Google Maps basics
Zoom Level - zoom
0 - 19
0 lowest zoom (whole world)
19 highest zoom (individual buildings, if available) Retrieve current zoom level using mapObject.getZoom()
Try the jQuery starts-with
selector, '^=', eg
[id^="jander"]
I have to ask though, why don't you want to do this using classes?
select CPaymentType, sum(CAmount)
from TableOrderPayment
where (CPaymentType = 'Cash' and CStatus = 'Active')
or (CPaymentType = 'Check' and CDate <= bsysdatetime() abd CStatus = 'Active')
group by CPaymentType
Cheers -
Contributed by Stephane CHAZELAS on c.u.s. Assuming POSIX shell:
prg=$0
if [ ! -e "$prg" ]; then
case $prg in
(*/*) exit 1;;
(*) prg=$(command -v -- "$prg") || exit;;
esac
fi
dir=$(
cd -P -- "$(dirname -- "$prg")" && pwd -P
) || exit
prg=$dir/$(basename -- "$prg") || exit
printf '%s\n' "$prg"
In a more general case:
N( A union B) = N(A) + N(B) - N(A intersect B)
= COUNTIFS(A1:A196,"Yes",J1:J196,"Agree")+COUNTIFS(A1:A196,"No",J1:J196,"Agree")-A1:A196,"Yes",A1:A196,"No")
If you are on windows, try Visual Studio Code with MySQL plugins, an easy and integrated way to access MySQL data on a windows machine. And the database tables listed and can execute any custom queries.
It's as easy as the following:
info_1 = "one piece of info"
info_2 = "another piece"
vars = (info_1, info_2)
# 'vars' is now a tuple with the values ("info_1", "info_2")
However, tuples in Python are immutable, so you cannot append variables to a tuple once it is created.
use --cacert
to specify a .crt
file.
ca-root-nss.crt
for example.
I am running node.js on Windows with npm. The trick is simply use cygwin. I followed the howto under https://github.com/joyent/node/wiki/Building-node.js-on-Cygwin-(Windows) . But make sure that you use version 0.4.11 of nodejs or npm will fail!
You need to make two case
labels.
Control will fall through from the first label to the second, so they'll both execute the same code.
Use this to find the scroll direction. This is only to find the direction of the Vertical Scroll. Supports all cross browsers.
var scrollableElement = document.getElementById('scrollableElement');
scrollableElement.addEventListener('wheel', findScrollDirectionOtherBrowsers);
function findScrollDirectionOtherBrowsers(event){
var delta;
if (event.wheelDelta){
delta = event.wheelDelta;
}else{
delta = -1 * event.deltaY;
}
if (delta < 0){
console.log("DOWN");
}else if (delta > 0){
console.log("UP");
}
}
You can only use just the name of the type (with its namespace, of course) if the type is in mscorlib
or the calling assembly. Otherwise, you've got to include the assembly name as well:
Type type = Type.GetType("Namespace.MyClass, MyAssembly");
If the assembly is strongly named, you've got to include all that information too. See the documentation for Type.GetType(string)
for more information.
Alternatively, if you have a reference to the assembly already (e.g. through a well-known type) you can use Assembly.GetType
:
Assembly asm = typeof(SomeKnownType).Assembly;
Type type = asm.GetType(namespaceQualifiedTypeName);
First and foremost thing is to add .gitignore
file in my-app. Like so in image below.
and next add this in your .gitignore
file
/node_modules
You can also add others files too to ignore them to be pushed on github. Here are some more files kept in .gitignore. You can add them according to your requirement. #
is just a way to comment in .gitignore file.
# See https://help.github.com/ignore-files/ for more about ignoring files.
# dependencies
/node_modules
# testing
/coverage
# production
/build
# misc
.DS_Store
.env.local
.env.development.local
.env.test.local
.env.production.local
npm-debug.log*
yarn-debug.log*
yarn-error.log*
Regarding #2, according to the JSR-330 spec:
This package provides dependency injection annotations that enable portable classes, but it leaves external dependency configuration up to the injector implementation.
So it's up to the provider to determine which objects are available for injection. In the case of Spring it is all Spring beans. And any class annotated with JSR-330 annotations are automatically added as Spring beans when using an AnnotationConfigApplicationContext.
The behaviour of this command as been modified so you don't have to pass the -i
option:
[10:19:05] coil@coil:~/workspace/api$ composer show -i
You are using the deprecated option "installed".
Only installed packages are shown by default now.
The --all option can be used to show all packages.
//this is only good in .NET 4
//read your file:
List<string> ReadFile = File.ReadAllLines(@"C:\TEMP\FILE.TXT").ToList();
//manipulate data here
foreach(string line in ReadFile)
{
//do something here
}
//write back to your file:
File.WriteAllLines(@"C:\TEMP\FILE2.TXT", ReadFile);
This should also work, although the src
will remain intact:
document.getElementById("myIFrame").contentWindow.document.location.href="http://myLink.com";
This appears to occur because Google Play Services require Android 2.2, which is SDK version 8.
In build.gradle
, make sure your minSdkVersion is at least 8
. The default appears to be 7
. So you have something like this:
android {
compileSdkVersion 17
buildToolsVersion "17.0.0"
defaultConfig {
minSdkVersion 8
targetSdkVersion 16
}
}
dependencies {
compile 'com.android.support:support-v4:13.0.+'
compile 'com.google.android.gms:play-services:3.1.36'
}
man git-checkout: git checkout A
Rather than using sub queries in where condition which will increase the query time where records are huge.
I would suggest to use Inner Join as a better option to this problem.
Considering the same table this could give the result
SELECT EmailAddress, CustomerName FROM Customers as a
Inner Join Customers as b on a.CustomerName <> b.CustomerName and a.EmailAddress = b.EmailAddress
For still better results I would suggest you to use CustomerID
or any unique field of your table. Duplication of CustomerName
is possible.
PATH: Answered long ago, however, it maybe more helpful to think of -p as "Path" (easier to remember), as in this causes mkdir to create every part of the path that isn't already there.
mkdir -p /usr/bin/comm/diff/er/fence
if /usr/bin/comm already exists, it acts like: mkdir /usr/bin/comm/diff mkdir /usr/bin/comm/diff/er mkdir /usr/bin/comm/diff/er/fence
As you can see, it saves you a bit of typing, and thinking, since you don't have to figure out what's already there and what isn't.
You can combine two queries suggested by @spacepille into single query that looks like this:
SELECT * FROM `table_name` WHERE id=(SELECT MAX(id) FROM `table_name`);
It should work blazing fast, but on INNODB tables it's fraction of milisecond slower than ORDER+LIMIT.
ZoneId here = ZoneId.of("Europe/Kiev");
ZonedDateTime hereAndNow = Instant.now().atZone(here);
String.format("%tz", hereAndNow);
will give you a standardized string representation like "+0300"
If IsNull({TABLE.FIELD1}) then "NULL" +',' + {TABLE.FIELD2} else {TABLE.FIELD1} + ', ' + {TABLE.FIELD2}
Here I put NULL as string to display the string value NULL in place of the null value in the data field. Hope you understand.
Here is my own version, using regular expressions. This code assumes that each section name is unique - if however this is not true - it makes sense to replace Dictionary with List. This function supports .ini file commenting, starting from ';' character. Section starts normally [section], and key value pairs also comes normally "key = value". Same assumption as for sections - key name is unique.
/// <summary>
/// Loads .ini file into dictionary.
/// </summary>
public static Dictionary<String, Dictionary<String, String>> loadIni(String file)
{
Dictionary<String, Dictionary<String, String>> d = new Dictionary<string, Dictionary<string, string>>();
String ini = File.ReadAllText(file);
// Remove comments, preserve linefeeds, if end-user needs to count line number.
ini = Regex.Replace(ini, @"^\s*;.*$", "", RegexOptions.Multiline);
// Pick up all lines from first section to another section
foreach (Match m in Regex.Matches(ini, "(^|[\r\n])\\[([^\r\n]*)\\][\r\n]+(.*?)(\\[([^\r\n]*)\\][\r\n]+|$)", RegexOptions.Singleline))
{
String sectionName = m.Groups[2].Value;
Dictionary<String, String> lines = new Dictionary<String, String>();
// Pick up "key = value" kind of syntax.
foreach (Match l in Regex.Matches(ini, @"^\s*(.*?)\s*=\s*(.*?)\s*$", RegexOptions.Multiline))
{
String key = l.Groups[1].Value;
String value = l.Groups[2].Value;
// Open up quotation if any.
value = Regex.Replace(value, "^\"(.*)\"$", "$1");
if (!lines.ContainsKey(key))
lines[key] = value;
}
if (!d.ContainsKey(sectionName))
d[sectionName] = lines;
}
return d;
}
[^\(]*(\(.*\))[^\)]*
[^\(]*
matches everything that isn't an opening bracket at the beginning of the string, (\(.*\))
captures the required substring enclosed in brackets, and [^\)]*
matches everything that isn't a closing bracket at the end of the string. Note that this expression does not attempt to match brackets; a simple parser (see dehmann's answer) would be more suitable for that.
I resolved conflicts and also committed but still getting this error message on git push
All conflicts fixed but you are still merging.
(use "git commit" to conclude merge)
I did these steps to resolve error:
rm -rf .git/MERGE*
git pull origin branch_name
git push origin branch_name
I came across this question when I had to deal with a particular case: fully updating of content in a "leaf" table (no FKs pointing to it). This involved removing all rows and putting new rows information and it should be done transactionally (I do not want to end up with an empty table, if inserts fails for whatever reason).
I have tried the public static void Clear<T>(this DbSet<T> dbSet)
approach, but new rows are not inserted. Another disadvante is that the whole process is slow, as rows are deleted one by one.
So, I have switched to TRUNCATE
approach, since it is much faster and it is also ROLLBACKable. It also resets the identity.
Example using repository pattern:
public class Repository<T> : IRepository<T> where T : class, new()
{
private readonly IEfDbContext _context;
public void BulkInsert(IEnumerable<T> entities)
{
_context.BulkInsert(entities);
}
public void Truncate()
{
_context.Database.ExecuteSqlCommand($"TRUNCATE TABLE {typeof(T).Name}");
}
}
// usage
DataAccess.TheRepository.Truncate();
var toAddBulk = new List<EnvironmentXImportingSystem>();
// fill toAddBulk from source system
// ...
DataAccess.TheRepository.BulkInsert(toAddBulk);
DataAccess.SaveChanges();
Of course, as already mentioned, this solution cannot be used by tables referenced by foreign keys (TRUNCATE fails).
Memory mapping has a potential for a huge speed advantage compared to traditional IO. It lets the operating system read the data from the source file as the pages in the memory mapped file are touched. This works by creating faulting pages, which the OS detects and then the OS loads the corresponding data from the file automatically.
This works the same way as the paging mechanism and is usually optimized for high speed I/O by reading data on system page boundaries and sizes (usually 4K) - a size for which most file system caches are optimized to.
ContextLoaderListener
has its own context which is shared by all servlets and filters. By default it will search /WEB-INF/applicationContext.xml
You can customize this by using
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/somewhere-else/root-context.xml</param-value>
</context-param>
on web.xml
, or remove this listener if you don't need one.
