isKindOfClass:[GreenViewController class]])
{
NSLog(@"Coming from GREEN!");
}
}
Swift:
@IBAction func unwindToRed(unwindSegue: UIStoryboardSegue) {
if let blueViewController = unwindSegue.sourceViewController as? BlueViewController {
println("Coming from BLUE")
}
else if let redViewController = unwindSegue.sourceViewController as? RedViewController {
println("Coming from RED")
}
}
Unwinding also works through a combination of push/modal segues. E.g. if I added another Yellow view controller with a modal segue, we could unwind from Yellow all the way back to Red in a single step:
When you define an unwind segue by control-dragging something to the Exit symbol of a view controller, a new segue appears in the Document Outline:
Selecting the segue and going to the Attributes Inspector reveals the "Identifier" property. Use this to give a unique identifier to your segue:
After this, the unwind segue can be performed from code just like any other segue:
Objective-C:
[self performSegueWithIdentifier:@"UnwindToRedSegueID" sender:self];
Swift:
performSegueWithIdentifier("UnwindToRedSegueID", sender: self)
This is probably a good starting point (version 8.4+ only):
SELECT id_field, array_agg(value_field1), array_agg(value_field2)
FROM data_table
GROUP BY id_field
array_agg returns an array, but you can CAST that to text and edit as needed (see clarifications, below).
Prior to version 8.4, you have to define it yourself prior to use:
CREATE AGGREGATE array_agg (anyelement)
(
sfunc = array_append,
stype = anyarray,
initcond = '{}'
);
(paraphrased from the PostgreSQL documentation)
Clarifications:
Use try_files and named location block ('@apachesite'). This will remove unnecessary regex match and if block. More efficient.
location / {
root /path/to/root/of/static/files;
try_files $uri $uri/ @apachesite;
expires max;
access_log off;
}
location @apachesite {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://127.0.0.1:8080;
}
Update: The assumption of this config is that there doesn't exist any php script under /path/to/root/of/static/files
. This is common in most modern php frameworks. In case your legacy php projects have both php scripts and static files mixed in the same folder, you may have to whitelist all of the file types you want nginx to serve.
You're going to have to rely on each individual's machine having the correct file associations. If you try and open the application from JavaScript/VBScript in a web page, the spawned application is either going to itself be sandboxed (meaning decreased permissions) or there are going to be lots of security prompts.
My suggestion is to look to SharePoint server for this one. This is something that we know they do and you can edit in place, but the question becomes how they manage to pull that off. My guess is direct integration with Office. Either way, this isn't something that the Internet is designed to do, because I'm assuming you want them to edit the original document and not simply create their own copy (which is what the default behavior of file://
would be.
So depending on you options, it might be possible to create a client side application that gets installed on all your client machines and then responds to a particular file handler that says go open this application on the file server. Then it wouldn't really matter who was doing it since all browsers would simply hand off the request to you. You would have to create your own handler like fileserver://
.
The sql array type is not neccessary. Not if the element type is a primitive one. (Varchar, number, date,...)
Very basic sample:
declare
type TPidmList is table of sgbstdn.sgbstdn_pidm%type;
pidms TPidmList;
begin
select distinct sgbstdn_pidm
bulk collect into pidms
from sgbstdn
where sgbstdn_majr_code_1 = 'HS04'
and sgbstdn_program_1 = 'HSCOMPH';
-- do something with pidms
open :someCursor for
select value(t) pidm
from table(pidms) t;
end;
When you want to reuse it, then it might be interesting to know how that would look like. If you issue several commands than those could be grouped in a package. The private package variable trick from above has its downsides. When you add variables to a package, you give it state and now it doesn't act as a stateless bunch of functions but as some weird sort of singleton object instance instead.
e.g. When you recompile the body, it will raise exceptions in sessions that already used it before. (because the variable values got invalided)
However, you could declare the type in a package (or globally in sql), and use it as a paramter in methods that should use it.
create package Abc as
type TPidmList is table of sgbstdn.sgbstdn_pidm%type;
function CreateList(majorCode in Varchar,
program in Varchar) return TPidmList;
function Test1(list in TPidmList) return PLS_Integer;
-- "in" to make it immutable so that PL/SQL can pass a pointer instead of a copy
procedure Test2(list in TPidmList);
end;
create package body Abc as
function CreateList(majorCode in Varchar,
program in Varchar) return TPidmList is
result TPidmList;
begin
select distinct sgbstdn_pidm
bulk collect into result
from sgbstdn
where sgbstdn_majr_code_1 = majorCode
and sgbstdn_program_1 = program;
return result;
end;
function Test1(list in TPidmList) return PLS_Integer is
result PLS_Integer := 0;
begin
if list is null or list.Count = 0 then
return result;
end if;
for i in list.First .. list.Last loop
if ... then
result := result + list(i);
end if;
end loop;
end;
procedure Test2(list in TPidmList) as
begin
...
end;
return result;
end;
How to call it:
declare
pidms constant Abc.TPidmList := Abc.CreateList('HS04', 'HSCOMPH');
xyz PLS_Integer;
begin
Abc.Test2(pidms);
xyz := Abc.Test1(pidms);
...
open :someCursor for
select value(t) as Pidm,
xyz as SomeValue
from table(pidms) t;
end;
Based on the accepted answer, for those who encountered a similar issue, with full schema qualification:
([MyDataBase].[MySchemaName].[MyTable]
)... results in an error, you need to be in the context of that DB
That is, the following will throw an error:
DBCC CHECKIDENT ([MyDataBase].[MySchemaName].[MyTable], RESEED, 0)
Enclose the fully-qualified table name with single quotes instead:
DBCC CHECKIDENT ('[MyDataBase].[MySchemaName].[MyTable]', RESEED, 0)
In addition to @Boaz's and @vegemite4me's answers....
By implementing ImplicitNamingStrategy
you may create rules for automatically naming the constraints. Note you add your naming strategy to the metadataBuilder
during Hibernate's initialization:
metadataBuilder.applyImplicitNamingStrategy(new MyImplicitNamingStrategy());
It works for @UniqueConstraint
, but not for @Column(unique = true)
, which always generates a random name (e.g. UK_3u5h7y36qqa13y3mauc5xxayq).
There is a bug report to solve this issue, so if you can, please vote there to have this implemented. Here: https://hibernate.atlassian.net/browse/HHH-11586
Thanks.
#import <sys/socket.h>
#import <net/if_dl.h>
#import <ifaddrs.h>
#import <sys/xattr.h>
#define IFT_ETHER 0x6
...
- (NSString*)macAddress
{
NSString* result = nil;
char* macAddressString = (char*)malloc(18);
if (macAddressString != NULL)
{
strcpy(macAddressString, "");
struct ifaddrs* addrs = NULL;
struct ifaddrs* cursor;
if (getifaddrs(&addrs) == 0)
{
cursor = addrs;
while (cursor != NULL)
{
if ((cursor->ifa_addr->sa_family == AF_LINK) && (((const struct sockaddr_dl*)cursor->ifa_addr)->sdl_type == IFT_ETHER) && strcmp("en0", cursor->ifa_name) == 0)
{
const struct sockaddr_dl* dlAddr = (const struct sockaddr_dl*) cursor->ifa_addr;
const unsigned char* base = (const unsigned char*)&dlAddr->sdl_data[dlAddr->sdl_nlen];
for (NSInteger index = 0; index < dlAddr->sdl_alen; index++)
{
char partialAddr[3];
sprintf(partialAddr, "%02X", base[index]);
strcat(macAddressString, partialAddr);
}
}
cursor = cursor->ifa_next;
}
}
result = [[[NSString alloc] initWithUTF8String:macAddressString] autorelease];
free(macAddressString);
}
return result;
}
You can use Membership operator:
def list = ['Grace','Rob','Emmy']
assert ('Emmy' in list)
You can create a session:
import boto3
session = boto3.Session(
aws_access_key_id=settings.AWS_SERVER_PUBLIC_KEY,
aws_secret_access_key=settings.AWS_SERVER_SECRET_KEY,
)
Then use that session to get an S3 resource:
s3 = session.resource('s3')
You can use the getTime() method on a Date object to get the timestamp (in milliseconds) relative to January 1, 1970. If you convert your two dates into integer timestamps, you can then compare the difference by subtracting them. The result will be in milliseconds so you just divide by 1000 for seconds, then 60 for minutes, etc.
In case somebody will struggle with same issue, it is case sensitive statement, so wrong case means your application won't get the permission.
WRONG
<uses-permission android:name="ANDROID.PERMISSION.INTERNET" />
CORRECT
<uses-permission android:name="android.permission.INTERNET" />
This issue may happen ie. on autocomplete in IDE
Another good example might be: you have a class that supports the use of cartesian (x, y, z), spherical (r, theta, phi) and cylindrical coordinates (r, phi, z). For purposes of establishing equality (equals method), you would probably want to convert all representations to one "canonical" representation of your choosing, e.g. spherical coordinates. (Or maybe you would want to do this in general - i.e. use one internal representation.) I am not an expert, but this did occur to me as maybe a good concrete example.
Even if there are tools that allow you to mock your database in one way or another (e.g. jOOQ's MockConnection
, which can be seen in this answer - disclaimer, I work for jOOQ's vendor), I would advise not to mock larger databases with complex queries.
Even if you just want to integration-test your ORM, beware that an ORM issues a very complex series of queries to your database, that may vary in
Mocking all that to produce sensible dummy data is quite hard, unless you're actually building a little database inside your mock, which interprets the transmitted SQL statements. Having said so, use a well-known integration-test database that you can easily reset with well-known data, against which you can run your integration tests.
I´ve found a lot of answers here @ stackoverflow.com but definitely this is the correct answer of:
Activity:
Bundle bundle = new Bundle();
String myMessage = "Stackoverflow is cool!";
bundle.putString("message", myMessage );
FragmentClass fragInfo = new FragmentClass();
fragInfo.setArguments(bundle);
transaction.replace(R.id.fragment_single, fragInfo);
transaction.commit();
Fragment:
Reading the value in the fragment
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
Bundle bundle = this.getArguments();
String myValue = bundle.getString("message");
...
...
...
}
or just
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
String myValue = this.getArguments().getString("message");
...
...
...
}
I know this has an answer already but I saw an opportunity to improve upon one of the answers here. Toland H posted some very good code that does exactly what the question was asking for. Below is a shortened and expand version of Toland H's code:
function generate_timezone_list() {
static $allRegions = array(
DateTimeZone::AFRICA,
DateTimeZone::AMERICA,
DateTimeZone::ANTARCTICA,
DateTimeZone::ASIA,
DateTimeZone::ATLANTIC,
DateTimeZone::AUSTRALIA,
DateTimeZone::EUROPE,
DateTimeZone::INDIAN,
DateTimeZone::PACIFIC
);
// Makes it easier to create option groups next
$list = array ('AFRICA','AMERICA','ANTARCTICA','ASIA','ATLANTIC','AUSTRALIA','EUROPE','INDIAN','PACIFIC');
// Make array holding the regions (continents), they are arrays w/ all their cities
$region = array();
foreach ($allRegions as $area){
array_push ($region,DateTimeZone::listIdentifiers( $area ));
}
$count = count ($region); $i = 0; $holder = '';
// Go through each region one by one, sorting and formatting it's cities
while ($i < $count){
$chunck = $region[$i];
// Create the region (continents) option group
$holder .= '<optgroup label="---------- '.$list[$i].' ----------">';
$timezone_offsets = array();
foreach( $chunck as $timezone ){
$tz = new DateTimeZone($timezone);
$timezone_offsets[$timezone] = $tz->getOffset(new DateTime);
}
asort ($timezone_offsets);
$timezone_list = array();
foreach ($timezone_offsets as $timezone => $offset){
$offset_prefix = $offset < 0 ? '-' : '+';
$offset_formatted = gmdate( 'H:i', abs($offset) );
$pretty_offset = "UTC ${offset_prefix}${offset_formatted}";
$timezone_list[$timezone] = "(${pretty_offset}) $timezone";
}
// All the formatting is done, finish and move on to next region
foreach ($timezone_list as $key => $val){
$holder .= '<option value="'.$key.'">'.$val.'</option>';
}
$holder .= '</optgroup>';
++$i;
}
return $holder;
}
echo "<select>".generate_timezone_list()."</select>";
Then all you need to do is echo out what is returned between your html select tags. You'll get a select list something like this:
----- AFRICA -----
(UTC +00:00) Africa/ city name
(UTC +01:00) Africa/ city name
(UTC +02:00) Africa/ city name
(UTC +02:00) Africa/ city name
----- AMERICA -----
(UTC -09:00) America/ city name
(UTC -07:00) America/ city name
(UTC +02:00) America/ city name
(UTC +05:00) America/ city name
And so on...
