Normally, that is not an error per se; it is a warning that the first file it found that matches the -lPI-Http
argument to the compiler/linker is not valid. The error occurs when no other library can be found with the right content.
So, you need to look to see whether /dvlpmnt/libPI-Http.a
is a library of 32-bit object files or of 64-bit object files - it will likely be 64-bit if you are compiling with the -m32
option. Then you need to establish whether there is an alternative libPI-Http.a
or libPI-Http.so
file somewhere else that is 32-bit. If so, ensure that the directory that contains it is listed in a -L/some/where
argument to the linker. If not, then you will need to obtain or build a 32-bit version of the library from somewhere.
To establish what is in that library, you may need to do:
mkdir junk
cd junk
ar x /dvlpmnt/libPI-Http.a
file *.o
cd ..
rm -fr junk
The 'file
' step tells you what type of object files are in the archive. The rest just makes sure you don't make a mess that can't be easily cleaned up.
def percentage_match(mainvalue,comparevalue):
if mainvalue >= comparevalue:
matched_less = mainvalue - comparevalue
no_percentage_matched = 100 - matched_less*100.0/mainvalue
no_percentage_matched = str(no_percentage_matched) + ' %'
return no_percentage_matched
else:
print('please checkout your value')
print percentage_match(100,10)
Ans = 10.0 %
You can use the first line of the function as a one-liner if you like:
function repeat(str, len) {
while (str.length < len) str += str.substr(0, len-str.length);
return str;
}
I use:
var firstFive = stringValue?.Substring(0, stringValue.Length >= 5 ? 5 : customAlias.Length);
or alternative if you want to check for Whitespace too (instead of only Null):
var firstFive = !String.IsNullOrWhiteSpace(stringValue) && stringValue.Length >= 5 ? stringValue.Substring(0, 5) : stringValue
This rings a bell. I came across a similar problem in the past,
You can generate an assemblyInfo.cs by right clicking the project and chosing properties. In the application tab fill in the details and press save, this will generate the assemblyInfo.cs file for you. If you build your project after that, it should work.
Cheers, Tarun
Update 2016-07-08:
For Visual Studio 2010 through the most recent version (2015 at time of writing), LandedGently's comment still applies:
After you select project Properties and the Application tab as @Tarun mentioned, there is a button "Assembly Information..." which opens another dialog. You need to at least fill in the Title here. VS will add the GUID and versions, but if the title is empty, it will not create the AssemblyInfo.cs file.
Series.reset_index
with name
argumentOften the use case comes up where a Series needs to be promoted to a DataFrame. But if the Series has no name, then reset_index
will result in something like,
s = pd.Series([1, 2, 3], index=['a', 'b', 'c']).rename_axis('A')
s
A
a 1
b 2
c 3
dtype: int64
s.reset_index()
A 0
0 a 1
1 b 2
2 c 3
Where you see the column name is "0". We can fix this be specifying a name
parameter.
s.reset_index(name='B')
A B
0 a 1
1 b 2
2 c 3
s.reset_index(name='list')
A list
0 a 1
1 b 2
2 c 3
Series.to_frame
If you want to create a DataFrame without promoting the index to a column, use Series.to_frame
, as suggested in this answer. This also supports a name parameter.
s.to_frame(name='B')
B
A
a 1
b 2
c 3
pd.DataFrame
ConstructorYou can also do the same thing as Series.to_frame
by specifying a columns
param:
pd.DataFrame(s, columns=['B'])
B
A
a 1
b 2
c 3
import java.util.*;
public class HexadeciamlToBinary
{
public static void main()
{
Scanner sc=new Scanner(System.in);
System.out.println("enter the hexadecimal number");
String s=sc.nextLine();
String p="";
long n=0;
int c=0;
for(int i=s.length()-1;i>=0;i--)
{
if(s.charAt(i)=='A')
{
n=n+(long)(Math.pow(16,c)*10);
c++;
}
else if(s.charAt(i)=='B')
{
n=n+(long)(Math.pow(16,c)*11);
c++;
}
else if(s.charAt(i)=='C')
{
n=n+(long)(Math.pow(16,c)*12);
c++;
}
else if(s.charAt(i)=='D')
{
n=n+(long)(Math.pow(16,c)*13);
c++;
}
else if(s.charAt(i)=='E')
{
n=n+(long)(Math.pow(16,c)*14);
c++;
}
else if(s.charAt(i)=='F')
{
n=n+(long)(Math.pow(16,c)*15);
c++;
}
else
{
n=n+(long)Math.pow(16,c)*(long)s.charAt(i);
c++;
}
}
String s1="",k="";
if(n>1)
{
while(n>0)
{
if(n%2==0)
{
k=k+"0";
n=n/2;
}
else
{
k=k+"1";
n=n/2;
}
}
for(int i=0;i<k.length();i++)
{
s1=k.charAt(i)+s1;
}
System.out.println("The respective binary number is : "+s1);
}
else
{
System.out.println("The respective binary number is : "+n);
}
}
}
Use genfromtxt
instead. It's a much more general method than loadtxt
:
import numpy as np
print np.genfromtxt('col.txt',dtype='str')
Using the file col.txt
:
foo bar
cat dog
man wine
This gives:
[['foo' 'bar']
['cat' 'dog']
['man' 'wine']]
If you expect that each row has the same number of columns, read the first row and set the attribute filling_values
to fix any missing rows.
You still need to use their proprietary filters as of IE9 beta 1.
You can use Thread.sleep(3000)
inside for loop.
Note: This will require a try/catch
block.
I am running PHP version 5.4 on shared hosting and both of these both successfully return the same results:
php_uname('n');
gethostname();
i know this is an old post but there is an option to sent the elemd id with the function call:
<button id='expand' class='btn expand' onclick='f1(this)'>Expand</button>
<button id='expand' class='btn expand' onclick='f1(this)'>Expand</button>
<button id='expand' class='btn expand' onclick='f1(this)'>Expand</button>
<button id='expand' class='btn expand' onclick='f1(this)'>Expand</button>
function f1(objButton)
{
if (objButton.innerHTML=="EXPAND") objButton.innerHTML = "MINIMIZE";
else objButton.innerHTML = "EXPAND";
}
Perhaps it is indirect to gdb (because it's an IDE), but my recommendations would be KDevelop. Being quite spoiled with Visual Studio's debugger (professionally at work for many years), I've so far felt the most comfortable debugging in KDevelop (as hobby at home, because I could not afford Visual Studio for personal use - until Express Edition came out). It does "look something similar to" Visual Studio compared to other IDE's I've experimented with (including Eclipse CDT) when it comes to debugging step-through, step-in, etc (placing break points is a bit awkward because I don't like to use mouse too much when coding, but it's not difficult).
Actually, with strings, you can do something like this:
oldStr = 'Hello World!'
newStr = ''
for i in oldStr:
if 'a' < i < 'z':
newStr += chr(ord(i)-32)
else:
newStr += i
print(newStr)
'HELLO WORLD!'
Basically, I'm "adding"+"strings" together into a new string :).
For those using Bootstrap and not wanting to lose the responsivness just do not set the width of the container. The following code is based on gillytech post.
<div id="image_preview" class="row">
<div class='crop col-xs-12 col-sm-6 col-md-6 '>
<img class="col-xs-12 col-sm-6 col-md-6"
id="preview0" src='img/preview_default.jpg'/>
</div>
<div class="col-xs-12 col-sm-6 col-md-6">
more stuff
</div>
</div> <!-- end image preview -->
/*images with the same width*/
.crop {
height: 300px;
/*width: 400px;*/
overflow: hidden;
}
.crop img {
height: auto;
width: 100%;
}
/*images with the same height*/
.crop {
height: 300px;
/*width: 400px;*/
overflow: hidden;
}
.crop img {
height: 100%;
width: auto;
}
It's trivial when you know how:
import yfinance as yf
df = yf.download('CVS', '2015-01-01')
df.to_csv('cvs-health-corp.csv')
If you wish to plot it:
import finplot as fplt
fplt.candlestick_ochl(df[['Open','Close','High','Low']])
fplt.show()
Both answers to this questions are correct, but I was still missing a complete, short solution to backup a Github repository into a local file. The gist is available here, feel free to fork or adapt to your needs.
backup.sh:
#!/bin/bash
# Backup the repositories indicated in the command line
# Example:
# bin/backup user1/repo1 user1/repo2
set -e
for i in $@; do
FILENAME=$(echo $i | sed 's/\//-/g')
echo "== Backing up $i to $FILENAME.bak"
git clone [email protected]:$i $FILENAME.git --mirror
cd "$FILENAME.git"
git bundle create ../$FILENAME.bak --all
cd ..
rm -rf $i.git
echo "== Repository saved as $FILENAME.bak"
done
restore.sh:
#!/bin/bash
# Restore the repository indicated in the command line
# Example:
# bin/restore filename.bak
set -e
FOLDER_NAME=$(echo $1 | sed 's/.bak//')
git clone --bare $1 $FOLDER_NAME.git
If you use C++11, you can use the specifier "override", and it will give you a compiler error if your aren't correctly overriding an abstract method. You probably have a method that doesn't match exactly with an abstract method in the base class, so your aren't actually overriding it.
As to why this still exists - MS doesn't consider it a priority, and values backwards compatibility over advancing their OS (at least in this instance).
A workaround I use is to use the "short names" for the directories in the path, instead of their standard, human-readable versions. So e.g. for C:\Program Files\
I would use C:\PROGRA~1\
You can find the short name equivalents using dir /x
.
If you want to scan to the end of the string (stripping out a newline if there), just use:
char *x = "19 cool kid";
sscanf (x, "%d %[^\n]", &age, buffer);
That's because %s
only matches non-whitespace characters and will stop on the first whitespace it finds. The %[^\n]
format specifier will match every character that's not (because of ^
) in the selection given (which is a newline). In other words, it will match any other character.
Keep in mind that you should have allocated enough space in your buffer to take the string since you cannot be sure how much will be read (a good reason to stay away from scanf/fscanf
unless you use specific field widths).
You could do that with:
char *x = "19 cool kid";
char *buffer = malloc (strlen (x) + 1);
sscanf (x, "%d %[^\n]", &age, buffer);
(you don't need * sizeof(char)
since that's always 1 by definition).
what about something like this:
tell application "Terminal"
activate
do shell script "sudo dscl localhost -create /Local/Default/Hosts/cc.josmoe.com IPAddress 127.0.0.1"
do shell script "sudo dscl localhost -create /Local/Default/Hosts/cc.josmos2.com IPAddress 127.0.0.1"
end tell
// sort algorithm example
#include <iostream> // std::cout
#include <algorithm> // std::sort
#include <vector> // std::vector
using namespace std;
int main () {
char myints[] = {'F','C','E','G','A','H','B','D'};
vector<char> myvector (myints, myints+8); // 32 71 12 45 26 80 53 33
// using default comparison (operator <):
sort (myvector.begin(), myvector.end()); //(12 32 45 71)26 80 53 33
// print out content:
cout << "myvector contains:";
for (int i=0; i!=8; i++)
cout << ' ' <<myvector[i];
cout << '\n';
system("PAUSE");
return 0;
}
I spent a while looking into this and pretty much all of the freeware and shareware on the web sucked. This included software to directly convert the .ppt file to Flash or some sort of video format and also software to record your desktop screen. Software was clunky, and the quality was poor.
The solution we eventually came up with is a little bit manual, but it gave by far the best quality results:
Saving out as .wmv isn't perfect, but I'm sure it's probably quite straightforward to convert that to some other format or Flash. We were looking to get them up on YouTube and this did the trick.
With Git 2.15 (Q4 2017), "git branch
" learned "-c/-C
" to create a new branch by copying an existing one.
See commit c8b2cec (18 Jun 2017) by Ævar Arnfjörð Bjarmason (avar
).
See commit 52d59cc, commit 5463caa (18 Jun 2017) by Sahil Dua (sahildua2305
).
(Merged by Junio C Hamano -- gitster
-- in commit 3b48045, 03 Oct 2017)
branch
: add a--copy
(-c
) option to go with--move
(-m
)Add the ability to
--copy
a branch and its reflog and configuration, this uses the same underlying machinery as the--move
(-m
) option except the reflog and configuration is copied instead of being moved.This is useful for e.g. copying a topic branch to a new version, e.g.
work
towork-2
after submitting thework
topic to the list, while preserving all the tracking info and other configuration that goes with the branch, and unlike--move
keeping the other already-submitted branch around for reference.
Note: when copying a branch, you remain on your current branch.
As Junio C Hamano explains, the initial implementation of this new feature was modifying HEAD, which was not good:
When creating a new branch
B
by copying the branchA
that happens to be the current branch, it also updatesHEAD
to point at the new branch.
It probably was made this way because "git branch -c A B
" piggybacked its implementation on "git branch -m A B
",This does not match the usual expectation.