May be this could help
<script type="text/javascript" language="javascript">
function AddDays(toAdd) {
if (!toAdd || toAdd == '' || isNaN(toAdd)) return;
var d = new Date();
d.setDate(d.getDate() + parseInt(toAdd));
document.getElementById("result").innerHTML = d.getDate() + "/" + d.getMonth() + "/" + d.getFullYear();
}
function SubtractDays(toAdd) {
if (!toAdd || toAdd == '' || isNaN(toAdd)) return;
var d = new Date();
d.setDate(d.getDate() - parseInt(toAdd));
document.getElementById("result").innerHTML = d.getDate() + "/" + d.getMonth() + "/" + d.getFullYear();
}
</script>
---------------------- UI ---------------
<div id="result">
</div>
<input type="text" value="0" onkeyup="AddDays(this.value);" />
<input type="text" value="0" onkeyup="SubtractDays(this.value);" />
a = input('inter a number: ')
s = 0
if a == 1:
print a, 'is a prime'
else :
for i in range (2, a ):
if a%i == 0:
print a,' is not a prime number'
s = 'true'
break
if s == 0 : print a,' is a prime number'
it worked with me just fine :D
To change the sequence of a series in Excel 2010:
Swift 3 & Xcode 8.3.2
This code will help you, i add an explanation too
// Create custom class, this will make your life easier
class CustomDelay {
static let cd = CustomDelay()
// This is your custom delay function
func runAfterDelay(_ delay:Double, closure:@escaping ()->()) {
let when = DispatchTime.now() + delay
DispatchQueue.main.asyncAfter(deadline: when, execute: closure)
}
}
// here how to use it (Example 1)
class YourViewController: UIViewController {
// example delay time 2 second
let delayTime = 2.0
override func viewDidLoad() {
super.viewDidLoad()
CustomDelay.cd.runAfterDelay(delayTime) {
// This func will run after 2 second
// Update your UI here, u don't need to worry to bring this to the main thread because your CustomDelay already make this to main thread automatically :)
self.runFunc()
}
}
// example function 1
func runFunc() {
// do your method 1 here
}
}
// here how to use it (Example 2)
class YourSecondViewController: UIViewController {
// let say you want to user run function shoot after 3 second they tap a button
// Create a button (This is programatically, you can create with storyboard too)
let shootButton: UIButton = {
let button = UIButton(type: .system)
button.frame = CGRect(x: 15, y: 15, width: 40, height: 40) // Customize where do you want to put your button inside your ui
button.setTitle("Shoot", for: .normal)
button.translatesAutoresizingMaskIntoConstraints = false
return button
}()
override func viewDidLoad() {
super.viewDidLoad()
// create an action selector when user tap shoot button
shootButton.addTarget(self, action: #selector(shoot), for: .touchUpInside)
}
// example shoot function
func shoot() {
// example delay time 3 second then shoot
let delayTime = 3.0
// delay a shoot after 3 second
CustomDelay.cd.runAfterDelay(delayTime) {
// your shoot method here
// Update your UI here, u don't need to worry to bring this to the main thread because your CustomDelay already make this to main thread automatically :)
}
}
}
Calling -sizeToFit
on UILabel instance will automatically resize it to fit text it displays, no calculating required. If you need the size, you can get it from label's frame property after that.
label.numberOfLines = 0; // allows label to have as many lines as needed
label.text = @"some long text";
[label sizeToFit];
NSLog(@"Label's frame is: %@", NSStringFromCGRect(label.frame));
import datetime
a = '2010-01-31'
datee = datetime.datetime.strptime(a, "%Y-%m-%d")
datee.month
Out[9]: 1
datee.year
Out[10]: 2010
datee.day
Out[11]: 31
i found this code (note that some Long
are changed to LongPtr
):
Declare PtrSafe Function ShellExecute Lib "shell32.dll" _
Alias "ShellExecuteA" (ByVal hwnd As LongPtr, ByVal lpOperation As String, _
ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As _
String, ByVal nShowCmd As Long) As LongPtr
If you set position to other value than static
but your element's z-index
still doesn't seem to work, it may be that some parent element has z-index
set.
The stacking contexts have hierarchy, and each stacking context is considered in the stacking order of the parent's stacking context.
So with following html
div { border: 2px solid #000; width: 100px; height: 30px; margin: 10px; position: relative; background-color: #FFF; }_x000D_
#el3 { background-color: #F0F; width: 100px; height: 60px; top: -50px; }
_x000D_
<div id="el1" style="z-index: 5"></div>_x000D_
<div id="el2" style="z-index: 3">_x000D_
<div id="el3" style="z-index: 8"></div>_x000D_
</div>
_x000D_
no matter how big the z-index
of el3
will be set, it will always be under el1
because it's parent has lower stacking context. You can imagine stacking order as levels where stacking order of el3
is actually 3.8 which is lower than 5.
If you want to check stacking contexts of parent elements, you can use this:
var el = document.getElementById("#yourElement"); // or use $0 in chrome;
do {
var styles = window.getComputedStyle(el);
console.log(styles.zIndex, el);
} while(el.parentElement && (el = el.parentElement));
Use: xmlhttp.setRequestHeader(key, value);
Just in case. Make sure you load the IE specific js files after you load your css files.
In my specific case of the same issue, it was caused by not having the Powershell script saved with an encoding of Windows-1252 or UFT-8 WITH BOM.
I solved this issue by doing this:
instead of
<Route path="/" component={HomePage} />
do this
<Route
path="/" component={props => <HomePage {...props} />} />
might be your internal network is blocking that IP to ping or blocked ping packet in your firewall if you have opened in security group and VPC is correct.
Following example uses InputBox method to validate user entry to unhide sheets: Important thing here is to use wrap InputBox variable inside StrPtr so it could be compared to '0' when user chose to click 'x' icon on the InputBox.
Sub unhidesheet()
Dim ws As Worksheet
Dim pw As String
pw = InputBox("Enter Password to Unhide Sheets:", "Unhide Data Sheets")
If StrPtr(pw) = 0 Then
Exit Sub
ElseIf pw = NullString Then
Exit Sub
ElseIf pw = 123456 Then
For Each ws In ThisWorkbook.Worksheets
ws.Visible = xlSheetVisible
Next
End If
End Sub
Use to_datetime
, there is no need for a format string the parser is man/woman enough to handle it:
In [51]:
pd.to_datetime(df['I_DATE'])
Out[51]:
0 2012-03-28 14:15:00
1 2012-03-28 14:17:28
2 2012-03-28 14:50:50
Name: I_DATE, dtype: datetime64[ns]
To access the date/day/time component use the dt
accessor:
In [54]:
df['I_DATE'].dt.date
Out[54]:
0 2012-03-28
1 2012-03-28
2 2012-03-28
dtype: object
In [56]:
df['I_DATE'].dt.time
Out[56]:
0 14:15:00
1 14:17:28
2 14:50:50
dtype: object
You can use strings to filter as an example:
In [59]:
df = pd.DataFrame({'date':pd.date_range(start = dt.datetime(2015,1,1), end = dt.datetime.now())})
df[(df['date'] > '2015-02-04') & (df['date'] < '2015-02-10')]
Out[59]:
date
35 2015-02-05
36 2015-02-06
37 2015-02-07
38 2015-02-08
39 2015-02-09
You could use an instance of the csv
module's Sniffer
class to deduce the format of a CSV file and detect whether a header row is present along with the built-in next()
function to skip over the first row only when necessary:
import csv
with open('all16.csv', 'r', newline='') as file:
has_header = csv.Sniffer().has_header(file.read(1024))
file.seek(0) # Rewind.
reader = csv.reader(file)
if has_header:
next(reader) # Skip header row.
column = 1
datatype = float
data = (datatype(row[column]) for row in reader)
least_value = min(data)
print(least_value)
Since datatype
and column
are hardcoded in your example, it would be slightly faster to process the row
like this:
data = (float(row[1]) for row in reader)
Note: the code above is for Python 3.x. For Python 2.x use the following line to open the file instead of what is shown:
with open('all16.csv', 'rb') as file:
If anyone like me is searching to read only a specific line, example only line 18 here is the code:
filename = "C:\log.log"
Set fso = CreateObject("Scripting.FileSystemObject")
Set f = fso.OpenTextFile(filename)
For i = 1 to 17
f.ReadLine
Next
strLine = f.ReadLine
Wscript.Echo strLine
f.Close
<meta property="og:title" content="Ali Umair"/>
<meta property="og:description" content="Ali UMair is a web developer"/><meta property="og:image" content="../image" />
<a target="_blank" href="https://plus.google.com/share?url=<? echo urlencode('http://www..'); ?>"><img src="../gplus-black_icon.png" alt="" /></a>
this code will work with image text and description please put meta into head tag
Excel has no way of gathering that attribute with it's built-in functions. If you're willing to use some VB, all your color-related questions are answered here:
http://www.cpearson.com/excel/colors.aspx
Example form the site:
The SumColor function is a color-based analog of both the SUM and SUMIF function. It allows you to specify separate ranges for the range whose color indexes are to be examined and the range of cells whose values are to be summed. If these two ranges are the same, the function sums the cells whose color matches the specified value. For example, the following formula sums the values in B11:B17 whose fill color is red.
=SUMCOLOR(B11:B17,B11:B17,3,FALSE)
in solution explorer just right click and select convert to web application. It will generate all the designer files again.
I tried the below and it worked well,
Install Dimensions Data Model and OLE DB Access
and follow the below steps in excel
Data->Get External Data ->From Other sources -> From Data Connection Wizard -> Other/Advanced-> SPSS MR DM-2 OLE DB Provider-> Metadata type as SPSS File(SAV)-> SPSS data file in Metadata Location->Finish
Swift 3 :
var rotationAnimation = CABasicAnimation()
rotationAnimation = CABasicAnimation.init(keyPath: "transform.rotation.z")
rotationAnimation.toValue = NSNumber(value: (M_PI * 2.0))
rotationAnimation.duration = 2.0
rotationAnimation.isCumulative = true
rotationAnimation.repeatCount = 10.0
view.layer.add(rotationAnimation, forKey: "rotationAnimation")
~/.subversion/config
or
/etc/subversion/config
for Mac/Linux
and
%appdata%\subversion\config
for Windows
this.getClass().getClassLoader().getResource("").getPath()
You are looking for scipy.misc.toimage
:
import scipy.misc
rgb = scipy.misc.toimage(np_array)
It seems to be also in scipy 1.0, but has a deprecation warning. Instead, you can use pillow
and PIL.Image.fromarray
If you want to be able to specify the seed, you just need to replace the calls to getSeconds()
and getMinutes()
. You could pass in an int and use half of it mod 60 for the seconds value and the other half modulo 60 to give you the other part.
That being said, this method looks like garbage. Doing proper random number generation is very hard. The obvious problem with this is that the random number seed is based on seconds and minutes. To guess the seed and recreate your stream of random numbers only requires trying 3600 different second and minute combinations. It also means that there are only 3600 different possible seeds. This is correctable, but I'd be suspicious of this RNG from the start.
If you want to use a better RNG, try the Mersenne Twister. It is a well tested and fairly robust RNG with a huge orbit and excellent performance.
EDIT: I really should be correct and refer to this as a Pseudo Random Number Generator or PRNG.
"Anyone who uses arithmetic methods to produce random numbers is in a state of sin."
--- John von Neumann
VertigoRay, in his answer, explained that -Exclude works only at the leaf level of a path (for a file the filename with path stripped out; for a sub-directory the directory name with path stripped out). So it looks like -Exclude cannot be used to specify a directory (eg "bin") and exclude all the files and sub-directories within that directory.
Here's a function to exclude files and sub-directories of one or more directories (I know this is not directly answering the question but I thought it might be useful in getting around the limitations of -Exclude):
$rootFolderPath = 'C:\Temp\Test'
$excludeDirectories = ("bin", "obj");
function Exclude-Directories
{
process
{
$allowThrough = $true
foreach ($directoryToExclude in $excludeDirectories)
{
$directoryText = "*\" + $directoryToExclude
$childText = "*\" + $directoryToExclude + "\*"
if (($_.FullName -Like $directoryText -And $_.PsIsContainer) `
-Or $_.FullName -Like $childText)
{
$allowThrough = $false
break
}
}
if ($allowThrough)
{
return $_
}
}
}
Clear-Host
Get-ChildItem $rootFolderPath -Recurse `
| Exclude-Directories
For a directory tree:
C:\Temp\Test\
|
+?SomeFolder\
| |
| +?bin (file without extension)
|
+?MyApplication\
|
+?BinFile.txt
+?FileA.txt
+?FileB.txt
|
+?bin\
|
+?Debug\
|
+?SomeFile.txt
The result is:
C:\Temp\Test\
|
+?SomeFolder\
| |
| +?bin (file without extension)
|
+?MyApplication\
|
+?BinFile.txt
+?FileA.txt
+?FileB.txt
It excludes the bin\ sub-folder and all its contents but does not exclude files Bin.txt or bin (file named "bin" without an extension).
Two digits: simple function in case you need two or more digits of a number with ECMAScript 6 (ES6):
const zeroDigit = num => num.toString().length === 1 ? `0${num}` : num;
First backup the database. Then drop any foreign key associated with the table. truncate the foreign key table.Truncate the current table. Remove the required primary keys. Use sqlyog or workbench or heidisql or dbeaver or phpmyadmin.
make sure the bind address configuration option in the my.cnf file in /etc/ is the same with localhost or virtual serve ip address. plus check to make sure that the directory for creating the socket file is well specified.
Go to Start and search for "Anaconda Prompt" - right click this and choose "Open File Location", which will open a folder of shortcuts. Right click the "Anaconda Prompt" shortcut, choose "Properties" and you can adjust the starting dir in the "Start in" box.
This is a bad way of doing it, but it worked for me when trying to interpret escaped octals passed in a string argument.
input_string = eval('b"' + sys.argv[1] + '"')
It's worth mentioning that there is a difference between eval and ast.literal_eval (eval being way more unsafe). See Using python's eval() vs. ast.literal_eval()?
As already noted in a previous answer, this situation may arise due to line-ending problems (CR/LF vs. LF). I solved this problem (under Git version 2.22.0) with this command:
git add --renormalize .
According to the manual:
--renormalize
Apply the "clean" process freshly to all tracked files to
forcibly add them again to the index. This is useful after
changing core.autocrlf configuration or the text attribute in
order to correct files added with wrong CRLF/LF line endings.
This option implies -u.