You are inside vim. To save changes and quit, type:
<esc> :wq <enter>
That means:
:wq
An alternative that stdcall in the comments mentions is:
Z
twice).In Robins's answer ends-with is not supported in xpath 1.0 too.. Only starts-with is supported... So if your condition is not very specific..You can Use like this which worked for me
//*[starts-with(@id,'sometext') and contains(@name,'_text')]`\
If you would like to query all columns
List<Users> list_users = new List<Users>();
MySqlConnection cn = new MySqlConnection("connection");
MySqlCommand cm = new MySqlCommand("select * from users",cn);
try
{
cn.Open();
MySqlDataReader dr = cm.ExecuteReader();
while (dr.Read())
{
list_users.Add(new Users(dr));
}
}
catch { /* error */ }
finally { cn.Close(); }
The User's constructor would do all the "dr.GetString(i)"
The style
property lets you specify values for CSS properties.
The CSS width
property takes a length as its value.
Lengths require units. In quirks mode, browsers tend to assume pixels if provided with an integer instead of a length. Specify units.
e1.style.width = "400px";
Use:
#include <windows.h>
Sleep(sometime_in_millisecs); // Note uppercase S
And here's a small example that compiles with MinGW and does what it says on the tin:
#include <windows.h>
#include <stdio.h>
int main() {
printf( "starting to sleep...\n" );
Sleep(3000); // Sleep three seconds
printf("sleep ended\n");
}
using https://github.com/nicfit/eyeD3
import eyed3
import os
for root, dirs, files in os.walk(folderp):
for file in files:
try:
if file.find(".mp3") < 0:
continue
path = os.path.abspath(os.path.join(root , file))
t = eyed3.load(path)
print(t.tag.title , t.tag.artist)
#print(t.getArtist())
except Exception as e:
print(e)
continue
a MySQL-only solution would be something like this:
SELECT IF (UNIX_TIMESTAMP(`field`) > UNIX_TIMESTAMP(), `field`,'GO AHEAD') as `yourdate`
FROM `table`
Daemon threads are killed ungracefully so any finalizer instructions are not executed. A possible solution is to check is main thread is alive instead of infinite loop.
E.g. for Python 3:
while threading.main_thread().isAlive():
do.you.subthread.thing()
gracefully.close.the.thread()
See Check if the Main Thread is still alive from another thread.
You can also use CASE - my code below checks for both null values and empty strings, and adds a seperator only if there is a value to follow:
SELECT OrganisationName,
'Address' =
CASE WHEN Addr1 IS NULL OR Addr1 = '' THEN '' ELSE Addr1 END +
CASE WHEN Addr2 IS NULL OR Addr2 = '' THEN '' ELSE ', ' + Addr2 END +
CASE WHEN Addr3 IS NULL OR Addr3 = '' THEN '' ELSE ', ' + Addr3 END +
CASE WHEN County IS NULL OR County = '' THEN '' ELSE ', ' + County END
FROM Organisations
Another alternative approach (use of class name property):
N = [2,3,5]
P = 5
type(N).__name__ == 'list'
True
type(P).__name__ == 'int'
True
type(N).__name__ in ('list', 'tuple')
True
No need to import anything.
There are a few techniques for "preloading" here: http://paulirish.com/2009/fighting-the-font-face-fout/
Mostly tricking the browser into downloading the file as fast as possible..
You can also deliver it as a data-uri, which helps a lot. and also you could hide the page content and show it when its ready.
If it's just for viewing data, I use simple foreach or even aspRepeater. For editing I build specialized views and actions. Didn't like webforms GridView inline edit capabilities anyway, this is kinda much clearer and better - one view for viewing and another for edit/new.
In order to copy files from HDFS to the local file system the following command could be run:
hadoop dfs -copyToLocal <input> <output>
<input>
: the HDFS directory path (e.g /mydata) that you want to copy<output>
: the destination directory path (e.g. ~/Documents)Many thanks to @Ciro Santilli answer! I found that his choice for boundary is quite "unhappy" because all of thoose hyphens: in fact, as @Fake Name commented, when you are using your boundary inside request it comes with two more hyphens on front:
Example:
POST / HTTP/1.1
HOST: host.example.com
Cookie: some_cookies...
Connection: Keep-Alive
Content-Type: multipart/form-data; boundary=12345
--12345
Content-Disposition: form-data; name="sometext"
some text that you wrote in your html form ...
--12345
Content-Disposition: form-data; name="name_of_post_request" filename="filename.xyz"
content of filename.xyz that you upload in your form with input[type=file]
--12345
Content-Disposition: form-data; name="image" filename="picture_of_sunset.jpg"
content of picture_of_sunset.jpg ...
--12345--
I found on this w3.org page that is possible to incapsulate multipart/mixed header in a multipart/form-data, simply choosing another boundary string inside multipart/mixed and using that one to incapsulate data. At the end, you must "close" all boundary used in FILO order to close the POST request (like:
POST / HTTP/1.1
...
Content-Type: multipart/form-data; boundary=12345
--12345
Content-Disposition: form-data; name="sometext"
some text sent via post...
--12345
Content-Disposition: form-data; name="files"
Content-Type: multipart/mixed; boundary=abcde
--abcde
Content-Disposition: file; file="picture.jpg"
content of jpg...
--abcde
Content-Disposition: file; file="test.py"
content of test.py file ....
--abcde--
--12345--
Take a look at the link above.
Try this:
document.addEventListener("keydown", KeyCheck); //or however you are calling your method
function KeyCheck(event)
{
var KeyID = event.keyCode;
switch(KeyID)
{
case 8:
alert("backspace");
break;
case 46:
alert("delete");
break;
default:
break;
}
}
INSERT INTO prices (group, id, price)
SELECT 7, articleId, 1.50 FROM article WHERE name LIKE 'ABC%'
To add yonix’s comment as an answer, the old fb://page/…
URL no longer works. Apparently it was replaced by fb://profile/…
, even though a page is not a profile.
Expressions always evaluate to a value, statements don't.
e.g.
variable declaration and assignment are statements because they do not return a value
const list = [1,2,3];
Here we have two operands - a variable 'sum' on the left and an expression on the right. The whole thing is a statement, but the bit on the right is an expression as that piece of code returns a value.
const sum = list.reduce((a, b)=> a+ b, 0);
Function calls, arithmetic and boolean operations are good examples of expressions.
Expressions are often part of a statement.
The distinction between the two is often required to indicate whether we require a pice of code to return a value.
Java provides two interesting Boolean operators not found in most other computer languages. These secondary versions of AND and OR are known as short-circuit logical operators. As you can see from the preceding table, the OR operator results in true when A is true, no matter what B is.
Similarly, the AND operator results in false when A is false, no matter what B is. If you use the ||
and &&
forms, rather than the |
and &
forms of these operators, Java will not bother to evaluate the right-hand operand alone. This is very useful when the right-hand operand depends on the left one being true or false in order to function properly.
For example, the following code fragment shows how you can take advantage of short-circuit logical evaluation to be sure that a division operation will be valid before evaluating it:
if ( denom != 0 && num / denom >10)
Since the short-circuit form of AND (&&
) is used, there is no risk of causing a run-time exception from dividing by zero. If this line of code were written using the single &
version of AND, both sides would have to be evaluated, causing a run-time exception when denom
is zero.
It is standard practice to use the short-circuit forms of AND and OR in cases involving Boolean logic, leaving the single-character versions exclusively for bitwise operations. However, there are exceptions to this rule. For example, consider the following statement:
if ( c==1 & e++ < 100 ) d = 100;
Here, using a single &
ensures that the increment operation will be applied to e
whether c
is equal to 1 or not.
This is supposed to print the ASCII value of the character, as %d
is the escape sequence for an integer. So the value given as argument of printf
is taken as integer when printed.
char ch = 'a';
printf("%d", ch);
Same holds for printf("%d", '\0');
, where the NULL character is interpreted as the 0 integer.
Finally, sizeof('\n')
is 4 because in C, this notation for characters stands for the corresponding ASCII integer. So '\n' is the same as 10 as an integer.
It all depends on the interpretation you give to the bytes.
for use sample touch listener just you need this code
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
ClipData data = ClipData.newPlainText("", "");
View.DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(view);
view.startDrag(data, shadowBuilder, null, 0);
return true;
}
I met the same problem.
First delete build
folder from project location (You can access it via android studio or using explorer), then build
the project.
You could try using float:left;
or display:inline-block;
.
Both of these will change the element's behaviour from defaulting to 100% width to defaulting to the natural width of its contents.
However, note that they'll also both have an impact on the layout of the surrounding elements as well. I would suggest that inline-block
will have less of an impact though, so probably best to try that first.
You should use this example with AUTHID CURRENT_USER :
CREATE OR REPLACE PROCEDURE Create_sequence_for_tab (VAR_TAB_NAME IN VARCHAR2)
AUTHID CURRENT_USER
IS
SEQ_NAME VARCHAR2 (100);
FINAL_QUERY VARCHAR2 (100);
COUNT_NUMBER NUMBER := 0;
cur_id NUMBER;
BEGIN
SEQ_NAME := 'SEQ_' || VAR_TAB_NAME;
SELECT COUNT (*)
INTO COUNT_NUMBER
FROM USER_SEQUENCES
WHERE SEQUENCE_NAME = SEQ_NAME;
DBMS_OUTPUT.PUT_LINE (SEQ_NAME || '>' || COUNT_NUMBER);
IF COUNT_NUMBER = 0
THEN
--DBMS_OUTPUT.PUT_LINE('DROP SEQUENCE ' || SEQ_NAME);
-- EXECUTE IMMEDIATE 'DROP SEQUENCE ' || SEQ_NAME;
-- ELSE
SELECT 'CREATE SEQUENCE COMPTABILITE.' || SEQ_NAME || ' START WITH ' || ROUND (DBMS_RANDOM.VALUE (100000000000, 999999999999), 0) || ' INCREMENT BY 1'
INTO FINAL_QUERY
FROM DUAL;
DBMS_OUTPUT.PUT_LINE (FINAL_QUERY);
cur_id := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.parse (cur_id, FINAL_QUERY, DBMS_SQL.v7);
DBMS_SQL.CLOSE_CURSOR (cur_id);
-- EXECUTE IMMEDIATE FINAL_QUERY;
END IF;
COMMIT;
END;
/
You can use $addToSet with the aggregation framework to count distinct objects.
For example:
db.collectionName.aggregate([{
$group: {_id: null, uniqueValues: {$addToSet: "$fieldName"}}
}])
Am going to try and add value to this very good question and to build on @BrittonKerin's question in one of the comments under @David Wolever's fantastic answer. Wanted to share here because I had the same challenge as @BrittonKerin and I got something working (i.e. just want to run a piece of code only IF the table doesn't exist).
# for completeness lets do the routine thing of connections and cursors
conn = sqlite3.connect(db_file, timeout=1000)
cursor = conn.cursor()
# get the count of tables with the name
tablename = 'KABOOM'
cursor.execute("SELECT count(name) FROM sqlite_master WHERE type='table' AND name=? ", (tablename, ))
print(cursor.fetchone()) # this SHOULD BE in a tuple containing count(name) integer.
# check if the db has existing table named KABOOM
# if the count is 1, then table exists
if cursor.fetchone()[0] ==1 :
print('Table exists. I can do my custom stuff here now.... ')
pass
else:
# then table doesn't exist.
custRET = myCustFunc(foo,bar) # replace this with your custom logic
Combining Max's answer and Shriramana Sharma's mailing list post, I built a small working example for loading a mywindow.ui
file containing a QMainWindow
(so just choose to create a Main Window in Qt Designer's File-New
dialog).
This is the code that loads it:
import sys
from PyQt4 import QtGui, uic
class MyWindow(QtGui.QMainWindow):
def __init__(self):
super(MyWindow, self).__init__()
uic.loadUi('mywindow.ui', self)
self.show()
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
window = MyWindow()
sys.exit(app.exec_())
Google introduced in-app update api. Using that we can ask user to update app inside the application. if user accept we can directly download latest app and install without redirect to playstore. for more details please refer the below link
You don't use ls to get a file's permission information. You use the stat command. It will give you the numerical values you want. The "Unix Way" says that you should invent your own script using ls (or 'echo *') and stat and whatever else you like to give the information in the format you desire.
An ellipsis is three periods in a row...
The TextView will use an ellipsis when it cannot expand to show all of its text. The attribute ellipsized
sets the position of the three dots if it is necessary.
If you are working in XAMPP and your query of drop database doesn't work then you can go to the operations tag where you find the column (drop the database(drop)), click that button and your database will be deleted.
Here is the function I use to prevent chrome and opera from showing the invalid input dialog even when using novalidate.
window.submittingForm = false;
$('input[novalidate]').bind('invalid', function(e) {
if(!window.submittingForm){
window.submittingForm = true;
$(e.target.form).submit();
setTimeout(function(){window.submittingForm = false;}, 100);
}
e.preventDefault();
return false;
});
You are triggering the event before the event is even bound.
Just move the triggering
of the event to after attaching the event.
$(document).ready(function() {
$("#checkbox_div input:radio").click(function() {
alert("clicked");
});
$("input:radio:first").prop("checked", true).trigger("click");
});
I tried this command to display the list of files in the directory.
dir /s /b > List.txt
In the file it displays the list below.