If I were sitting on a blue chair, and somebody comes and repaints it to red, I would accept ending up sitting on a chair that is now red (I am also OK to stand, instead, as there no longer is my favourite blue chair).But if somebody creates a new red chair, modelling it after the blue chair I am sitting on, I do not expect to be booted off of the blue chair and ending up on sitting on the new red one.
example for inhert from dict, modify its iter
, for example, skip key 2
when in for loop
# method 1
class Dict(dict):
def __iter__(self):
keys = self.keys()
for i in keys:
if i == 2:
continue
yield i
# method 2
class Dict(dict):
def __iter__(self):
for i in super(Dict, self).__iter__():
if i == 2:
continue
yield i
Execute:
SELECT name FROM master.sys.databases
This the preferred approach now, rather than dbo.sysdatabases
, which has been deprecated for some time.
Execute this query:
SELECT name FROM master.dbo.sysdatabases
or if you prefer
EXEC sp_databases
$("#container").delegate("span", "click", function (){
alert(11);
});
<input type="text" autocomplete="off"/>
Should work. Alternatively, use:
<form autocomplete="off" … >
for the entire form (see this related question).
You need to use val rather than value.
$("#fileinput").val();
If the application is running in the foreground, iOS won't show a notification banner/alert. That's by design. You have to write some code to deal with the situation of your app receiving a notification while it is in the foreground. You should show the notification in the most appropriate way (for example, adding a badge number to a UITabBar
icon, simulating a Notification Center banner, etc.).
If you want the first line and then you want to perform some operation on file this code will helpful.
with open(filename , 'r') as f:
first_line = f.readline()
for line in f:
# Perform some operations
function shrinkImage(idOrClass, className, percentShrinkage){
'use strict';
$(idOrClass+className).each(function(){
var shrunkenWidth=this.naturalWidth;
var shrunkenHeight=this.naturalHeight;
$(this).height(shrunkenWidth*percentShrinkage);
$(this).height(shrunkenHeight*percentShrinkage);
});
};
$(document).ready(function(){
'use strict';
shrinkImage(".","anyClass",.5); //CHANGE THE VALUES HERE ONLY.
});
This solution uses js and jquery and resizes based only on the image properties and not on the parent. It can resize a single image or a group based using class and id parameters.
for more, go here: https://gist.github.com/jennyvallon/eca68dc78c3f257c5df5
I believe you'd want to escape by doubling the single quote:
INSERT INTO table_name (field1, field2) VALUES (123, 'Hello there''s');
The primary flag seems to only work for vagrant ssh
for me.
In the past I have used the following method to hack around the issue.
# stage box intended for configuration closely matching production if ARGV[1] == 'stage' config.vm.define "stage" do |stage| box_setup stage, \ "10.9.8.31", "deploy/playbook_full_stack.yml", "deploy/hosts/vagrant_stage.yml" end end
Do you mean to property files located in src/main/resources
? Then you should exclude them using the maven-resource-plugin. See the following page for details:
http://maven.apache.org/plugins/maven-resources-plugin/examples/include-exclude.html
I like this way:
ActiveSheet.UsedRange.Rows.Count
The same can be done with columns count. For me, always work. But, if you have data in another column, the code above will consider them too, because the code is looking for all cell range in the sheet.
--Kotlin Version
package com.ps.salestrackingapp.Services
import android.app.Service
import android.content.Context
import android.content.Intent
import android.location.Location
import android.location.LocationManager
import android.os.Bundle
import android.os.IBinder
import android.util.Log
class LocationService : Service() {
private var mLocationManager: LocationManager? = null
var mLocationListeners = arrayOf(LocationListener(LocationManager.GPS_PROVIDER), LocationListener(LocationManager.NETWORK_PROVIDER))
class LocationListener(provider: String) : android.location.LocationListener {
internal var mLastLocation: Location
init {
Log.e(TAG, "LocationListener $provider")
mLastLocation = Location(provider)
}
override fun onLocationChanged(location: Location) {
Log.e(TAG, "onLocationChanged: $location")
mLastLocation.set(location)
Log.v("LastLocation", mLastLocation.latitude.toString() +" " + mLastLocation.longitude.toString())
}
override fun onProviderDisabled(provider: String) {
Log.e(TAG, "onProviderDisabled: $provider")
}
override fun onProviderEnabled(provider: String) {
Log.e(TAG, "onProviderEnabled: $provider")
}
override fun onStatusChanged(provider: String, status: Int, extras: Bundle) {
Log.e(TAG, "onStatusChanged: $provider")
}
}
override fun onBind(arg0: Intent): IBinder? {
return null
}
override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
Log.e(TAG, "onStartCommand")
super.onStartCommand(intent, flags, startId)
return Service.START_STICKY
}
override fun onCreate() {
Log.e(TAG, "onCreate")
initializeLocationManager()
try {
mLocationManager!!.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER, LOCATION_INTERVAL.toLong(), LOCATION_DISTANCE,
mLocationListeners[1])
} catch (ex: java.lang.SecurityException) {
Log.i(TAG, "fail to request location update, ignore", ex)
} catch (ex: IllegalArgumentException) {
Log.d(TAG, "network provider does not exist, " + ex.message)
}
try {
mLocationManager!!.requestLocationUpdates(
LocationManager.GPS_PROVIDER, LOCATION_INTERVAL.toLong(), LOCATION_DISTANCE,
mLocationListeners[0])
} catch (ex: java.lang.SecurityException) {
Log.i(TAG, "fail to request location update, ignore", ex)
} catch (ex: IllegalArgumentException) {
Log.d(TAG, "gps provider does not exist " + ex.message)
}
}
override fun onDestroy() {
Log.e(TAG, "onDestroy")
super.onDestroy()
if (mLocationManager != null) {
for (i in mLocationListeners.indices) {
try {
mLocationManager!!.removeUpdates(mLocationListeners[i])
} catch (ex: Exception) {
Log.i(TAG, "fail to remove location listners, ignore", ex)
}
}
}
}
private fun initializeLocationManager() {
Log.e(TAG, "initializeLocationManager")
if (mLocationManager == null) {
mLocationManager = applicationContext.getSystemService(Context.LOCATION_SERVICE) as LocationManager
}
}
companion object {
private val TAG = "BOOMBOOMTESTGPS"
private val LOCATION_INTERVAL = 1000
private val LOCATION_DISTANCE = 0f
}
}
I have a situation where I need a function from bash script which must not be executed before (e.g. by source
) and the problem with @$
is that myScript.sh is then run twice, it seems... So I've come up with the idea to get the function out with sed:
sed -n "/^func ()/,/^}/p" myScript.sh
And to execute it at the time I need it, I put it in a file and use source
:
sed -n "/^func ()/,/^}/p" myScript.sh > func.sh; source func.sh; rm func.sh
First change apache listen port 80 to 8080 apache in /etc/apache2/ports.conf include
Listen 1.2.3.4:80 to 1.2.3.4:8080
sudo service apache2 restart
or
sudo service httpd restart // in case of centos
then add nginx as reverse proxy server that will listen apache port
server {
listen 1.2.3.4:80;
server_name some.com;
access_log /var/log/nginx/something-access.log;
location / {
proxy_pass http://localhost:8080;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location ~* ^.+\.(jpg|js|jpeg|png)$ {
root /usr/share/nginx/html/;
}
location /404.html {
root /usr/share/nginx/html/40x.html;
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
# put code for static content like js/css/images/fonts
}
After changes restart nginx server
sudo service nginx restart
Now all traffic will be handled by nginx server and send all dynamic request to apache and static conten is served by nginx server.
For advance configuration like cache :
If you want to validate your date(YYYY-MM-DD)
along with the comparison it will be use full for you...
function validateDate()
{
var newDate = new Date();
var presentDate = newDate.getDate();
var presentMonth = newDate.getMonth();
var presentYear = newDate.getFullYear();
var dateOfBirthVal = document.forms[0].dateOfBirth.value;
if (dateOfBirthVal == null)
return false;
var validatePattern = /^(\d{4})(\/|-)(\d{1,2})(\/|-)(\d{1,2})$/;
dateValues = dateOfBirthVal.match(validatePattern);
if (dateValues == null)
{
alert("Date of birth should be null and it should in the format of yyyy-mm-dd")
return false;
}
var birthYear = dateValues[1];
birthMonth = dateValues[3];
birthDate= dateValues[5];
if ((birthMonth < 1) || (birthMonth > 12))
{
alert("Invalid date")
return false;
}
else if ((birthDate < 1) || (birthDate> 31))
{
alert("Invalid date")
return false;
}
else if ((birthMonth==4 || birthMonth==6 || birthMonth==9 || birthMonth==11) && birthDate ==31)
{
alert("Invalid date")
return false;
}
else if (birthMonth == 2){
var isleap = (birthYear % 4 == 0 && (birthYear % 100 != 0 || birthYear % 400 == 0));
if (birthDate> 29 || (birthDate ==29 && !isleap))
{
alert("Invalid date")
return false;
}
}
else if((birthYear>presentYear)||(birthYear+70<presentYear))
{
alert("Invalid date")
return false;
}
else if(birthYear==presentYear)
{
if(birthMonth>presentMonth+1)
{
alert("Invalid date")
return false;
}
else if(birthMonth==presentMonth+1)
{
if(birthDate>presentDate)
{
alert("Invalid date")
return false;
}
}
}
return true;
}
Oracle 9i+ (maybe 8i too) has FIRST/LAST aggregate functions, that make computation over groups of rows according to row's rank in group. Assuming all rows as one group, you'll get what you want without subqueries:
SELECT
max(MEMBSHIP_ID)
keep (
dense_rank first
order by paym_date desc NULLS LAST
) as LATEST_MEMBER_ID
FROM user_payment
WHERE user_id=1
Just do a
SELECT COUNT(*) FROM table;
You can specify conditions with a Where after that
SELECT COUNT(*) FROM table WHERE eye_color='brown';
ALL_CONSTRAINTS
describes constraint definitions on tables accessible to the current user.
DBA_CONSTRAINTS
describes all constraint definitions in the database.
USER_CONSTRAINTS
describes constraint definitions on tables in the current user's schema
Select CONSTRAINT_NAME,CONSTRAINT_TYPE ,TABLE_NAME ,STATUS from
USER_CONSTRAINTS;
public class TestingData extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
SQLiteDatabase db;
db = openOrCreateDatabase(
"TestingData.db"
, SQLiteDatabase.CREATE_IF_NECESSARY
, null
);
}
}
then see this link link
Based on Kovpas & Damien Praca's Answers, here is an implementation of UILabelUnderligned which also support textAlignemnt.
#import <UIKit/UIKit.h>
@interface UILabelUnderlined : UILabel
@end
and the implementation:
#import "UILabelUnderlined.h"
@implementation DKUILabel
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
}
return self;
}
- (void)drawRect:(CGRect)rect {
CGContextRef ctx = UIGraphicsGetCurrentContext();
const CGFloat* colors = CGColorGetComponents(self.textColor.CGColor);
CGContextSetRGBStrokeColor(ctx, colors[0], colors[1], colors[2], 1.0); // RGBA
CGContextSetLineWidth(ctx, 1.0f);
CGSize textSize = [self.text sizeWithFont:self.font constrainedToSize:CGSizeMake(200, 9999)];
// handle textAlignement
int alignementXOffset = 0;
switch (self.textAlignment) {
case UITextAlignmentLeft:
break;
case UITextAlignmentCenter:
alignementXOffset = (self.frame.size.width - textSize.width)/2;
break;
case UITextAlignmentRight:
alignementXOffset = self.frame.size.width - textSize.width;
break;
}
CGContextMoveToPoint(ctx, alignementXOffset, self.bounds.size.height - 1);
CGContextAddLineToPoint(ctx, alignementXOffset+textSize.width, self.bounds.size.height - 1);
CGContextStrokePath(ctx);
[super drawRect:rect];
}
@end
Quite apart from the timing, this code you show is simply incorrect: you execute 100 connections (completely ignoring all but the last one), and then when you do the first execute call you pass it a local variable query_stmt
which you only initialize after the execute call.
First, make your code correct, without worrying about timing yet: i.e. a function that makes or receives a connection and performs 100 or 500 or whatever number of updates on that connection, then closes the connection. Once you have your code working correctly is the correct point at which to think about using timeit
on it!
Specifically, if the function you want to time is a parameter-less one called foobar
you can use timeit.timeit (2.6 or later -- it's more complicated in 2.5 and before):
timeit.timeit('foobar()', number=1000)
You'd better specify the number of runs because the default, a million, may be high for your use case (leading to spending a lot of time in this code;-).
See A comparison of the C++ casting operators.
However, using the same syntax for a variety of different casting operations can make the intent of the programmer unclear.
Furthermore, it can be difficult to find a specific type of cast in a large codebase.
the generality of the C-style cast can be overkill for situations where all that is needed is a simple conversion. The ability to select between several different casting operators of differing degrees of power can prevent programmers from inadvertently casting to an incorrect type.