You may use Oracle pipelined functions
Basically, when you would like a PLSQL (or java or c) routine to be the «source» of data -- instead of a table -- you would use a pipelined function.
Simple Example - Generating Some Random Data
How could you create N unique random numbers depending on the input argument?
create type array
as table of number;
create function gen_numbers(n in number default null)
return array
PIPELINED
as
begin
for i in 1 .. nvl(n,999999999)
loop
pipe row(i);
end loop;
return;
end;
Suppose we needed three rows for something. We can now do that in one of two ways:
select * from TABLE(gen_numbers(3));
COLUMN_VALUE
1
2
3
or
select * from TABLE(gen_numbers)
where rownum <= 3;
COLUMN_VALUE
1
2
3
Using Guava's Maps class' utility methods to compute the difference of 2 maps you can do it in a single line, with a method signature which makes it more clear what you are trying to accomplish:
public static void main(final String[] args) {
// Create some maps
final Map<Integer, String> map1 = new HashMap<Integer, String>();
map1.put(1, "Hello");
map1.put(2, "There");
final Map<Integer, String> map2 = new HashMap<Integer, String>();
map2.put(2, "There");
map2.put(3, "is");
map2.put(4, "a");
map2.put(5, "bird");
// Add everything in map1 not in map2 to map2
map2.putAll(Maps.difference(map1, map2).entriesOnlyOnLeft());
}
First I would suggest putting a Log in each case of your switch to be sure that your code is being called.
Then I would check that the layouts are actually different.
for i in *.zip; do
newdir="${i:0:-4}" && mkdir "$newdir"
unzip "$i" -d "$newdir"
done
This will unzip all the zip archives into new folders named with the filenames of the zip archives.
a.zip
b.zip
c.zip
will be unzipped into a
b
c
folders respectively.
You can try -Xbootclasspath/a:path option of java application launcher. By description it specifies "a colon-separated path of directires, JAR archives, and ZIP archives to append to the default bootstrap class path."
Look for an installation subdirectory, likely named eclipse. Under that subdirectory, if you see files like eclipse.ini, icon.xpm and subdirectories like plugins and dropins, remove the subdirectory parent (the one named eclipse).
That will remove your installation except for anything you've set up yourself (like workspaces, projects, etc.).
Hope this helps.
For completeness/interest I'd like to add that matlab does have a function that allows you to operate on data per-row rather than per-element. It is called rowfun
(http://www.mathworks.se/help/matlab/ref/rowfun.html), but the only "problem" is that it operates on tables (http://www.mathworks.se/help/matlab/ref/table.html) rather than matrices.
Merging using an extension method. It does not throw exception when there are duplicate keys, but replaces those keys with keys from the second dictionary.
internal static class DictionaryExtensions
{
public static Dictionary<T1, T2> Merge<T1, T2>(this Dictionary<T1, T2> first, Dictionary<T1, T2> second)
{
if (first == null) throw new ArgumentNullException("first");
if (second == null) throw new ArgumentNullException("second");
var merged = new Dictionary<T1, T2>();
first.ToList().ForEach(kv => merged[kv.Key] = kv.Value);
second.ToList().ForEach(kv => merged[kv.Key] = kv.Value);
return merged;
}
}
Usage:
Dictionary<string, string> merged = first.Merge(second);
If you are going by android guide lines and you are using the ContentProviders
to get data from Database
and you are displaying it in the ListView
using the CursorLoader
and CursorAdapters
,then you all changes to the related data will automatically be reflected in the ListView.
Your getContext().getContentResolver().notifyChange(uri, null);
on the cursor in the ContentProvider
will be enough to reflect the changes .No need for the extra work around.
But when you are not using these all then you need to tell the adapter when the dataset is changing. Also you need to re-populate / reload your dataset (say list) and then you need to call notifyDataSetChanged()
on the adapter.
notifyDataSetChanged()
wont work if there is no the changes in the datset.
Here is the comment above the method in docs-
/**
* Notifies the attached observers that the underlying data has been changed
* and any View reflecting the data set should refresh itself.
*/
Or just put this in a Javascript file and have a good day :)
String.prototype.includes = function (str) {
var returnValue = false;
if (this.indexOf(str) !== -1) {
returnValue = true;
}
return returnValue;
}
For MySQL:
SELECT *
FROM permlog
ORDER BY id DESC
LIMIT 1
You want to sort the rows from highest to lowest id
, hence the ORDER BY id DESC
. Then you just want the first one so LIMIT 1
:
The LIMIT clause can be used to constrain the number of rows returned by the SELECT statement.
[...]
With one argument, the value specifies the number of rows to return from the beginning of the result set
string input = "User name (sales)";
string output = input.Substring(input.IndexOf('(') + 1, input.IndexOf(')') - input.IndexOf('(') - 1);
Change your port number to 587 from 465
The Python executable might be installed at a location other than /usr/bin, but env
is nearly always present in that location so using /usr/bin/env
is more portable.
Technically a Tier can be a kind of minimum environment required for the code to run.
E.g. hypothetically a 3-tier app can be running on
1 physical machine with 3 virtual machines with no OS.
(That was a 3-(hardware)tier app)
1 physical machine with 3 virtual machines with 3 different/same OSes
(That was a 3-(OS)tier app)
1 physical machine with 1 virtual machine with 1 OS but 3 AppServers
(That was a 3-(AppServer)tier app)
1 physical machine with 1 virtual machine with 1 OS with 1 AppServer but 3 DBMS
(That was a 3-(DBMS)tier app)
1 physical machine with 1 virtual machine with 1 OS with 1 AppServers and 1 DBMS but 3 Excel workbooks.
(That was a 3-(AppServer)tier app)
Excel workbook is the minimum required environment for VBA code to run.
Those 3 workbooks can sit on a single physical computer or multiple.
I have noticed that in practice people mean "OS Tier" when they say "Tier" in the app description context.
That is if an app runs on 3 separate OS then its a 3-Tier app.
So a pedantically correct way describing an app would be
"1-to-3-Tier capable, running on 2 Tiers" app.
:)
Layers are just types of code in respect to the functional separation of duties withing the app (e.g. Presentation, Data , Security etc.)
A basic implementation would be something like this:
public class Test {
public static void main(String[] args) {
int[] input = new int[] { 0x1234, 0x5678, 0x9abc };
byte[] output = new byte[input.length * 2];
for (int i = 0, j = 0; i < input.length; i++, j+=2) {
output[j] = (byte)(input[i] & 0xff);
output[j+1] = (byte)((input[i] >> 8) & 0xff);
}
for (int i = 0; i < output.length; i++)
System.out.format("%02x\n",output[i]);
}
}
In order to understand things you can read this WP article: http://en.wikipedia.org/wiki/Endianness
The above source code will output 34 12 78 56 bc 9a
. The first 2 bytes (34 12
) represent the first integer, etc. The above source code encodes integers in little endian format.
try {
var data = {foo: "bar"};
res.json(JSON.stringify(data));
}
catch (e) {
res.status(500).json(JSON.stringify(e));
}
As commented by David Thomas, descendants of those child elements will (likely) inherit most of the styles assigned to those child elements.
You need to wrap your .myTestClass
inside an element and apply the styles to descendants by adding .wrapper *
descendant selector. Then, add .myTestClass > *
child selector to apply the style to the elements children, not its grand children. For example like this:
JSFiddle - DEMO
.wrapper * {_x000D_
color: blue;_x000D_
margin: 0 100px; /* Only for demo */_x000D_
}_x000D_
.myTestClass > * {_x000D_
color:red;_x000D_
margin: 0 20px;_x000D_
}
_x000D_
<div class="wrapper">_x000D_
<div class="myTestClass">Text 0_x000D_
<div>Text 1</div>_x000D_
<span>Text 1</span>_x000D_
<div>Text 1_x000D_
<p>Text 2</p>_x000D_
<div>Text 2</div>_x000D_
</div>_x000D_
<p>Text 1</p>_x000D_
</div>_x000D_
<div>Text 0</div>_x000D_
</div>
_x000D_
To make a sticky nav you need to add the class navbar-fixed-top to your nav
Official documentation:
http://getbootstrap.com/components/#navbar-fixed-top
Official example:
http://getbootstrap.com/examples/navbar-fixed-top/
A simple example code:
<nav class="navbar navbar-default navbar-fixed-top" role="navigation">
<div class="container">
...
</div>
</nav>
with related jsfiddle: http://jsfiddle.net/ur7t8/
If you want the nav bar to resize while you scroll the page you can give a look to this example: http://www.bootply.com/109943
JS
$(window).scroll(function() {
if ($(document).scrollTop() > 50) {
$('nav').addClass('shrink');
} else {
$('nav').removeClass('shrink');
}
});
CSS
nav.navbar.shrink {
min-height: 35px;
}
To add an animation while you scroll, all you need to do is set a transition on the nav
CSS
nav.navbar{
background-color:#ccc;
// Animation
-webkit-transition: all 0.4s ease;
transition: all 0.4s ease;
}
I made a jsfiddle with the full example code: http://jsfiddle.net/Filo/m7yww8oa/
values\styles.xml
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
<style name="RedAccentButton" parent="ThemeOverlay.AppCompat.Light">
<item name="colorAccent">#ff0000</item>
</style>
then:
<Button
style="@style/Widget.AppCompat.Button.Colored"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="text" />
<Button
style="@style/Widget.AppCompat.Button.Colored"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:enabled="false"
android:text="text" />
<Button
style="@style/Widget.AppCompat.Button.Colored"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="text"
android:theme="@style/RedAccentButton" />
<Button
style="@style/Widget.AppCompat.Button.Colored"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:enabled="false"
android:text="text"
android:theme="@style/RedAccentButton" />
event.target
returns the node that was targeted by the function. This means you can do anything you want to do with any other node like one you'd get from document.getElementById
I'm tried with jQuery
var _target = e.target;
console.log(_target.attr('href'));
Return an error :
.attr not function
But _target.attributes.href.value
was works.
Although there are many ways to do this. But if you want to do it in an easy way and want to format text before writing it to log file. You can create a helper function for this.
if (!function_exists('logIt')) {
function logIt($logMe)
{
$logFilePath = storage_path('logs/cron.log.'.date('Y-m-d').'.log');
$cronLogFile = fopen($logFilePath, "a");
fwrite($cronLogFile, date('Y-m-d H:i:s'). ' : ' .$logMe. PHP_EOL);
fclose($cronLogFile);
}
}
You can use "\n" in Paragraph
document.add(new Paragraph("\n\n"));
I ran into this error trying to run the profiler, even though my connection had Trust server certificate checked and I added TrustServerCertificate=True
in the Advanced Section. I changed to an instance of SSMS running as administrator and the profiler started with no problem. (I previously had found that when my connections even to local took a long time to connect, running as administrator helped).
To handle this situation in a portable way (ie will work on all databases because it doesn’t use MySQL label Kung fu), break the procedure up into logic parts, like this:
CREATE PROCEDURE SP_Reporting(IN tablename VARCHAR(20))
BEGIN
IF tablename IS NOT NULL THEN
CALL SP_Reporting_2(tablename);
END IF;
END;
CREATE PROCEDURE SP_Reporting_2(IN tablename VARCHAR(20))
BEGIN
#proceed with code
END;
SimpleDateFormat newDateFormat = new SimpleDateFormat("dd/MM/yyyy");
Date myDate = newDateFormat.parse("28/12/2013");
newDateFormat.applyPattern("yyyy/MM/dd")
String myDateString = newDateFormat.format(myDate);
Now MyDate = 2013/12/28
There is a fairly simple answer with powershell.
Import-PfxCertificate -Password $secure_pw -CertStoreLocation Cert:\LocalMachine\Root -FilePath certs.pfx
The trick is making a "secure" password...
$plaintext_pw = 'PASSWORD';
$secure_pw = ConvertTo-SecureString $plaintext_pw -AsPlainText -Force;
Import-PfxCertificate -Password $secure_pw -CertStoreLocation Cert:\LocalMachine\Root -FilePath certs.pfx;
I solved the same problem without the temp table/view and with dataframe functions.
Of course I found that only one format works with this solution and that's yyyy-MM-DD
.
For example:
val df = sc.parallelize(Seq("2016-08-26")).toDF("Id")
val df2 = df.withColumn("Timestamp", (col("Id").cast("timestamp")))
val df3 = df2.withColumn("Date", (col("Id").cast("date")))
df3.printSchema
root
|-- Id: string (nullable = true)
|-- Timestamp: timestamp (nullable = true)
|-- Date: date (nullable = true)
df3.show
+----------+--------------------+----------+
| Id| Timestamp| Date|
+----------+--------------------+----------+
|2016-08-26|2016-08-26 00:00:...|2016-08-26|
+----------+--------------------+----------+
The timestamp of course has 00:00:00.0
as a time value.
In many linux release, you can find complier.h in /usr/linux/ , you can include it for use simply. And another opinion, unlikely() is more useful rather than likely(), because
if ( likely( ... ) ) {
doSomething();
}
it can be optimized as well in many compiler.
