I have tried out all the possible answers from stackOverflow, finally i solved after a week Long search . I have used the coordinate layout and i changed this with linearLayout and my problem is fixed. I dont know possibly the coordinate layout has bugs or anything my mistake.
SELECT CAST(Datetimefield AS DATE) as DateField, SUM(intfield) as SumField
FROM MyTable
GROUP BY CAST(Datetimefield AS DATE)
Most OLD c++ and c functions, when deal with strings, use const char*
.
With STL and std::string
, string.c_str()
is introduced to be able to convert from std::string
to const char*
.
That means that if you promise not to change the buffer, you'll be able to use read only string contents. PROMISE = const char*
To handle SSL urls the method onReceivedSslError() from the WebViewClient class, This is an example:
webview.setWebViewClient(new WebViewClient() {
...
...
...
@Override
public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
String message = "SSL Certificate error.";
switch (error.getPrimaryError()) {
case SslError.SSL_UNTRUSTED:
message = "The certificate authority is not trusted.";
break;
case SslError.SSL_EXPIRED:
message = "The certificate has expired.";
break;
case SslError.SSL_IDMISMATCH:
message = "The certificate Hostname mismatch.";
break;
case SslError.SSL_NOTYETVALID:
message = "The certificate is not yet valid.";
break;
}
message += "\"SSL Certificate Error\" Do you want to continue anyway?.. YES";
handler.proceed();
}
});
You can check my complete example here: https://github.com/Jorgesys/Android-WebView-Logging
You need to add android:exported="true"
to start service from ADB command line. Then your manifest looks something like this:
<!-- Service declared in manifest -->
<service
android:name=".YourServiceName"
android:exported="true"
android:launchMode="singleTop">
<intent-filter>
<action android:name="com.your.package.name.YourServiceName"/>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</service> <!-- Note: Service is exported to start it using ADB command -->
And then from ADB
To start service:
adb shell am startservice com.your.package.name/.YourServiceName
To stop service (on Marshmallow):
adb shell am stopservice com.your.package.name/.YourServiceName
To stop service (on Jelly Bean):
adb shell am force-stop com.your.package.name
require 'date'
current_time = DateTime.now
current_time.strftime "%d/%m/%Y %H:%M"
# => "14/09/2011 17:02"
current_time.next_month.strftime "%d/%m/%Y %H:%M"
# => "14/10/2011 17:02"
I've been able to do this using SVG filter. You can write a filter that multiplies the color of source image with the color you want to change to. In the code snippet below, flood-color is the color we want to change image color to (which is Red in this case.) feComposite tells the filter how we're processing the color. The formula for feComposite with arithmetic is (k1*i1*i2 + k2*i1 + k3*i2 + k4) where i1 and i2 are input colors for in/in2 accordingly. So specifying only k1=1 means it will do just i1*i2, which means multiplying both input colors together.
Note: This only works with HTML5 since this is using inline SVG. But I think you might be able to make this work with older browser by putting SVG in a separate file. I haven't tried that approach yet.
Here's the snippet:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="60" height="90" style="float:left">_x000D_
<defs>_x000D_
<filter id="colorMask1">_x000D_
<feFlood flood-color="#ff0000" result="flood" />_x000D_
<feComposite in="SourceGraphic" in2="flood" operator="arithmetic" k1="1" k2="0" k3="0" k4="0" />_x000D_
</filter>_x000D_
</defs>_x000D_
<image width="100%" height="100%" xlink:href="http://i.stack.imgur.com/OyP0g.jpg" filter="url(#colorMask1)" />_x000D_
</svg>_x000D_
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="60" height="90" style="float:left">_x000D_
<defs>_x000D_
<filter id="colorMask2">_x000D_
<feFlood flood-color="#00ff00" result="flood" />_x000D_
<feComposite in="SourceGraphic" in2="flood" operator="arithmetic" k1="1" k2="0" k3="0" k4="0" />_x000D_
</filter>_x000D_
</defs>_x000D_
<image width="100%" height="100%" xlink:href="http://i.stack.imgur.com/OyP0g.jpg" filter="url(#colorMask2)" />_x000D_
</svg>_x000D_
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="60" height="90" style="float:left">_x000D_
<defs>_x000D_
<filter id="colorMask3">_x000D_
<feFlood flood-color="#0000ff" result="flood" />_x000D_
<feComposite in="SourceGraphic" in2="flood" operator="arithmetic" k1="1" k2="0" k3="0" k4="0" />_x000D_
</filter>_x000D_
</defs>_x000D_
<image width="100%" height="100%" xlink:href="http://i.stack.imgur.com/OyP0g.jpg" filter="url(#colorMask3)" />_x000D_
</svg>
_x000D_
The error means that you dont have enough space to create temp files needed by MySQL.
The first thing you can try is to expand the size of your /tmp/
partition. If you are under LVM, check the lvextend
command.
If you are not able to increase the size of your partition /tmp/
you can work in the MySQL configuration, edit the my.cnf
(typically on /etc/mysql/my.cnf
) file and look for this line:
tmpdir = /tmp/
Change it for whatever you want (example /var/tmp/
). Just be sure to have space and assign write permission for the mysql user in the new directory.
Hope this helps!
DateAndTime Reformat:
SELECT *, to_char( last_update, 'DD-MON-YYYY') as re_format from actor;
DEMO:
<context:annotation-config>
activates many different annotations in beans, whether they are defined in XML or through component scanning.