C:\Program Files (x86)\Cisco Systems\Cisco Jabber\XmppMgr.dll
C:\Program Files (x86)\Cisco Systems\Cisco Jabber\XmppSDK.dll
C:\Program Files (x86)\Cisco Systems\Cisco Jabber\accessories\Plantronics
C:\Program Files (x86)\Cisco Systems\Cisco Jabber\accessories\SennheiserJabberPlugin.dll
C:\Program Files (x86)\Cisco Systems\Cisco Jabber\accessories\Logitech\LogiUCPluginForCisco
C:\Program Files (x86)\Cisco Systems\Cisco Jabber\accessories\Logitech\LogiUCPluginForCisco\lucpcisco.dll
What is want to do is only to display sub-directory not the full directory path.
Just like this:
Cisco Jabber\XmppMgr.dll Cisco Jabber\XmppSDK.dll
Cisco Jabber\accessories\JabraJabberPlugin.dll
Cisco Jabber\accessories\Logitech
Cisco Jabber\accessories\Plantronics
Cisco Jabber\accessories\SennheiserJabberPlugin.dll
My site faces same issue too.
Using Facebook debug tool is no help at all. Fetch new data but not IMAGE CACHE.
I forced facebook to clear IMAGE CACHE by add www. into image url. In your case is remove www. and config web server redirect.
add/remove www. in image url should solve the problem
From git checkout
's usage:
-2, --ours checkout our version for unmerged files
-3, --theirs checkout their version for unmerged files
-m, --merge perform a 3-way merge with the new branch
When resolving merge conflicts, you can do git checkout --theirs some_file
, and git checkout --ours some_file
to reset the file to the current version and the incoming versions respectively.
If you've done git checkout --ours some_file
or git checkout --theirs some_file
and would like to reset the file to the 3-way merge version of the file, you can do git checkout --merge some_file
.
Look at the following solution. The stream handler should be the thing doing the colouring, then you have the option of colouring words rather than just the whole line (with the Formatter).
http://plumberjack.blogspot.com/2010/12/colorizing-logging-output-in-terminals.html
Install PIL(Python Image Library) :
then:
from PIL import Image
myImage = Image.open("your_image_here");
myImage.show();
Re-migrate approach for a cleaner plate.
This can painlessly be done IF other apps do not foreign key models from the app to be renamed. Check and make sure their migration files don't list any migrations from this one.
delete from auth_permission where content_type_id in (select id from django_content_type where app_label = '<OldAppName>')
delete from django_content_type where app_label = '<OldAppName>'
views.py
, urls.py
, 'manage.py' , and settings.py
files.delete from django_migrations where app = '<OldAppName>'
models.py
's Meta Class has app_name
listed, make sure to rename that too (mentioned by @will).static
or templates
folders inside your app, you'll also need to rename those. For example, rename old_app/static/old_app
to new_app/static/new_app
.A HTTP multipart request is a HTTP request that HTTP clients construct to send files and data over to a HTTP Server. It is commonly used by browsers and HTTP clients to upload files to the server.
I would say that you should put styles that won't change into a regular style
attribute, and conditional/scope styles into an ng-style
attribute. Also, string keys are not necessary. For hyphen-delimited CSS keys, use camelcase.
<div ng-style="{backgroundColor: data.backgroundCol}" style="width:20px; height:20px; margin-top:10px; border:solid 1px black;"></div>
Use the constructor that allows you to specify the year, month, day, hours, minutes, and seconds:
var dateNow = DateTime.Now;
var date = new DateTime(dateNow.Year, dateNow.Month, dateNow.Day, 4, 5, 6);
MySQL Workbench worked like a charm.
I just backed up database structure to SQL script and used it in "Create EER Model From SQL Script" of MWB 5.2.37 for Windows.
Generate package.json without having it ask any questions. I ran the below comment in Mac and Windows under the directory that I would like to create package.json and it works
$ npm init -y
Wrote to C:\workspace\package.json:
{
"name": "workspace",
"version": "1.0.0",
"description": "",
"main": "builder.js",
"dependencies": {
"jasmine-spec-reporter": "^4.2.1",
"selenium-webdriver": "^4.0.0-alpha.5"
},
"devDependencies": {},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC"
}
I believe you are looking for -maxdepth 1
.
Check \httpdocs\bootstrap\cache\config.php file in plesk to see if there are some unwanted paths.
I solved it by upgrading my gradle dependency in the android/build.gradle file: classpath 'com.android.tools.build:gradle:3.3.1' (I was previously on version 3.2.
If you're running on Ubuntu, you may also need to configure Apparmor to allow MySQL to write to your folder, e.g. here's my configuration:
Add this line to file /etc/apparmor.d/usr.sbin.mysqld :
/var/lib/mysql-files/* rw
Then add these 2 config lines to /etc/mysql/my.cnf sections:
[client]
loose-local-infile = 1
[mysqld]
secure-file-priv = ""
Here's my SQL:
select id from blahs into outfile '/var/lib/mysql-files/blahs';
It worked for me. Good luck!
You can do this using a group by:
select id, addressCode
from t
group by id, addressCode
having min(address) <> max(address)
Another way of writing this may seem clearer, but does not perform as well:
select id, addressCode
from t
group by id, addressCode
having count(distinct address) > 1
You can double click directly on the .cs file representing your form in the Solution Explorer :
This will open Form1.cs [Design]
, which contains the drag&drop controls.
If you are directly in the code behind (The file named Form1.cs
, without "[Design]"), you can press Shift + F7 (or only F7 depending on the project type) instead to open it.
From the design view, you can switch back to the Code Behind by pressing F7.
Instead of giving:
./SQLEXPRESS //in the Server Name
I put this:
.\SQLEXPRESS //which solved my problem
You can change that default behavior in your .gitconfig
, for example:
[push]
default = current
To check the current settings, run:
git config --global --get push.default
I'm using Ubuntu 16.04 and PHP 5.6.20
After too many problems, the below steps solved this for me:
find php.ini
path via phpinfo()
uncomment
extension=php_pdo_mysql.dll
add this line
extension=pdo_mysql.so
then run
sudo apt-get install php-mysql
To download some specific source or javadoc we need to include the GroupIds - Its a comma separated value as shown below
mvn dependency:sources -DincludeGroupIds=com.jcraft,org.testng -Dclassifier=sources
Note that the classifier are not comma separated, to download the javadoc we need to run the above command one more time with the classifier as javadoc
mvn dependency:sources -DincludeGroupIds=com.jcraft,org.testng -Dclassifier=javadoc
You don't have to use Javascript to do this. Using plain-old css:
div.blah {
position:absolute;
top: 0; /*[wherever you want it]*/
left:0; /*[wherever you want it]*/
}
If you feel you must use javascript, or are trying to do this dynamically Using JQuery, this affects all divs of class "blah":
var blahclass = $('.blah');
blahclass.css('position', 'absolute');
blahclass.css('top', 0); //or wherever you want it
blahclass.css('left', 0); //or wherever you want it
Alternatively, if you must use regular old-javascript you can grab by id
var domElement = document.getElementById('myElement');// don't go to to DOM every time you need it. Instead store in a variable and manipulate.
domElement.style.position = "absolute";
domElement.style.top = 0; //or whatever
domElement.style.left = 0; // or whatever
The following code snippet resolved my issue. Thought this might be useful to others.
var strEnc = this.$.txtSearch.value.replace(/\s/g, "-");_x000D_
strEnc = strEnc.replace(/-/g, " ");
_x000D_
Rather using default encodeURIComponent
my first line of code is converting all spaces
into hyphens
using regex pattern /\s\g
and the following line just does the reverse, i.e. converts all hyphens
back to spaces
using another regex pattern /-/g
. Here /g
is actually responsible for finding all
matching characters.
When I am sending this value to my Ajax call, it traverses as normal spaces
or simply %20
and thus gets rid of double-encoding
.
Update PHP 7.4
Curly brace access syntax is deprecated since PHP 7.4
Update 2019
Moving on to the best practices of OOPS, @MrTrick's answer must be marked as correct, although my answer provides a hacked solution its not the best method.
Simply iterate its using {}
Example:
$videos{0}->id
This way your object is not destroyed and you can easily iterate through object.
For PHP 5.6 and below use this
$videos{0}['id']
Both array() and the stdClass objects can be accessed using the
current()
key()
next()
prev()
reset()
end()
functions.
So, if your object looks like
object(stdClass)#19 (3) {
[0]=>
object(stdClass)#20 (22) {
["id"]=>
string(1) "123"
etc...
Then you can just do;
$id = reset($obj)->id; //Gets the 'id' attr of the first entry in the object
If you need the key for some reason, you can do;
reset($obj); //Ensure that we're at the first element
$key = key($obj);
Hope that works for you. :-) No errors, even in super-strict mode, on PHP 5.4
2022 Update:
After PHP 7.4, using current()
, end()
, etc functions on objects is deprecated.
In newer versions of PHP, use the ArrayIterator class:
$objIterator = new ArrayIterator($obj);
$id = $objIterator->current()->id; // Gets the 'id' attr of the first entry in the object
$key = $objIterator->key(); // and gets the key
In my case, on commenting out the
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
in the web.config file was throwing "Failed to add a service. Service metadata may not be accessible. Make sure your service is running and exposing metadata".
"Stack Me 123 Heppa1 oeu".toCharArray()
?
Use the escape
function of querystring
. It generates a URL safe string.
var escaped_str = require('querystring').escape('Photo on 30-11-12 at 8.09 AM #2.jpg');
console.log(escaped_str);
// prints 'Photo%20on%2030-11-12%20at%208.09%20AM%20%232.jpg'
As per latest api docs:
$(document).ready(function() {
$('#example').dataTable({
"order": []
});
});
It is because you forgot to pass in event
into the click
function:
$('.menuOption').on('click', function (e) { // <-- the "e" for event
e.preventDefault(); // now it'll work
var categories = $(this).attr('rel');
$('.pages').hide();
$(categories).fadeIn();
});
On a side note, e
is more commonly used as opposed to the word event
since Event
is a global variable in most browsers.
Another thing to consider is that, since there is no multiple inheritance, if you want a class to be able to implement/inherit from your interface/abstract class, but inherit from another base class, use an interface.
For me it works:
document.getElementById("checkyear").value = "1";
alert(document.getElementById("checkyear").value);
Maybe your JS is not executed and you need to add a function() {} around it all.
I was using a special character in my DB password - wrapping the DBPassword option in /etc/zabbix/zabbix_server.conf
and doing sudo service zabbix-server restart
got me back up and running.
Not Working
DBPassword=MyString?
Working
DBPassword='MyString?'
I was getting this error because the project I was working on was developed on php 5.6 and after install, the project was unable to run on php7.1.
Just for anyone that uses Vagrant with ubuntu/nginx, in the nginx directory(/etc/nginx/), there is a directory named "sites-available" which contains a file named like the url configured for the vagrant maschine. In my case was homestead.app. Within this file there is a line that says something like
fastcgi_pass unix:/var/run/php/php7.1-fpm.sock;
There you can change the php version to the desired for that particular site.
Googled this but wasnt really able to find a simple answer that said where to look and what to change.
Hope that this helps anyone. Thanks.
Most html tags have some default properties. A css reset will help you change the default properties.
What I usually do is:
{ padding: 0; margin: 0; font-face:Arial; }
Although the font is up to you!
Please check below example to get output variable value by executing a stored procedure.
DECLARE @return_value int,
@Ouput1 int,
@Ouput2 int,
@Ouput3 int
EXEC @return_value = 'Your Sp Name'
@Param1 = value1,
@Ouput1 = @Ouput1 OUTPUT,
@Ouput2 = @Ouput2 OUTPUT,
@Ouput3 = @Ouput3 OUTPUT
SELECT @Ouput1 as N'@Ouput1',
@Ouput2 as N'@Ouput2',
@Ouput3 as N'@Ouput3'
This issue is due to ArrayList variable not being instantiated. Need to declare "recordings" variable like following, that should solve the issue;
ArrayList<String> recordings = new ArrayList<String>();
this calls default constructor and assigns empty string to the recordings variable so that it is not null anymore.
SIMPLE..
First check with the closing tag of project. It should be placed after all the dependency tags are closed.This way I solved my error. --Sush happy coding :)
Remove all listeners in element by one js line:
element.parentNode.innerHTML += '';
I made a small tool providing similar functionality, without using xclip or xsel. stdout
is copied to a clipboard and can be pasted again in the terminal. See:
https://sourceforge.net/projects/commandlinecopypaste/
Note, that this tool does not need an X-session. The clipboard can just be used within the terminal and has not to be pasted by Ctrl+V or middle-mouse-click into other X-windows.
Since you have access to the .NET library, you could access the OSVersion
property of the System.Environment
class to get this information. For the version number, there is the Version
property.