And by the way, if you want to observe the detail behavior of the code, you can do simply as follow:
gcc -c test.c objdump -d test.o > obj.s
Then, open obj.s, you can find the answer.
What about
import operator
auths = Author.objects.order_by('-score')[:30]
ordered = sorted(auths, key=operator.attrgetter('last_name'))
In Django 1.4 and newer you can order by providing multiple fields.
Reference: https://docs.djangoproject.com/en/dev/ref/models/querysets/#order-by
order_by(*fields)
By default, results returned by a QuerySet
are ordered by the ordering tuple given by the ordering
option in the model’s Meta. You can override this on a per-QuerySet basis by using the order_by
method.
Example:
ordered_authors = Author.objects.order_by('-score', 'last_name')[:30]
The result above will be ordered by score
descending, then by last_name
ascending. The negative sign in front of "-score"
indicates descending order. Ascending order is implied.
Script 1: without setting -e
#!/bin/bash
decho "hi"
echo "hello"
This will throw error in decho and program continuous to next line
Script 2: With setting -e
#!/bin/bash
set -e
decho "hi"
echo "hello"
# Up to decho "hi" shell will process and program exit, it will not proceed further
So I haven't been able to get the Mesh Colliders to work. I created a composite collider using simple box colliders and it worked exactly as expected.
Other tests with simple Mesh Colliders have come out the same.
It looks like the best answer is to build a composite collider out of simple box/sphere colliders.
For my specific case I wrote a Wizard that creates a Pipe shaped compound collider.
@script AddComponentMenu("Colliders/Pipe Collider");
class WizardCreatePipeCollider extends ScriptableWizard
{
public var outterRadius : float = 200;
public var innerRadius : float = 190;
public var sections : int = 12;
public var height : float = 20;
@MenuItem("GameObject/Colliders/Create Pipe Collider")
static function CreateWizard()
{
ScriptableWizard.DisplayWizard.<WizardCreatePipeCollider>("Create Pipe Collider");
}
public function OnWizardUpdate() {
helpString = "Creates a Pipe Collider";
}
public function OnWizardCreate() {
var theta : float = 360f / sections;
var width : float = outterRadius - innerRadius;
var sectionLength : float = 2 * outterRadius * Mathf.Sin((theta / 2) * Mathf.Deg2Rad);
var container : GameObject = new GameObject("Pipe Collider");
var section : GameObject;
var sectionCollider : GameObject;
var boxCollider : BoxCollider;
for(var i = 0; i < sections; i++)
{
section = new GameObject("Section " + (i + 1));
sectionCollider = new GameObject("SectionCollider " + (i + 1));
section.transform.parent = container.transform;
sectionCollider.transform.parent = section.transform;
section.transform.localPosition = Vector3.zero;
section.transform.localRotation.eulerAngles.y = i * theta;
boxCollider = sectionCollider.AddComponent.<BoxCollider>();
boxCollider.center = Vector3.zero;
boxCollider.size = new Vector3(width, height, sectionLength);
sectionCollider.transform.localPosition = new Vector3(innerRadius + (width / 2), 0, 0);
}
}
}
To use the fastboot command you first need to put your device in fastboot mode:
$ adb reboot bootloader
Once the device is in fastboot mode, you can boot it with your own kernel, for example:
$ fastboot boot myboot.img
The above will only boot your kernel once and the old kernel will be used again when you reboot the device. To replace the kernel on the device, you will need to flash it to the device:
$ fastboot flash boot myboot.img
Hope that helps.
I got it working by doing it the other way around. Starting with an empty repo, adding the submodule in a new folder called "projectfolder/common_code". After that it was possible to add the project code in projectfolder. The details are shown below.
In an empty repo type:
git submodule add url_to_repo projectfolder/common_code
That will create the desired folder structure:
repo
|-- projectfolder
|-- common_code
It is now possible to add more submodules, and the project code can be added to projectfolder.
I can't yet say why it worked this way around and not the other.
Git 1.8.2 features a new option, --remote
, that will enable exactly this behavior. Running
git submodule update --remote --merge
will fetch the latest changes from upstream in each submodule, merge them in, and check out the latest revision of the submodule. As the documentation puts it:
--remote
This option is only valid for the update command. Instead of using the superproject’s recorded SHA-1 to update the submodule, use the status of the submodule’s remote-tracking branch.
This is equivalent to running git pull
in each submodule, which is generally exactly what you want.
In order to encode +
value using JavaScript, you can use encodeURIComponent
function.
Example:
var url = "+11";
var encoded_url = encodeURIComponent(url);
console.log(encoded_url)
_x000D_
you can use plt.matshow()
instead of plt.imshow()
or you can use seaborn module's heatmap
(see documentation) to plot the confusion matrix
import seaborn as sn
import pandas as pd
import matplotlib.pyplot as plt
array = [[33,2,0,0,0,0,0,0,0,1,3],
[3,31,0,0,0,0,0,0,0,0,0],
[0,4,41,0,0,0,0,0,0,0,1],
[0,1,0,30,0,6,0,0,0,0,1],
[0,0,0,0,38,10,0,0,0,0,0],
[0,0,0,3,1,39,0,0,0,0,4],
[0,2,2,0,4,1,31,0,0,0,2],
[0,1,0,0,0,0,0,36,0,2,0],
[0,0,0,0,0,0,1,5,37,5,1],
[3,0,0,0,0,0,0,0,0,39,0],
[0,0,0,0,0,0,0,0,0,0,38]]
df_cm = pd.DataFrame(array, index = [i for i in "ABCDEFGHIJK"],
columns = [i for i in "ABCDEFGHIJK"])
plt.figure(figsize = (10,7))
sn.heatmap(df_cm, annot=True)
Niyaz is correct, but it's also worth noting that the special + operator can be converted into something more efficient by the Java compiler. Java has a StringBuilder class which represents a non-thread-safe, mutable String. When performing a bunch of String concatenations, the Java compiler silently converts
String a = b + c + d;
into
String a = new StringBuilder(b).append(c).append(d).toString();
which for large strings is significantly more efficient. As far as I know, this does not happen when you use the concat method.
However, the concat method is more efficient when concatenating an empty String onto an existing String. In this case, the JVM does not need to create a new String object and can simply return the existing one. See the concat documentation to confirm this.
So if you're super-concerned about efficiency then you should use the concat method when concatenating possibly-empty Strings, and use + otherwise. However, the performance difference should be negligible and you probably shouldn't ever worry about this.
Brother you don't need to set class path just follow these simple steps (I use Apache NetBeans)
Steps:
extract the jar file which you want to add in your project.
only copy those packages (folder) which you need in the project. (do not copy manifest file)
open the main project jar file(dist/file.jar) with WinRAR.
paste that folder or package in the main project jar file.
Those packages work 100% in your project.
warning: Do not make any changes in the manifest file.
Another method:
we need to move lib folder in dist folder.then we set class path from manifest.mf file of main jar file.
Edit the manifest.mf And ADD this type of line
Warning: lib folder must be inside the dist folder otherwise jar file do not access your lib folder jar files
http://jsfiddle.net/b9chris/zN39r/
HTML:
<div class="item row">
<div class="col-xs-12 col-sm-6"><h4>This is some text.</h4></div>
<div class="col-xs-12 col-sm-6"><h4>This is some more.</h4></div>
</div>
CSS:
div.item div h4 {
height: 60px;
vertical-align: middle;
display: table-cell;
}
Important notes:
vertical-align: middle; display: table-cell;
must be applied to a tag that has no Bootstrap classes applied; it cannot be a col-*
, a row
, etc.row
or col-*
tags.http://jsfiddle.net/b9chris/zN39r/1/
CSS:
div.item div {
background: #fdd;
table-layout: fixed;
display: table;
}
div.item div h4 {
height: 60px;
vertical-align: middle;
display: table-cell;
background: #eee;
}
Notice the added table-layout and display properties on the col-*
tags. This must be applied to the tag(s) that have col-*
applied; it won't help on other tags.
For Data access you can use OData. Here is a demo where Scott Hanselman creates an OData front end to StackOverflow database in 30 minutes, with XML and JSON access: Creating an OData API for StackOverflow including XML and JSON in 30 minutes.
For administrative access, like phpMyAdmin package, there is no well established one. You may give a try to IIS Database Manager.
Primitives are passed by value, and Objects are passed by "copy of a reference".
Specifically, when you pass an object (or array) you are (invisibly) passing a reference to that object, and it is possible to modify the contents of that object, but if you attempt to overwrite the reference it will not affect the copy of the reference held by the caller - i.e. the reference itself is passed by value:
function replace(ref) {
ref = {}; // this code does _not_ affect the object passed
}
function update(ref) {
ref.key = 'newvalue'; // this code _does_ affect the _contents_ of the object
}
var a = { key: 'value' };
replace(a); // a still has its original value - it's unmodfied
update(a); // the _contents_ of 'a' are changed
An alternative would be to have a middleware script just for critical API endpoints.
This middleware script would check in the database if the token is invalidated by an admin.
This solution may be useful for cases where is not necessary to completely block the access of a user right away.
You can also try this to get the text.
foo.encode('ascii', 'ignore')
I solved this problem temporary by disabling the dfs permission.By adding below property code to conf/hdfs-site.xml
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
If it instead returned Option[QueueObject]
you could use a construct like getObject.foreach { QueueManager.add }
. You can wrap it right inline with Option(getObject).foreach ...
because Option[QueueObject](null)
is None
.
Just add Axios.defaults.withCredentials=true
instead of ({credentials: true}
) in client side,
and change app.use(cors())
to
app.use(cors(
{origin: ['your client side server'],
methods: ['GET', 'POST'],
credentials:true,
}
))
I think you probably want to view the minification of each set of css as a separate task
task minifyBrandACss(type: com.eriwen.gradle.css.tasks.MinifyCssTask) {
source = "src/main/webapp/css/brandA/styles.css"
dest = "${buildDir}/brandA/styles.css"
}
etc etc
BTW executing your minify tasks in an action of the war task seems odd to me - wouldn't it make more sense to make them a dependency of the war task?
SET A uses short-circuiting boolean operators.
What 'short-circuiting' means in the context of boolean operators is that for a set of booleans b1, b2, ..., bn, the short circuit versions will cease evaluation as soon as the first of these booleans is true (||) or false (&&).
For example:
// 2 == 2 will never get evaluated because it is already clear from evaluating
// 1 != 1 that the result will be false.
(1 != 1) && (2 == 2)
// 2 != 2 will never get evaluated because it is already clear from evaluating
// 1 == 1 that the result will be true.
(1 == 1) || (2 != 2)
In jQuery I mostly use:
$("#element").trigger("change");
I know this doesn't really answer your question, but different View Engines have different purposes. The Spark View Engine, for example, aims to rid your views of "tag soup" by trying to make everything fluent and readable.
Your best bet would be to just look at some implementations. If it looks appealing to the intent of your solution, try it out. You can mix and match view engines in MVC, so it shouldn't be an issue if you decide to not go with a specific engine.
For others who use spring-boot, java based configuration,
I set the schema value in application.properties
spring.jpa.properties.hibernate.dialect=...
spring.jpa.properties.hibernate.default_schema=...
use DECIMAL()
or NUMERIC()
as they are fixed precision and scale numbers.
SELECT fullName,
CAST(totalBal as DECIMAL(9,2)) _totalBal
FROM client_info
ORDER BY _totalBal DESC
If you're changing over from an existing app you made in django 1.6, then you need to do one pre-step (as I found out) listed in the documentation:
python manage.py makemigrations your_app_label
The documentation does not make it obvious that you need to add the app label to the command, as the first thing it tells you to do is python manage.py makemigrations
which will fail. The initial migration is done when you create your app in version 1.7, but if you came from 1.6 it wouldn't have been carried out. See the 'Adding migration to apps' in the documentation for more details.
For me the following works good. Just add it. You can edit it as per your requirement. This is just a nice trick I use.
text-shadow : 0 0 0 #your-font-color;
well the simplest answer i tried is just remove your code which makes the activity go full screen .I had a code like this which was responsible for making my activity go fullscreen :
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS,
WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
}
i just removed my code and it works completely fine although if you want to achieve this with your fullscreen on then you'll have to try some other methods
Pass 65536
to mysql_connect
as 5th parameter.
Example:
$conn = mysql_connect('localhost','username','password', true, 65536 /* here! */)
or die("cannot connect");
mysql_select_db('database_name') or die("cannot use database");
mysql_query("
INSERT INTO table1 (field1,field2) VALUES(1,2);
INSERT INTO table2 (field3,field4,field5) VALUES(3,4,5);
DELETE FROM table3 WHERE field6 = 6;
UPDATE table4 SET field7 = 7 WHERE field8 = 8;
INSERT INTO table5
SELECT t6.field11, t6.field12, t7.field13
FROM table6 t6
INNER JOIN table7 t7 ON t7.field9 = t6.field10;
-- etc
");
When you are working with mysql_fetch_* or mysql_num_rows, or mysql_affected_rows, only the first statement is valid.