<context:component-scan>
is for defining beans without using XML
For further information, read:
This also works:
public static Set<Integer> findDuplicates(List<Integer> input) {
List<Integer> copy = new ArrayList<Integer>(input);
for (Integer value : new HashSet<Integer>(input)) {
copy.remove(value);
}
return new HashSet<Integer>(copy);
}
Guava has a method Ints.asList()
for creating a List<Integer>
backed by an int[]
array. You can use this with Collections.sort to apply the Comparator to the underlying array.
List<Integer> integersList = Ints.asList(arr);
Collections.sort(integersList, Collections.reverseOrder());
Note that the latter is a live list backed by the actual array, so it should be pretty efficient.
Add which colors you want to colors
and then set colorByPoint
to true
.
colors: [
'#4572A7',
'#AA4643',
'#89A54E',
'#80699B',
'#3D96AE',
'#DB843D',
'#92A8CD',
'#A47D7C',
'#B5CA92'
],
plotOptions: {
column: {
colorByPoint: true
}
}
Reference:
Add this code on values anim
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
android:duration="@android:integer/config_longAnimTime"
android:fromXScale="0.2"
android:fromYScale="0.2"
android:toXScale="1.0"
android:toYScale="1.0"
android:pivotX="50%"
android:pivotY="50%"/>
<alpha
android:fromAlpha="0.1"
android:toAlpha="1.0"
android:duration="@android:integer/config_longAnimTime"
android:interpolator="@android:anim/accelerate_decelerate_interpolator"/>
</set>
call on styles.xml
<style name="DialogScale">
<item name="android:windowEnterAnimation">@anim/scale_in</item>
<item name="android:windowExitAnimation">@anim/scale_out</item>
</style>
In Java code: set Onclick
public void onClick(View v) {
fab_onclick(R.style.DialogScale, "Scale" ,(Activity) context,getWindow().getDecorView().getRootView());
// Dialogs.fab_onclick(R.style.DialogScale, "Scale");
}
setup on method:
alertDialog.getWindow().getAttributes().windowAnimations = type;
If every char in the file is properly encoded in UTF-8, you won't have any problem reading it using a reader with the UTF-8 encoding. Up to you to check every char of the file and see if you consider it printable or not.
This works for me.
Request.Url.OriginalString.Replace(Request.Url.PathAndQuery, "") + Request.ApplicationPath;
So if you want to access your domain name do consider to include the application name in case of:
====================================
For the dev.x.us/web
it return this strong text
You can add a random (or datetime string) as query string to the url that points to your script. Like so:
<script type="text/javascript" src="test.js?q=123"></script>
Every time you refresh the page you need to make sure the value of 'q' is changed.
From the GNU UPC website:
Compiler build fails with fatal error: gnu/stubs-32.h: No such file or directory
This error message shows up on the 64 bit systems where GCC/UPC multilib feature is enabled, and it indicates that 32 bit version of libc is not installed. There are two ways to correct this problem:
- Install 32 bit version of glibc (e.g. glibc-devel.i686 on Fedora, CentOS, ..)
- Disable 'multilib' build by supplying "--disable-multilib" switch on the compiler configuration command
It seems, that the simple way
-Dmaven.javadoc.skip=true
does not work with the release-plugin. in this case you have to pass the parameter as an "argument"
mvn release:perform -Darguments="-Dmaven.javadoc.skip=true"
I ran into an article that illustrates a method where the data from the same excel sheet can be imported in the selected table until there is no modifications in excel with data types.
If the data is inserted or overwritten with new ones, importing process will be successfully accomplished, and the data will be added to the table in SQL database.
The article may be found here: http://www.sqlshack.com/using-ssis-packages-import-ms-excel-data-database/
Hope it helps.
This is what Sun-Oracle documentation says:
Package names are written in all lower case to avoid conflict with the names of classes or interfaces.
Companies use their reversed Internet domain name to begin their package names—for example, com.example.mypackage for a package named mypackage created by a programmer at example.com.
Exported variables such as $HOME
and $PATH
are available to (inherited by) other programs run by the shell that exports them (and the programs run by those other programs, and so on) as environment variables. Regular (non-exported) variables are not available to other programs.
$ env | grep '^variable='
$ # No environment variable called variable
$ variable=Hello # Create local (non-exported) variable with value
$ env | grep '^variable='
$ # Still no environment variable called variable
$ export variable # Mark variable for export to child processes
$ env | grep '^variable='
variable=Hello
$
$ export other_variable=Goodbye # create and initialize exported variable
$ env | grep '^other_variable='
other_variable=Goodbye
$
For more information, see the entry for the export
builtin in the GNU Bash manual, and also the sections on command execution environment and environment.
Note that non-exported variables will be available to subshells run via ( ... )
and similar notations because those subshells are direct clones of the main shell:
$ othervar=present
$ (echo $othervar; echo $variable; variable=elephant; echo $variable)
present
Hello
elephant
$ echo $variable
Hello
$
The subshell can change its own copy of any variable, exported or not, and may affect the values seen by the processes it runs, but the subshell's changes cannot affect the variable in the parent shell, of course.
Some information about subshells can be found under command grouping and command execution environment in the Bash manual.
I make it extension method and with string array, I think string[]
is more useful than char[]
because char can also be string:
public static class Helper
{
public static string RemoverStrs(this string str, string[] removeStrs)
{
foreach (var removeStr in removeStrs)
str = str.Replace(removeStr, "");
return str;
}
}
then you can use it anywhere:
string myname = "My name @is ,Wan.;'; Wan";
string result = myname.RemoveStrs(new[]{ "@", ",", ".", ";", "\\"});
In my case, which none of the answers above stated. If your device is using the miniUsb connector, make sure you are using a cable that is not charge-only. I became accustom to using developing with a newer Usb-C device and could not fathom a charge-only cable got mixed with my pack especially since there is no visible way to tell the difference.