For example,
PS C:\> [System.Environment]::OSVersion.Version
Major Minor Build Revision
----- ----- ----- --------
6 1 7601 65536
Details of Windows versions can be found here.
you can try something like this:
import java.io.*;
import java.util.*;
class FindFile
{
public void findFile(String name,File file)
{
File[] list = file.listFiles();
if(list!=null)
for (File fil : list)
{
if (fil.isDirectory())
{
findFile(name,fil);
}
else if (name.equalsIgnoreCase(fil.getName()))
{
System.out.println(fil.getParentFile());
}
}
}
public static void main(String[] args)
{
FindFile ff = new FindFile();
Scanner scan = new Scanner(System.in);
System.out.println("Enter the file to be searched.. " );
String name = scan.next();
System.out.println("Enter the directory where to search ");
String directory = scan.next();
ff.findFile(name,new File(directory));
}
}
Here is the output:
J:\Java\misc\load>java FindFile
Enter the file to be searched..
FindFile.java
Enter the directory where to search
j:\java\
FindFile.java Found in->j:\java\misc\load
<?php
header("Location: index.html");
?>
Just make sure nothing is actually written to the page prior to this code, or it won't work.
I converted a simple NetBeans 8 Java FXML application to the Maven-driven one. Then I got problems, because the getResource()
methods weren't able to find the .fxml files. In mine original application the fxmls were scattered through the package tree - each beside its controller class file.
After I made Clean and build in NetBeans, I checked the result .jar in the target folder - the .jar didn't contain any fxml at all. All the fxmls were strangely disappeared.
Then I put all fxmls into the resources/fxml folder and set the getResource method parameters accordingly, for example: FXMLLoader(App.class.getClassLoader().getResource("fxml/ObjOverview.fxml"));
In this case everything went OK. The fxml folder appeared int the .jar's root and it contained all my fxmls. The program was working as expected.
Actually there are three ways to enable full screnn, visit : https://developer.android.com/training/system-ui/immersive
but if you wanna get full screen when the activity is opened, just put this code in your_activity.java
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if (hasFocus) {
hideSystemUI();
}
}
private void hideSystemUI() {
// Enables regular immersive mode.
// For "lean back" mode, remove SYSTEM_UI_FLAG_IMMERSIVE.
// Or for "sticky immersive," replace it with SYSTEM_UI_FLAG_IMMERSIVE_STICKY
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(
View.SYSTEM_UI_FLAG_IMMERSIVE
// Set the content to appear under the system bars so that the
// content doesn't resize when the system bars hide and show.
| View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
// Hide the nav bar and status bar
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN);
}
// Shows the system bars by removing all the flags
// except for the ones that make the content appear under the system bars.
private void showSystemUI() {
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}
Had the same problem on one of the test servers running Ubuntu
under root
. Then created a new user using useradd -m myuser
and installed everything (nvm
, node
, packages) as myuser
. Now it's working fine.
select COUNT(*) from ALL_ALL_TABLES where OWNER='<Database-name>';
.....
you can use the remove()
function of the example below
and build table again with table head, and table body
$("#table_id thead").remove();
$("#table_id tbody").remove();
OS Mojave 10.14., Python 3.6
Using pip install graphviz
had good feedback in terminal, but lead to this error when I tried to make a graph in a Jupyter notebook. I then ran brew install graphviz
, which gave an error in terminal. Then I ran conda install graphviz
and the graph worked.
From @Leighton's comment: pip only gets path problem same as yours and conda only gets import error.
The only thing that worked for me is to add the following in your plist
<key>UIStatusBarHidden</key>
<true/>
<key>UIViewControllerBasedStatusBarAppearance</key>
<false/>
As a quick example (using a slightly cleaner method than the potentially duplicate question):
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(range(10))
ax.set_xlabel('X-axis')
ax.set_ylabel('Y-axis')
ax.spines['bottom'].set_color('red')
ax.spines['top'].set_color('red')
ax.xaxis.label.set_color('red')
ax.tick_params(axis='x', colors='red')
plt.show()
[t.set_color('red') for t in ax.xaxis.get_ticklines()]
[t.set_color('red') for t in ax.xaxis.get_ticklabels()]
By psql --help
, when you didn't set options for database name (without -d
option) it would be your username, if you didn't do -U
, the database username would be your username too, etc.
But by initdb
(to create the first database) command it doesn't have your username as any database name. It has a database named postgres
. The first database is always created by the initdb command when the data storage area is initialized. This database is called postgres.
So if you don't have another database named your username, you need to do psql -d postgres
for psql command to work. And it seems it gives -d
option by default, psql postgres
also works.
If you have created another database names the same to your username, (it should be done with createdb
) then you may command psql
only. And it seems the first database user name sets as your machine username by brew.
psql -d <first database name> -U <first database user name>
or,
psql -d postgres -U <your machine username>
psql -d postgres
would work by default.
I fixed this issue by adding following code in my file.
@Component
@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
XML configuration -
<listener>
<listener-class>
org.springframework.web.context.request.RequestContextListener
</listener-class>
</listener>
Above we can do using Java configuration -
@Configuration
@WebListener
public class MyRequestContextListener extends RequestContextListener {
}
How to add a RequestContextListener with no-xml configuration?
I am using spring version 5.1.4.RELEASE and no need to add below changes in pom.
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>3.2.10</version>
</dependency>
I wrote a (recursive) function to delete any row based on its primary key. I wrote this because I did not want to create my constraints as "on delete cascade". I wanted to be able to delete complex sets of data (as a DBA) but not allow my programmers to be able to cascade delete without thinking through all of the repercussions.
I'm still testing out this function, so there may be bugs in it -- but please don't try it if your DB has multi column primary (and thus foreign) keys. Also, the keys all have to be able to be represented in string form, but it could be written in a way that doesn't have that restriction. I use this function VERY SPARINGLY anyway, I value my data too much to enable the cascading constraints on everything.
Basically this function is passed in the schema, table name, and primary value (in string form), and it will start by finding any foreign keys on that table and makes sure data doesn't exist-- if it does, it recursively calls itsself on the found data. It uses an array of data already marked for deletion to prevent infinite loops. Please test it out and let me know how it works for you. Note: It's a little slow.
I call it like so:
select delete_cascade('public','my_table','1');
create or replace function delete_cascade(p_schema varchar, p_table varchar, p_key varchar, p_recursion varchar[] default null)
returns integer as $$
declare
rx record;
rd record;
v_sql varchar;
v_recursion_key varchar;
recnum integer;
v_primary_key varchar;
v_rows integer;
begin
recnum := 0;
select ccu.column_name into v_primary_key
from
information_schema.table_constraints tc
join information_schema.constraint_column_usage AS ccu ON ccu.constraint_name = tc.constraint_name and ccu.constraint_schema=tc.constraint_schema
and tc.constraint_type='PRIMARY KEY'
and tc.table_name=p_table
and tc.table_schema=p_schema;
for rx in (
select kcu.table_name as foreign_table_name,
kcu.column_name as foreign_column_name,
kcu.table_schema foreign_table_schema,
kcu2.column_name as foreign_table_primary_key
from information_schema.constraint_column_usage ccu
join information_schema.table_constraints tc on tc.constraint_name=ccu.constraint_name and tc.constraint_catalog=ccu.constraint_catalog and ccu.constraint_schema=ccu.constraint_schema
join information_schema.key_column_usage kcu on kcu.constraint_name=ccu.constraint_name and kcu.constraint_catalog=ccu.constraint_catalog and kcu.constraint_schema=ccu.constraint_schema
join information_schema.table_constraints tc2 on tc2.table_name=kcu.table_name and tc2.table_schema=kcu.table_schema
join information_schema.key_column_usage kcu2 on kcu2.constraint_name=tc2.constraint_name and kcu2.constraint_catalog=tc2.constraint_catalog and kcu2.constraint_schema=tc2.constraint_schema
where ccu.table_name=p_table and ccu.table_schema=p_schema
and TC.CONSTRAINT_TYPE='FOREIGN KEY'
and tc2.constraint_type='PRIMARY KEY'
)
loop
v_sql := 'select '||rx.foreign_table_primary_key||' as key from '||rx.foreign_table_schema||'.'||rx.foreign_table_name||'
where '||rx.foreign_column_name||'='||quote_literal(p_key)||' for update';
--raise notice '%',v_sql;
--found a foreign key, now find the primary keys for any data that exists in any of those tables.
for rd in execute v_sql
loop
v_recursion_key=rx.foreign_table_schema||'.'||rx.foreign_table_name||'.'||rx.foreign_column_name||'='||rd.key;
if (v_recursion_key = any (p_recursion)) then
--raise notice 'Avoiding infinite loop';
else
--raise notice 'Recursing to %,%',rx.foreign_table_name, rd.key;
recnum:= recnum +delete_cascade(rx.foreign_table_schema::varchar, rx.foreign_table_name::varchar, rd.key::varchar, p_recursion||v_recursion_key);
end if;
end loop;
end loop;
begin
--actually delete original record.
v_sql := 'delete from '||p_schema||'.'||p_table||' where '||v_primary_key||'='||quote_literal(p_key);
execute v_sql;
get diagnostics v_rows= row_count;
--raise notice 'Deleting %.% %=%',p_schema,p_table,v_primary_key,p_key;
recnum:= recnum +v_rows;
exception when others then recnum=0;
end;
return recnum;
end;
$$
language PLPGSQL;
Why don't you just save/serve the CSS file as UTF-8?
nav a:hover:after {
content: "?";
}
If that's not good enough, and you want to keep it all-ASCII:
nav a:hover:after {
content: "\2193";
}
The general format for a Unicode character inside a string is \000000
to \FFFFFF
– a backslash followed by six hexadecimal digits. You can leave out leading 0
digits when the Unicode character is the last character in the string or when you add a space after the Unicode character. See the spec below for full details.
Relevant part of the CSS2 spec:
Third, backslash escapes allow authors to refer to characters they cannot easily put in a document. In this case, the backslash is followed by at most six hexadecimal digits (0..9A..F), which stand for the ISO 10646 ([ISO10646]) character with that number, which must not be zero. (It is undefined in CSS 2.1 what happens if a style sheet does contain a character with Unicode codepoint zero.) If a character in the range [0-9a-fA-F] follows the hexadecimal number, the end of the number needs to be made clear. There are two ways to do that:
- with a space (or other white space character): "\26 B" ("&B"). In this case, user agents should treat a "CR/LF" pair (U+000D/U+000A) as a single white space character.
- by providing exactly 6 hexadecimal digits: "\000026B" ("&B")
In fact, these two methods may be combined. Only one white space character is ignored after a hexadecimal escape. Note that this means that a "real" space after the escape sequence must be doubled.
If the number is outside the range allowed by Unicode (e.g., "\110000" is above the maximum 10FFFF allowed in current Unicode), the UA may replace the escape with the "replacement character" (U+FFFD). If the character is to be displayed, the UA should show a visible symbol, such as a "missing character" glyph (cf. 15.2, point 5).
- Note: Backslash escapes are always considered to be part of an identifier or a string (i.e., "\7B" is not punctuation, even though "{" is, and "\32" is allowed at the start of a class name, even though "2" is not).
The identifier "te\st" is exactly the same identifier as "test".
Comprehensive list: Unicode Character 'DOWNWARDS ARROW' (U+2193).
Try setting an implicit wait of maybe 10 seconds.
gmail.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
Or set an explicit wait. An explicit waits is code you define to wait for a certain condition to occur before proceeding further in the code. In your case, it is the visibility of the password input field. (Thanks to ainlolcat's comment)
WebDriver gmail= new ChromeDriver();
gmail.get("https://www.gmail.co.in");
gmail.findElement(By.id("Email")).sendKeys("abcd");
gmail.findElement(By.id("next")).click();
WebDriverWait wait = new WebDriverWait(gmail, 10);
WebElement element = wait.until(
ExpectedConditions.visibilityOfElementLocated(By.id("Passwd")));
gmail.findElement(By.id("Passwd")).sendKeys("xyz");
Explanation: The reason selenium can't find the element is because the id of the password input field is initially Passwd-hidden. After you click on the "Next" button, Google first verifies the email address entered and then shows the password input field (by changing the id from Passwd-hidden to Passwd). So, when the password field is still hidden (i.e. Google is still verifying the email id), your webdriver starts searching for the password input field with id Passwd which is still hidden. And hence, an exception is thrown.
Google maintains a server infrastructure that grows dynamically with the ever increasing internet demands. This link by google describes the method to remain up to date with their IP address ranges.
When you need the literal IP addresses for Google Apps mail servers, start by using one of the common DNS lookup commands (nslookup, dig, host) to retrieve the SPF records for the domain _spf.google.com, like so:
nslookup -q=TXT _spf.google.com 8.8.8.8
This returns a list of the domains included in Google's SPF record, such as: _netblocks.google.com, _netblocks2.google.com, _netblocks3.google.com
Now look up the DNS records associated with those domains, one at a time, like so:
nslookup -q=TXT _netblocks.google.com 8.8.8.8
nslookup -q=TXT _netblocks2.google.com 8.8.8.8
nslookup -q=TXT _netblocks3.google.com 8.8.8.8
The results of these commands contain the current range of addresses.