For example, the following codes, the first statement is INSERT, you cannot execute mysql_num_rows and mysql_fetch_*. It is okay to use mysql_affected_rows to return how many rows inserted.
$conn = mysql_connect('localhost','username','password', true, 65536) or die("cannot connect");
mysql_select_db('database_name') or die("cannot use database");
mysql_query("
INSERT INTO table1 (field1,field2) VALUES(1,2);
SELECT * FROM table2;
");
Another example, the following codes, the first statement is SELECT, you cannot execute mysql_affected_rows. But you can execute mysql_fetch_assoc to get a key-value pair of row resulted from the first SELECT statement, or you can execute mysql_num_rows to get number of rows based on the first SELECT statement.
$conn = mysql_connect('localhost','username','password', true, 65536) or die("cannot connect");
mysql_select_db('database_name') or die("cannot use database");
mysql_query("
SELECT * FROM table2;
INSERT INTO table1 (field1,field2) VALUES(1,2);
");
userIdeaUC = userIdea.substring(0, 1).toUpperCase() + userIdea.length() > 1 ? userIdea.substring(1) : "";
or
userIdeaUC = userIdea.substring(0, 1).toUpperCase();
if(userIdea.length() > 1)
userIdeaUC += userIdea.substring(1);
With
void DoWork(int n);
n
is a copy of the value of the actual parameter, and it is legal to change the value of n
within the function. With
void DoWork(const int &n);
n
is a reference to the actual parameter, and it is not legal to change its value.
You have incorrectly specified the contentType
to application/json
.
Here's an example of how this might work.
Controller:
public class HomeController : Controller
{
public ActionResult Index()
{
return View();
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Index(string someValue)
{
return Json(new { someValue = someValue });
}
}
View:
@using (Html.BeginForm(null, null, FormMethod.Post, new { id = "__AjaxAntiForgeryForm" }))
{
@Html.AntiForgeryToken()
}
<div id="myDiv" data-url="@Url.Action("Index", "Home")">
Click me to send an AJAX request to a controller action
decorated with the [ValidateAntiForgeryToken] attribute
</div>
<script type="text/javascript">
$('#myDiv').submit(function () {
var form = $('#__AjaxAntiForgeryForm');
var token = $('input[name="__RequestVerificationToken"]', form).val();
$.ajax({
url: $(this).data('url'),
type: 'POST',
data: {
__RequestVerificationToken: token,
someValue: 'some value'
},
success: function (result) {
alert(result.someValue);
}
});
return false;
});
</script>
It depends on your mark-up, but it can certainly be made to work, I used the following:
$(document).ready(
function() {
$('td p').slideUp();
$('td h2').click(
function(){
$(this).siblings('p').slideToggle();
}
);
}
);
<table>
<thead>
<tr>
<th>Actor</th>
<th>Which Doctor</th>
<th>Significant companion</th>
</tr>
</thead>
<tbody>
<tr>
<td><h2>William Hartnell</h2></td>
<td><h2>First</h2><p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p></td>
<td><h2>Susan Foreman</h2><p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p></td>
</tr>
<tr>
<td><h2>Patrick Troughton</h2></td>
<td><h2>Second</h2><p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p></td>
<td><h2>Jamie MacCrimmon</h2><p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p></td>
</tr>
<tr>
<td><h2>Jon Pertwee</h2></td>
<td><h2>Third</h2><p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p></td>
<td><h2>Jo Grant</h2><p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p></td>
</tr>
</tbody>
</table>
The way I approached it is to collapse specific elements within the cells of the row, so that, in my case, the row would slideUp()
as the paragraphs were hidden, and still leave an element, h2
to click on in order to re-show the content. If the row collapsed entirely there'd be no easily obvious way to bring it back.
As @Peter Ajtai noted, in the comments, the above approach focuses on only one cell (though deliberately). To expand all the child p
elements this would work:
$(document).ready(
function() {
$('td p').slideUp();
$('td h2').click(
function(){
$(this).closest('tr').find('p').slideToggle();
}
);
}
);
Go to Project > properties > Debug Tab and set the Launch to "Project"
If you do
.headers ON
you will get the desired result.
If anyone is looking for a simple solution in Laravel 5.3:
timestamps()
be saved as is i.e. '2016-11-14 12:19:49'In your views, format the field as below (or as required):
date('F d, Y', strtotime($list->created_at))
It worked for me very well for me.
You can also use a regexp with re.sub
:
article_title_str = re.sub(r'(\s?-?\|?\s?Times of India|\s?-?\|?\s?the Times of India|\s?-?\|?\s+?Gadgets No'',
article_title_str, flags=re.IGNORECASE)
If you are looking for a one-size-fits-all, I'd suggest DECIMAL(19, 4)
is a popular choice (a quick Google bears this out). I think this originates from the old VBA/Access/Jet Currency data type, being the first fixed point decimal type in the language; Decimal
only came in 'version 1.0' style (i.e. not fully implemented) in VB6/VBA6/Jet 4.0.
The rule of thumb for storage of fixed point decimal values is to store at least one more decimal place than you actually require to allow for rounding. One of the reasons for mapping the old Currency
type in the front end to DECIMAL(19, 4)
type in the back end was that Currency
exhibited bankers' rounding by nature, whereas DECIMAL(p, s)
rounded by truncation.
An extra decimal place in storage for DECIMAL
allows a custom rounding algorithm to be implemented rather than taking the vendor's default (and bankers' rounding is alarming, to say the least, for a designer expecting all values ending in .5 to round away from zero).
Yes, DECIMAL(24, 8)
sounds like overkill to me. Most currencies are quoted to four or five decimal places. I know of situations where a decimal scale of 8 (or more) is required but this is where a 'normal' monetary amount (say four decimal places) has been pro rata'd, implying the decimal precision should be reduced accordingly (also consider a floating point type in such circumstances). And no one has that much money nowadays to require a decimal precision of 24 :)
However, rather than a one-size-fits-all approach, some research may be in order. Ask your designer or domain expert about accounting rules which may be applicable: GAAP, EU, etc. I vaguely recall some EU intra-state transfers with explicit rules for rounding to five decimal places, therefore using DECIMAL(p, 6)
for storage. Accountants generally seem to favour four decimal places.
PS Avoid SQL Server's MONEY
data type because it has serious issues with accuracy when rounding, among other considerations such as portability etc. See Aaron Bertrand's blog.
Microsoft and language designers chose banker's rounding because hardware designers chose it [citation?]. It is enshrined in the Institute of Electrical and Electronics Engineers (IEEE) standards, for example. And hardware designers chose it because mathematicians prefer it. See Wikipedia; to paraphrase: The 1906 edition of Probability and Theory of Errors called this 'the computer's rule' ("computers" meaning humans who perform computations).
Your .vimrc
file goes in your $HOME
directory. In *nix, cd ~; vim .vimrc
. The commands in the .vimrc
are the same as you type in ex-mode in vim, only without the leading colon, so colo evening
would suffice. Comments in the .vimrc
are indicated with a leading double-quote.
To see an example vimrc, open $VIMRUNTIME/vimrc_example.vim
from within vim
:e $VIMRUNTIME/vimrc_example.vim
You can use the -R option to find the files along with those inside the recursive directories
ls -R | wc -l // to find all the files
ls -R | grep log | wc -l // to find the files which contains the word log
you can use patterns on the grep
There's a free php script made by Celeron Dude that can do this called Celeron Dude Indexer 2. It doesn't require .htaccess
The source code is easy to understand and provides a good starting point.
Here's a download link: https://gitlab.com/desbest/celeron-dude-indexer/
Use dict.items(); it can be as simple as following:
ship = collections.OrderedDict(ship.items())
Even if that's a 7 years old question, people new to R should consider using the data.table, package.
A data.table is a data.frame so all you can do for/to a data.frame you can also do. But many think are ORDERS of magnitude faster with data.table.
vec <- 1:10
library(data.table)
DT <- data.table(start=c(1,3,5,7), end=c(2,6,7,9))
DT[,new:=apply(DT,1,function(row) mean(vec[ row[1] : row[2] ] ))]
Based on the doc
<div class="row">
<div class="span4 collapse-group">
<h2>Heading</h2>
<p class="collapse">Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
<p><a class="btn" href="#">View details »</a></p>
</div>
</div>
$('.row .btn').on('click', function(e) {
e.preventDefault();
var $this = $(this);
var $collapse = $this.closest('.collapse-group').find('.collapse');
$collapse.collapse('toggle');
});
Converting my comment into an answer to complement @Kiran Chala's answer as it seems helpful for the audiences-
When we mark a parameter as optional in the action uri using ?
character then we must provide default values to the parameters in the method signature as shown below:
MyMethod(string name = "someDefaultValue", int? Id = null)
@Ahmed
Below is code that specifies fields from a named range for insertion into MS Access. The nice thing about this code is that you can name your fields in Excel whatever the hell you want (If you use * then the fields have to match exactly between Excel and Access) as you can see I have named an Excel column "Haha" even though the Access column is called "dte".
Sub test()
dbWb = Application.ActiveWorkbook.FullName
dsh = "[" & Application.ActiveSheet.Name & "$]" & "Data2" 'Data2 is a named range
sdbpath = "C:\Users\myname\Desktop\Database2.mdb"
sCommand = "INSERT INTO [main] ([dte], [test1], [values], [values2]) SELECT [haha],[test1],[values],[values2] FROM [Excel 8.0;HDR=YES;DATABASE=" & dbWb & "]." & dsh
Dim dbCon As New ADODB.Connection
Dim dbCommand As New ADODB.Command
dbCon.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & sdbpath & "; Jet OLEDB:Database Password=;"
dbCommand.ActiveConnection = dbCon
dbCommand.CommandText = sCommand
dbCommand.Execute
dbCon.Close
End Sub
Jquery code which contains simple ajax :
$("#product").on("input", function(event) {
var data=$("#nameform").serialize();
$.post("./__partails/search-productbyCat.php",data,function(e){
$(".result").empty().append(e);
});
});
Html elements you can use any element:
<form id="nameform">
<input type="text" name="product" id="product">
</form>
php Code:
$pdo=new PDO("mysql:host=localhost;dbname=onlineshooping","root","");
$Catagoryf=$_POST['product'];
$pricef=$_POST['price'];
$colorf=$_POST['color'];
$stmtcat=$pdo->prepare('SELECT * from products where Catagory =?');
$stmtcat->execute(array($Catagoryf));
while($result=$stmtcat->fetch(PDO::FETCH_ASSOC)){
$iddb=$result['ID'];
$namedb=$result['Name'];
$pricedb=$result['Price'];
$colordb=$result['Color'];
echo "<tr>";
echo "<td><a href=./pages/productsinfo.php?id=".$iddb."> $namedb</a> </td>".'<br>';
echo "<td><pre>$pricedb</pre></td>";
echo "<td><pre> $colordb</pre>";
echo "</tr>";
The easy way
drop procedure if exists doWhile;
DELIMITER //
CREATE PROCEDURE doWhile()
BEGIN
DECLARE i INT DEFAULT 2376921001;
WHILE (i <= 237692200) DO
INSERT INTO `mytable` (code, active, total) values (i, 1, 1);
SET i = i+1;
END WHILE;
END;
//
CALL doWhile();
\usepackage{array}
in the preamble
then this:
\begin{tabular}{| >{\centering\arraybackslash}m{1in} | >{\centering\arraybackslash}m{1in} |}
note that the "m" for fixed with column is provided by the array package, and will give you vertical centering (if you don't want this just go back to "p"
Check if all the parameters of functions are defined before they are called. I faced this problem while practicing Kaggle.
Your code is working just fine, you have to declare javscript method before DOM ready.
Assuming you don't have extraneous whitespace:
with open('file') as f:
w, h = [int(x) for x in next(f).split()] # read first line
array = []
for line in f: # read rest of lines
array.append([int(x) for x in line.split()])
You could condense the last for loop into a nested list comprehension:
with open('file') as f:
w, h = [int(x) for x in next(f).split()]
array = [[int(x) for x in line.split()] for line in f]
struct Rect
{
Rect(int x1, int x2, int y1, int y2)
: x1(x1), x2(x2), y1(y1), y2(y2)
{
assert(x1 < x2);
assert(y1 < y2);
}
int x1, x2, y1, y2;
};
bool
overlap(const Rect &r1, const Rect &r2)
{
// The rectangles don't overlap if
// one rectangle's minimum in some dimension
// is greater than the other's maximum in
// that dimension.
bool noOverlap = r1.x1 > r2.x2 ||
r2.x1 > r1.x2 ||
r1.y1 > r2.y2 ||
r2.y1 > r1.y2;
return !noOverlap;
}
I had the same problem with a freshly installed copy of Chrome.