Before you uninstall and go through a nightmare of driver reinstall and android menu options. Try a different cable first.
// Enable scrolling based on content height
self.tableView.scrollEnabled = table.contentSize.height > table.frame.size.height;
You must reference it. To do this, open the shortcut menu for the project in Solution Explorer, and then choose References. In the Property Pages dialog box, expand the Common Properties node, select Framework and References, and then choose the Add New Reference button.
This is the simplest way you can have your own javascript function be called when an onSubmit
occurs.
HTML
<form>
<input type="text" name="name">
<input type="submit" name="submit">
</form>
JavaScript
window.onload = function() {
var form = document.querySelector("form");
form.onsubmit = submitted.bind(form);
}
function submitted(event) {
event.preventDefault();
}
I was having the same issue, where:
No marketplace entries found to handle build-helper-maven-plugin:1.8:add-source in Eclipse. Please see Help for more information.
and clicking the Window > Preferences > Maven > Discovery > open catalog button would report no connection.
Updating from 7u40 to 7u45 on Centos 6.4 and OSX fixes the issue.
You can use pathlib.
For Python 3.5 and above:
from pathlib import Path
contents = Path(file_path).read_text()
For older versions of Python use pathlib2:
$ pip install pathlib2
Then:
from pathlib2 import Path
contents = Path(file_path).read_text()
This is the actual read_text
implementation:
def read_text(self, encoding=None, errors=None):
"""
Open the file in text mode, read it, and close the file.
"""
with self.open(mode='r', encoding=encoding, errors=errors) as f:
return f.read()
Dictionaries have a built in function called iterkeys()
.
Try:
for team in league.iterkeys():
runs_scored = float(league[team][0])
runs_allowed = float(league[team][1])
win_percentage = round((runs_scored**2)/((runs_scored**2)+(runs_allowed**2))*1000)
print win_percentage
Delete the artifacts (or the full local repo) from c:\Users\<username>\.m2\repository
by hand.
Just use this js file. (I mentioned 2 examples with different js files. hope the second one is what you need) You can simply change the scroll amount, speed etc by changing the parameters.
https://github.com/nathco/jQuery.scrollSpeed
Here's a Demo
ALTER TABLE myTable ALTER COLUMN myColumn {DataType} NULL
where {DataType}
is the current data type of that column (For example int
or varchar(10)
)
In my case, the 'page.dt' event did not do the trick.
I used 'draw.dt' event instead, and it works!, some code:
$(document).on('draw.dt', function () {
//Do something
});
'Draw.dt' event is fired everytime the datatable page change by searching, ordering or page changing.
/***** Aditional Info *****/
There are some diferences in the way we can declare the event listener. You can asign it to the 'document' or to a 'html object'. The 'document' listeners will always exist in the page and the 'html object' listener will exist only if the object exist in the DOM in the moment of the declaration. Some code:
//Document event listener
$(document).on('draw.dt', function () {
//This will also work with objects loaded by ajax calls
});
//HTML object event listener
$("#some-id").on('draw.dt', function () {
//This will work with existing objects only
});
What regex engine are you using? Most of them will support the following expression:
\{\d+:\d+\}
The \d
is actually shorthand for [0-9]
, but the important part is the addition of +
which means "one or more".
Nesting a stackpanel will cause the textbox to wrap properly:
<Viewbox Margin="120,0,120,0">
<StackPanel Orientation="Vertical" Width="400">
<TextBlock x:Name="subHeaderText"
FontSize="20"
TextWrapping="Wrap"
Foreground="Black"
Text="Lorem ipsum dolor, lorem isum dolor,Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet " />
</StackPanel>
</Viewbox>
For
<%=clients%>
to work you need to have a public or protected variable clients
in the code-behind.
Here is an article that explains it: http://msdn.microsoft.com/en-us/library/6c3yckfw.aspx
I use this with fold in indent mode :
v open Visual mode anywhere on the block
zaza toogle it twice
The first and third ways are the same: they evaluate an array in scalar context. I would consider this to be the standard way to get an array's size.
The second way actually returns the last index of the array, which is not (usually) the same as the array size.
If you don't specify visibility for a class member, it defaults to "private". You should make your members private or protected if you want to access them in a subclass.
Pass the sheet name with the Range parameter of the DoCmd.TransferSpreadsheet Method. See the box titled "Worksheets in the Range Parameter" near the bottom of that page.
This code imports from a sheet named "temp" in a workbook named "temp.xls", and stores the data in a table named "tblFromExcel".
Dim strXls As String
strXls = CurrentProject.Path & Chr(92) & "temp.xls"
DoCmd.TransferSpreadsheet acImport, , "tblFromExcel", _
strXls, True, "temp!"
You can use jQuery.children property.
var numItems = $('.wrapper').children('div').length;
for more information refer http://api.jquery.com/
Download Microsoft Drivers for PHP for SQL Server. Extract the files and use one of:
File Thread Safe VC Bulid
php_sqlsrv_53_nts_vc6.dll No VC6
php_sqlsrv_53_nts_vc9.dll No VC9
php_sqlsrv_53_ts_vc6.dll Yes VC6
php_sqlsrv_53_ts_vc9.dll Yes VC9
You can see the Thread Safety status in phpinfo().
Add the correct file to your ext directory and the following line to your php.ini:
extension=php_sqlsrv_53_*_vc*.dll
Use the filename of the file you used.
As Gordon already posted this is the new Extension from Microsoft and uses the sqlsrv_* API instead of mssql_*
Update:
On Linux you do not have the requisite drivers and neither the SQLSERV Extension.