You may be interested in using a ORM like Mongoid or MongoMapper.
http://mongoid.org/docs/relations/referenced/1-n.html
In a NoSQL database like MongoDB there are not 'tables' but collections. Documents are grouped inside Collections. You can have any kind of document – with any kind of data – in a single collection. Basically, in a NoSQL database it is up to you to decide how to organise the data and its relations, if there are any.
What Mongoid and MongoMapper do is to provide you with convenient methods to set up relations quite easily. Check out the link I gave you and ask any thing.
Edit:
In mongoid you will write your scheme like this:
class Student
include Mongoid::Document
field :name
embeds_many :addresses
embeds_many :scores
end
class Address
include Mongoid::Document
field :address
field :city
field :state
field :postalCode
embedded_in :student
end
class Score
include Mongoid::Document
belongs_to :course
field :grade, type: Float
embedded_in :student
end
class Course
include Mongoid::Document
field :name
has_many :scores
end
Edit:
> db.foo.insert({group:"phones"})
> db.foo.find()
{ "_id" : ObjectId("4df6539ae90592692ccc9940"), "group" : "phones" }
{ "_id" : ObjectId("4df6540fe90592692ccc9941"), "group" : "phones" }
>db.foo.find({'_id':ObjectId("4df6539ae90592692ccc9940")})
{ "_id" : ObjectId("4df6539ae90592692ccc9940"), "group" : "phones" }
You can use that ObjectId in order to do relations between documents.
It's also cleaner to use @JoinTable
when an Entity could be the child in several parent/child relationships with different types of parents. To follow up with Behrang's example, imagine a Task can be the child of Project, Person, Department, Study, and Process.
Should the task
table have 5 nullable
foreign key fields? I think not...
Lengthy But "Works With No Surprises & No Installations"
This script handles filenames with spaces, quotes, other unusual characters and Unicode, works on case insensitive filesystems and most Unix-y environments that have bash and awk installed (i.e. almost all). It also reports collisions if any (leaving the filename in uppercase) and of course renames both files & directories and works recursively. Finally it's highly adaptable: you can tweak the find command to target the files/dirs you wish and you can tweak awk to do other name manipulations. Note that by "handles Unicode" I mean that it will indeed convert their case (not ignore them like answers that use tr
).
# adapt the following command _IF_ you want to deal with specific files/dirs
find . -depth -mindepth 1 -exec bash -c '
for file do
# adapt the awk command if you wish to rename to something other than lowercase
newname=$(dirname "$file")/$(basename "$file" | awk "{print tolower(\$0)}")
if [ "$file" != "$newname" ] ; then
# the extra step with the temp filename is for case-insensitive filesystems
if [ ! -e "$newname" ] && [ ! -e "$newname.lcrnm.tmp" ] ; then
mv -T "$file" "$newname.lcrnm.tmp" && mv -T "$newname.lcrnm.tmp" "$newname"
else
echo "ERROR: Name already exists: $newname"
fi
fi
done
' sh {} +
References
My script is based on these excellent answers:
https://unix.stackexchange.com/questions/9496/looping-through-files-with-spaces-in-the-names
To achieve this with RxJava 2.x you can use:
Completable.fromAction(this::dowork).subscribeOn(Schedulers.io().subscribe();
The subscribeOn()
method specifies which scheduler to run the action on - RxJava has several predefined schedulers, including Schedulers.io()
which has a thread pool intended for I/O operations, and Schedulers.computation()
which is intended for CPU intensive operations.
Redcar has been getting some attention lately, as well. Still early in its life, but it shows promise.
I had the exact same error, Installing zlib-devel solved my problem, Type the command and install zlib package.
On linux:
sudo apt-get install zlib*
On Centos:
sudo yum install zlib*
I'd say that the main rule of thumb is not to roll your own. Try to use something that has been thoroughly tested, e.g., SHA-1 or something along those lines.
To Hex:
string hex = intValue.ToString("X");
To int:
int intValue = int.Parse(hex, System.Globalization.NumberStyles.HexNumber)
To compare, there are more options:
import (
"fmt"
"regexp"
"strings"
)
const (
str = "something"
substr = "some"
)
// 1. Contains
res := strings.Contains(str, substr)
fmt.Println(res) // true
// 2. Index: check the index of the first instance of substr in str, or -1 if substr is not present
i := strings.Index(str, substr)
fmt.Println(i) // 0
// 3. Split by substr and check len of the slice, or length is 1 if substr is not present
ss := strings.Split(str, substr)
fmt.Println(len(ss)) // 2
// 4. Check number of non-overlapping instances of substr in str
c := strings.Count(str, substr)
fmt.Println(c) // 1
// 5. RegExp
matched, _ := regexp.MatchString(substr, str)
fmt.Println(matched) // true
// 6. Compiled RegExp
re = regexp.MustCompile(substr)
res = re.MatchString(str)
fmt.Println(res) // true
Benchmarks:
Contains
internally calls Index
, so the speed is almost the same (btw Go 1.11.5 showed a bit bigger difference than on Go 1.14.3).
BenchmarkStringsContains-4 100000000 10.5 ns/op 0 B/op 0 allocs/op
BenchmarkStringsIndex-4 117090943 10.1 ns/op 0 B/op 0 allocs/op
BenchmarkStringsSplit-4 6958126 152 ns/op 32 B/op 1 allocs/op
BenchmarkStringsCount-4 42397729 29.1 ns/op 0 B/op 0 allocs/op
BenchmarkStringsRegExp-4 461696 2467 ns/op 1326 B/op 16 allocs/op
BenchmarkStringsRegExpCompiled-4 7109509 168 ns/op 0 B/op 0 allocs/op
Unfortunately there's no min
(or max
)-background-size in CSS you can only use
background-size
. However if you are seeking a responsive background image you can use Vmin
and Vmax
units for the background-size
property to achieve something similar.
#one {
background:url('../img/blahblah.jpg') no-repeat;
background-size:10vmin 100%;
}
that will set the height to 10% of the whichever smaller viewport you have whether vertical or horizontal, and will set the width to 100%.
Read more about css units here: https://www.w3schools.com/cssref/css_units.asp
new Thread() {
public void run() {
try {
Thread.sleep(300);
} catch (InterruptedException e) {
System.out.println("Exception message: " + e.getMessage());
System.out.println("Exception cause: " + e.getCause());
}
}
}.start();
This is also one of the example for anonymous inner type using thread
to get the number of days in a time range (just a count of all days)
(start_date..end_date).count
(start_date..end_date).to_a.size
#=> 32
to get the number of days between 2 dates
(start_date...end_date).count
(start_date...end_date).to_a.size
#=> 31
<!doctype html>
<html lang="en">
<head>
<style id="myStyleSheet">
...
</style>
var column = 3;
var styleSheet = document.getElementById("myStyleSheet").sheet;
var rule = "table tr td:nth-child("+ column +"),table th:nth-child("+ column +")
{display: none}";
styleSheet.insertRule(rule);
You can't put a CLOB in the WHERE clause. From the documentation:
Large objects (LOBs) are not supported in comparison conditions. However, you can use PL/SQL programs for comparisons on CLOB data.
If your values are always less than 4k, you can use:
UPDATE IMS_TEST
SET TEST_Category = 'just testing'
WHERE to_char(TEST_SCRIPT) = 'something'
AND ID = '10000239';
It is strange to search by a CLOB anyways.. could you not just search by the ID column?
I'm going to show you how you can easily define iterators for your custom containers, but just in case I have created a c++11 library that allows you to easily create custom iterators with custom behavior for any type of container, contiguous or non-contiguous.
You can find it on Github
Here are the simple steps to creating and using custom iterators:
typedef blRawIterator< Type > iterator;
typedef blRawIterator< const Type > const_iterator;
iterator begin(){return iterator(&m_data[0]);};
const_iterator cbegin()const{return const_iterator(&m_data[0]);};
Finally, onto defining our custom iterator classes:
NOTE: When defining custom iterators, we derive from the standard iterator categories to let STL algorithms know the type of iterator we've made.
In this example, I define a random access iterator and a reverse random access iterator:
//-------------------------------------------------------------------
// Raw iterator with random access
//-------------------------------------------------------------------
template<typename blDataType>
class blRawIterator
{
public:
using iterator_category = std::random_access_iterator_tag;
using value_type = blDataType;
using difference_type = std::ptrdiff_t;
using pointer = blDataType*;
using reference = blDataType&;
public:
blRawIterator(blDataType* ptr = nullptr){m_ptr = ptr;}
blRawIterator(const blRawIterator<blDataType>& rawIterator) = default;
~blRawIterator(){}
blRawIterator<blDataType>& operator=(const blRawIterator<blDataType>& rawIterator) = default;
blRawIterator<blDataType>& operator=(blDataType* ptr){m_ptr = ptr;return (*this);}
operator bool()const
{
if(m_ptr)
return true;
else
return false;
}
bool operator==(const blRawIterator<blDataType>& rawIterator)const{return (m_ptr == rawIterator.getConstPtr());}
bool operator!=(const blRawIterator<blDataType>& rawIterator)const{return (m_ptr != rawIterator.getConstPtr());}
blRawIterator<blDataType>& operator+=(const difference_type& movement){m_ptr += movement;return (*this);}
blRawIterator<blDataType>& operator-=(const difference_type& movement){m_ptr -= movement;return (*this);}
blRawIterator<blDataType>& operator++(){++m_ptr;return (*this);}
blRawIterator<blDataType>& operator--(){--m_ptr;return (*this);}
blRawIterator<blDataType> operator++(int){auto temp(*this);++m_ptr;return temp;}
blRawIterator<blDataType> operator--(int){auto temp(*this);--m_ptr;return temp;}
blRawIterator<blDataType> operator+(const difference_type& movement){auto oldPtr = m_ptr;m_ptr+=movement;auto temp(*this);m_ptr = oldPtr;return temp;}
blRawIterator<blDataType> operator-(const difference_type& movement){auto oldPtr = m_ptr;m_ptr-=movement;auto temp(*this);m_ptr = oldPtr;return temp;}
difference_type operator-(const blRawIterator<blDataType>& rawIterator){return std::distance(rawIterator.getPtr(),this->getPtr());}
blDataType& operator*(){return *m_ptr;}
const blDataType& operator*()const{return *m_ptr;}
blDataType* operator->(){return m_ptr;}
blDataType* getPtr()const{return m_ptr;}
const blDataType* getConstPtr()const{return m_ptr;}
protected:
blDataType* m_ptr;
};
//-------------------------------------------------------------------
//-------------------------------------------------------------------
// Raw reverse iterator with random access
//-------------------------------------------------------------------
template<typename blDataType>
class blRawReverseIterator : public blRawIterator<blDataType>
{
public:
blRawReverseIterator(blDataType* ptr = nullptr):blRawIterator<blDataType>(ptr){}
blRawReverseIterator(const blRawIterator<blDataType>& rawIterator){this->m_ptr = rawIterator.getPtr();}
blRawReverseIterator(const blRawReverseIterator<blDataType>& rawReverseIterator) = default;
~blRawReverseIterator(){}
blRawReverseIterator<blDataType>& operator=(const blRawReverseIterator<blDataType>& rawReverseIterator) = default;
blRawReverseIterator<blDataType>& operator=(const blRawIterator<blDataType>& rawIterator){this->m_ptr = rawIterator.getPtr();return (*this);}
blRawReverseIterator<blDataType>& operator=(blDataType* ptr){this->setPtr(ptr);return (*this);}
blRawReverseIterator<blDataType>& operator+=(const difference_type& movement){this->m_ptr -= movement;return (*this);}
blRawReverseIterator<blDataType>& operator-=(const difference_type& movement){this->m_ptr += movement;return (*this);}
blRawReverseIterator<blDataType>& operator++(){--this->m_ptr;return (*this);}
blRawReverseIterator<blDataType>& operator--(){++this->m_ptr;return (*this);}
blRawReverseIterator<blDataType> operator++(int){auto temp(*this);--this->m_ptr;return temp;}
blRawReverseIterator<blDataType> operator--(int){auto temp(*this);++this->m_ptr;return temp;}
blRawReverseIterator<blDataType> operator+(const int& movement){auto oldPtr = this->m_ptr;this->m_ptr-=movement;auto temp(*this);this->m_ptr = oldPtr;return temp;}
blRawReverseIterator<blDataType> operator-(const int& movement){auto oldPtr = this->m_ptr;this->m_ptr+=movement;auto temp(*this);this->m_ptr = oldPtr;return temp;}
difference_type operator-(const blRawReverseIterator<blDataType>& rawReverseIterator){return std::distance(this->getPtr(),rawReverseIterator.getPtr());}
blRawIterator<blDataType> base(){blRawIterator<blDataType> forwardIterator(this->m_ptr); ++forwardIterator; return forwardIterator;}
};
//-------------------------------------------------------------------
Now somewhere in your custom container class:
template<typename blDataType>
class blCustomContainer
{
public: // The typedefs
typedef blRawIterator<blDataType> iterator;
typedef blRawIterator<const blDataType> const_iterator;
typedef blRawReverseIterator<blDataType> reverse_iterator;
typedef blRawReverseIterator<const blDataType> const_reverse_iterator;
.