If nothing works, and your Use a proxy server your LAN
setting is unchecked, check it and then uncheck it . Believe it or not it might work. I don't know if I should consider it a bug or not.
The easiest way is:
s = '"sajdkasjdsaasdasdasds"'
import json
s = json.loads(s)
for /d %%a in (*) do (ECHO zip -r -p "%%~na.zip" ".\%%a\*")
should work from within a batch.
Note that I've included an ECHO
to simply SHOW the command that is proposed. You'd need to remove the ECHO
keywor to EXECUTE the commands.
A simple modal pop up div or dialog box can be done by CSS properties and little bit of jQuery.The basic idea is simple:
So we need three divs:
First let us define the CSS:
#hider
{
position:absolute;
top: 0%;
left: 0%;
width:1600px;
height:2000px;
margin-top: -800px; /*set to a negative number 1/2 of your height*/
margin-left: -500px; /*set to a negative number 1/2 of your width*/
/*
z- index must be lower than pop up box
*/
z-index: 99;
background-color:Black;
//for transparency
opacity:0.6;
}
#popup_box
{
position:absolute;
top: 50%;
left: 50%;
width:10em;
height:10em;
margin-top: -5em; /*set to a negative number 1/2 of your height*/
margin-left: -5em; /*set to a negative number 1/2 of your width*/
border: 1px solid #ccc;
border: 2px solid black;
z-index:100;
}
It is important that we set our hider div's z-index lower than pop_up box as we want to show popup_box on top.
Here comes the java Script:
$(document).ready(function () {
//hide hider and popup_box
$("#hider").hide();
$("#popup_box").hide();
//on click show the hider div and the message
$("#showpopup").click(function () {
$("#hider").fadeIn("slow");
$('#popup_box').fadeIn("slow");
});
//on click hide the message and the
$("#buttonClose").click(function () {
$("#hider").fadeOut("slow");
$('#popup_box').fadeOut("slow");
});
});
And finally the HTML:
<div id="hider"></div>
<div id="popup_box">
Message<br />
<a id="buttonClose">Close</a>
</div>
<div id="content">
Page's main content.<br />
<a id="showpopup">ClickMe</a>
</div>
I have used jquery-1.4.1.min.js www.jquery.com/download and tested the code in Firefox. Hope this helps.
display:none;
removes a block from the page as if it were never there. A block cannot be partially displayed; it’s either there or it’s not. The same is true forvisibility
; you can’t expect a block to be halfhidden
which, by definition, would bevisible
! Fortunately, you can useopacity
for fading effects instead.
- reference
As an alternatiive CSS solution, you could play with opacity
, height
and padding
properties to achieve the desirable effect:
#header #button:hover > .content {
opacity:1;
height: 150px;
padding: 8px;
}
#header #button .content {
opacity:0;
height: 0;
padding: 0 8px;
overflow: hidden;
transition: all .3s ease .15s;
}
(Vendor prefixes omitted due to brevity.)
Here is a working demo. Also here is a similar topic on SO.
#header #button {_x000D_
width:200px;_x000D_
background:#ddd;_x000D_
transition: border-radius .3s ease .15s;_x000D_
}_x000D_
_x000D_
#header #button:hover, #header #button > .content {_x000D_
border-radius: 0px 0px 7px 7px;_x000D_
}_x000D_
_x000D_
#header #button:hover > .content {_x000D_
opacity: 1;_x000D_
height: 150px;_x000D_
padding: 8px; _x000D_
}_x000D_
_x000D_
#header #button > .content {_x000D_
opacity:0;_x000D_
clear: both;_x000D_
height: 0;_x000D_
padding: 0 8px;_x000D_
overflow: hidden;_x000D_
_x000D_
-webkit-transition: all .3s ease .15s;_x000D_
-moz-transition: all .3s ease .15s;_x000D_
-o-transition: all .3s ease .15s;_x000D_
-ms-transition: all .3s ease .15s;_x000D_
transition: all .3s ease .15s;_x000D_
_x000D_
border: 1px solid #ddd;_x000D_
_x000D_
-webkit-box-shadow: 0px 2px 2px #ddd;_x000D_
-moz-box-shadow: 0px 2px 2px #ddd;_x000D_
box-shadow: 0px 2px 2px #ddd;_x000D_
background: #FFF;_x000D_
}_x000D_
_x000D_
#button > span { display: inline-block; padding: .5em 1em }
_x000D_
<div id="header">_x000D_
<div id="button"> <span>This is a Button</span>_x000D_
<div class="content">_x000D_
This is the Hidden Div_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
just open the bin folder and copy and paste the .dll files to the folder you are working in..it should fix the problem
Sessions are server-side files that contain user information, while Cookies are client-side files that contain user information. Sessions have a unique identifier that maps them to specific users. This identifier can be passed in the URL or saved into a session cookie.
Most modern sites use the second approach, saving the identifier in a Cookie instead of passing it in a URL (which poses a security risk). You are probably using this approach without knowing it, and by deleting the cookies you effectively erase their matching sessions as you remove the unique session identifier contained in the cookies.
Well, if you have to read file line by line to work with each line, you can use
with open('Path/to/file', 'r') as f:
s = f.readline()
while s:
# do whatever you want to
s = f.readline()
Or even better way:
with open('Path/to/file') as f:
for line in f:
# do whatever you want to
I assume I have import datetime
before running each of the lines of code below
datetime.datetime.strptime("2013-1-25", '%Y-%m-%d').strftime('%m/%d/%y')
prints "01/25/13"
.
If you can't live with the leading zero, try this:
dt = datetime.datetime.strptime("2013-1-25", '%Y-%m-%d')
print '{0}/{1}/{2:02}'.format(dt.month, dt.day, dt.year % 100)
This prints "1/25/13"
.
EDIT: This may not work on every platform:
datetime.datetime.strptime("2013-1-25", '%Y-%m-%d').strftime('%m/%d/%y')
When you perform an DOM query through jQuery like $('class-name')
it actively searched the DOM for that element and returns that element with all the jQuery prototype methods attached.
When you're within the jQuery chain or event you don't have to rerun the DOM query you can use the context $(this)
. Like so:
$('.class-name').on('click', (evt) => {
$(this).hide(); // does not run a DOM query
$('.class-name').hide() // runs a DOM query
});
$(this)
will hold the element that you originally requested. It will attach all the jQuery prototype methods again, but will not have to search the DOM again.
Some more information:
Web Performance with jQuery selectors
Quote from a web blog that doesn't exist anymore but I'll leave it in here for history sake:
In my opinion, one of the best jQuery performance tips is to minimize your use of jQuery. That is, find a balance between using jQuery and plain ol’ JavaScript, and a good place to start is with ‘this‘. Many developers use $(this) exclusively as their hammer inside callbacks and forget about this, but the difference is distinct:
When inside a jQuery method’s anonymous callback function, this is a reference to the current DOM element. $(this) turns this into a jQuery object and exposes jQuery’s methods. A jQuery object is nothing more than a beefed-up array of DOM elements.
I agree that Amazon appears to be intentionally obfuscating even how to find the API documentation, as well as use it. I'm just speculating though.
Renaming the services from "ECS" to "Product Advertising API" was probably also not the best move, it essentially invalidated all that Google mojo they had built up over time.
It took me quite a while to 'discover' this updated link for the Product Advertising API. I don't remember being able to easily discover it through the typical 'Developer' link on the Amazon webpage. This documentation appears to valid and what I've worked from recently.
The change to authentication procedures also seems to add further complexity, but I'm sure they have a reason for it.
I use SOAP via C# to communicate with Amazon Product API.
With the REST API you have to encrypt the whole URL in a fairly specific way. The params have to be sorted, etc. There is just more to do. With the SOAP API, you just encrypt the operation+timestamp, and thats it.
Adam O'Neil's post here, How to get album, dvd, and blueray cover art from Amazon, walks through the SOAP with C# method. Its not the original sample I pulled down, and contrary to his comment, it was not an official Amazon sample I stumbled on, though the code looks identical. However, Adam does a good job at presenting all the necessary steps. I wish I could credit the original author.
So you can change it programmatically easily by using homeAsUpIndicator() function that added in android API level 18 and upper.
ActionBar().setHomeAsUpIndicator(R.drawable.ic_yourindicator);
If you use support library
getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_yourindicator);
There is no such limit on the string length. To be certain, I just tested to create a string containing 60 megabyte.
The problem is likely that you are sending the data in a GET request, so it's sent in the URL. Different browsers have different limits for the URL, where IE has the lowest limist of about 2 kB. To be safe, you should never send more data than about a kilobyte in a GET request.
To send that much data, you have to send it in a POST request instead. The browser has no hard limit on the size of a post, but the server has a limit on how large a request can be. IIS for example has a default limit of 4 MB, but it's possible to adjust the limit if you would ever need to send more data than that.
Also, you shouldn't use += to concatenate long strings. For each iteration there is more and more data to move, so it gets slower and slower the more items you have. Put the strings in an array and concatenate all the items at once:
var items = $.map(keys, function(item, i) {
var value = $("#value" + (i+1)).val().replace(/"/g, "\\\"");
return
'{"Key":' + '"' + Encoder.htmlEncode($(this).html()) + '"' + ",'+
'" + '"Value"' + ':' + '"' + Encoder.htmlEncode(value) + '"}';
});
var jsonObj =
'{"code":"' + code + '",'+
'"defaultfile":"' + defaultfile + '",'+
'"filename":"' + currentFile + '",'+
'"lstResDef":[' + items.join(',') + ']}';
For Each row As DataGridViewRow In yourDGV.SelectedRows
yourDGV.Rows.Remove(row)
Next
This will delete all rows that had been selected.
If your file my.cnf (usually in the etc folder) is correctly configured with
socket=/var/lib/mysql/mysql.sock
you can check if mysql is running with the following command:
mysqladmin -u root -p status
try changing your permission to mysql folder. If you are working locally, you can try:
sudo chmod -R 777 /var/lib/mysql/
that solved it for me
getJSONArray(attrname) will get you an array from the object of that given attribute name in your case what is happening is that for
{"abridged_cast":["name": blah...]}
^ its trying to search for a value "characters"
but you need to get into the array and then do a search for "characters"
try this
String json="{'abridged_cast':[{'name':'JeffBridges','id':'162655890','characters':['JackPrescott']},{'name':'CharlesGrodin','id':'162662571','characters':['FredWilson']},{'name':'JessicaLange','id':'162653068','characters':['Dwan']},{'name':'JohnRandolph','id':'162691889','characters':['Capt.Ross']},{'name':'ReneAuberjonois','id':'162718328','characters':['Bagley']}]}";
JSONObject jsonResponse;
try {
ArrayList<String> temp = new ArrayList<String>();
jsonResponse = new JSONObject(json);
JSONArray movies = jsonResponse.getJSONArray("abridged_cast");
for(int i=0;i<movies.length();i++){
JSONObject movie = movies.getJSONObject(i);
JSONArray characters = movie.getJSONArray("characters");
for(int j=0;j<characters.length();j++){
temp.add(characters.getString(j));
}
}
Toast.makeText(this, "Json: "+temp, Toast.LENGTH_LONG).show();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
checked it :)
For my case, my another team member included another version of jquery.js when he add in bootstrap.min.js. After remove the extra jquery.js, the problem is solved
this is not possible in "mailto" function.
please go with server side coding(C#).make sure open vs in administrative permission.
Microsoft.Office.Interop.Outlook.Application oApp = new Microsoft.Office.Interop.Outlook.Application();
Microsoft.Office.Interop.Outlook.MailItem oMsg = (Microsoft.Office.Interop.Outlook.MailItem)oApp.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);
oMsg.Subject = "emailSubject";
oMsg.BodyFormat = Microsoft.Office.Interop.Outlook.OlBodyFormat.olFormatHTML;
oMsg.BCC = "emailBcc";
oMsg.To = "emailRecipient";
string body = "emailMessage";
oMsg.HTMLBody = "body";
oMsg.Attachments.Add(Convert.ToString(@"/my_location_virtual_path/myfile.txt"), Microsoft.Office.Interop.Outlook.OlAttachmentType.olByValue, Type.Missing, Type.Missing);
oMsg.Display(false); //In order to displ
Zoom level 0 is the most zoomed out zoom level available and each integer step in zoom level halves the X and Y extents of the view and doubles the linear resolution.
Google Maps was built on a 256x256 pixel tile system where zoom level 0 was a 256x256 pixel image of the whole earth. A 256x256 tile for zoom level 1 enlarges a 128x128 pixel region from zoom level 0.
As correctly stated by bkaid, the available zoom range depends on where you are looking and the kind of map you are using:
Note that these values are for the Google Static Maps API which seems to give one more zoom level than the Javascript API. It appears that the extra zoom level available for Static Maps is just an upsampled version of the max-resolution image from the Javascript API.