Look at Connect to MS SQL Server from PHP on Linux? for a discussion on this.
In short you need to install FreeTDS and YES you need to use mssql_* functions on linux. see update 2
To simplify things in the long run I would recommend creating a wrapper class with requisite functions which use the appropriate API (sqlsrv_* or mssql_*) based on which extension is loaded.
Update 2: You do not need to use mssql_* functions on linux. You can connect to an ms sql server using PDO + ODBC + FreeTDS. On windows, the best performing method to connect is via PDO + ODBC + SQL Native Client since the PDO + SQLSRV driver can be incredibly slow.
You should try that Pen I hope that will help you and even give more better functionality to use fixed navigation
1.clear:both;
you dont need to use clear
Have you tried QCoreApplication::applicationDirPath()
qDebug() << "App path : " << qApp->applicationDirPath();
There's very little reason not to open multiple workbooks in Excel. Key lines of code are:
Application.EnableEvents = False
Application.ScreenUpdating = False
...then you won't see anything whilst the code runs, and no code will run that is associated with the opening of the second workbook. Then there are...
Application.DisplayAlerts = False
Application.Calculation = xlManual
...so as to stop you getting pop-up messages associated with the content of the second file, and to avoid any slow re-calculations. Ensure you set back to True/xlAutomatic at end of your programming
If opening the second workbook is not going to cause performance issues, you may as well do it. In fact, having the second workbook open will make it very beneficial when attempting to debug your code if some of the secondary files do not conform to the expected format
Here is some expert guidance on using multiple Excel files that gives an overview of the different methods available for referencing data
An extension question would be how to cycle through multiple files contained in the same folder. You can use the Windows folder picker using:
With Application.FileDialog(msoFileDialogFolderPicker)
.Show
If .Selected.Items.Count = 1 the InputFolder = .SelectedItems(1)
End With
FName = VBA.Dir(InputFolder)
Do While FName <> ""
'''Do function here
FName = VBA.Dir()
Loop
Hopefully some of the above will be of use
First, I add the references to my Model, then I use them in my code. There are two references you should add:
using System.ServiceModel;
using System.Runtime.Serialization;
then, this problem was solved in my program. I hope this answer can help you. Thanks.
Even though it's too late, I'd like to give my input on this as it might clarify why the solution given by JB Nizet works. I stumbled upon this little problem working on a byte parser and to string conversion myself. When you copy from a bigger size integral type to a smaller size integral type as this java doc says this happens:
https://docs.oracle.com/javase/specs/jls/se7/html/jls-5.html#jls-5.1.3 A narrowing conversion of a signed integer to an integral type T simply discards all but the n lowest order bits, where n is the number of bits used to represent type T. In addition to a possible loss of information about the magnitude of the numeric value, this may cause the sign of the resulting value to differ from the sign of the input value.
You can be sure that a byte is an integral type as this java doc says https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html byte: The byte data type is an 8-bit signed two's complement integer.
So in the case of casting an integer(32 bits) to a byte(8 bits), you just copy the last (least significant 8 bits) of that integer to the given byte variable.
int a = 128;
byte b = (byte)a; // Last 8 bits gets copied
System.out.println(b); // -128
Second part of the story involves how Java unary and binary operators promote operands. https://docs.oracle.com/javase/specs/jls/se7/html/jls-5.html#jls-5.6.2 Widening primitive conversion (§5.1.2) is applied to convert either or both operands as specified by the following rules:
If either operand is of type double, the other is converted to double.
Otherwise, if either operand is of type float, the other is converted to float.
Otherwise, if either operand is of type long, the other is converted to long.
Otherwise, both operands are converted to type int.
Rest assured, if you are working with integral type int and/or lower it'll be promoted to an int.
// byte b(0x80) gets promoted to int (0xFF80) by the & operator and then
// 0xFF80 & 0xFF (0xFF translates to 0x00FF) bitwise operation yields
// 0x0080
a = b & 0xFF;
System.out.println(a); // 128
I scratched my head around this too :). There is a good answer for this here by rgettman. Bitwise operators in java only for integer and long?
Once I'd discovered all the information of how my client was handling the encryption/decryption at their end it was straight forward using the AesManaged example suggested by dtb.
The finally implemented code started like this:
try
{
// Create a new instance of the AesManaged class. This generates a new key and initialization vector (IV).
AesManaged myAes = new AesManaged();
// Override the cipher mode, key and IV
myAes.Mode = CipherMode.ECB;
myAes.IV = new byte[16] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; // CRB mode uses an empty IV
myAes.Key = CipherKey; // Byte array representing the key
myAes.Padding = PaddingMode.None;
// Create a encryption object to perform the stream transform.
ICryptoTransform encryptor = myAes.CreateEncryptor();
// TODO: perform the encryption / decryption as required...
}
catch (Exception ex)
{
// TODO: Log the error
throw ex;
}
An other approach after trying the solutions below. When you need it clear, just initialise your list to new clear new list.
List<ModelData> dataLists = new ArrayList<>();
RaporAdapter adapter = new RaporAdapter(AyrintiliRapor.this, dataLists);
listview.setAdapter(adapter);
Or set visibility to Gone / Invisible up to need
img_pdf.setVisibility(View.INVISIBLE);
Solution for me was (thx to David Ljung Madison post)
adb kill-server
After so much trouble i got it.