Other people have already answered you how to rollback, but you also asked how you could identify the version number of a migration.
rake db:migrate:status
gives a list of your migrations version, name and status (up or down)/db/migrate
You're talking about histograms, but this doesn't quite make sense. Histograms and bar charts are different things. An histogram would be a bar chart representing the sum of values per year, for example. Here, you just seem to be after bars.
Here is a complete example from your data that shows a bar of for each required value at each date:
import pylab as pl
import datetime
data = """0 14-11-2003
1 15-03-1999
12 04-12-2012
33 09-05-2007
44 16-08-1998
55 25-07-2001
76 31-12-2011
87 25-06-1993
118 16-02-1995
119 10-02-1981
145 03-05-2014"""
values = []
dates = []
for line in data.split("\n"):
x, y = line.split()
values.append(int(x))
dates.append(datetime.datetime.strptime(y, "%d-%m-%Y").date())
fig = pl.figure()
ax = pl.subplot(111)
ax.bar(dates, values, width=100)
ax.xaxis_date()
You need to parse the date with strptime
and set the x-axis to use dates (as described in this answer).
If you're not interested in having the x-axis show a linear time scale, but just want bars with labels, you can do this instead:
fig = pl.figure()
ax = pl.subplot(111)
ax.bar(range(len(dates)), values)
EDIT: Following comments, for all the ticks, and for them to be centred, pass the range to set_ticks
(and move them by half the bar width):
fig = pl.figure()
ax = pl.subplot(111)
width=0.8
ax.bar(range(len(dates)), values, width=width)
ax.set_xticks(np.arange(len(dates)) + width/2)
ax.set_xticklabels(dates, rotation=90)
I would rather put my answer in How to flush output of print function? or in Python's print function that flushes the buffer when it's called?, but since they were marked as duplicates of this one (what I do not agree), I'll answer it here.
Since Python 3.3, print() supports the keyword argument "flush" (see documentation):
print('Hello World!', flush=True)
I recently published a project that allows PHP to obtain and interact with a real Bash shell. Get it here: https://github.com/merlinthemagic/MTS The shell has a pty (pseudo terminal device, same as you would have in i.e. a ssh session), and you can get the shell as root if desired. Not sure you need root to execute your script, but given you mention sudo it is likely.
After downloading you would simply use the following code:
$shell = \MTS\Factories::getDevices()->getLocalHost()->getShell('bash', true);
$return1 = $shell->exeCmd('/path/to/osascript myscript.scpt');
You can do
orig.update(extra)
or, if you don't want orig
to be modified, make a copy first:
dest = dict(orig) # or orig.copy()
dest.update(extra)
Note that if extra and orig have overlapping keys, the final value will be taken from extra. For example,
>>> d1 = {1: 1, 2: 2}
>>> d2 = {2: 'ha!', 3: 3}
>>> d1.update(d2)
>>> d1
{1: 1, 2: 'ha!', 3: 3}
if (!$("#select").find("option:selected").length){
//
}
Calling erase will invalidate iterators, you could use:
void erase(std::vector<int>& myNumbers_in, int number_in)
{
std::vector<int>::iterator iter = myNumbers_in.begin();
while (iter != myNumbers_in.end())
{
if (*iter == number_in)
{
iter = myNumbers_in.erase(iter);
}
else
{
++iter;
}
}
}
Or you could use std::remove_if together with a functor and std::vector::erase:
struct Eraser
{
Eraser(int number_in) : number_in(number_in) {}
int number_in;
bool operator()(int i) const
{
return i == number_in;
}
};
std::vector<int> myNumbers;
myNumbers.erase(std::remove_if(myNumbers.begin(), myNumbers.end(), Eraser(number_in)), myNumbers.end());
Instead of writing your own functor in this case you could use std::remove:
std::vector<int> myNumbers;
myNumbers.erase(std::remove(myNumbers.begin(), myNumbers.end(), number_in), myNumbers.end());
In C++11 you could use a lambda instead of a functor:
std::vector<int> myNumbers;
myNumbers.erase(std::remove_if(myNumbers.begin(), myNumbers.end(), [number_in](int number){ return number == number_in; }), myNumbers.end());
In C++17 std::experimental::erase and std::experimental::erase_if are also available, in C++20 these are (finally) renamed to std::erase and std::erase_if (note: in Visual Studio 2019 you'll need to change your C++ language version to the latest experimental version for support):
std::vector<int> myNumbers;
std::erase_if(myNumbers, Eraser(number_in)); // or use lambda
or:
std::vector<int> myNumbers;
std::erase(myNumbers, number_in);
For preventing naming conflicts, only import the variables that you need:
variableInFile () {
variable="${1}"
file="${2}"
echo $(
source "${file}";
eval echo \$\{${variable}\}
)
}
CollectionUtils.isNotEmpty
checks if your collection is not null and not empty. This is better comparing to double check but only if you have this Apache library in your project. If you don't then use:
if(list != null && !list.isEmpty())
my telepathic abilities are not particularly great, but here is what I think you want:
def merge(list_of_strings, indices):
list_of_strings[indices[0]] = ''.join(list_of_strings[i] for i in indices)
list_of_strings = [s for i, s in enumerate(list_of_strings) if i not in indices[1:]]
return list_of_strings
I should note, since it might be not obvious, that it's not the same as what is proposed in other answers.
The key is not to schedule all pics at once, but to schedule a next pic each time you have a pic shown.
var current = 0;
var num_slides = 10;
function slide() {
// here display the current slide, then:
current = (current + 1) % num_slides;
setTimeout(slide, 3000);
}
The alternative is to use setInterval
, which sets the function to repeat regularly (as opposed to setTimeout
, which schedules the next appearance only.
If you are using a declarative syntax of Jenkinsfile to describe your building pipeline, you can use changeset condition to limit stage execution only to the case when specific files are changed. This is now a standard feature of Jenkins and does not require any additional configruation/software.
stages {
stage('Nginx') {
when { changeset "nginx/*"}
steps {
sh "make build-nginx"
sh "make start-nginx"
}
}
}
You can combine multiple conditions using anyOf
or allOf
keywords for OR or AND behaviour accordingly:
when {
anyOf {
changeset "nginx/**"
changeset "fluent-bit/**"
}
}
steps {
sh "make build-nginx"
sh "make start-nginx"
}
The .import
command is a feature of the sqlite3 command-line tool. To do it in Python, you should simply load the data using whatever facilities Python has, such as the csv module, and inserting the data as per usual.
This way, you also have control over what types are inserted, rather than relying on sqlite3's seemingly undocumented behaviour.
To differentiate between scroll up/down in jQuery, you could use:
var mousewheelevt = (/Firefox/i.test(navigator.userAgent)) ? "DOMMouseScroll" : "mousewheel" //FF doesn't recognize mousewheel as of FF3.x
$('#yourDiv').bind(mousewheelevt, function(e){
var evt = window.event || e //equalize event object
evt = evt.originalEvent ? evt.originalEvent : evt; //convert to originalEvent if possible
var delta = evt.detail ? evt.detail*(-40) : evt.wheelDelta //check for detail first, because it is used by Opera and FF
if(delta > 0) {
//scroll up
}
else{
//scroll down
}
});
This method also works in divs that have overflow:hidden
.
I successfully tested it in FireFox, IE and Chrome.
jeb's edited answer comes close to solving all the issues. But it has problems with the following strings:
"a\b\"
"a/b/"
"\"
"/"
"."
".."
"c:"
I've modified his technique to something that I think can truly handle any string of printable characters, except for length limitations.
Other improvements:
Uses the %TEMP% location for the temp file, so no longer need write access to the current directory.
Created 2 variants, one takes a string literal, the other the name of a variable containing the string. The variable version is generally less convenient, but it eliminates some special character escape issues.
Added the /n option as an optional 3rd parameter to append a newline at the end of the output.
Backspace does not work across a line break, so the technique can have problems if the line wraps. For example, printing a string with length between 74 - 79 will not work properly if the console has a line width of 80.
@echo off
setlocal
call :initColorPrint
call :colorPrint 0a "a"
call :colorPrint 0b "b"
set "txt=^" & call :colorPrintVar 0c txt
call :colorPrint 0d "<"
call :colorPrint 0e ">"
call :colorPrint 0f "&"
call :colorPrint 1a "|"
call :colorPrint 1b " "
call :colorPrint 1c "%%%%"
call :colorPrint 1d ^"""
call :colorPrint 1e "*"
call :colorPrint 1f "?"
call :colorPrint 2a "!"
call :colorPrint 2b "."
call :colorPrint 2c ".."
call :colorPrint 2d "/"
call :colorPrint 2e "\"
call :colorPrint 2f "q:" /n
echo(
set complex="c:\hello world!/.\..\\a//^<%%>&|!" /^^^<%%^>^&^|!\
call :colorPrintVar 74 complex /n
call :cleanupColorPrint
exit /b
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:colorPrint Color Str [/n]
setlocal
set "str=%~2"
call :colorPrintVar %1 str %3
exit /b
:colorPrintVar Color StrVar [/n]
if not defined %~2 exit /b
setlocal enableDelayedExpansion
set "str=a%DEL%!%~2:\=a%DEL%\..\%DEL%%DEL%%DEL%!"
set "str=!str:/=a%DEL%/..\%DEL%%DEL%%DEL%!"
set "str=!str:"=\"!"
pushd "%temp%"
findstr /p /A:%1 "." "!str!\..\x" nul
if /i "%~3"=="/n" echo(
exit /b
:initColorPrint
for /F "tokens=1,2 delims=#" %%a in ('"prompt #$H#$E# & echo on & for %%b in (1) do rem"') do set "DEL=%%a"
<nul >"%temp%\x" set /p "=%DEL%%DEL%%DEL%%DEL%%DEL%%DEL%.%DEL%"
exit /b
:cleanupColorPrint
del "%temp%\x"
exit /b
UPDATE 2012-11-27
This method fails on XP because FINDSTR displays backspace as a period on the screen. jeb's original answer works on XP, albeit with the limitations already noted
UPDATE 2012-12-14
There has been a lot of development activity at DosTips and SS64. It turns out that FINDSTR also corrupts file names containing extended ASCII if supplied on the command line. I've updated my FINDSTR Q&A.
Below is a version that works on XP and supports ALL single byte characters except 0x00 (nul), 0x0A (linefeed), and 0x0D (carriage return). However, when running on XP, most control characters will display as dots. This is an inherent feature of FINDSTR on XP that cannot be avoided.
Unfortunately, adding support for XP and for extended ASCII characters slows the routine down :-(
Just for fun, I grabbed some color ASCII art from joan stark's ASCII Art Gallery and adapted it for use with ColorPrint. I added a :c entry point just for shorthand, and to handle an issue with quote literals.
@echo off
setlocal disableDelayedExpansion
set q=^"
echo(
echo(
call :c 0E " , .-;" /n
call :c 0E " , |\ / / __," /n
call :c 0E " |\ '.`-.| |.'.-'" /n
call :c 0E " \`'-: `; : /" /n
call :c 0E " `-._'. \'|" /n
call :c 0E " ,_.-=` ` ` ~,_" /n
call :c 0E " '--,. "&call :c 0c ".-. "&call :c 0E ",=!q!." /n
call :c 0E " / "&call :c 0c "{ "&call :c 0A "* "&call :c 0c ")"&call :c 0E "`"&call :c 06 ";-."&call :c 0E "}" /n
call :c 0E " | "&call :c 0c "'-' "&call :c 06 "/__ |" /n
call :c 0E " / "&call :c 06 "\_,\|" /n
call :c 0E " | (" /n
call :c 0E " "&call :c 0c "__ "&call :c 0E "/ ' \" /n
call :c 02 " /\_ "&call :c 0c "/,'`"&call :c 0E "| ' "&call :c 0c ".-~!q!~~-." /n
call :c 02 " |`.\_ "&call :c 0c "| "&call :c 0E "/ ' , "&call :c 0c "/ \" /n
call :c 02 " _/ `, \"&call :c 0c "| "&call :c 0E "; , . "&call :c 0c "| , ' . |" /n
call :c 02 " \ `, "&call :c 0c "| "&call :c 0E "| , , "&call :c 0c "| : ; : |" /n
call :c 02 " _\ `, "&call :c 0c "\ "&call :c 0E "|. , "&call :c 0c "| | | | |" /n
call :c 02 " \` `. "&call :c 0c "\ "&call :c 0E "| ' "&call :c 0A "|"&call :c 0c "\_|-'|_,'\|" /n
call :c 02 " _\ `, "&call :c 0A "`"&call :c 0E "\ ' . ' "&call :c 0A "| | | | | "&call :c 02 "__" /n
call :c 02 " \ `, "&call :c 0E "| , ' "&call :c 0A "|_/'-|_\_/ "&call :c 02 "__ ,-;` /" /n
call :c 02 " \ `, "&call :c 0E "\ . , ' .| | | | | "&call :c 02 "_/' ` _=`|" /n
call :c 02 " `\ `, "&call :c 0E "\ , | | | | |"&call :c 02 "_/' .=!q! /" /n
call :c 02 " \` `, "&call :c 0E "`\ \/|,| ;"&call :c 02 "/' .=!q! |" /n
call :c 02 " \ `, "&call :c 0E "`\' , | ; "&call :c 02 "/' =!q! _/" /n
call :c 02 " `\ `, "&call :c 05 ".-!q!!q!-. "&call :c 0E "': "&call :c 02 "/' =!q! /" /n
call :c 02 " jgs _`\ ;"&call :c 05 "_{ ' ; "&call :c 02 "/' =!q! /" /n
call :c 02 " _\`-/__"&call :c 05 ".~ `."&call :c 07 "8"&call :c 05 ".'.!q!`~-. "&call :c 02 "=!q! _,/" /n
call :c 02 " __\ "&call :c 05 "{ '-."&call :c 07 "|"&call :c 05 ".'.--~'`}"&call :c 02 " _/" /n
call :c 02 " \ .=!q!` "&call :c 05 "}.-~!q!'"&call :c 0D "u"&call :c 05 "'-. '-..' "&call :c 02 "__/" /n
call :c 02 " _/ .!q! "&call :c 05 "{ -'.~('-._,.'"&call :c 02 "\_,/" /n
call :c 02 " / .!q! _/'"&call :c 05 "`--; ; `. ;" /n
call :c 02 " .=!q! _/' "&call :c 05 "`-..__,-'" /n
call :c 02 " __/'" /n
echo(
exit /b
:c
setlocal enableDelayedExpansion
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:colorPrint Color Str [/n]
setlocal
set "s=%~2"
call :colorPrintVar %1 s %3
exit /b
:colorPrintVar Color StrVar [/n]
if not defined DEL call :initColorPrint
setlocal enableDelayedExpansion
pushd .