Google Maps uses a Mercator projection so the scale varies substantially with latitude. A formula for calculating the correct scale based on latitude is:
meters_per_pixel = 156543.03392 * Math.cos(latLng.lat() * Math.PI / 180) / Math.pow(2, zoom)
Formula is from Chris Broadfoot's comment.
Google Maps basics
Zoom Level - zoom
0 - 19
0 lowest zoom (whole world)
19 highest zoom (individual buildings, if available) Retrieve current zoom level using mapObject.getZoom()
What you're looking for are the scales for each zoom level. Use these:
20 : 1128.497220
19 : 2256.994440
18 : 4513.988880
17 : 9027.977761
16 : 18055.955520
15 : 36111.911040
14 : 72223.822090
13 : 144447.644200
12 : 288895.288400
11 : 577790.576700
10 : 1155581.153000
9 : 2311162.307000
8 : 4622324.614000
7 : 9244649.227000
6 : 18489298.450000
5 : 36978596.910000
4 : 73957193.820000
3 : 147914387.600000
2 : 295828775.300000
1 : 591657550.500000
You can add a custom rule like this:
$.validator.addMethod(
'booleanRequired',
function (value, element, requiredValue) {
return value === requiredValue;
},
'Please check your input.'
);
And add it as a rule like this:
PhoneToggle: {
booleanRequired: 'on'
}
Don't forget that php-fpm
is a service. After installing it, make sure you start it:
# service php-fpm start
# chkconfig php-fpm on
Here how can use threads with a progressBar , its just for understing how the threads works, in the form there are three progressBar and 4 button:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Thread t, t2, t3;
private void Form1_Load(object sender, EventArgs e)
{
CheckForIllegalCrossThreadCalls = false;
t = new Thread(birinicBar); //evry thread workes with a new progressBar
t2 = new Thread(ikinciBar);
t3 = new Thread(ucuncuBar);
}
public void birinicBar() //to make progressBar work
{
for (int i = 0; i < 100; i++) {
progressBar1.Value++;
Thread.Sleep(100); // this progressBar gonna work faster
}
}
public void ikinciBar()
{
for (int i = 0; i < 100; i++)
{
progressBar2.Value++;
Thread.Sleep(200);
}
}
public void ucuncuBar()
{
for (int i = 0; i < 100; i++)
{
progressBar3.Value++;
Thread.Sleep(300);
}
}
private void button1_Click(object sender, EventArgs e) //that button to start the threads
{
t.Start();
t2.Start(); t3.Start();
}
private void button4_Click(object sender, EventArgs e)//that button to stup the threads with the progressBar
{
t.Suspend();
t2.Suspend();
t3.Suspend();
}
private void button2_Click(object sender, EventArgs e)// that is for contuniue after stuping
{
t.Resume();
t2.Resume();
t3.Resume();
}
private void button3_Click(object sender, EventArgs e) // finally with that button you can remove all of the threads
{
t.Abort();
t2.Abort();
t3.Abort();
}
}
Using project Project facets we can configure characteristics and requirements for projects.
To find Project facets on eclipse:
You could use the following query:
SELECT table1.id
FROM table1
LEFT JOIN table2
ON table1.id IN (table2.user_one, table2.user_two)
WHERE table2.user_one IS NULL;
Although, depending on your indexes on table2
you may find that two joins performs better:
SELECT table1.id
FROM table1
LEFT JOIN table2 AS t1
ON table1.id = t1.user_one
LEFT JOIN table2 AS t2
ON table1.id = t2.user_two
WHERE t1.user_one IS NULL
AND t2.user_two IS NULL;
Keys combination:
Ctrl + F5
Syncs the project with Gradle files.
All credits to @Martijn Pieters in the comments:
You can use the function last_insert_rowid()
:
The
last_insert_rowid()
function returns theROWID
of the last row insert from the database connection which invoked the function. Thelast_insert_rowid()
SQL function is a wrapper around thesqlite3_last_insert_rowid()
C/C++ interface function.
Besides the redundant )
this expression will always be true
because currentStatus
will always match one of these two conditions:
currentStatus !== 'open' || currentStatus !== 'reopen'
perhaps you mean one of
!(currentStatus === 'open' || currentStatus === 'reopen')
(currentStatus !== 'open' && currentStatus !== 'reopen')
GRANT
s on different objects are separate. GRANT
ing on a database doesn't GRANT
rights to the schema within. Similiarly, GRANT
ing on a schema doesn't grant rights on the tables within.
If you have rights to SELECT
from a table, but not the right to see it in the schema that contains it then you can't access the table.
The rights tests are done in order:
Do you have `USAGE` on the schema?
No: Reject access.
Yes: Do you also have the appropriate rights on the table?
No: Reject access.
Yes: Check column privileges.
Your confusion may arise from the fact that the public
schema has a default GRANT
of all rights to the role public
, which every user/group is a member of. So everyone already has usage on that schema.
The phrase:
(assuming that the objects' own privilege requirements are also met)
Is saying that you must have USAGE
on a schema to use objects within it, but having USAGE
on a schema is not by itself sufficient to use the objects within the schema, you must also have rights on the objects themselves.
It's like a directory tree. If you create a directory somedir
with file somefile
within it then set it so that only your own user can access the directory or the file (mode rwx------
on the dir, mode rw-------
on the file) then nobody else can list the directory to see that the file exists.
If you were to grant world-read rights on the file (mode rw-r--r--
) but not change the directory permissions it'd make no difference. Nobody could see the file in order to read it, because they don't have the rights to list the directory.
If you instead set rwx-r-xr-x
on the directory, setting it so people can list and traverse the directory but not changing the file permissions, people could list the file but could not read it because they'd have no access to the file.
You need to set both permissions for people to actually be able to view the file.
Same thing in Pg. You need both schema USAGE
rights and object rights to perform an action on an object, like SELECT
from a table.
(The analogy falls down a bit in that PostgreSQL doesn't have row-level security yet, so the user can still "see" that the table exists in the schema by SELECT
ing from pg_class
directly. They can't interact with it in any way, though, so it's just the "list" part that isn't quite the same.)
Use app:itemIconTint in your NavigationView, ej:
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:itemTextColor="@color/customColor"
app:itemIconTint="@color/customColor"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_home"
app:menu="@menu/activity_home_drawer" />
There are two aspects to your questions: what are the technical aspects of using const
instead of var
and what are the human-related aspects of doing so.
The technical difference is significant. In compiled languages, a constant will be replaced at compile-time and its use will allow for other optimizations like dead code removal to further increase the runtime efficiency of the code. Recent (loosely used term) JavaScript engines actually compile JS code to get better performance, so using the const keyword would inform them that the optimizations described above are possible and should be done. This results in better performance.
The human-related aspect is about the semantics of the keyword. A variable is a data structure that contains information that is expected to change. A constant is a data structure that contains information that will never change. If there is room for error, var
should always be used. However, not all information that never changes in the lifetime of a program needs to be declared with const
. If under different circumstances the information should change, use var
to indicate that, even if the actual change doesn't appear in your code.
I would consider to refactor the service to return your domain object rather than JSON strings and let Spring handle the serialization (via the MappingJacksonHttpMessageConverter
as you write). As of Spring 3.1, the implementation looks quite neat:
@RequestMapping(produces = MediaType.APPLICATION_JSON_VALUE,
method = RequestMethod.GET
value = "/foo/bar")
@ResponseBody
public Bar fooBar(){
return myService.getBar();
}
Comments:
First, the <mvc:annotation-driven />
or the @EnableWebMvc
must be added to your application config.
Next, the produces attribute of the @RequestMapping
annotation is used to specify the content type of the response. Consequently, it should be set to MediaType.APPLICATION_JSON_VALUE (or "application/json"
).
Lastly, Jackson must be added so that any serialization and de-serialization between Java and JSON will be handled automatically by Spring (the Jackson dependency is detected by Spring and the MappingJacksonHttpMessageConverter
will be under the hood).
The problem is that flex: 1
sets flex-basis: 0
. Instead, you need
.container .box {
min-width: 200px;
max-width: 400px;
flex-basis: auto; /* default value */
flex-grow: 1;
}
.container {_x000D_
display: -webkit-flex;_x000D_
display: flex;_x000D_
-webkit-flex-wrap: wrap;_x000D_
flex-wrap: wrap;_x000D_
}_x000D_
_x000D_
.container .box {_x000D_
-webkit-flex-grow: 1;_x000D_
flex-grow: 1;_x000D_
min-width: 100px;_x000D_
max-width: 400px;_x000D_
height: 200px;_x000D_
background-color: #fafa00;_x000D_
overflow: hidden;_x000D_
}
_x000D_
<div class="container">_x000D_
<div class="box">_x000D_
<table>_x000D_
<tr>_x000D_
<td>Content</td>_x000D_
<td>Content</td>_x000D_
<td>Content</td>_x000D_
</tr>_x000D_
</table> _x000D_
</div>_x000D_
<div class="box">_x000D_
<table>_x000D_
<tr>_x000D_
<td>Content</td>_x000D_
</tr>_x000D_
</table> _x000D_
</div>_x000D_
<div class="box">_x000D_
<table>_x000D_
<tr>_x000D_
<td>Content</td>_x000D_
<td>Content</td>_x000D_
</tr>_x000D_
</table> _x000D_
</div>_x000D_
</div>
_x000D_
Where do these values come from? The documentation for android:fontFamily does not list this information in any place
These are indeed not listed in the documentation. But they are mentioned here under the section 'Font families'. The document lists every new public API for Android Jelly Bean 4.1.
In the styles.xml file in the application I'm working on somebody listed this as the font family, and I'm pretty sure it's wrong:
Yes, that's wrong. You don't reference the font file, you have to use the font name mentioned in the linked document above. In this case it should have been this:
<item name="android:fontFamily">sans-serif</item>
Like the linked answer already stated, 12 variants are possible:
Regular (default):
<item name="android:fontFamily">sans-serif</item>
<item name="android:textStyle">normal</item>
Italic:
<item name="android:fontFamily">sans-serif</item>
<item name="android:textStyle">italic</item>
Bold:
<item name="android:fontFamily">sans-serif</item>
<item name="android:textStyle">bold</item>
Bold-italic:
<item name="android:fontFamily">sans-serif</item>
<item name="android:textStyle">bold|italic</item>
Light:
<item name="android:fontFamily">sans-serif-light</item>
<item name="android:textStyle">normal</item>
Light-italic:
<item name="android:fontFamily">sans-serif-light</item>
<item name="android:textStyle">italic</item>
Thin :
<item name="android:fontFamily">sans-serif-thin</item>
<item name="android:textStyle">normal</item>
Thin-italic :
<item name="android:fontFamily">sans-serif-thin</item>
<item name="android:textStyle">italic</item>
Condensed regular:
<item name="android:fontFamily">sans-serif-condensed</item>
<item name="android:textStyle">normal</item>
Condensed italic:
<item name="android:fontFamily">sans-serif-condensed</item>
<item name="android:textStyle">italic</item>
Condensed bold:
<item name="android:fontFamily">sans-serif-condensed</item>
<item name="android:textStyle">bold</item>
Condensed bold-italic:
<item name="android:fontFamily">sans-serif-condensed</item>
<item name="android:textStyle">bold|italic</item>
Medium:
<item name="android:fontFamily">sans-serif-medium</item>
<item name="android:textStyle">normal</item>
Medium-italic:
<item name="android:fontFamily">sans-serif-medium</item>
<item name="android:textStyle">italic</item>
Black:
<item name="android:fontFamily">sans-serif-black</item>
<item name="android:textStyle">italic</item>
For quick reference, this is how they all look like:
An @
symbol at the beginning of a line is used for class, function and method decorators.
Read more here:
The most common Python decorators you'll run into are:
If you see an @
in the middle of a line, that's a different thing, matrix multiplication. See this answer showing the use of @
as a binary operator.
select min(salary)
from (select salary
from employee
where rownum < n+1
order by salary desc);
This has already been answered perfectly, but since I just came to this page and did not understand immediately I am just going to add a simple but complete example.
def some_func(a_char, a_float, a_something):
print a_char
params = ['a', 3.4, None]
some_func(*params)
>> a
I think the pro LINQ argument seems to be coming from people who don't have a history with database development (in general).
Especially if using a product like VS DB Pro or Team Suite, many of the arguments made here do not apply, for instance:
Harder to maintain and Test: VS provides full syntax checking, style checking, referential and constraint checking and more. It also provide full unit testing capabilities and refactoring tools.
LINQ makes true unit testing impossible as (in my mind) it fails the ACID test.
Debugging is easier in LINQ: Why? VS allows full step-in from managed code and regular debugging of SPs.
Compiled into a single DLL rather than deployment scripts: Once again, VS comes to the rescue where it can build and deploy full databases or make data-safe incremental changes.