.
.
public: // The begin/end functions
iterator begin(){return iterator(&m_data[0]);}
iterator end(){return iterator(&m_data[m_size]);}
const_iterator cbegin(){return const_iterator(&m_data[0]);}
const_iterator cend(){return const_iterator(&m_data[m_size]);}
reverse_iterator rbegin(){return reverse_iterator(&m_data[m_size - 1]);}
reverse_iterator rend(){return reverse_iterator(&m_data[-1]);}
const_reverse_iterator crbegin(){return const_reverse_iterator(&m_data[m_size - 1]);}
const_reverse_iterator crend(){return const_reverse_iterator(&m_data[-1]);}
.
.
.
// This is the pointer to the
// beginning of the data
// This allows the container
// to either "view" data owned
// by other containers or to
// own its own data
// You would implement a "create"
// method for owning the data
// and a "wrap" method for viewing
// data owned by other containers
blDataType* m_data;
};
The typical answer to this question, unfortunately posted here already, is that one does the increment "before" remaining operations and the other does the increment "after" remaining operations. Though that intuitively gets the idea across, that statement is on the face of it completely wrong. The sequence of events in time is extremely well-defined in C#, and it is emphatically not the case that the prefix (++var) and postfix (var++) versions of ++ do things in a different order with respect to other operations.
It is unsurprising that you'll see a lot of wrong answers to this question. A great many "teach yourself C#" books also get it wrong. Also, the way C# does it is different than how C does it. Many people reason as though C# and C are the same language; they are not. The design of the increment and decrement operators in C# in my opinion avoids the design flaws of these operators in C.
There are two questions that must be answered to determine what exactly the operation of prefix and postfix ++ are in C#. The first question is what is the result? and the second question is when does the side effect of the increment take place?
It is not obvious what the answer to either question is, but it is actually quite simple once you see it. Let me spell out for you precisely what x++ and ++x do for a variable x.
For the prefix form (++x):
For the postfix form (x++):
Some things to notice:
First, the order of events in time is exactly the same in both cases. Again, it is absolutely not the case that the order of events in time changes between prefix and postfix. It is entirely false to say that the evaluation happens before other evaluations or after other evaluations. The evaluations happen in exactly the same order in both cases as you can see by steps 1 through 4 being identical. The only difference is the last step - whether the result is the value of the temporary, or the new, incremented value.
You can easily demonstrate this with a simple C# console app:
public class Application
{
public static int currentValue = 0;
public static void Main()
{
Console.WriteLine("Test 1: ++x");
(++currentValue).TestMethod();
Console.WriteLine("\nTest 2: x++");
(currentValue++).TestMethod();
Console.WriteLine("\nTest 3: ++x");
(++currentValue).TestMethod();
Console.ReadKey();
}
}
public static class ExtensionMethods
{
public static void TestMethod(this int passedInValue)
{
Console.WriteLine("Current:{0} Passed-in:{1}",
Application.currentValue,
passedInValue);
}
}
Here are the results...
Test 1: ++x
Current:1 Passed-in:1
Test 2: x++
Current:2 Passed-in:1
Test 3: ++x
Current:3 Passed-in:3
In the first test, you can see that both currentValue
and what was passed in to the TestMethod()
extension show the same value, as expected.
However, in the second case, people will try to tell you that the increment of currentValue
happens after the call to TestMethod()
, but as you can see from the results, it happens before the call as indicated by the 'Current:2' result.
In this case, first the value of currentValue
is stored in a temporary. Next, an incremented version of that value is stored back in currentValue
but without touching the temporary which still stores the original value. Finally that temporary is passed to TestMethod()
. If the increment happened after the call to TestMethod()
then it would write out the same, non-incremented value twice, but it does not.
It's important to note that the value returned from both the
currentValue++
and++currentValue
operations are based on the temporary and not the actual value stored in the variable at the time either operation exits.Recall in the order of operations above, the first two steps copy the then-current value of the variable into the temporary. That is what's used to calculate the return value; in the case of the prefix version, it's that temporary value incremented while in the case of the suffix version, it's that value directly/non-incremented. The variable itself is not read again after the initial storage into the temporary.
Put more simply, the postfix version returns the value that was read from the variable (i.e. the value of the temporary) while the prefix version returns the value that was written back to the variable (i.e. the incremented value of the temporary). Neither return the variable's value.
This is important to understand because the variable itself could be volatile and have changed on another thread which means the return value of those operations could differ from the current value stored in the variable.
It is surprisingly common for people to get very confused about precedence, associativity, and the order in which side effects are executed, I suspect mostly because it is so confusing in C. C# has been carefully designed to be less confusing in all these regards. For some additional analysis of these issues, including me further demonstrating the falsity of the idea that prefix and postfix operations "move stuff around in time" see:
https://ericlippert.com/2009/08/10/precedence-vs-order-redux/
which led to this SO question:
int[] arr={0}; int value = arr[arr[0]++]; Value = 1?
You might also be interested in my previous articles on the subject:
https://ericlippert.com/2008/05/23/precedence-vs-associativity-vs-order/
and
https://ericlippert.com/2007/08/14/c-and-the-pit-of-despair/
and an interesting case where C makes it hard to reason about correctness:
https://docs.microsoft.com/archive/blogs/ericlippert/bad-recursion-revisited
Also, we run into similar subtle issues when considering other operations that have side effects, such as chained simple assignments:
https://docs.microsoft.com/archive/blogs/ericlippert/chaining-simple-assignments-is-not-so-simple
And here's an interesting post on why the increment operators result in values in C# rather than in variables:
Answer from @srfrnk works for me.
In my situation, I had the next docker-compose.yml file:
nginx:
build:
context: ./
dockerfile: "./docker/nginx.staging/Dockerfile"
depends_on:
- scripts
environment:
NGINX_SERVER_NAME: "some.host"
NGINX_STATIC_CONTENT_OPEN_FILE_CACHE: "off"
NGINX_ERROR_LOG_LEVEL: debug
NGINX_BACKEND_HOST: scripts
NGINX_SERVER_ROOT: /var/www/html
volumes:
- ./docker-runtime/drupal/files:/var/www/html/sites/default/files:rw
ports:
- 80:80
./docker-runtime
owner and group - is root
when the other files owner - my user.
When I tried to build nginx
Couldn't connect to Docker daemon at http+docker://localunixsocket - is it running?
I added ./docker-runtime
to .dockerignore
and it is solved my problem.
This exception can be solved by specifying a full class path.
Example:
If you are using a class named ExceptionDetails
Wrong Way of passing arguments
JAXBContext jaxbContext = JAXBContext.newInstance(ExceptionDetails.class);
Right Way of passing arguments
JAXBContext jaxbContext = JAXBContext.newInstance(com.tibco.schemas.exception.ExceptionDetails.class);
I am going to assume you were having the same issue I was. Even though you specify larger sizes for the TextBox and mark it as important, the box would not get larger. That is likely because in your site.css file the MaxWidth is being set to 280px.
Add a style attribute to your input to remove the MaxWidth like this:
<input type="text" style="max-width:none !important" class="input-medium">
Nice one-line solution:
function truncate (num, places) {
return Math.trunc(num * Math.pow(10, places)) / Math.pow(10, places);
}
Then call it with:
truncate(3.5636232, 2); // returns 3.56
truncate(5.4332312, 3); // returns 5.433
truncate(25.463214, 4); // returns 25.4632
public string GetCreditCardType(string CreditCardNumber)
{
Regex regVisa = new Regex("^4[0-9]{12}(?:[0-9]{3})?$");
Regex regMaster = new Regex("^5[1-5][0-9]{14}$");
Regex regExpress = new Regex("^3[47][0-9]{13}$");
Regex regDiners = new Regex("^3(?:0[0-5]|[68][0-9])[0-9]{11}$");
Regex regDiscover = new Regex("^6(?:011|5[0-9]{2})[0-9]{12}$");
Regex regJCB = new Regex("^(?:2131|1800|35\\d{3})\\d{11}$");
if (regVisa.IsMatch(CreditCardNumber))
return "VISA";
else if (regMaster.IsMatch(CreditCardNumber))
return "MASTER";
else if (regExpress.IsMatch(CreditCardNumber))
return "AEXPRESS";
else if (regDiners.IsMatch(CreditCardNumber))
return "DINERS";
else if (regDiscover.IsMatch(CreditCardNumber))
return "DISCOVERS";
else if (regJCB.IsMatch(CreditCardNumber))
return "JCB";
else
return "invalid";
}
Here is the function to check Credit card type using Regex , c#
Have you tried:
SELECT Cast( 2.555 as decimal(53,8))
This would return 2.55500000
. Is that what you want?
UPDATE:
Apparently you can also use SQL_VARIANT_PROPERTY to find the precision and scale of a value. Example:
SELECT SQL_VARIANT_PROPERTY(Cast( 2.555 as decimal(8,7)),'Precision'),
SQL_VARIANT_PROPERTY(Cast( 2.555 as decimal(8,7)),'Scale')
returns 8|7
You may be able to use this in your conversion process...
If you want to easily view the contents of objects while debugging, install a tool like Firebug and use console.log
:
console.log(product);
If you want to view the properties of the object itself, don't alert
the object, but its properties:
alert(product.ProductName);
alert(product.UnitPrice);
// etc... (or combine them)
As said, if you really want to boost your JavaScript debugging, use Firefox with the Firebug addon. You will wonder how you ever debugged your code before.
In java, the objects are spawned on heap memory. These require reference to be pointed and used in our application. The reference has the memory location of the object with which we can use the objects in our application. A reference in short is nothing but a name of the variable which stores the address of the object instantiated on a memory location.
An instance
is a general term for object
. FYI, Object
is a class.
For Example,
Class A{
}
A ref = new A();
For the above code snippet, ref is the reference for an object of class A generated on heap.
Theres a few ways you can do this. You can either add a background to the canvas you are currently working on, which if the canvas isn't going to be redrawn every loop is fine. Otherwise you can make a second canvas underneath your main canvas and draw the background to it. The final way is to just use a standard <img>
element placed under the canvas. To draw a background onto the canvas element you can do something like the following:
var canvas = document.getElementById("canvas"),
ctx = canvas.getContext("2d");
canvas.width = 903;
canvas.height = 657;
var background = new Image();
background.src = "http://www.samskirrow.com/background.png";
// Make sure the image is loaded first otherwise nothing will draw.
background.onload = function(){
ctx.drawImage(background,0,0);
}
// Draw whatever else over top of it on the canvas.
You should do ex.StackTrace instead of ex.ToString()
Here's a clear picture:
Assuming we have branch-A and branch-B
We want to merge branch-B into branch-A
on branch-B -> A: switch to branch-A
on branch-A: git merge branch-B
I have a workaround using jquery... although we cannot style a particular option, we can style the select itself - and use javascript to change the class of the select based on what is selected. It works sufficiently for simple cases.
$('select.potentially_red').on('change', function() {_x000D_
if ($(this).val()=='red') {_x000D_
$(this).addClass('option_red');_x000D_
} else {_x000D_
$(this).removeClass('option_red');_x000D_
}_x000D_
});_x000D_
$('select.potentially_red').each( function() {_x000D_
if ($(this).val()=='red') {_x000D_
$(this).addClass('option_red');_x000D_
} else {_x000D_
$(this).removeClass('option_red');_x000D_
}_x000D_
});
_x000D_
.option_red {_x000D_
background-color: #cc0000; _x000D_
font-weight: bold; _x000D_
font-size: 12px; _x000D_
color: white;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>_x000D_
<!-- The js will affect all selects which have the class 'potentially_red' -->_x000D_
<select name="color" class="potentially_red">_x000D_
<option value="red">Red</option>_x000D_
<option value="white">White</option>_x000D_
<option value="blue">Blue</option>_x000D_
<option value="green">Green</option>_x000D_
</select>
_x000D_
Note that the js is in two parts, the each
part for initializing everything on the page correctly, the .on('change', ...
part for responding to change. I was unable to mangle the js into a function to DRY it up, it breaks it for some reason
Based on this SO question :
grep -rIl "needle text" my_folder
Sometimes a binder throwns an exception with no error message. You can retrieve the exception with the following snippet to find out whats wrong:
(Often if the binder is trying to convert strings to complex types etc)
if (!ModelState.IsValid)
{
var errors = ModelState.SelectMany(x => x.Value.Errors.Select(z => z.Exception));
// Breakpoint, Log or examine the list with Exceptions.