':
cd \
set "s=!%~2!"
:: The single blank line within the following IN() clause is critical - DO NOT REMOVE
for %%n in (^"^
^") do (
set "s=!s:\=%%~n\%%~n!"
set "s=!s:/=%%~n/%%~n!"
set "s=!s::=%%~n:%%~n!"
)
for /f delims^=^ eol^= %%s in ("!s!") do (
if "!" equ "" setlocal disableDelayedExpansion
if %%s==\ (
findstr /a:%~1 "." "\'" nul
<nul set /p "=%DEL%%DEL%%DEL%"
) else if %%s==/ (
findstr /a:%~1 "." "/.\'" nul
<nul set /p "=%DEL%%DEL%%DEL%%DEL%%DEL%"
) else (
>colorPrint.txt (echo %%s\..\')
findstr /a:%~1 /f:colorPrint.txt "."
<nul set /p "=%DEL%%DEL%%DEL%%DEL%%DEL%%DEL%%DEL%"
)
)
if /i "%~3"=="/n" echo(
popd
exit /b
:initColorPrint
for /f %%A in ('"prompt $H&for %%B in (1) do rem"') do set "DEL=%%A %%A"
<nul >"%temp%\'" set /p "=."
subst ': "%temp%" >nul
exit /b
:cleanupColorPrint
2>nul del "%temp%\'"
2>nul del "%temp%\colorPrint.txt"
>nul subst ': /d
exit /b
Here goes what O'reilly Enterprise JavaBeans, 3.0 says
JDBC has special types for these very large objects. The java.sql.Blob type represents binary data, and java.sql.Clob represents character data.
Here goes PostgreSQLDialect source code
public PostgreSQLDialect() {
super();
...
registerColumnType(Types.VARBINARY, "bytea");
/**
* Notice it maps java.sql.Types.BLOB as oid
*/
registerColumnType(Types.BLOB, "oid");
}
So what you can do
Override PostgreSQLDialect as follows
public class CustomPostgreSQLDialect extends PostgreSQLDialect {
public CustomPostgreSQLDialect() {
super();
registerColumnType(Types.BLOB, "bytea");
}
}
Now just define your custom dialect
<property name="hibernate.dialect" value="br.com.ar.dialect.CustomPostgreSQLDialect"/>
And use your portable JPA @Lob annotation
@Lob
public byte[] getValueBuffer() {
UPDATE
Here has been extracted here
I have an application running in hibernate 3.3.2 and the applications works fine, with all blob fields using oid (byte[] in java)
...
Migrating to hibernate 3.5 all blob fields not work anymore, and the server log shows: ERROR org.hibernate.util.JDBCExceptionReporter - ERROR: column is of type oid but expression is of type bytea
which can be explained here
This generaly is not bug in PG JDBC, but change of default implementation of Hibernate in 3.5 version. In my situation setting compatible property on connection did not helped.
...
Much more this what I saw in 3.5 - beta 2, and i do not know if this was fixed is Hibernate - without @Type annotation - will auto-create column of type oid, but will try to read this as bytea
Interesting is because when he maps Types.BOLB as bytea (See CustomPostgreSQLDialect) He get
Could not execute JDBC batch update
when inserting or updating
What you are doing is to look for (0) or (1) results.
(cnt >= 10 && cnt <= 20) returns either true or false.
--edit-- you can't use case with boolean (logic) experessions. The statement cnt >= 10 returns zero for false or one for true. Hence, it will we case(1) or case(0) which will never match to the length. --edit--
<key>NSAppTransportSecurity</key>
<dict>
<key>NSExceptionDomains</key>
<dict>
<key>com</key>
<dict>
<key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
<true/>
</dict>
<key>net</key>
<dict>
<key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
<true/>
</dict>
<key>org</key>
<dict>
<key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
<true/>
</dict>
</dict>
</dict>
This will allow to connect to .com .net .org
In C, unlike say C++, you would need a format specifier that states the datatype of the variable you want to print-in this case %d as the data type is an integer . Try printf("%d",addNumbers(a,b));
"What is it?" and "What does it do?" has been explained above.
I will give a example of "when it should be used".
For example, we have a class with lots of resource like big array in it.
class ResHeavy{ // ResHeavy means heavy resource
public:
ResHeavy(int len=10):_upInt(new int[len]),_len(len){
cout<<"default ctor"<<endl;
}
ResHeavy(const ResHeavy& rhs):_upInt(new int[rhs._len]),_len(rhs._len){
cout<<"copy ctor"<<endl;
}
ResHeavy& operator=(const ResHeavy& rhs){
_upInt.reset(new int[rhs._len]);
_len = rhs._len;
cout<<"operator= ctor"<<endl;
}
ResHeavy(ResHeavy&& rhs){
_upInt = std::move(rhs._upInt);
_len = rhs._len;
rhs._len = 0;
cout<<"move ctor"<<endl;
}
// check array valid
bool is_up_valid(){
return _upInt != nullptr;
}
private:
std::unique_ptr<int[]> _upInt; // heavy array resource
int _len; // length of int array
};
Test code:
void test_std_move2(){
ResHeavy rh; // only one int[]
// operator rh
// after some operator of rh, it becomes no-use
// transform it to other object
ResHeavy rh2 = std::move(rh); // rh becomes invalid
// show rh, rh2 it valid
if(rh.is_up_valid())
cout<<"rh valid"<<endl;
else
cout<<"rh invalid"<<endl;
if(rh2.is_up_valid())
cout<<"rh2 valid"<<endl;
else
cout<<"rh2 invalid"<<endl;
// new ResHeavy object, created by copy ctor
ResHeavy rh3(rh2); // two copy of int[]
if(rh3.is_up_valid())
cout<<"rh3 valid"<<endl;
else
cout<<"rh3 invalid"<<endl;
}
output as below:
default ctor
move ctor
rh invalid
rh2 valid
copy ctor
rh3 valid
We can see that std::move
with move constructor
makes transform resource easily.
Where else is std::move
useful?
std::move
can also be useful when sorting an array of elements. Many sorting algorithms (such as selection sort and bubble sort) work by swapping pairs of elements. Previously, we’ve had to resort to copy-semantics to do the swapping. Now we can use move semantics, which is more efficient.
It can also be useful if we want to move the contents managed by one smart pointer to another.
Cited:
Looks like you have a corrupt tree object. You will need to get that object from someone else. Hopefully they will have an uncorrupted version.
You could actually reconstruct it if you can't find a valid version from someone else by guessing at what files should be there. You may want to see if the dates & times of the objects match up to it. Those could be the related blobs. You could infer the structure of the tree object from those objects.
Take a look at Scott Chacon's Git Screencasts regarding git internals. This will show you how git works under the hood and how to go about doing this detective work if you are really stuck and can't get that object from someone else.
<div class="inter">
<p>Liste des Produits</p>
<ul>
<li><a href="#1">P1</a></li>
<li><a href="#2">P2</a></li>
<li><a href="#3">P3</a></li>
</ul>
</div>
$(document).ready(function(){
$(".inter li").bind(
"click", function(){
alert($(this).children("a").text());
});
});
If you don't mind the slashes being switched, you could [ab]use Uri
:
Uri file = new Uri(@"c:\foo\bar\blop\blap.txt");
// Must end in a slash to indicate folder
Uri folder = new Uri(@"c:\foo\bar\");
string relativePath =
Uri.UnescapeDataString(
folder.MakeRelativeUri(file)
.ToString()
.Replace('/', Path.DirectorySeparatorChar)
);
string GetRelativePath(string filespec, string folder)
{
Uri pathUri = new Uri(filespec);
// Folders must end in a slash
if (!folder.EndsWith(Path.DirectorySeparatorChar.ToString()))
{
folder += Path.DirectorySeparatorChar;
}
Uri folderUri = new Uri(folder);
return Uri.UnescapeDataString(folderUri.MakeRelativeUri(pathUri).ToString().Replace('/', Path.DirectorySeparatorChar));
}
I restarted my computer and then opened the IDE again and it worked while none of the above did.
Maybe you have to do the things above as well, but make sure to restart the computer too.
Use the Javascript string split() function.
var coolVar = '123-abc-itchy-knee';
var partsArray = coolVar.split('-');
// Will result in partsArray[0] == '123', partsArray[1] == 'abc', etc
If you aren't comfortable with using negative margins, check this out.
div {
position: fixed;
left: 50%;
bottom: 20px;
transform: translate(-50%, -50%);
margin: 0 auto;
}
<div>
Your Text
</div>
Especially useful when you don't know the width of the div.
align="center"
has no effect.
Since you have position:absolute
, I would recommend positioning it 50% from the left and then subtracting half of its width from its left margin.
#manipulate {
position:absolute;
width:300px;
height:300px;
background:#063;
bottom:0px;
right:25%;
left:50%;
margin-left:-150px;
}
Google recommend that you don't use any of them, source.
There is no need to use entity references like
&mdash
,&rdquo
, or☺
, assuming the same encoding (UTF-8) is used for files and editors as well as among teams.
Is there a reason you can't simply use "
?
if (!string.IsNullOrEmpty(Request.Form["username"])) { ... }
username is the name of the input on the submitting page. The password can be obtained the same way. If its not null or empty, it exists, then log in the user (I don't recall the exact steps for ASP.NET Membership, assuming that's what you're using).
The idea of only returning at the end of a function came back from the days before languages had support for exceptions. It enabled programs to rely on being able to put clean-up code at the end of a method, and then being sure it would be called and some other programmer wouldn't hide a return in the method that caused the cleanup code to be skipped. Skipped cleanup code could result in a memory or resource leak.
However, in a language that supports exceptions, it provides no such guarantees. In a language that supports exceptions, the execution of any statement or expression can cause a control flow that causes the method to end. This means clean-up must be done through using the finally or using keywords.
Anyway, I'm saying I think a lot of people quote the 'only return at the end of a method' guideline without understanding why it was ever a good thing to do, and that reducing nesting to improve readability is probably a better aim.
You can stop any IIS Express application or you can stop all application. Right click on IIS express icon , which is located at right bottom corner of task bar. Then Select Show All Application
I'm not sure what happened in your case that fixed the issue, but your issue was on this line:
Caused by: java.lang.NoClassDefFoundError: javax/xml/rpc/handler/soap/SOAPMessageContext
You need to add jaxrpc-api.jar
to your /lib
s or add
<dependency>
<groupId>javax.xml</groupId>
<artifactId>jaxrpc-api</artifactId>
<version>x.x.x</version>
</dependency>
to your maven dependencies.
private IEnumerable<TextBox> GetTextBoxes(Control control)
{
if (control is TextBox textBox)
{
yield return textBox;
}
if (control.HasChildren)
{
foreach (Control ctr in control.Controls)
{
foreach (var textbox in GetTextBoxes(ctr))
{
yield return textbox;
}
}
}
}
From Gradle Plugin User Guide:
When instrumentation tests are run, both the main APK and test APK share the same classpath. Gradle build will fail if the main APK and the test APK use the same library (e.g. Guava) but in different versions. If gradle didn't catch that, your app could behave differently during tests and during normal run (including crashing in one of the cases).
To make the build succeed, just make sure both APKs use the same version. If the error is about an indirect dependency (a library you didn't mention in your build.gradle), just add a dependency for the newer version to the configuration
Add this line to your build.gradle dependencies to use newer version for both APKs:
compile('com.google.code.findbugs:jsr305:2.0.1')
For future reference, you can check your Gradle Console and it will provide a helpful link next to the error to help with any gradle build errors.