.purple_checkbox:after {
content: " ";
background-color: #5C2799;
display: inline-block;
visibility: visible;
}
.purple_checkbox:checked:after {
content: "\2714";
box-shadow: 0px 2px 4px rgba(155, 155, 155, 0.15);
border-radius: 3px;
height: 12px;
display: block;
width: 12px;
text-align: center;
font-size: 9px;
color: white;
}
This will do what you want:
INSERT INTO table2 (st_id,uid,changed,status,assign_status)
SELECT st_id,from_uid,now(),'Pending','Assigned'
FROM table1
If you want to include all rows from table1. Otherwise you can add a WHERE statement to the end if you want to add only a subset of table1.
I hope this helps.
You can simply do a replace in your string like
Str.Replace(@"\\",@"\");
If you wrote this "getElementByClassName" then you will encounter with this error "document.getElementByClass is not a function" so to overcome that error just write "getElementsByClassName". Because it should be Elements not Element.
Documentation for crypto: http://nodejs.org/api/crypto.html
const crypto = require('crypto')
const text = 'I love cupcakes'
const key = 'abcdeg'
crypto.createHmac('sha1', key)
.update(text)
.digest('hex')
Add Following Code
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.new_item:
Intent i = new Intent(this,SecondActivity.class);
this.startActivity(i);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
In javascript almost everything is an object, null
and undefined
are exception.
Instances of Array
is an object. so you can set property of an array, for the same reason,you can't set property of a undefined, because its NOT an object
Here is some code to apply binary mask on a video frame sequence acquired from a webcam. comment and uncomment the "bitwise_not(Mon_mask,Mon_mask);"line and see the effect.
bests, Ahmed.
#include "cv.h" // include it to used Main OpenCV functions.
#include "highgui.h" //include it to use GUI functions.
using namespace cv;
using namespace std;
int main(int argc, char** argv)
{
int c;
int radius=100;
CvPoint2D32f center;
//IplImage* color_img;
Mat image, image0,image1;
IplImage *tmp;
CvCapture* cv_cap = cvCaptureFromCAM(0);
while(1) {
tmp = cvQueryFrame(cv_cap); // get frame
// IplImage to Mat
Mat imgMat(tmp);
image =tmp;
center.x = tmp->width/2;
center.y = tmp->height/2;
Mat Mon_mask(image.size(), CV_8UC1, Scalar(0,0,0));
circle(Mon_mask, center, radius, Scalar(255,255,255), -1, 8, 0 ); //-1 means filled
bitwise_not(Mon_mask,Mon_mask);// commenté ou pas = RP ou DMLA
if(tmp != 0)
imshow("Glaucom", image); // show frame
c = cvWaitKey(10); // wait 10 ms or for key stroke
if(c == 27)
break; // if ESC, break and quit
}
/* clean up */
cvReleaseCapture( &cv_cap );
cvDestroyWindow("Glaucom");
}
Templates:
Pass function name and argument.
<a href="{{ url_for('get_blog_post',id = blog.id)}}">{{blog.title}}</a>
View,function
@app.route('/blog/post/<string:id>',methods=['GET'])
def get_blog_post(id):
return id
My answer will work for anyone wanting to click a definitive area of the page. This worked for me on my absolutely-positioned :after
Thanks to this article, I realized (with jQuery) I can use e.pageY
and e.pageX
instead of worrying about e.offsetY/X
and e.clientY/X
issue between browsers.
Through my trial and error, I started to use the clientX and clientY mouse coordinates in the jQuery event object. These coordinates gave me the X and Y offset of the mouse relative to the top-left corner of the browser's view port. As I was reading the jQuery 1.4 Reference Guide by Karl Swedberg and Jonathan Chaffer, however, I saw that they often referred to the pageX and pageY coordinates. After checking the updated jQuery documentation, I saw that these were the coordinates standardized by jQuery; and, I saw that they gave me the X and Y offset of the mouse relative to the entire document (not just the view port).
I liked this event.pageY
idea because it would always be the same, as it was relative to the document. I can compare it to my :after's parent element using offset(), which returns its X and Y also relative to the document.
Therefore, I can come up with a range of "clickable" region on the entire page that never changes.
Here's my demo on codepen.
or if too lazy for codepen, here's the JS:
* I only cared about the Y values for my example.
var box = $('.box');
// clickable range - never changes
var max = box.offset().top + box.outerHeight();
var min = max - 30; // 30 is the height of the :after
var checkRange = function(y) {
return (y >= min && y <= max);
}
box.click(function(e){
if ( checkRange(e.pageY) ) {
// do click action
box.toggleClass('toggle');
}
});
You can also fill you data in the prerender event. This way you can keep your validation and stay secure. Here is an example using a repeater.
protected void Page_PreRender(object sender, EventArgs e)
{
List<Objects.User> users = Application.User.GetAllUsers();
Repeater1.DataSource = users;
Repeater1.DataBind();
}
What about little simpler approach.
Item last = null;
foreach (Item result in Model.Results)
{
// do something with each item
last = result;
}
//Here Item 'last' contains the last object that came in the last of foreach loop.
DoSomethingOnLastElement(last);
As actual error is
gcc ... -I/usr/include/python2.7 ...
_mysql.c:29:20: error: Python.h: No such file or directory
and If you can't install python-dev or python-devel packages, you may download archive with needed version of python sources from http://hg.python.org/ and place headers files in proper folder for include
The top answer, by jondavidjohn is good but I'd like to tweak it to address a couple of points:
http
to a page on https
.jquery.com
's protocol to https
results in a warning if you try it straight from the browser's URL bar: This is probably not the site you are looking for!