}
Sometimes you may need to plot color precisely based on the x-value case. For example, you may have a dataframe with 3 types of variables and some data points. And you want to do following,
In this case, you may have to write to short function to map the x-values to corresponding color names as a list and then pass on that list to the plt.scatter
command.
x=['A','B','B','C','A','B']
y=[15,30,25,18,22,13]
# Function to map the colors as a list from the input list of x variables
def pltcolor(lst):
cols=[]
for l in lst:
if l=='A':
cols.append('red')
elif l=='B':
cols.append('blue')
else:
cols.append('green')
return cols
# Create the colors list using the function above
cols=pltcolor(x)
plt.scatter(x=x,y=y,s=500,c=cols) #Pass on the list created by the function here
plt.grid(True)
plt.show()
My favorite approach, without external libraries:
try {
URI uri = new URI(name);
// perform checks for scheme, authority, host, etc., based on your requirements
if ("mailto".equals(uri.getScheme()) {/*Code*/}
if (uri.getHost() == null) {/*Code*/}
} catch (URISyntaxException e) {
}
Found another solution for the same. It will be more helpful.
START C:\"Program Files (x86)"\Test\"Test Automation"\finger.exe ConfigFile="C:\Users\PCName\Desktop\Automation\Documents\Validation_ZoneWise_Default.finger.Config"
finger.exe is a parent program that is calling config solution. Note: if your path folder name consists of spaces, then do not forget to add "".
i do it like this cover button and the middle image that
<button><img src="foldername/imagename" width="30px" height= "30px"></button>
Here's a guided approach.
Your authentication service issues a JWT token that is signed using a secret that is also available in your API service. The reason they need to be there too is that you will need to verify the tokens received to make sure you created them. The nice thing about JWTs is that their payload can hold claims as to what the user is authorised to access should different users have different access control levels.
That architecture renders authentication stateless: No need to store any tokens in a database unless you would like to handle token blacklisting (think banning users). Being stateless is crucial if you ever need to scale. That also frees up your API service from having to call the authentication server at all as the information they need for both authentication and authorisation are in the issued token.
Flow (no refresh tokens):
There are a couple of issues here. Namely, that auth token in the wrong hands provides unlimited access to a malicious user to pretend they are the affected user and call your APIs indefinitely. To handle that, tokens have an expiry date and clients are forced to request new tokens whenever expiry happens. That expiry is part of the token's payload. But if tokens are short-lived, do we require users to authenticate with their usernames and password every time? No. We do not want to ask a user for their password every 30min to an hour, and we do not want to persist that password anywhere in the client. To get around that issue, we introduce the concept of refresh tokens. They are longer lived tokens that serve one purpose: act as a user's password, authenticate them to get a new token. Downside is that with this architecture your authentication server needs to persist these refresh token in a database.
New flow (with refresh tokens):
OPTIONAL (banning users)
How do we ban users? Using that model there is no easy way to do so. Enhancement: Every persisted refresh token includes a blacklisted field and only issue new tokens if the refresh token isn't black listed.
Things to consider:
Since 0.14.1, you can now do nlargest
and nsmallest
on a groupby
object:
In [23]: df.groupby('id')['value'].nlargest(2)
Out[23]:
id
1 2 3
1 2
2 6 4
5 3
3 7 1
4 8 1
dtype: int64
There's a slight weirdness that you get the original index in there as well, but this might be really useful depending on what your original index was.
If you're not interested in it, you can do .reset_index(level=1, drop=True)
to get rid of it altogether.
(Note: From 0.17.1 you'll be able to do this on a DataFrameGroupBy too but for now it only works with Series
and SeriesGroupBy
.)
This is one of the fundamentals of both languages that pointers evaluate to a type and value that can be used as a control expression, bool
in C++ and int
in C. Just use it.
ShortcutBadger is a library that adds an abstraction layer over the device brand and current launcher and offers a great result. Works with LG, Sony, Samsung, HTC and other custom Launchers.
It even has a way to display Badge Count in Pure Android devices desktop.
Updating the Badge Count in the application icon is as easy as calling:
int badgeCount = 1;
ShortcutBadger.applyCount(context, badgeCount);
It includes a demo application that allows you to test its behavior.
I combined @richelectron and @user1433454 answers.
It works very well and preserves the text formatting.
<pre style="white-space: pre-wrap; word-break: keep-all;">
</pre>
There is a library that provides a better ProcessBuilder, zt-exec. This library can do exactly what you are asking for and more.
Here's what your code would look like with zt-exec instead of ProcessBuilder :
add the dependency :
<dependency>
<groupId>org.zeroturnaround</groupId>
<artifactId>zt-exec</artifactId>
<version>1.11</version>
</dependency>
The code :
new ProcessExecutor()
.command("somecommand", "arg1", "arg2")
.redirectOutput(System.out)
.redirectError(System.err)
.execute();
Documentation of the library is here : https://github.com/zeroturnaround/zt-exec/
Lookarounds can be nested.
So this regex matches "drupal-6.14/" that is not followed by "sites" that is not followed by "/all" or "/default".
Confusing? Using different words, we can say it matches "drupal-6.14/" that is not followed by "sites" unless that is further followed by "/all" or "/default"
This makes the window take up the full screen for me, under Ubuntu 12.04 with the TkAgg backend:
mng = plt.get_current_fig_manager()
mng.resize(*mng.window.maxsize())
At least for pip 1.3.1, it honors the http_proxy and https_proxy environment variables. Make sure you define both, as it will access the PYPI index using https.
export https_proxy="http://<proxy.server>:<port>"
pip install TwitterApi
I know the topic was asked some time ago, but recently I had faced similar issue and found yet another, but in my opinion a more complete solution. I decided to implement mechanism which provides conditional attributes to calculate validation results based on other properties values and relations between them, which are defined in logical expressions.
Using it you are able to achieve the result you asked about in the following manner:
[RequiredIf("MyProperty2 == null && MyProperty3 == false")]
public string MyProperty1 { get; set; }
[RequiredIf("MyProperty1 == null && MyProperty3 == false")]
public string MyProperty2 { get; set; }
[AssertThat("MyProperty1 != null || MyProperty2 != null || MyProperty3 == true")]
public bool MyProperty3 { get; set; }
More information about ExpressiveAnnotations library can be found here. It should simplify many declarative validation cases without the necessity of writing additional case-specific attributes or using imperative way of validation inside controllers.
If SQL Server is running and you still get an error; When SQL Server is opened, instead of the default server name which is displayed you should select the server name ending with \SQLEXPRESS under the Server name-> Browse for more-> Database engine option.
I find this image very meaningful :
(from : Oliver Steele -My Git Workflow (2008) )
If you want an actual boolean column:
ALTER TABLE users ADD "priv_user" boolean DEFAULT false;
Change the submit button to a normal button and handle submitting in its onClick event.
As far as I know, there is no way to tell if the form was submitted by Enter Key or the submit button.
I think that for some reason GitHub is expecting the URL to NOT have subdomain www. When I use (for example)
git remote set-url origin https://www.github.com/name/repo.git
it gives the following messages:
remote: Anonymous access to name/repo.git denied
fatal: Authentication failed for https://www.github.com/name/repo.git
However, if I use
git remote set-url origin https://github.com/name/repo.git
it works perfectly fine. Doesn't make too much sense to me... but I guess remember not to put www in the remote URL for GitHub repositories.
Also notice the clone URLs provided on the GitHub repository webpage doesn't include the www.
Unless things have changed, you're better off with
public static ByteBuffer str_to_bb(String msg, Charset charset){
return ByteBuffer.wrap(msg.getBytes(charset));
}
public static String bb_to_str(ByteBuffer buffer, Charset charset){
byte[] bytes;
if(buffer.hasArray()) {
bytes = buffer.array();
} else {
bytes = new byte[buffer.remaining()];
buffer.get(bytes);
}
return new String(bytes, charset);
}
Usually buffer.hasArray() will be either always true or always false depending on your use case. In practice, unless you really want it to work under any circumstances, it's safe to optimize away the branch you don't need.
Rendering happens after change detection. To force change detection, so that component property values that have changed get propagated to the DOM (and then the browser will render those changes in the view), here are some options:
$rootScope.$digest()
-- i.e., check the full component tree$rootScope.$apply(callback)
-- i.e., evaluate the callback function inside the Angular 2 zone. I think, but I'm not sure, that this ends up checking the full component tree after executing the callback function.$scope.$digest()
-- i.e., check only this component and its childrenYou will need to import and then inject ApplicationRef
, NgZone
, or ChangeDetectorRef
into your component.
For your particular scenario, I would recommend the last option if only a single component has changed.
$str = trim(preg_replace('/\s+/',' ', $str));
The above line of code will remove extra spaces, as well as leading and trailing spaces.
First, what you are looking for is a column or bar diagram, not really a histogram. A histogram is made from a frequency distribution of a continuous variable that is separated into bins. Here you have a column against separate labels.
To make a bar diagram with matplotlib, use the matplotlib.pyplot.bar()
method. Have a look at this page of the matplotlib documentation that explains very well with examples and source code how to do it.
If it is possible though, I would just suggest that for a simple task like this if you could avoid writing code that would be better. If you have any spreadsheet program this should be a piece of cake because that's exactly what they are for, and you won't have to 'reinvent the wheel'. The following is the plot of your data in Excel:
I just copied your data from the question, used the text import wizard to put it in two columns, then I inserted a column diagram.
For those who don't want to use HTML agility pack and want to get HtmlDocument from string using native .net code only here is a good article on how to convert string to HtmlDocument
Here is the code block to use
public System.Windows.Forms.HtmlDocument GetHtmlDocument(string html)
{
WebBrowser browser = new WebBrowser();
browser.ScriptErrorsSuppressed = true;
browser.DocumentText = html;
browser.Document.OpenNew(true);
browser.Document.Write(html);
browser.Refresh();
return browser.Document;
}
I was attempting to find strings with numbers ONLY, no punctuation or anything else. I finally found an answer that would work here.
Using PATINDEX('%[^0-9]%', some_column) = 0 allowed me to filter out everything but actual number strings.
Also relevant to the discussion is the relatively unknown Erl
function. If you have numeric labels within your code procedure, e.g.,
Sub AAA()
On Error Goto ErrorHandler
1000:
' code
1100:
' more code
1200:
' even more code that causes an error
1300:
' yet more code
9999: ' end of main part of procedure
ErrorHandler:
If Err.Number <> 0 Then
Debug.Print "Error: " + CStr(Err.Number), Err.Descrption, _
"Last Successful Line: " + CStr(Erl)
End If
End Sub
The Erl
function returns the most recently encountered numberic line label. In the example above, if a run-time error occurs after label 1200:
but before 1300:
, the Erl
function will return 1200
, since that is most recenlty sucessfully encountered line label. I find it to be a good practice to put a line label immediately above your error handling block. I typcially use 9999
to indicate that the main part of the procuedure ran to its expected conculsion.
NOTES:
Line labels MUST be positive integers -- a label like MadeItHere:
isn't recogonized by Erl
.
Line labels are completely unrelated to the actual line numbers of a VBIDE CodeModule
. You can use any positive numbers you want, in any order you want. In the example above, there are only 25 or so lines of code, but the line label numbers begin at 1000
. There is no relationship between editor line numbers and line label numbers used with Erl
.
Line label numbers need not be in any particular order, although if they are not in ascending, top-down order, the efficacy and benefit of Erl
is greatly diminished, but Erl
will still report the correct number.
Line labels are specific to the procedure in which they appear. If procedure ProcA
calls procedure ProcB
and an error occurs in ProcB
that passes control back to ProcA
, Erl
(in ProcA
) will return the most recently encounterd line label number in ProcA
before it calls ProcB
. From within ProcA
, you cannot get the line label numbers that might appear in ProcB
.
Use care when putting line number labels within a loop. For example,
For X = 1 To 100
500:
' some code that causes an error
600:
Next X
If the code following line label 500
but before 600
causes an error, and that error arises on the 20th iteration of the loop, Erl
will return 500
, even though 600
has been encounterd successfully in the previous 19 interations of the loop.
Proper placement of line labels within the procedure is critical to using the Erl
function to get truly meaningful information.
There are any number of free utilies on the net that will insert numeric line label in a procedure automatically, so you have fine-grained error information while developing and debugging, and then remove those labels once code goes live.
If your code displays error information to the end user if an unexpected error occurs, providing the value from Erl
in that information can make finding and fixing the problem VASTLY simpler than if value of Erl
is not reported.
In my case i had to execute a command to drop all connections including my active administrator connection
SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity
WHERE datname = current_database()
which terminated all connections and show me a fatal ''error'' message :
FATAL: terminating connection due to administrator command SQL state: 57P01
After that it was possible to drop the database
Keep'em short: Optimizing Storage of Small Objects, SERVER-863. Silly but true.
I guess pretty much the same rules that apply to relation databases should apply here. And after so many decades there is still no agreement whether RDBMS tables should be named singular or plural...
MongoDB speaks JavaScript, so utilize JS naming conventions of camelCase.
MongoDB official documentation mentions you may use underscores, also built-in identifier is named _id
(but this may be be to indicate that _id
is intended to be private, internal, never displayed or edited.