It is better to use .hasClass()
when you want to check if an element has a particular class
. This is because when an element has multiple class
it is not trivial to check.
Example:
<div id='test' class='main divhover'></div>
Where:
$('#test').attr('class'); // returns `main divhover`.
With .hasClass()
we can test if the div
has the class divhover
.
$('#test').hasClass('divhover'); // returns true
$('#test').hasClass('main'); // returns true
To fix this problem, you have to install OpenSSL development package, which is available in standard repositories of all modern Linux distributions.
To install OpenSSL development package on Debian, Ubuntu or their derivatives:
$ sudo apt-get install libssl-dev
To install OpenSSL development package on Fedora, CentOS or RHEL:
$ sudo yum install openssl-devel
Edit : As @isapir has pointed out, for Fedora version>=22 use the DNF package manager :
dnf install openssl-devel
As pointed out by others as well, Volley is officially available on Github:
Add this line to your gradle dependencies for volley:
compile 'com.android.volley:volley:1.0.0'
I like to keep the official volley repository in my app. That way I get it from the official source and can get updates without depending on anyone else and mitigating concerns expressed by other people.
Added volley as a submodule alongside app.
git submodule add -b master https://github.com/google/volley.git volley
In my settings.gradle, added the following line to add volley as a module.
include ':volley'
In my app/build.gradle, I added a compile dependency for the volley project
compile project(':volley')
That's all! Volley can now be used in my project.
Everytime I want to sync the volley module with Google's repo, i run this.
git submodule foreach git pull
You can use this snippet :-D
using System;
using System.Reflection;
public static class EnumUtils
{
public static T GetDefaultValue<T>()
where T : struct, Enum
{
return (T)GetDefaultValue(typeof(T));
}
public static object GetDefaultValue(Type enumType)
{
var attribute = enumType.GetCustomAttribute<DefaultValueAttribute>(inherit: false);
if (attribute != null)
return attribute.Value;
var innerType = enumType.GetEnumUnderlyingType();
var zero = Activator.CreateInstance(innerType);
if (enumType.IsEnumDefined(zero))
return zero;
var values = enumType.GetEnumValues();
return values.GetValue(0);
}
}
Example:
using System;
public enum Enum1
{
Foo,
Bar,
Baz,
Quux
}
public enum Enum2
{
Foo = 1,
Bar = 2,
Baz = 3,
Quux = 0
}
public enum Enum3
{
Foo = 1,
Bar = 2,
Baz = 3,
Quux = 4
}
[DefaultValue(Enum4.Bar)]
public enum Enum4
{
Foo = 1,
Bar = 2,
Baz = 3,
Quux = 4
}
public static class Program
{
public static void Main()
{
var defaultValue1 = EnumUtils.GetDefaultValue<Enum1>();
Console.WriteLine(defaultValue1); // Foo
var defaultValue2 = EnumUtils.GetDefaultValue<Enum2>();
Console.WriteLine(defaultValue2); // Quux
var defaultValue3 = EnumUtils.GetDefaultValue<Enum3>();
Console.WriteLine(defaultValue3); // Foo
var defaultValue4 = EnumUtils.GetDefaultValue<Enum4>();
Console.WriteLine(defaultValue4); // Bar
}
}
Just call the action no need for redirect to action
or the new
keyword for model.
[HttpPost]
public ActionResult FillStudent(Student student1)
{
return GetStudent(student1); //this will also work
}
public ActionResult GetStudent(Student student)
{
return View(student);
}
With the inspiration of @Joel Ostblom
For those who already have a workable dictionary for merely aggregation, you can use/modify the following code for the newer version aggregation, separating aggregation and renaming part. Please be aware of the nested dictionary if there are more than 1 item.
def agg_translate_agg_rename(input_agg_dict):
agg_dict = {}
rename_dict = {}
for k, v in input_agg_dict.items():
if len(v) == 1:
agg_dict[k] = list(v.values())[0]
rename_dict[k] = list(v.keys())[0]
else:
updated_index = 1
for nested_dict_k, nested_dict_v in v.items():
modified_key = k + "_" + str(updated_index)
agg_dict[modified_key] = nested_dict_v
rename_dict[modified_key] = nested_dict_k
updated_index += 1
return agg_dict, rename_dict
one_dict = {"column1": {"foo": 'sum'}, "column2": {"mean": 'mean', "std": 'std'}}
agg, rename = agg_translator_aa(one_dict)
We get
agg = {'column1': 'sum', 'column2_1': 'mean', 'column2_2': 'std'}
rename = {'column1': 'foo', 'column2_1': 'mean', 'column2_2': 'std'}
Please let me know if there is a smarter way to do it. Thanks.
A very very good document regarding this topic is Troubleshooting Guide for Java from (originally) Sun. See the chapter "Troubleshooting System Crashes" for information about hs_err_pid*
Files.
See Appendix C - Fatal Error Log
Per the guide, by default the file will be created in the working directory of the process if possible, or in the system temporary directory otherwise. A specific location can be chosen by passing in the -XX:ErrorFile product flag. It says:
If the -XX:ErrorFile= file flag is not specified, the system attempts to create the file in the working directory of the process. In the event that the file cannot be created in the working directory (insufficient space, permission problem, or other issue), the file is created in the temporary directory for the operating system.
What about this one?
http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js
I think this is always the latest version - Correct me, if I'm wrong.
give username as admin
and leave the password empty
Github has a nice solution, which is the following shell script:
#!/bin/sh
git filter-branch --env-filter '
an="$GIT_AUTHOR_NAME"
am="$GIT_AUTHOR_EMAIL"
cn="$GIT_COMMITTER_NAME"
cm="$GIT_COMMITTER_EMAIL"
if [ "$GIT_COMMITTER_EMAIL" = "[email protected]" ]
then
cn="Your New Committer Name"
cm="Your New Committer Email"
fi
if [ "$GIT_AUTHOR_EMAIL" = "[email protected]" ]
then
an="Your New Author Name"
am="Your New Author Email"
fi
export GIT_AUTHOR_NAME="$an"
export GIT_AUTHOR_EMAIL="$am"
export GIT_COMMITTER_NAME="$cn"
export GIT_COMMITTER_EMAIL="$cm"
'
Varargs will work too!
Stream.of(T... values).collect(Collectors.toSet());
Maybe you are trying to set it in Apache's php.ini
, but your CLI (Command Line Interface) php.ini
is not good.
Find your php.ini
file with the following command:
php -i | grep php.ini
And then search for date.timezone
and set it to "Europe/Amsterdam"
. all valid timezone will be found here http://php.net/manual/en/timezones.php
Another way (if the other does not work), search for the file AppKernel.php
, which should be under the folder app
of your Symfony project directory. Overwrite the __construct
function below in the class AppKernel
:
<?php
class AppKernel extends Kernel
{
// Other methods and variables
// Append this init function below
public function __construct($environment, $debug)
{
date_default_timezone_set( 'Europe/Paris' );
parent::__construct($environment, $debug);
}
}
Here's my little 2 cents, for what it's worth ;)
def indexLines(filename, lines=[2,4,6,8,10,12,3,5,7,1]):
fp = open(filename, "r")
src = fp.readlines()
data = [(index, line) for index, line in enumerate(src) if index in lines]
fp.close()
return data
# Usage below
filename = "C:\\Your\\Path\\And\\Filename.txt"
for line in indexLines(filename): # using default list, specify your own list of lines otherwise
print "Line: %s\nData: %s\n" % (line[0], line[1])
I use Octave, but Matlab has the same syntax.
Create 3d matrix:
octave:3> m = ones(2,3,2)
m =
ans(:,:,1) =
1 1 1
1 1 1
ans(:,:,2) =
1 1 1
1 1 1
Now, say I have a 2D matrix that I want to expand in a new dimension:
octave:4> Two_D = ones(2,3)
Two_D =
1 1 1
1 1 1
I can expand it by creating a 3D matrix, setting the first 2D in it to my old (here I have size two of the third dimension):
octave:11> Three_D = zeros(2,3,2)
Three_D =
ans(:,:,1) =
0 0 0
0 0 0
ans(:,:,2) =
0 0 0
0 0 0
octave:12> Three_D(:,:,1) = Two_D
Three_D =
ans(:,:,1) =
1 1 1
1 1 1
ans(:,:,2) =
0 0 0
0 0 0
If you really want the New Line string as a constant, then you can do this:
public readonly string myVar = Environment.NewLine;
The user of the readonly keyword in C# means that this variable can only be assigned to once. You can find the documentation on it here. It allows the declaration of a constant variable whose value isn't known until execution time.
In summary, I've fixed the problem by putting the database file (* .db) in a subfolder.
You can use
str1.compareTo(str2);
If str1 is lexicographically less than str2, a negative number
will be returned, 0
if equal or a positive number
if str1 is greater.
E.g.,
"a".compareTo("b"); // returns a negative number, here -1
"a".compareTo("a"); // returns 0
"b".compareTo("a"); // returns a positive number, here 1
"b".compareTo(null); // throws java.lang.NullPointerException
Since it's from Oracle, how about a lookup table of pre calculated answers. :-D
You may be looking for the n key.
A[A==NDV]=numpy.nan
A==NDV will produce a boolean array that can be used as an index for A
I know I am late, but if you want to know the easiest way, you could do a code like this:
number = 100
right_questions = 1
control = 100
c = control / number
cc = right_questions * c
print float(cc)
You can change up the number score, and right_questions. It will tell you the percent.
Standard Java Runtime Environment way:
public String checksum(File file) {
try {
InputStream fin = new FileInputStream(file);
java.security.MessageDigest md5er =
MessageDigest.getInstance("MD5");
byte[] buffer = new byte[1024];
int read;
do {
read = fin.read(buffer);
if (read > 0)
md5er.update(buffer, 0, read);
} while (read != -1);
fin.close();
byte[] digest = md5er.digest();
if (digest == null)
return null;
String strDigest = "0x";
for (int i = 0; i < digest.length; i++) {
strDigest += Integer.toString((digest[i] & 0xff)
+ 0x100, 16).substring(1).toUpperCase();
}
return strDigest;
} catch (Exception e) {
return null;
}
}
The result is equal of linux md5sum utility.
You can have great success and great performance either way. MSDN runs off of ASP.NET so you know it can perform well. PHP runs a lot of the top websites in the world. The same can be said of the databases as well. You really need to choose based upon your skills, the skills of your team, possible specific features that you need/want that one does better than the other, and even the servers that you want to run this site.
If I were building it, I would lean towards PHP because probably everything you want to do has been done before (with code examples how) and because hosting is so much easier to get (and cheaper because you don't have the licensing issues to deal with compared to Windows hosting). For the same reason, I would choose MySQL as well. It is a great database platform and the price is right.
For Windows users, enter the following command :
set JAVA_OPTS=-Dhttp.proxySet=true -Dhttp.proxyHost=[Your Proxy server] -Dhttp.proxyPort=8080
Code Snippet:
div{height: calc(100vh - 10vmax)}
In my case, I added Lucid extension to Chrome and didn't notice the problem at that moment. After about a day of working on the problem and turning the program upside down, in a post someone had mentioned Lucid. I remembered what I had done and removed the extension from Chrome and ran the program again. The problem was gone. I am working with React. I thought this might help.
This is the same concept as Siddharth Rout's answer. But I wanted a date picker which could be fully customized so that the look and feel could be tailored to whatever project it's being used in.
You can click this link to download the custom date picker I came up with. Below are some screenshots of the form in action.
To use the date picker, simply import the CalendarForm.frm file into your VBA project. Each of the calendars above can be obtained with one single function call. The result just depends on the arguments you use (all of which are optional), so you can customize it as much or as little as you want.
For example, the most basic calendar on the left can be obtained by the following line of code:
MyDateVariable = CalendarForm.GetDate
That's all there is to it. From there, you just include whichever arguments you want to get the calendar you want. The function call below will generate the green calendar on the right:
MyDateVariable = CalendarForm.GetDate( _
SelectedDate:=Date, _
DateFontSize:=11, _
TodayButton:=True, _
BackgroundColor:=RGB(242, 248, 238), _
HeaderColor:=RGB(84, 130, 53), _
HeaderFontColor:=RGB(255, 255, 255), _
SubHeaderColor:=RGB(226, 239, 218), _
SubHeaderFontColor:=RGB(55, 86, 35), _
DateColor:=RGB(242, 248, 238), _
DateFontColor:=RGB(55, 86, 35), _
SaturdayFontColor:=RGB(55, 86, 35), _
SundayFontColor:=RGB(55, 86, 35), _
TrailingMonthFontColor:=RGB(106, 163, 67), _
DateHoverColor:=RGB(198, 224, 180), _
DateSelectedColor:=RGB(169, 208, 142), _
TodayFontColor:=RGB(255, 0, 0), _
DateSpecialEffect:=fmSpecialEffectRaised)
Here is a small taste of some of the features it includes. All options are fully documented in the userform module itself:
Try:
var date = new Date('2012-11-29 17:00:34 UTC');
date.toString();
Using the selectedOptions
property:
var yourSelect = document.getElementById("your-select-id");
alert(yourSelect.selectedOptions[0].value);
It works in all browsers except Internet Explorer.