My only issue is that I have to include a version number where in the console I really always want the latest.
var jq = document.createElement('script');
jq.src = "//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js";
document.getElementsByTagName('head')[0].appendChild(jq);
jQuery.noConflict();
For me, it relate to Firewall setting. Go to your firewall setting, allow DTC Service and it worked.
select true from tablename where condition limit 1;
I believe that this is the query that postgres uses for checking foreign keys.
In your case, you could do this in one go too:
insert into yourtable select $userid, $rightid, $count where not (select true from yourtable where userid = $userid limit 1);
The id is used to uniquely identify an element in JavaScript or CSS.
The name is used in form submission. When you submit a form only the fields with a name will be submitted.
You can achieve this by piping and then using xargs
. The catch is you need to use the -I
flag which will replace the substring in your bash command with the substring passed by each of the xargs
.
ls -d */ | xargs -I {} bash -c "cd '{}' && pwd"
You may want to replace pwd
with whatever command you want to execute in each directory.
I like the comparator class SortIgnoreCase
, but would have used this
public class SortIgnoreCase implements Comparator<String> {
public int compare(String s1, String s2) {
return s1.compareToIgnoreCase(s2); // Cleaner :)
}
}
You are touching multiple issues here:
1) A stack trace should never be visibile to end users (for user experience and security purposes)
Yes, it should be accessible to diagnose problems of end-users, but end-user should not see them for two reasons:
2) Generating a stack trace is a relatively expensive process (though unlikely to be an issue in most 'exception'al circumstances)
Generating a stack trace happens when the exception is being created/thrown (that's why throwing an exception comes with a price), printing is not that expensive. In fact you can override Throwable#fillInStackTrace()
in your custom exception effectively making throwing an exception almost as cheap as a simple GOTO statement.
3) Many logging frameworks will print the stack trace for you (ours does not and no, we can't change it easily)
Very good point. The main issue here is: if the framework logs the exception for you, do nothing (but make sure it does!) If you want to log the exception yourself, use logging framework like Logback or Log4J, to not put them on the raw console because it is very hard to control it.
With logging framework you can easily redirect stack traces to file, console or even send them to a specified e-mail address. With hardcoded printStackTrace()
you have to live with the sysout
.
4) Printing the stack trace does not constitute error handling. It should be combined with other information logging and exception handling.
Again: log SQLException
correctly (with the full stack trace, using logging framework) and show nice: "Sorry, we are currently not able to process your request" message. Do you really think the user is interested in the reasons? Have you seen StackOverflow error screen? It's very humorous, but does not reveal any details. However it ensures the user that the problem will be investigated.
But he will call you immediately and you need to be able to diagnose the problem. So you need both: proper exception logging and user-friendly messages.
To wrap things up: always log exceptions (preferably using logging framework), but do not expose them to the end-user. Think carefully and about error-messages in your GUI, show stack traces only in development mode.
#include <unistd.h>
#include <termios.h>
char getch(void)
{
char buf = 0;
struct termios old = {0};
fflush(stdout);
if(tcgetattr(0, &old) < 0)
perror("tcsetattr()");
old.c_lflag &= ~ICANON;
old.c_lflag &= ~ECHO;
old.c_cc[VMIN] = 1;
old.c_cc[VTIME] = 0;
if(tcsetattr(0, TCSANOW, &old) < 0)
perror("tcsetattr ICANON");
if(read(0, &buf, 1) < 0)
perror("read()");
old.c_lflag |= ICANON;
old.c_lflag |= ECHO;
if(tcsetattr(0, TCSADRAIN, &old) < 0)
perror("tcsetattr ~ICANON");
printf("%c\n", buf);
return buf;
}
Remove the last printf
if you don't want the character to be displayed.
If your dropping the database in SQL Management Studio and you get the message, don't forget that you use Master as selected database otherwise your query is also an connection to the database.
USE Master;
GO
DROP DATABASE AdventureWorks;
GO
Yes, you can have it on multiple lines using the white-space css property :)
input[type="submit"] {_x000D_
white-space: normal;_x000D_
width: 100px;_x000D_
}
_x000D_
<input type="submit" value="Some long text that won't fit." />
_x000D_
add this to your element
white-space: normal;
width: 100px;
When i use startactivity in one fragment, i will get this exception;
When i change to use startactivityforresult, the exception is gone :)
So the easy way to fix it is use the startActivityForResult api :)
If the directory ../.foo/bar/
doesn't exist, you can't create a file there, so make sure you create the directory first.
Try something like this:
File f = new File("somedirname1/somedirname2/somefilename");
if (!f.getParentFile().exists())
f.getParentFile().mkdirs();
if (!f.exists())
f.createNewFile();
Answering to your question whether that is achievable or not, then yes that is achievable using "goto" operator of php.
But ethically, its not a good practice to use "goto" and of there is any need to use goto then this means that code need to be reconstructed such that requirement of goto can be removed.
According to the sample code you posted above, it can be clearly seen that the code can be reconstructed and the code that is no more required can be either deleted or commented (if possibility is there for use in future).
GSON has a builder that takes a Reader object: fromJson(Reader json, Class classOfT).
This means you can create a Reader from a URL and then pass it to Gson to consume the stream and do the deserialisation.
Only three lines of relevant code.
import java.io.InputStreamReader;
import java.net.URL;
import java.util.Map;
import com.google.gson.Gson;
public class GsonFetchNetworkJson {
public static void main(String[] ignored) throws Exception {
URL url = new URL("https://httpbin.org/get?color=red&shape=oval");
InputStreamReader reader = new InputStreamReader(url.openStream());
MyDto dto = new Gson().fromJson(reader, MyDto.class);
// using the deserialized object
System.out.println(dto.headers);
System.out.println(dto.args);
System.out.println(dto.origin);
System.out.println(dto.url);
}
private class MyDto {
Map<String, String> headers;
Map<String, String> args;
String origin;
String url;
}
}
If you happen to get a 403 error code with an endpoint which otherwise works fine (e.g. with
curl
or other clients) then a possible cause could be that the endpoint expects aUser-Agent
header and by default Java URLConnection is not setting it. An easy fix is to add at the top of the file e.g.System.setProperty("http.agent", "Netscape 1.0");
.