$('.UPDATE').click(function(){ }); **V/S**
$(document).on('click','.UPDATE',function(){ });
$(document).on('click','.UPDATE',function(){ });
$(document).on('click','.UPDATE',function(){ });
is effectively work like same fetched data by using jquery. button not working at time of update or delete:I had a similar issue to this and clearing Temporary ASP.NET Files fixed it. Hope this helps someone.
In javascript there are no block-level scopes
only function-level scopes
:
Read this article about javaScript Scoping and Hoisting.
var deferred = $q.defer();
deferred.count = i;
console.log(deferred.count); // 0,1,2,3,4,5 --< all deferred objects
// some code
.success(function(data){
console.log(deferred.count); // 5,5,5,5,5,5 --< only the last deferred object
deferred.resolve(data);
})
var deferred= $q.defer();
inside a for loop it's hoisted to the top of the function, it means that javascript declares this variable on the function scope outside of the for loop
.closure scope
even after functions are executed.angular.forEach
:Here is a demo plunker: http://plnkr.co/edit/NGMp4ycmaCqVOmgohN53?p=preview
UploadService.uploadQuestion = function(questions){
var promises = [];
angular.forEach(questions , function(question) {
var promise = $http({
url : 'upload/question',
method: 'POST',
data : question
});
promises.push(promise);
});
return $q.all(promises);
}
Array#map
:Here is a demo plunker: http://plnkr.co/edit/KYeTWUyxJR4mlU77svw9?p=preview
UploadService.uploadQuestion = function(questions){
var promises = questions.map(function(question) {
return $http({
url : 'upload/question',
method: 'POST',
data : question
});
});
return $q.all(promises);
}
For me worked: Right click on project > Properties > Project Faces > change Configuration from "custom" to "Default configuration for Apache Tomcat v7.0" > OK and then Run on Server option has appeared.
It is because it did not find sql connector. try:
pip install mysqlclient
Since this is a top hit on Google, I'd like to give an updated answer.
Using ES6 classes makes inheritance and method overriding a lot easier:
'use strict';
class A {
speak() {
console.log("I'm A");
}
}
class B extends A {
speak() {
super.speak();
console.log("I'm B");
}
}
var a = new A();
a.speak();
// Output:
// I'm A
var b = new B();
b.speak();
// Output:
// I'm A
// I'm B
The super
keyword refers to the parent class when used in the inheriting class. Also, all methods on the parent class are bound to the instance of the child, so you don't have to write super.method.apply(this);
.
As for compatibility: the ES6 compatibility table shows only the most recent versions of the major players support classes (mostly). V8 browsers have had them since January of this year (Chrome and Opera), and Firefox, using the SpiderMonkey JS engine, will see classes next month with their official Firefox 45 release. On the mobile side, Android still does not support this feature, while iOS 9, release five months ago, has partial support.
Fortunately, there is Babel, a JS library for re-compiling Harmony code into ES5 code. Classes, and a lot of other cool features in ES6 can make your Javascript code a lot more readable and maintainable.
var values = new [] {"abc", "def", "ghj"};
var str = "abcedasdkljre";
values.Any(str.Contains);
x.each_with_index { |v, i| puts "current index...#{i}" }
Just to make a more comprehensive answer, the C way of iterating over a string can apply in Python, if you really wanna force a square peg into a round hole.
i = 0
while i < len(str):
print str[i]
i += 1
But then again, why do that when strings are inherently iterable?
for i in str:
print i
May be this is alltime multiple connection open issue, you are somewhere in your code opening connections and not closing them properly. use
using (SqlConnection con = new SqlConnection(connectionString))
{
con.Open();
}
Refer this article: http://msdn.microsoft.com/en-us/library/ms254507(v=vs.80).aspx, The Using block in Visual Basic or C# automatically disposes of the connection when the code exits the block, even in the case of an unhandled exception.
If i understand that you want all rows in the year 2010, then:
select *
from mytable
where Columnx >= '2010-01-01 00:00:00'
and Columnx < '2011-01-01 00:00:00'
This will help for sure -
arr=['a','b','h','i'] # let this be the list
s="" # creating a empty string
for i in arr:
s+=i # to form string without using any function
print(s)
To add on to chepner's answer for Python 3.0 you can alternatively do:
x = lambda x: list(map(print, x))
Of course this is only if you have the means of using Python > 3 in the future... Looks a bit cleaner in my opinion, but it also has a weird return value, but you're probably discarding it anyway.
I'll just leave this here for reference.
.NET 4 has two new properties in the Environment class, Is64BitProcess and Is64BitOperatingSystem. Interestingly, if you use Reflector you can see they are implemented differently in the 32-bit & 64-bit versions of mscorlib. The 32-bit version returns false for Is64BitProcess and calls IsWow64Process via P/Invoke for Is64BitOperatingSystem. The 64-bit version just returns true for both.
RFC 3066 gives the details of the allowed values (emphasis and links added):
All 2-letter subtags are interpreted as ISO 3166 alpha-2 country codes from [ISO 3166], or subsequently assigned by the ISO 3166 maintenance agency or governing standardization bodies, denoting the area to which this language variant relates.
I interpret that as meaning any valid (according to ISO 3166) 2-letter code is valid as a subtag. The RFC goes on to state:
Tags with second subtags of 3 to 8 letters may be registered with IANA, according to the rules in chapter 5 of this document.
By the way, that looks like a typo, since chapter 3 seems to relate to the the registration process, not chapter 5.
A quick search for the IANA registry reveals a very long list, of all the available language subtags. Here's one example from the list (which would be used as en-scouse
):
Type: variant
Subtag: scouse
Description: Scouse
Added: 2006-09-18
Prefix: en
Comments: English Liverpudlian dialect known as 'Scouse'
There are all sorts of subtags available; a quick scroll has already revealed fr-1694acad
(17th century French).
The usefulness of some of these (I would say the vast majority of these) tags, when it comes to documents designed for display in the browser, is limited. The W3C Internationalization specification simply states:
Browsers and other applications can use information about the language of content to deliver to users the most appropriate information, or to present information to users in the most appropriate way. The more content is tagged and tagged correctly, the more useful and pervasive such applications will become.
I'm struggling to find detailed information on how browsers behave when encountering different language tags, but they are most likely going to offer some benefit to those users who use a screen reader, which can use the tag to determine the language/dialect/accent in which to present the content.
No, you can't break from a closure in Groovy without throwing an exception. Also, you shouldn't use exceptions for control flow.
If you find yourself wanting to break out of a closure you should probably first think about why you want to do this and not how to do it. The first thing to consider could be the substitution of the closure in question with one of Groovy's (conceptual) higher order functions. The following example:
for ( i in 1..10) { if (i < 5) println i; else return}
becomes
(1..10).each{if (it < 5) println it}
becomes
(1..10).findAll{it < 5}.each{println it}
which also helps clarity. It states the intent of your code much better.
The potential drawback in the shown examples is that iteration only stops early in the first example. If you have performance considerations you might want to stop it right then and there.
However, for most use cases that involve iterations you can usually resort to one of Groovy's find, grep, collect, inject, etc. methods. They usually take some "configuration" and then "know" how to do the iteration for you, so that you can actually avoid imperative looping wherever possible.
This is because of ng-include
which creates a new child scope, so $scope.lineText
isn’t changed. I think that this
refers to the current scope, so this.lineText
should be set.
The reason you are getting the the IOException is because you are not catching the IOException of your countLines method. You'll want to do something like this:
public static void main(String[] args) {
int lines = 0;
// TODO - Need to get the filename to populate sFileName. Could
// come from the command line arguments.
try {
lines = LineCounter.countLines(sFileName);
}
catch(IOException ex){
System.out.println (ex.toString());
System.out.println("Could not find file " + sFileName);
}
if(lines > 0) {
// Do rest of program.
}
}
When dealing with a hash {}
, use both the key and value to the block inside the ||
.
details.map {|key,item|"" == item}
=>[false, false, true, false, false]
The answers to these questions vary depending on whether you are using a stream socket (SOCK_STREAM
) or a datagram socket (SOCK_DGRAM
) - within TCP/IP, the former corresponds to TCP and the latter to UDP.
How do you know how big to make the buffer passed to recv()
?
SOCK_STREAM
: It doesn't really matter too much. If your protocol is a transactional / interactive one just pick a size that can hold the largest individual message / command you would reasonably expect (3000 is likely fine). If your protocol is transferring bulk data, then larger buffers can be more efficient - a good rule of thumb is around the same as the kernel receive buffer size of the socket (often something around 256kB).
SOCK_DGRAM
: Use a buffer large enough to hold the biggest packet that your application-level protocol ever sends. If you're using UDP, then in general your application-level protocol shouldn't be sending packets larger than about 1400 bytes, because they'll certainly need to be fragmented and reassembled.
What happens if recv
gets a packet larger than the buffer?
SOCK_STREAM
: The question doesn't really make sense as put, because stream sockets don't have a concept of packets - they're just a continuous stream of bytes. If there's more bytes available to read than your buffer has room for, then they'll be queued by the OS and available for your next call to recv
.
SOCK_DGRAM
: The excess bytes are discarded.
How can I know if I have received the entire message?
SOCK_STREAM
: You need to build some way of determining the end-of-message into your application-level protocol. Commonly this is either a length prefix (starting each message with the length of the message) or an end-of-message delimiter (which might just be a newline in a text-based protocol, for example). A third, lesser-used, option is to mandate a fixed size for each message. Combinations of these options are also possible - for example, a fixed-size header that includes a length value.
SOCK_DGRAM
: An single recv
call always returns a single datagram.
Is there a way I can make a buffer not have a fixed amount of space, so that I can keep adding to it without fear of running out of space?
No. However, you can try to resize the buffer using realloc()
(if it was originally allocated with malloc()
or calloc()
, that is).
I was searching all over the web for this problem. I had the wrong name in the connection string, please check you connection string in web.config. I had name="AppTest"
but it should have been name="App"
.
In my AppTestContext.cs file I had:
public AppTestContext() : this("App") { }
Wrong connection string:
<add connectionString="Data Source=127.0.0.1;Initial Catalog=AppTest;Integrated Security=SSPI;MultipleActiveResultSets=True" name="AppTest" providerName="System.Data.SqlClient" />
Right connection string:
<add connectionString="Data Source=127.0.0.1;Initial Catalog=AppTest;Integrated Security=SSPI;MultipleActiveResultSets=True" name="App" providerName="System.Data.SqlClient" />
That should work if the dates you saved in the DB are without time (just year, month, day).
Chances are that the dates you saved were new Date()
, which includes the time components. To query those times you need to create a date range that includes all moments in a day.
db.posts.find({ //query today up to tonight
created_on: {
$gte: new Date(2012, 7, 14),
$lt: new Date(2012, 7, 15)
}
})
Try this After open web.config file in application and add sample db connection in connectionStrings section like this
<connectionStrings>
<add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System.Data.SqlClient"/>
</connectionStrings >
In the accepted answer
public Node(T data, Node<T> parent) {
this.data = data;
this.parent = parent;
}
should be
public Node(T data, Node<T> parent) {
this.data = data;
this.setParent(parent);
}
otherwise the parent does not have the child in its children list
A simple and quick solution that works for me is:
@IBDesignable
class PlaceHolderTextView: UITextView {
@IBInspectable var placeholder: String = "" {
didSet{
updatePlaceHolder()
}
}
@IBInspectable var placeholderColor: UIColor = UIColor.gray {
didSet {
updatePlaceHolder()
}
}
private var originalTextColor = UIColor.darkText
private var originalText: String = ""
private func updatePlaceHolder() {
if self.text == "" || self.text == placeholder {
self.text = placeholder
self.textColor = placeholderColor
if let color = self.textColor {
self.originalTextColor = color
}
self.originalText = ""
} else {
self.textColor = self.originalTextColor
self.originalText = self.text
}
}
override func becomeFirstResponder() -> Bool {
let result = super.becomeFirstResponder()
self.text = self.originalText
self.textColor = self.originalTextColor
return result
}
override func resignFirstResponder() -> Bool {
let result = super.resignFirstResponder()
updatePlaceHolder()
return result
}
}
It's now called rounded-circle
as explained here in the BS4 docs
<img src="img/gallery2.JPG" class="rounded-circle">
try this code
.gradientBoxesWithOuterShadows {
height: 200px;
width: 400px;
padding: 20px;
background-color: white;
/* outer shadows (note the rgba is red, green, blue, alpha) */
-webkit-box-shadow: 0px 0px 12px rgba(0, 0, 0, 0.4);
-moz-box-shadow: 0px 1px 6px rgba(23, 69, 88, .5);
/* rounded corners */
-webkit-border-radius: 12px;
-moz-border-radius: 7px;
border-radius: 7px;
/* gradients */
background: -webkit-gradient(linear, left top, left bottom,
color-stop(0%, white), color-stop(15%, white), color-stop(100%, #D7E9F5));
background: -moz-linear-gradient(top, white 0%, white 55%, #D5E4F3 130%);
}
or maybe refer to this fiddle: http://jsfiddle.net/necolas/vqnk9/
The NA can actually be due to 2 reasons. One is that there is a NA in your data. Another one is due to there being one of the values being constant. This results in standard deviation being equal to zero and hence the cor function returns NA.