Above example is technically incorrect. Per latest jQuery, use the prop()
method should be used for things like disabled. See their API page.
To disable all form elements inside 'target', use the :input selector which matches all input, textarea, select and button elements.
$("#target :input").prop("disabled", true);
If you only want the elements, use this.
$("#target input").prop("disabled", true);
I am using Android 10 in MiA2. The mistake I was making is that I tried to install the app via ES Explorer. I tried Settings -> Apps & Notifications -> Advanced -> Special App Access -> Install Unknown Apps -> ES File Manage -> Allow from this source. Even then the app won't install.
Then I tired to install the app using the default File Manager and it installed easily.
Utilize a trailing comma to prevent a new line from being presented:
print "this should be"; print "on the same line"
Should be:
print "this should be", "on the same line"
In addition, you can just attach the variable being passed to the end of the desired string by:
print "Nope, that is not a two. That is a", x
You can also use:
print "Nope, that is not a two. That is a %d" % x #assuming x is always an int
You can access additional documentation regarding string formatting utilizing the %
operator (modulo).
Try
SELECT EXTRACTVALUE(xmltype(testclob), '/DCResponse/ContextData/Field[@key="Decision"]')
FROM traptabclob;
Here is a sqlfiddle demo
Regex regex = new Regex ("^[0-9]{1,4}=[0-9]{1,4]$")
If you want to create another table, just create a new migration file. It's will work.
If you create an migration named users_table
with id, first_name, last_name
. You can create an migration file like
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('first_name',255);
$table->string('last_name',255);
$table->rememberToken();
$table->timestamps();
});
}
public function down()
{
Schema::dropIfExists('users');
}
If you want to add another filed like "status" without migrate:refresh. You can create another migration file like "add_status_filed_to_users_table"
public function up()
{
Schema::table('users', function($table) {
$table->integer('status');
});
}
And don't forget to add the rollback option:
public function down()
{
Schema::table('users', function($table) {
$table->dropColumn('status');
});
}
And when you run migrate with php artitsan migration
, It just migrate the new migration file.
But if you add filed "status" into the first mgration file (users_table) and run migration. It's nothing to migrate. You need to run php artisan migrate:refresh
.
Hope this help.
in terminal, type : conda list
to obtain the packages installed using conda.
for the packages that pip
recognizes, type : pip list
There may be some overlap of these lists as pip
may recognize packages installed by conda
(but maybe not the other way around, IDK).
There is a useful source here, including how to update or upgrade packages..
@PathVariable
is used to tell Spring that part of the URI path is a value you want passed to your method. Is this what you want, or are the variables supposed to be form data posted to the URI?
If you want form data, use @RequestParam
instead of @PathVariable
.
If you want @PathVariable
, you need to specify placeholders in the @RequestMapping
entry to tell Spring where the path variables fit in the URI. For example, if you want to extract a path variable called contentId
, you would use:
@RequestMapping(value = "/whatever/{contentId}", method = RequestMethod.POST)
Edit: Additionally, if your path variable could contain a '.' and you want that part of the data, then you will need to tell Spring to grab everything, not just the stuff before the '.':
@RequestMapping(value = "/whatever/{contentId:.*}", method = RequestMethod.POST)
This is because the default behaviour of Spring is to treat that part of the URL as if it is a file extension, and excludes it from variable extraction.
Because the Method2
is static, all you have to do is call like this:
public class AllMethods
{
public static void Method2()
{
// code here
}
}
class Caller
{
public static void Main(string[] args)
{
AllMethods.Method2();
}
}
If they are in different namespaces you will also need to add the namespace of AllMethods
to caller.cs in a using
statement.
If you wanted to call an instance method (non-static), you'd need an instance of the class to call the method on. For example:
public class MyClass
{
public void InstanceMethod()
{
// ...
}
}
public static void Main(string[] args)
{
var instance = new MyClass();
instance.InstanceMethod();
}
Update
As of C# 6, you can now also achieve this with using static
directive to call static methods somewhat more gracefully, for example:
// AllMethods.cs
namespace Some.Namespace
{
public class AllMethods
{
public static void Method2()
{
// code here
}
}
}
// Caller.cs
using static Some.Namespace.AllMethods;
namespace Other.Namespace
{
class Caller
{
public static void Main(string[] args)
{
Method2(); // No need to mention AllMethods here
}
}
}
Further Reading
Another way to look at it is to consider git rebase master
as:
Rebase the current branch on top of
master
Here , 'master
' is the upstream branch, and that explain why, during a rebase, ours
and theirs
are reversed.
If it gives you permission denial while moving to /var/lib/mysql then use the following solution
$ cd /var/lib/
$ sudo -u mysql myisamchk -r -v -f mysql/<DB_NAME>/<TABLE_NAME>
If you want it outside of loop then use the below code.
<?php
$author_id = get_post_field ('post_author', $cause_id);
$display_name = get_the_author_meta( 'display_name' , $author_id );
echo $display_name;
?>
I deleted the obj folder and then the project loaded as expected.
You need to install this extension to Visual Studio 2017/2019 in order to get access to the Installer Projects.
According to the page:
This extension provides the same functionality that currently exists in Visual Studio 2015 for Visual Studio Installer projects. To use this extension, you can either open the Extensions and Updates dialog, select the online node, and search for "Visual Studio Installer Projects Extension," or you can download directly from this page.
Once you have finished installing the extension and restarted Visual Studio, you will be able to open existing Visual Studio Installer projects, or create new ones.
I should like to contribute the modern answer. The SimpleDateFormat
class is notoriously troublesome, and while it was reasonable to fight one’s way through with it when this question was asked six and a half years ago, today we have much better in java.time, the modern Java date and time API. SimpleDateFormat
and its friend Date
are now considered long outdated, so don’t use them anymore.
DateTimeFormatter monthFormatter = DateTimeFormatter.ofPattern("MM/uuuu");
String dateformat = "2012-11-17T00:00:00.000-05:00";
OffsetDateTime dateTime = OffsetDateTime.parse(dateformat);
String monthYear = dateTime.format(monthFormatter);
System.out.println(monthYear);
Output:
11/2012
I am exploiting the fact that your string is in ISO 8601 format, the international standard, and that the classes of java.time parse this format as their default, that is, without any explicit formatter. It’s stil true what the other answers say, you need to parse the original string first, then format the resulting date-time object into a new string. Usually this requires two formatters, only in this case we’re lucky and can do with just one formatter.
SimpleDateFormat.format
cannot accept a String
argument, also when the parameter type is declared to be Object
.mm/yyyy
. Lowercase mm
os for minute of the hour. You need uppercase MM
for month.m
in monthYear
(also because java.time includes a MonthYear
class with uppercase M
, so to avoid confusion).java.time
.DELETE b FROM BLOB b
LEFT JOIN FILES f ON f.id = b.fileid
WHERE f.id IS NULL
DELETE FROM BLOB
WHERE NOT EXISTS(SELECT NULL
FROM FILES f
WHERE f.id = fileid)
DELETE FROM BLOB
WHERE fileid NOT IN (SELECT f.id
FROM FILES f)
Whenever possible, perform DELETEs within a transaction (assuming supported - IE: Not on MyISAM) so you can use rollback to revert changes in case of problems.
Since it is for Ganymede (eclipse 3.4), I would advise to uncompress the zip in the dropins in the HibernateTools-3.2.4.Beta1-R20081031133 directory created after the name of the archive.
Once it is done, create in the [eclipse\dropins\HibernateTools-3.2.4.Beta1-R20081031133]
an 'eclipse' directory, in which you will move the plugins and features directories creating at the extraction of the files of the archive.
Add a .exclipseextension in [eclipse\dropins\HibernateTools-3.2.4.Beta1-R20081031133\eclipse]
:
name=QuickRex
id=org.hibernate.eclipse
version=3.2.4b1
So:
eclipse
dropins
HibernateTools-3.2.4.Beta1-R20081031133
eclipse
.eclipseextension
features
plugins
Relaunch eclipse and the plugin Hibernate should be detected.
If you install another eclipse, just copy the content of your dropins directory to the new eclipse\dropins
and your set of plugins will be detected again.
here's the working swift code translated from the code provided by @xjones. Thanks alot for your help mate. Yours was the only way that worked for me. I used this method to send 1 image and a another parameter to a webservice made in asp.net
let params = NSMutableDictionary()
let boundaryConstant = "----------V2y2HFg03eptjbaKO0j1"
let file1ParamConstant = "file1"
params.setObject(device_id!, forKey: "deviceID")
let requestUrl = NSURL(string: "\(siteurl):\(port)/FileUpload/Upload")
let request = NSMutableURLRequest()
request.cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringLocalCacheData
request.HTTPShouldHandleCookies=false
request.timeoutInterval = 30
request.HTTPMethod = "POST"
let contentType = "multipart/form-data; boundary=\(boundaryConstant)"
request.setValue(contentType, forHTTPHeaderField: "Content-Type")
let body = NSMutableData()
// parameters
for param in params {
body.appendData("--\(boundaryConstant)\r\n" .dataUsingEncoding(NSUTF8StringEncoding)! )
body.appendData("Content-Disposition: form-data; name=\"\(param)\"\r\n\r\n" .dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("\(param.value)\r\n" .dataUsingEncoding(NSUTF8StringEncoding)!)
}
// images
// image begin
body.appendData("--\(boundaryConstant)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"\(file1ParamConstant)\"; filename=\"image.jpg\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Type: image/jpeg\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData(passportImageData)
body.appendData("\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
// image end
body.appendData("--\(boundaryConstant)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
request.HTTPBody = body
let postLength = "\(body.length)"
request.setValue(postLength, forHTTPHeaderField: "Content-Length")
request.URL = requestUrl
var serverResponse = NSString()
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in
if error != nil
{
print("error=\(error)")
return
}
print("response = \(response)")
let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("responseString = \(responseString!)")
serverResponse = responseString!
}
task.resume()
Does it mean that I'm blocking reading any input from the Server/Client for this socket for 2000 millisecond and after this time the socket is ready to read data?
No, it means that if no data arrives within 2000ms a SocketTimeoutException
will be thrown.
What does it mean timeout expire?
It means the 2000ms (in your case) elapses without any data arriving.
What is the option which must be enabled prior to blocking operation?
There isn't one that 'must be' enabled. If you mean 'may be enabled', this is one of them.
Infinite Timeout menas that the socket does't read anymore?
What a strange suggestion. It means that if no data ever arrives you will block in the read forever.
Python, at startup, loads a bunch of values into sys.path
(which is "implemented" via a list of strings), including:
$PYTHONPATH
rcfiles
)$PYTHONPATH
is only one part of the eventual value of sys.path
.
If you're after the value of sys.path
, the best way would be to ask Python (thanks @Codemonkey):
python -c "import sys; print sys.path"
If you want an alert that is fixed to the top and you are using bootstrap navbar navbar-fixed-top the following style class will overlay they alert on top of the nav:
.alert-fixed {
position:fixed;
top: 0px;
left: 0px;
width: 100%;
z-index:9999;
border-radius:0px
}
This worked well for me to provide alerts even when the user is scrolled down in the page.
A 500 from ASP.NET probably means an unhandled exception was thrown at some point when serving the request.
I suggest you attach a debugger to the web server process (assuming you have access).
One strange thing: You make a POST request to the server, but you do not pass any data (everything is in the query string). Perhaps it should be a GET request instead?
You should also double check that the URL is correct.
No, a List<Dog>
is not a List<Animal>
. Consider what you can do with a List<Animal>
- you can add any animal to it... including a cat. Now, can you logically add a cat to a litter of puppies? Absolutely not.
// Illegal code - because otherwise life would be Bad
List<Dog> dogs = new ArrayList<Dog>(); // ArrayList implements List
List<Animal> animals = dogs; // Awooga awooga
animals.add(new Cat());
Dog dog = dogs.get(0); // This should be safe, right?
Suddenly you have a very confused cat.
Now, you can't add a Cat
to a List<? extends Animal>
because you don't know it's a List<Cat>
. You can retrieve a value and know that it will be an Animal
, but you can't add arbitrary animals. The reverse is true for List<? super Animal>
- in that case you can add an Animal
to it safely, but you don't know anything about what might be retrieved from it, because it could be a List<Object>
.
To map predicted classes and filenames using ImageDataGenerator
, I use:
# Data generator and prediction
test_datagen = ImageDataGenerator(rescale=1./255)
test_generator = test_datagen.flow_from_directory(
inputpath,
target_size=(150, 150),
batch_size=20,
class_mode='categorical',
shuffle=False)
pred = model.predict_generator(test_generator, steps=len(test_generator), verbose=0)
# Get classes by max element in np (as a list)
classes = list(np.argmax(pred, axis=1))
# Get filenames (set shuffle=false in generator is important)
filenames = test_generator.filenames
I can loop over predicted classes and the associated filename using:
for f in zip(classes, filenames):
...