Are you sure the page you are redirecting too doesn't have a redirection within that if no session data is found? That could be your problem
Also yes always add whitespace like @Peter O suggested.
Here is how I do it in 2018. Who knows, maybe an R newbie will see it one day and fall in love with ggplot2
.
library(ggplot2)
ggplot(data = iris, aes(Petal.Length, Petal.Width, color = Species)) +
geom_point() +
scale_color_manual(values = c("setosa" = "red", "versicolor" = "blue", "virginica" = "yellow"))
for windows users: In case of you can't remove .lock
file and it gives you the following:
And you know that eclipse is already closed, just open Task Manager then processes then end precess
for all eclipse.exe occurrences in the processes list.
In most situations the best solution is to rely on the so-called "user site" location (see the PEP for details) by running:
pip install --user package_name
Below is a more "manual" way from my original answer, you do not need to read it if the above solution works for you.
With easy_install you can do:
easy_install --prefix=$HOME/local package_name
which will install into
$HOME/local/lib/pythonX.Y/site-packages
(the 'local' folder is a typical name many people use, but of course you may specify any folder you have permissions to write into).
You will need to manually create
$HOME/local/lib/pythonX.Y/site-packages
and add it to your PYTHONPATH
environment variable (otherwise easy_install will complain -- btw run the command above once to find the correct value for X.Y).
If you are not using easy_install
, look for a prefix option, most install scripts let you specify one.
With pip you can use:
pip install --install-option="--prefix=$HOME/local" package_name
simple approach:
List<int>[] a = new List<int>[100];
for (int i = 0; i < a.Length; i++)
{
a[i] = new List<int>();
}
or LINQ
approach
var b = Enumerable.Range(0,100).Select((i)=>new List<int>()).ToArray();
Copying Will's comment into an answer, because I found it useful:
var string = "this is a string";
var length = 20;
var trimmedString = string.length > length ?
string.substring(0, length - 3) + "..." :
string;
Thanks Will.
And a jsfiddle for anyone who cares https://jsfiddle.net/t354gw7e/ :)
For symfony 2.6 and above we can use
{{ app.user.getFirstname() }}
as app.security global variable for Twig template has been deprecated and will be removed from 3.0
more info:
http://symfony.com/blog/new-in-symfony-2-6-security-component-improvements
and see the global variables in
http://symfony.com/doc/current/reference/twig_reference.html
Apparently --max-depth
option is not in Mac OS X's version of the du
command. You can use the following instead.
du -h -d 1 | sort -n
mystycs, you are using the variable i
to control your loop, however you are editing the value of i
within the loop:
for (int i=0; i < positiveInteger; i++)
{
i = startingNumber + 1;
cout << i;
}
Try this instead:
int sum = 0;
for (int i=0; i < positiveInteger; i++)
{
sum = sum + i;
cout << sum << " " << i;
}
try this:
import net.sf.json.JSONObject;
import net.sf.json.JSONSerializer;
import org.apache.commons.io.IOUtils;
public class JsonParsing {
public static void main(String[] args) throws Exception {
InputStream is =
JsonParsing.class.getResourceAsStream( "sample-json.txt");
String jsonTxt = IOUtils.toString( is );
JSONObject json = (JSONObject) JSONSerializer.toJSON( jsonTxt );
double coolness = json.getDouble( "coolness" );
int altitude = json.getInt( "altitude" );
JSONObject pilot = json.getJSONObject("pilot");
String firstName = pilot.getString("firstName");
String lastName = pilot.getString("lastName");
System.out.println( "Coolness: " + coolness );
System.out.println( "Altitude: " + altitude );
System.out.println( "Pilot: " + lastName );
}
}
and this is your sample-json.txt , should be in json format
{
'foo':'bar',
'coolness':2.0,
'altitude':39000,
'pilot':
{
'firstName':'Buzz',
'lastName':'Aldrin'
},
'mission':'apollo 11'
}
$(this).siblings(".bidbutton")
I just ran into this problem and the actual issue was that I forgot to add a proper application/json header before spitting out the actual JSON data.
header('Content-Type: application/json');
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.0</version>
</dependency>
i don't use ssl authentication and this jackson-databind contain jackson-core.jar and jackson-databind.jar, and then change the RequestMapping content like this:
@RequestMapping(value = "/id/{number}", produces = "application/json; charset=UTF-8", method = RequestMethod.GET)
public @ResponseBody Customer findCustomer(@PathVariable int number){
Customer result = customerService.findById(number);
return result;
}
attention: if your produces is not "application/json" type and i had not noticed this and got an 406 error, help this can help you out.
You need to check out the attr
method in the jQuery docs. You are misusing it. What you are doing within the if statements simply replaces all image tags src
with the string specified in the 2nd parameter.
A better way to approach replacing a series of images source would be to loop through each and check it's source.