Just FYI:
html should be table & width:100%. span should be margin: auto;
Swift 4:
I was getting this error because of a change in the UIVisualEffectView api. In Swift 3 it was ok to do this:
myVisuallEffectView.addSubview(someSubview)
But in Swift 4 I had to change it to this:
myVisualEffectView.contentView.addSubview(someSubview)
I just used Midhat's answer but appended CopyToDataTable()
on the end.
The code below is an extension to the answer that I used to quickly enable some paging.
int pageNum = 1;
int pageSize = 25;
DataTable dtPage = dt.Rows.Cast<System.Data.DataRow>().Skip((pageNum - 1) * pageSize).Take(pageSize).CopyToDataTable();
Try this, I think this is a natively way to concatenate strings in Kotlin:
val result = buildString{
append("a")
append("b")
}
println(result)
// you will see "ab" in console.
As explained already Google Compute Engine (GCE) is the Infrastructure as a service (IaaS) while Google App Engine (GAE) is Platform as a Service (PaaS). You can check the following diagram to understand the difference in a better way (Taken from and better explained here) -
Google Compute Engine
GCE is an important service provided from Google Cloud Platform (GCP) since most of the GCP services use GCE instances (VMs) beneath the management layer (not sure which one don't). This includes App Engine, Cloud Functions, Kubernetes Engine (Earlier Container Engine), Cloud SQL, etc. GCE instances are the most customisable unit there and thus should only be used when your application can't run on any other GCP services. Most of the time people use GCE to transfer their On-Prem applications to GCP, since it requires minimal changes. Later, they can choose to use other GCP services for separate component of their apps.
Google App Engine
GAE is the first service offered by GCP (Long before Google came to the cloud business). It autoscales from 0 to unlimited instances (It uses GCE underneath). It comes with 2 flavors Standard Environment and Flexible Environment.
Standard Environment is really fast, scales down to 0 instance when no-one is using your app, scales up and down in seconds and have dedicated Google services and libraries for caching, authentication etc. The caveat with Standard environment is that it is very restrictive since it runs in a sandbox. You have to use managed runtimes for specific programming languages only. The recent additions are Node.js (8.x) and Python 3.x. The older runtimes are available for Go, PHP, Python 2.7, Java etc.
Flexible Environment is more open as it allows you to use custom runtimes as it uses docker containers. Thus if your runtime is not available in the provided runtimes, you can always create your own dockerfile for the execution environment. The caveat with it is, it requires having at least 1 instance running, even if no-one is using your app, plus the scaling up and down requires few minutes.
Don't confuse GAE flexible with Kubernetes Engine, as the later one uses actual Kubernetes and provides much more customisation and features. GAE Flex is useful when you want stateless containers and your application rely on HTTP or HTTPS protocols only. For other protocols Kubernetes Engine (GKE) or GCE is your only choice. Check my other answer for better explanation.
I have a similar problem (at least I think it is similar). In one of the replies here the solution is as follows:
select
A.*
from
table_A A
inner join table_B B
on A.id = B.id
where
B.tag = 'chair'
That WHERE clause I would like to be:
WHERE B.tag = A.<col_name>
or, in my specific case:
WHERE B.val BETWEEN A.val1 AND A.val2
More detailed:
Table A carries status information of a fleet of equipment. Each status record carries with it a start and stop time of that status. Table B carries regularly recorded, timestamped data about the equipment, which I want to extract for the duration of the period indicated in table A.
Try subprocess.call
. It saves the return value of the program that was used.
According to my ping manual, it returns 0 on success, 2 when pings were sent but no reply was received and any other value indicates an error.
# typo error in import
import subprocess
for ping in range(1,10):
address = "127.0.0." + str(ping)
res = subprocess.call(['ping', '-c', '3', address])
if res == 0:
print "ping to", address, "OK"
elif res == 2:
print "no response from", address
else:
print "ping to", address, "failed!"
The spec says seconds:
http://tools.ietf.org/html/draft-ietf-oauth-v2-22#section-4.2.2
expires_in
OPTIONAL. The lifetime in seconds of the access token. For
example, the value "3600" denotes that the access token will
expire in one hour from the time the response was generated.
I agree with OP that it's careless for Google to not document this.
If you want a quick and dirty solution, you can do the following (though I do not recommend this for anything except test projects, maven will complain in length that this is not proper).
Add a dependency entry for each jar file you need, preferably with a perl script or something similar and copy/paste that into your pom file.
#! /usr/bin/perl
foreach my $n (@ARGV) {
$n=~s@.*/@@;
print "<dependency>
<groupId>local.dummy</groupId>
<artifactId>$n</artifactId>
<version>0.0.1</version>
<scope>system</scope>
<systemPath>\${project.basedir}/lib/$n</systemPath>
</dependency>
";
Try this for paths:
echo \"hello world\"|sed 's/ /+/g'|sed 's/+/\/g'|sed 's/\"//g'
It replaces the space inside the double-quoted string with a +
sing, then replaces the +
sign with a backslash, then removes/replaces the double-quotes.
I had to use this to replace the spaces in one of my paths in Cygwin.
echo \"$(cygpath -u $JAVA_HOME)\"|sed 's/ /+/g'|sed 's/+/\\/g'|sed 's/\"//g'
see http://download.oracle.com/javase/1.5.0/docs/api/java/util/regex/Pattern.html
for example [A-Za-z0-9]
In addition to the other options, in at least IntelliJ IDEA 2017 Ultimate, WebStorm 2020.2, and probably a ton of other versions, you can do it in a single shortcut.
Edit preferences, search for Select in Project View
, and under Keymap, view the mapped shortcut or map one of your choice.
On the Mac, Ctrl + Option + L is not already used, and is the same shortcut as Visual Studio for Windows uses natively (Ctrl + Alt + L, so that could be a good choice.
The Array
and List<T>
classes already have ForEach
methods, though only this specific implementation. (Note that the former is static
, by the way).
Not sure it really offers a great advantage over a foreach
statement, but you could write an extension method to do the job for all IEnumerable<T>
objects.
public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
{
foreach (var item in source)
action(item);
}
This would allow the exact code you posted in your question to work just as you want.
if ($('a').on('Clicked').text().search('1') == -1)
{
//Page == 1
}
else
{
//Page != 1
}
I know of two ways to do it.
Method 1
The first method (which I prefer) is to use msbuild:
msbuild project.sln /Flags...
Method 2
You can also run:
vcexpress project.sln /build /Flags...
The vcexpress option returns immediately and does not print any output. I suppose that might be what you want for a script.
Note that DevEnv is not distributed with Visual Studio Express 2008 (I spent a lot of time trying to figure that out when I first had a similar issue).
So, the end result might be:
os.system("msbuild project.sln /p:Configuration=Debug")
You'll also want to make sure your environment variables are correct, as msbuild and vcexpress are not by default on the system path. Either start the Visual Studio build environment and run your script from there, or modify the paths in Python (with os.putenv).
As said by others, RowDataBound or RowCreated event should work but if you want to avoid events declaration and put the whole code just below DataBind function call, you can do the following:
GridView1.DataBind()
If GridView1.Rows.Count > 0 Then
GridView1.HeaderRow.Cells(0).Visible = False
For i As Integer = 0 To GridView1.Rows.Count - 1
GridView1.Rows(i).Cells(0).Visible = False
Next
End If
Your calls are made recursively which pushes functions on to the stack infinitely that causes max call stack exceeded error due to recursive behavior. Instead try using setTimeout which is a callback.
Also based on your markup your selector is wrong. it should be #advisersDiv
function fadeIn() {
$('#pulseDiv').find('div#advisersDiv').delay(400).addClass("pulse");
setTimeout(fadeOut,1); //<-- Provide any delay here
};
function fadeOut() {
$('#pulseDiv').find('div#advisersDiv').delay(400).removeClass("pulse");
setTimeout(fadeIn,1);//<-- Provide any delay here
};
fadeIn();
Or a 1-liner:
perl -p -i -e 's/\r\n$/\n/g' file1.txt file2.txt ... filen.txt
Unfortunately, this is a rather broad class error message. Yet another thing which could be going wrong is if you are missing some classes/jars. For example, if you are missing the spring-expression jar file, the dispatch-servlet is not going to be able to locate your controller no matter how hard you try and how correct everything else is configured.
Try to replace it with °
, and also to set the charset to utf-8, as Martin suggests.
°C
will get you something like this:
if you are working a lot with arrays and not lists for some reason, this generic typed return generic method Add
might help
public static T[] Add<T>(T[] array, T item)
{
T[] returnarray = new T[array.Length + 1];
for (int i = 0; i < array.Length; i++)
{
returnarray[i] = array[i];
}
returnarray[array.Length] = item;
return returnarray;
}
Reset form inside the modal. Sample Code:
$('#myModal').on('hide.bs.modal', '#myModal', function (e) {
$('#myModal form')[0].reset();
});
It is possible to use the convert function here, but 36 characters are enough to hold the unique identifier value:
convert(nvarchar(36), requestID) as requestID
I would fire up Visual Studio, create a web project (or console app - doesn't matter).
For .Net Standard:
If there is no error, you should simply set the NameSpace you want to use to access the service and it'll be generated for you.
For .Net Core
Any of the methods above will generate a simple, very basic WCF client for you to use. You should find a "YourservicenameClient" class in the generated code.
For reference purpose, the generated cs file can be found in your Obj/debug(or release)/XsdGeneratedCode and you can still find the dlls in the TempPE folder.
The created Service(s) should have methods for each of the defined methods on the WSDL contract.
Instantiate the client and call the methods you want to call - that's all there is!
YourServiceClient client = new YourServiceClient();
client.SayHello("World!");
If you need to specify the remote URL (not using the one created by default), you can easily do this in the constructor of the proxy client:
YourServiceClient client = new YourServiceClient("configName", "remoteURL");
where configName
is the name of the endpoint to use (you will use all the settings except the URL), and the remoteURL
is a string representing the URL to connect to (instead of the one contained in the config).
It looks to me like the background images aren't actually background images...the site has the background images and the quotes in sibling divs with the children of the div containing the images having been assigned position: fixed; The quotes div is also given a transparent background.
wrapper div{
image wrapper div{
div for individual image{ <--- Fixed position
image <--- relative position
}
}
quote wrapper div{
div for individual quote{
quote
}
}
}
If you are using the Mono toolchain, you can use the monodis
utility with the --assemblyref
argument to list the dependencies of a .NET assembly. This will work on both .exe
and .dll
files.
monodis --assemblyref somefile.exe
$ monodis --assemblyref monop.exe
AssemblyRef Table
1: Version=4.0.0.0
Name=System
Flags=0x00000000
Public Key:
0x00000000: B7 7A 5C 56 19 34 E0 89
2: Version=4.0.0.0
Name=mscorlib
Flags=0x00000000
Public Key:
0x00000000: B7 7A 5C 56 19 34 E0 89
$ monodis --assemblyref Mono.CSharp.dll
AssemblyRef Table
1: Version=4.0.0.0
Name=mscorlib
Flags=0x00000000
Public Key:
0x00000000: B7 7A 5C 56 19 34 E0 89
2: Version=4.0.0.0
Name=System.Core
Flags=0x00000000
Public Key:
0x00000000: B7 7A 5C 56 19 34 E0 89
3: Version=4.0.0.0
Name=System
Flags=0x00000000
Public Key:
0x00000000: B7 7A 5C 56 19 34 E0 89
4: Version=4.0.0.0
Name=System.Xml
Flags=0x00000000
Public Key:
0x00000000: B7 7A 5C 56 19 34 E0 89
In the click event "this" is the a tag that was clicked
jQuery('.class1 a').click( function() {
var divToSlide = $(this).parent().find(".class2");
if (divToSlide.is(":hidden")) {
divToSlide.slideDown("slow");
} else {
divToSlide.slideUp();
}
});
There's multiple ways to get to the div though you could also use .siblings, .next etc
Start Day Time : SELECT DATEADD(day, DATEDIFF(day, 0, GETDATE()), '00:00:00')
End Day Time : SELECT DATEADD(day, DATEDIFF(day, 0, GETDATE()), '23:59:59')
This error is from google security... This Can Be Resolved by Enabling Less Secure .
Go To This Link : "https://www.google.com/settings/security/lesssecureapps" and Make "TURN ON" then your application runs For Sure.
Cookies.set("example", "foo"); // Sample 1
Cookies.set("example", "foo", { expires: 7 }); // Sample 2
Cookies.set("example", "foo", { path: '/admin', expires: 7 }); // Sample 3
alert( Cookies.get("example") );
Cookies.remove("example");
Cookies.remove('example', { path: '/admin' }) // Must specify path if used when setting.
I don't see an export or save as option.
I filtered out all the unwanted requests using -.css -.js -.woff
then right clicked on one of the requests then Copy > Copy all as HAR
Then pasted the content into a text editor and saved it.