Don't have to learn TSQL with LINQ: No you don't, but you have to learn LINQ - where's the benefit?
I really don't see this as being a benefit. Being able to change something in isolation might sound good in theory, but just because the changes fulfil a contract doesn't mean it's returning the correct results. To be able to determine what the correct results are you need context and you get that context from the calling code.
Um, loosely coupled apps are the ultimate goal of all good programmers as they really do increase flexibility. Being able to change things in isolation is fantastic, and it is your unit tests that will ensure it is still returning appropriate results.
Before you all get upset, I think LINQ has its place and has a grand future. But for complex, data-intensive applications I do not think it is ready to take the place of stored procedures. This was a view I had echoed by an MVP at TechEd this year (they will remain nameless).
EDIT: The LINQ to SQL Stored Procedure side of things is something I still need to read more on - depending on what I find I may alter my above diatribe ;)
To access an Ip Camera, first, I recommend you to install it like you are going to use for the standard application, without any code, using normal software.
After this, you have to know that for different cameras, we have different codes. There is a website where you can see what code you can use to access them:
https://www.ispyconnect.com/sources.aspx
But be careful, for my camera (Intelbras S3020) it does not work. The right way is to ask the company of your camera, and if they are a good company they will provide it.
When you know your code just add it like:
cap = cv2.VideoCapture("http://LOGIN:PASSWORD@IP/cgi-bin/mjpg/video.cgi?&subtype=1")
Instead LOGIN you will put your login, and instead PASSWORD you will put your password.
To find out camera's IP address there is many softwares that you can download and provide the Ip address to you. I use the software from Intelbras, but I also recommend EseeCloud because they work for almost all cameras that I've bought:
https://eseecloud.software.informer.com/1.2/
In this example, it shows the protocol http to access the Ip camera, but you can also use rstp, it depends on the camera, as I said.
If you have any further questions just let me know.
Use DateFormat. (Sorry, but the brevity of the question does not warrant a longer or more detailed answer.)
Take a look at Serialization, a technique to "convert" an entire object to a byte stream. You may send it to the network or write it into a file and then restore it back to an object later.
Set a breakpoint on malloc_error_break() by opening the Breakpoint Navigator (View->Navigators->Show Breakpoint Navigator or ?8), clicking the plus button in the lower left corner, and selecting "Add Symbolic Breakpoint". In the popup that comes up, enter malloc_error_break
in the Symbol field, then click Done.
EDIT: openfrog added a screenshot and indicated that he's already tried these steps without success after I posted my answer. With that edit, I'm not sure what to say. I haven't seen that fail to work myself, and indeed I always keep a breakpoint on malloc_error_break set.
The number of string occurrences (not lines) can be obtained using grep
with -o
option and wc
(word count):
$ echo "echo 1234 echo" | grep -o echo
echo
echo
$ echo "echo 1234 echo" | grep -o echo | wc -l
2
So the full solution for your problem would look like this:
$ grep -o "echo" FILE | wc -l
Nested if's in Excel Are ugly:
=If(G2 < 1, .1, IF(G2 < 5,.15,if(G2 < 15,.2,if(G2 < 30,.5,if(G2 < 100,.1,1.3)))))
That should cover it.
Under browsers supporting js 1.8:
[i for(i in obj)]
Things you can add to declarations: [] in modules
Pro Tip: The error message explains it - Please add a @Pipe/@Directive/@Component annotation.
I personally prefer using scrapy and selenium and dockerizing both in separate containers. This way you can install both with minimal hassle and crawl modern websites that almost all contain javascript in one form or another. Here's an example:
Use the scrapy startproject
to create your scraper and write your spider, the skeleton can be as simple as this:
import scrapy
class MySpider(scrapy.Spider):
name = 'my_spider'
start_urls = ['https://somewhere.com']
def start_requests(self):
yield scrapy.Request(url=self.start_urls[0])
def parse(self, response):
# do stuff with results, scrape items etc.
# now were just checking everything worked
print(response.body)
The real magic happens in the middlewares.py. Overwrite two methods in the downloader middleware, __init__
and process_request
, in the following way:
# import some additional modules that we need
import os
from copy import deepcopy
from time import sleep
from scrapy import signals
from scrapy.http import HtmlResponse
from selenium import webdriver
class SampleProjectDownloaderMiddleware(object):
def __init__(self):
SELENIUM_LOCATION = os.environ.get('SELENIUM_LOCATION', 'NOT_HERE')
SELENIUM_URL = f'http://{SELENIUM_LOCATION}:4444/wd/hub'
chrome_options = webdriver.ChromeOptions()
# chrome_options.add_experimental_option("mobileEmulation", mobile_emulation)
self.driver = webdriver.Remote(command_executor=SELENIUM_URL,
desired_capabilities=chrome_options.to_capabilities())
def process_request(self, request, spider):
self.driver.get(request.url)
# sleep a bit so the page has time to load
# or monitor items on page to continue as soon as page ready
sleep(4)
# if you need to manipulate the page content like clicking and scrolling, you do it here
# self.driver.find_element_by_css_selector('.my-class').click()
# you only need the now properly and completely rendered html from your page to get results
body = deepcopy(self.driver.page_source)
# copy the current url in case of redirects
url = deepcopy(self.driver.current_url)
return HtmlResponse(url, body=body, encoding='utf-8', request=request)
Dont forget to enable this middlware by uncommenting the next lines in the settings.py file:
DOWNLOADER_MIDDLEWARES = {
'sample_project.middlewares.SampleProjectDownloaderMiddleware': 543,}
Next for dockerization. Create your Dockerfile
from a lightweight image (I'm using python Alpine here), copy your project directory to it, install requirements:
# Use an official Python runtime as a parent image
FROM python:3.6-alpine
# install some packages necessary to scrapy and then curl because it's handy for debugging
RUN apk --update add linux-headers libffi-dev openssl-dev build-base libxslt-dev libxml2-dev curl python-dev
WORKDIR /my_scraper
ADD requirements.txt /my_scraper/
RUN pip install -r requirements.txt
ADD . /scrapers
And finally bring it all together in docker-compose.yaml
:
version: '2'
services:
selenium:
image: selenium/standalone-chrome
ports:
- "4444:4444"
shm_size: 1G
my_scraper:
build: .
depends_on:
- "selenium"
environment:
- SELENIUM_LOCATION=samplecrawler_selenium_1
volumes:
- .:/my_scraper
# use this command to keep the container running
command: tail -f /dev/null
Run docker-compose up -d
. If you're doing this the first time it will take a while for it to fetch the latest selenium/standalone-chrome and the build your scraper image as well.
Once it's done, you can check that your containers are running with docker ps
and also check that the name of the selenium container matches that of the environment variable that we passed to our scraper container (here, it was SELENIUM_LOCATION=samplecrawler_selenium_1
).
Enter your scraper container with docker exec -ti YOUR_CONTAINER_NAME sh
, the command for me was docker exec -ti samplecrawler_my_scraper_1 sh
, cd into the right directory and run your scraper with scrapy crawl my_spider
.
The entire thing is on my github page and you can get it from here
Check that the path to your CSS
file is correct. Rather prefer absolute links, they are easier to understand since we know where we start from and search engines will also prefer them over relative links. And to reduce bandwidth rather use the link from font-awesome servers:
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" type="text/css">
Moreover if you use it, there will be no need of uploading extra fonts to your server and you will be sure that you point to the right CSS
file, and you will also benefit from the latest updates instantly.
Below is Example of simple dropdown using jstl tag
<form:select path="cityFrom">
<form:option value="Ghaziabad" label="Ghaziabad"/>
<form:option value="Modinagar" label="Modinagar"/>
<form:option value="Meerut" label="Meerut"/>
<form:option value="Amristar" label="Amristar"/>
</form:select>
Applications using JDBC 10.1 has got a bug (Doc ID 370438.1) and can throw the same ORA-01461 exception while working with UTF8 character set database even though inserted characters are less than the maximum size of the column.
Recommended Solution: - Use 10gR2 JDBC drivers or higher in such case.
HTH
Guzzle implements PSR-7. That means that it will by default store the body of a message in a Stream that uses PHP temp streams. To retrieve all the data, you can use casting operator:
$contents = (string) $response->getBody();
You can also do it with
$contents = $response->getBody()->getContents();
The difference between the two approaches is that getContents
returns the remaining contents, so that a second call returns nothing unless you seek the position of the stream with rewind
or seek
.
$stream = $response->getBody();
$contents = $stream->getContents(); // returns all the contents
$contents = $stream->getContents(); // empty string
$stream->rewind(); // Seek to the beginning
$contents = $stream->getContents(); // returns all the contents
Instead, usings PHP's string casting operations, it will reads all the data from the stream from the beginning until the end is reached.
$contents = (string) $response->getBody(); // returns all the contents
$contents = (string) $response->getBody(); // returns all the contents
Documentation: http://docs.guzzlephp.org/en/latest/psr7.html#responses
if (!$("#element").attr('my_attr')){
//return false
//attribute doesn't exists
}
You can prevent from this error by using hooks inside a function
Using dplyr:
library(dplyr)
# exclude ID column then get mean
DF %>%
transmute(ID,
Mean = rowMeans(select(., -ID)))
Or
# select the columns to include in mean
DF %>%
transmute(ID,
Mean = rowMeans(select(., C1:C3)))
# ID Mean
# 1 A 3.666667
# 2 B 4.333333
# 3 C 3.333333
# 4 D 4.666667
# 5 E 4.333333
Symmetric Key Cryptography : Symmetric key uses the same key for encryption and decryption. The main challenge with this type of cryptography is the exchange of the secret key between the two parties sender and receiver.
Example : The following example uses symmetric key for encryption and decryption algorithm available as part of the Sun's JCE(Java Cryptography Extension). Sun JCE is has two layers, the crypto API layer and the provider layer.
DES (Data Encryption Standard) was a popular symmetric key algorithm. Presently DES is outdated and considered insecure. Triple DES and a stronger variant of DES. It is a symmetric-key block cipher. There are other algorithms like Blowfish, Twofish and AES(Advanced Encryption Standard). AES is the latest encryption standard over the DES.
Steps :
KeyGenerator
and an algorithm to generate a secret key. We are using DESede
. UTF-8 encoding
. Cipher
with ENCRYPT_MODE
, use the secret key and encrypt the bytes. Cipher
with DECRYPT_MODE
, use the same secret key and decrypt the bytes. All the above given steps and concept are same, we just replace algorithms.
import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
public class EncryptionDecryptionAES {
static Cipher cipher;
public static void main(String[] args) throws Exception {
/*
create key
If we need to generate a new key use a KeyGenerator
If we have existing plaintext key use a SecretKeyFactory
*/
KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
keyGenerator.init(128); // block size is 128bits
SecretKey secretKey = keyGenerator.generateKey();
/*
Cipher Info
Algorithm : for the encryption of electronic data
mode of operation : to avoid repeated blocks encrypt to the same values.
padding: ensuring messages are the proper length necessary for certain ciphers
mode/padding are not used with stream cyphers.
*/
cipher = Cipher.getInstance("AES"); //SunJCE provider AES algorithm, mode(optional) and padding schema(optional)
String plainText = "AES Symmetric Encryption Decryption";
System.out.println("Plain Text Before Encryption: " + plainText);
String encryptedText = encrypt(plainText, secretKey);
System.out.println("Encrypted Text After Encryption: " + encryptedText);
String decryptedText = decrypt(encryptedText, secretKey);
System.out.println("Decrypted Text After Decryption: " + decryptedText);
}
public static String encrypt(String plainText, SecretKey secretKey)
throws Exception {
byte[] plainTextByte = plainText.getBytes();
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
byte[] encryptedByte = cipher.doFinal(plainTextByte);
Base64.Encoder encoder = Base64.getEncoder();
String encryptedText = encoder.encodeToString(encryptedByte);
return encryptedText;
}
public static String decrypt(String encryptedText, SecretKey secretKey)
throws Exception {
Base64.Decoder decoder = Base64.getDecoder();
byte[] encryptedTextByte = decoder.decode(encryptedText);
cipher.init(Cipher.DECRYPT_MODE, secretKey);
byte[] decryptedByte = cipher.doFinal(encryptedTextByte);
String decryptedText = new String(decryptedByte);
return decryptedText;
}
}
Output:
Plain Text Before Encryption: AES Symmetric Encryption Decryption
Encrypted Text After Encryption: sY6vkQrWRg0fvRzbqSAYxepeBIXg4AySj7Xh3x4vDv8TBTkNiTfca7wW/dxiMMJl
Decrypted Text After Decryption: AES Symmetric Encryption Decryption
Example: Cipher with two modes, they are encrypt and decrypt. we have to start every time after setting mode to encrypt or decrypt a text.
I had the same issue. Try this, it should work!
Right click on MySQL Notifier -> Actions -> Manage Monitored Items
Highlight the MySQL56 entry and click the delete button