Example:
$('img').each(function () {
var curSrc = $(this).attr('src');
if ( curSrc === 'http://example.com/smith.gif' ) {
$(this).attr('src', 'http://example.com/johnson.gif');
}
if ( curSrc === 'http://example.com/williams.gif' ) {
$(this).attr('src', 'http://example.com/brown.gif');
}
});
The char already has an IsDigit(char c) which does this:
public static bool IsDigit(char c)
{
if (!char.IsLatin1(c))
return CharUnicodeInfo.GetUnicodeCategory(c) == UnicodeCategory.DecimalDigitNumber;
if ((int) c >= 48)
return (int) c <= 57;
else
return false;
}
You can simply do this:
var theString = "839278";
bool digitsOnly = theString.All(char.IsDigit);
As others have pointed out, there are many web frameworks for Python.
But, seeing as you are just getting started with Python, a simple CGI script might be more appropriate:
Rename your script to index.cgi
. You also need to execute chmod +x index.cgi
to give it execution privileges.
Add these 2 lines in the beginning of the file:
#!/usr/bin/python print('Content-type: text/html\r\n\r')
After this the Python code should run just like in terminal, except the output goes to the browser. When you get that working, you can use the cgi module to get data back from the browser.
Note: this assumes that your webserver is running Linux. For Windows, #!/Python26/python
might work instead.
Suppose we have a generator:
def gen():
for i in range(10):
yield i
We can wrap the generator, along with the known length, in an object:
import itertools
class LenGen(object):
def __init__(self,gen,length):
self.gen=gen
self.length=length
def __call__(self):
return itertools.islice(self.gen(),self.length)
def __len__(self):
return self.length
lgen=LenGen(gen,10)
Instances of LenGen
are generators themselves, since calling them returns an iterator.
Now we can use the lgen
generator in place of gen
, and access len(lgen)
as well:
def new_gen():
for i in lgen():
yield float(i)/len(lgen)
for i in new_gen():
print(i)
Try this
{% if var in ['foo', 'bar', 'beer'] %}
...
{% endif %}
Another way would be to use .Net parser for HttpRequest. To do that you need to use a bit of reflection and simple class for WorkerRequest.
First create class that derives from HttpWorkerRequest (for simplicity you can use SimpleWorkerRequest):
public class MyWorkerRequest : SimpleWorkerRequest
{
private readonly string _size;
private readonly Stream _data;
private string _contentType;
public MyWorkerRequest(Stream data, string size, string contentType)
: base("/app", @"c:\", "aa", "", null)
{
_size = size ?? data.Length.ToString(CultureInfo.InvariantCulture);
_data = data;
_contentType = contentType;
}
public override string GetKnownRequestHeader(int index)
{
switch (index)
{
case (int)HttpRequestHeader.ContentLength:
return _size;
case (int)HttpRequestHeader.ContentType:
return _contentType;
}
return base.GetKnownRequestHeader(index);
}
public override int ReadEntityBody(byte[] buffer, int offset, int size)
{
return _data.Read(buffer, offset, size);
}
public override int ReadEntityBody(byte[] buffer, int size)
{
return ReadEntityBody(buffer, 0, size);
}
}
Then wherever you have you message stream create and instance of this class. I'm doing it like that in WCF Service:
[WebInvoke(Method = "POST",
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Bare)]
public string Upload(Stream data)
{
HttpWorkerRequest workerRequest =
new MyWorkerRequest(data,
WebOperationContext.Current.IncomingRequest.ContentLength.
ToString(CultureInfo.InvariantCulture),
WebOperationContext.Current.IncomingRequest.ContentType
);
And then create HttpRequest using activator and non public constructor
var r = (HttpRequest)Activator.CreateInstance(
typeof(HttpRequest),
BindingFlags.Instance | BindingFlags.NonPublic,
null,
new object[]
{
workerRequest,
new HttpContext(workerRequest)
},
null);
var runtimeField = typeof (HttpRuntime).GetField("_theRuntime", BindingFlags.Static | BindingFlags.NonPublic);
if (runtimeField == null)
{
return;
}
var runtime = (HttpRuntime) runtimeField.GetValue(null);
if (runtime == null)
{
return;
}
var codeGenDirField = typeof(HttpRuntime).GetField("_codegenDir", BindingFlags.Instance | BindingFlags.NonPublic);
if (codeGenDirField == null)
{
return;
}
codeGenDirField.SetValue(runtime, @"C:\MultipartTemp");
After that in r.Files
you will have files from your stream.
On Ubuntu it is advised to use the distributions repository. So installing python-mysqldb should be straight forward:
sudo apt-get install python-mysqldb
If you actually want to use pip to install, which is as mentioned before not the suggested path but possible, please have a look at this previously asked question and answer: pip install mysql-python fails with EnvironmentError: mysql_config not found
Here is a very comprehensive guide by the developer: http://mysql-python.blogspot.no/2012/11/is-mysqldb-hard-to-install.html
To get all the prerequisites for python-mysqld to install it using pip (which you will want to do if you are using virtualenv), run this:
sudo apt-get install build-essential python-dev libmysqlclient-dev
Try this (via a shell):
update db
locate index.html
Or:
find /var -iname "index.html"
Replace /var with your best guess as to the directory it is in but avoid starting from /
Well, if yo don't know where is my.cnf (such Mac OS X installed with homebrew), or You are looking found others choices:
ps aux|grep mysql
abkrim 1160 0.0 0.2 2913068 26224 ?? R Tue04PM 0:14.63 /usr/local/opt/mariadb/bin/mysqld --basedir=/usr/local/opt/mariadb --datadir=/usr/local/var/mysql --plugin-dir=/usr/local/opt/mariadb/lib/plugin --bind-address=127.0.0.1 --log-error=/usr/local/var/mysql/iMac-2.local.err --pid-file=iMac-2.local.pid
You get datadir=/usr/local/var/mysql