Scott Meyers gives a nice example:
class GameCharacter;
int defaultHealthCalc(const GameCharacter& gc);
class GameCharacter
{
public:
typedef std::function<int (const GameCharacter&)> HealthCalcFunc;
explicit GameCharacter(HealthCalcFunc hcf = defaultHealthCalc)
: healthFunc(hcf)
{ }
int healthValue() const { return healthFunc(*this); }
private:
HealthCalcFunc healthFunc;
};
I think the example says it all.
std::function<>
is the "modern" way of writing C++ callbacks.
A Runnable is basically a type of class (Runnable is an Interface) that can be put into a thread, describing what the thread is supposed to do.
The Runnable Interface requires of the class to implement the method run()
like so:
public class MyRunnableTask implements Runnable {
public void run() {
// do stuff here
}
}
And then use it like this:
Thread t = new Thread(new MyRunnableTask());
t.start();
If you did not have the Runnable
interface, the Thread class, which is responsible to execute your stuff in the other thread, would not have the promise to find a run()
method in your class, so you could get errors. That is why you need to implement the interface.
Note that you do not need to define a class as usual, you can do all of that inline:
Thread t = new Thread(new Runnable() {
public void run() {
// stuff here
}
});
t.start();
This is similar to the above, only you don't create another named class.
Add up to Dmitry's answer, if you don't want to handle unique key IDs manually, you can use React.Children.toArray
as proposed in the React documentation
React.Children.toArray
Returns the children opaque data structure as a flat array with keys assigned to each child. Useful if you want to manipulate collections of children in your render methods, especially if you want to reorder or slice this.props.children before passing it down.
Note:
React.Children.toArray()
changes keys to preserve the semantics of nested arrays when flattening lists of children. That is, toArray prefixes each key in the returned array so that each element’s key is scoped to the input array containing it.
<div>
<ul>
{
React.Children.toArray(
this.state.data.map((item, i) => <li>Test</li>)
)
}
</ul>
</div>
CREATE TABLE `mom`.`sec_subsection` (
`idsec_sub` INT(11) NOT NULL ,
`idSubSections` INT(11) NOT NULL ,
PRIMARY KEY (`idsec_sub`, `idSubSections`)
);
You can rearrange columns directly by specifying their order:
df = df[['a', 'y', 'b', 'x']]
In the case of larger dataframes where the column titles are dynamic, you can use a list comprehension to select every column not in your target set and then append the target set to the end.
>>> df[[c for c in df if c not in ['b', 'x']]
+ ['b', 'x']]
a y b x
0 1 -1 2 3
1 2 -2 4 6
2 3 -3 6 9
3 4 -4 8 12
To make it more bullet proof, you can ensure that your target columns are indeed in the dataframe:
cols_at_end = ['b', 'x']
df = df[[c for c in df if c not in cols_at_end]
+ [c for c in cols_at_end if c in df]]
window.scrollTo(0,1);
this will help you but this javascript is may not work in all browsers
targetList = sourceList.stream().flatmap(List::stream).collect(Collectors.toList());
Change your line
ws.Range(Rand, 1).EntireRow.Delete
to
ws.Cells(Rand, 1).EntireRow.Delete
The most you can get is:
select#xyz {
border:0px;
outline:0px;
}
You cannot style it completely, but you can try something like
select#xyz {
-webkit-appearance: button;
-webkit-border-radius: 2px;
-webkit-box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.1);
-webkit-padding-end: 20px;
-webkit-padding-start: 2px;
-webkit-user-select: none;
background-image: url(../images/select-arrow.png),
-webkit-linear-gradient(#FAFAFA, #F4F4F4 40%, #E5E5E5);
background-position: center right;
background-repeat: no-repeat;
border: 1px solid #AAA;
color: #555;
font-size: inherit;
margin: 0;
overflow: hidden;
padding-top: 2px;
padding-bottom: 2px;
text-overflow: ellipsis;
white-space: nowrap;
}
The Web Developer Toolbar has an option to disable caching which makes it very easy to turn it on and off when you need it.
Try using a single quote instead of double quotes along with -g
Following scenario worked for me
curl -g -d '{"collection":[{"NumberOfParcels":1,"Weight":1,"Length":1,"Width":1,"Height":1}]}" -H "Accept: application/json" -H "Content-Type: application/json" --user [email protected]:123456 -X POST https://yoururl.com
WITH
curl -g -d "{'collection':[{'NumberOfParcels':1,'Weight':1,'Length':1,'Width':1,'Height':1}]}" -H "Accept: application/json" -H "Content-Type: application/json" --user [email protected]:123456 -X POST https://yoururl.com
This especially resolved my error curl command error : bad url colon is first character
You might want to check out this old thread.
If you can omit AM/PM portion and using SQL Server 2008, you should go with the approach suggested here
To get the rid from nenoseconds in time(SQL Server 2008), do as below :
SELECT CONVERT(TIME(0),GETDATE()) AS HourMinuteSecond
I hope it helps!!
firstOrCreate()
checks for all the arguments to be present before it finds
a match. If not all arguments match, then a new instance of the model will be created.
If you only want to check on a specific field, then use firstOrCreate(['field_name' => 'value'])
with only one item in the array. This will return the first item that matches, or create a new one if not matches are found.
The difference between firstOrCreate()
and firstOrNew()
:
firstOrCreate()
will automatically create a new entry in the database if there is not match found. Otherwise it will give you the matched item.firstOrNew()
will give you a new model instance to work with if not match was found, but will only be saved to the database when you explicitly do so (calling save()
on the model). Otherwise it will give you the matched item.Choosing between one or the other depends on what you want to do. If you want to modify the model instance before it is saved for the first time (e.g. setting a name
or some mandatory field), you should use firstOrNew()
. If you can just use the arguments to immediately create a new model instance in the database without modifying it, you can use firstOrCreate()
.
Allow Arbitrary Loads
to NO
!!!You must always use HTTPS
for your networking stuff. But if you really can't, just add an exception to the info.plist
For example, if you are using http://google.com
and getting that error, You MUST change it to https://google.com
(with s) since it supports perfectly.
But if you can't somehow, (and you cant convince backend developers to support SSL), add JUST this unsecured domain to the info.plist
(instead of making it available for ALL UNSECURE NET!)
If you want to manually count it, the size of a struct is just the size of each of its data members after accounting for alignment. There's no magic overhead bytes for a struct.
You should use python and pip in terminal or powershell terminal not in IDLE.
Examples:
pip install psycopg2
or
python -m pip install psycop2
Remember about add python to Windows PATH. I paste examples for Win7. I believe in Win10 this is similar.
Adding Python Path on Windows 7
python 2.7: cannot pip on windows "bash: pip: command not found"
Good luck:)
In Java, according to the JSSE Reference Guide, there is no default for the keystore
, the default for the truststore
is "jssecacerts, if it exists. Otherwise, cacerts".
A few applications use ~/.keystore
as a default keystore, but this is not without problems (mainly because you might not want all the application run by the user to use that trust store).
I'd suggest using application-specific values that you bundle with your application instead, it would tend to be more applicable in general.
Interface is the class that contains an abstract method that cannot create any object.Since Interface cannot create the object and its not a pure class, Its no worth implementing it.
Found this article on net, very relevant to this topic. So posting here.
How about the following, where y is the name of your matrix and you are looking for the maximum in the entire matrix:
row(y)[y==max(y)]
if you want to extract the row:
y[row(y)[y==max(y)],] # this returns unsorted rows.
To return sorted rows use:
y[sort(row(y)[y==max(y)]),]
The advantage of this approach is that you can change the conditional inside to anything you need. Also, using col(y)
and location of the hanging comma you can also extract columns.
y[,col(y)[y==max(y)]]
To find just the row for the max in a particular column, say column 2 you could use:
seq(along=y[,2])[y[,2]==max(y[,2])]
again the conditional is flexible to look for different requirements.
See Phil Spector's excellent "An introduction to S and S-Plus" Chapter 5 for additional ideas.
The jQuery UI sortable
feature includes a serialize
method to do this. It's quite simple, really. Here's a quick example that sends the data to the specified URL as soon as an element has changes position.
$('#element').sortable({
axis: 'y',
update: function (event, ui) {
var data = $(this).sortable('serialize');
// POST to server using $.post or $.ajax
$.ajax({
data: data,
type: 'POST',
url: '/your/url/here'
});
}
});
What this does is that it creates an array of the elements using the elements id
. So, I usually do something like this:
<ul id="sortable">
<li id="item-1"></li>
<li id="item-2"></li>
...
</ul>
When you use the serialize
option, it will create a POST query string like this: item[]=1&item[]=2
etc. So if you make use - for example - your database IDs in the id
attribute, you can then simply iterate through the POSTed array and update the elements' positions accordingly.
For example, in PHP:
$i = 0;
foreach ($_POST['item'] as $value) {
// Execute statement:
// UPDATE [Table] SET [Position] = $i WHERE [EntityId] = $value
$i++;
}
Please make sure that compileSdkVersion
, buildToolsVersion
and targetSdkVersion
have the same version number. I also have this error because it has different version. This solution worked for me.
I hope it can help you all.
The following code allows to upload gif, png, jpg, jpeg and bmp files.
var extension = $('#your_file_id').val().split('.').pop().toLowerCase();
if($.inArray(extension, ['gif','png','jpg','jpeg','bmp']) == -1) {
alert('Sorry, invalid extension.');
return false;
}
To add exact fontsize you can use following. Worked for me since in my case predefined ranges (Large, tiny) are not match with the font size required to me.
\fontsize{10}{12}\selectfont This is the text you need to be in 10px
More info: https://tug.org/TUGboat/tb33-3/tb105thurnherr.pdf
You array is being allocated on the stack in this case attempt to allocate an array of the same size using alloc.
The first case (export default {...}
) is ES2015 syntax for making some object definition available for use.
The second case (new Vue (...)
) is standard syntax for instantiating an object that has been defined.
The first will be used in JS to bootstrap Vue, while either can be used to build up components and templates.
See https://vuejs.org/v2/guide/components-registration.html for more details.
QT can be as simple as that of Windows. The equivalent code is
if (QMessageBox::Yes == QMessageBox(QMessageBox::Information, "title", "Question", QMessageBox::Yes|QMessageBox::No).exec())
{
}
Didn't see this one really...
https://docs.djangoproject.com/en/1.8/ref/forms/api/#more-granular-output
The as_p(), as_ul() and as_table() methods are simply shortcuts for lazy developers – they’re not the only way a form object can be displayed.
class BoundField Used to display HTML or access attributes for a single field of a Form instance.
The str() (unicode on Python 2) method of this object displays the HTML for this field.
To retrieve a single BoundField, use dictionary lookup syntax on your form using the field’s name as the key:
>>> form = ContactForm()
>>> print(form['subject'])
<input id="id_subject" type="text" name="subject" maxlength="100" />
To retrieve all BoundField objects, iterate the form:
>>> form = ContactForm()
>>> for boundfield in form: print(boundfield)
<input id="id_subject" type="text" name="subject" maxlength="100" />
<input type="text" name="message" id="id_message" />
<input type="email" name="sender" id="id_sender" />
<input type="checkbox" name="cc_myself" id="id_cc_myself" />
The field-specific output honors the form object’s auto_id setting:
>>> f = ContactForm(auto_id=False)
>>> print(f['message'])
<input type="text" name="message" />
>>> f = ContactForm(auto_id='id_%s')
>>> print(f['message'])
<input type="text" name="message" id="id_message" />
Call dialog.setCancelable(false);
from your activity/fragment.
// Two-dimensional GetLength example.
int[,] two = new int[5, 10];
Console.WriteLine(two.GetLength(0)); // Writes 5
Console.WriteLine(two.GetLength(1)); // Writes 10
you can use Error.stack to trace the function name and exact position of where you are in it.
See stacktrace.js
Update Spring 2018
<a href="/path/to/image.jpg" download="FileName.jpg">
While this is still supported, as of February 2018 chrome disabled this feature for cross-origin downloading meaning this will only work if the file is located on the same domain name.
I figured out a workaround for downloading cross domain images after Chrome's new update which disabled cross domain downloading. You could modify this into a function to suit your needs. You might be able to get the image mime-type (jpeg,png,gif,etc) with some more research if you needed to. There may be a way to do something similar to this with videos as well. Hope this helps someone!
Leeroy & Richard Parnaby-King:
UPDATE: As of spring 2018 this is no longer possible for cross-origin hrefs. So if you want to create on a domain other than imgur.com it will not work as intended. Chrome deprecations and removals announcement
var image = new Image();_x000D_
image.crossOrigin = "anonymous";_x000D_
image.src = "https://is3-ssl.mzstatic.com/image/thumb/Music62/v4/4b/f6/a2/4bf6a267-5a59-be4f-6947-d803849c6a7d/source/200x200bb.jpg";_x000D_
// get file name - you might need to modify this if your image url doesn't contain a file extension otherwise you can set the file name manually_x000D_
var fileName = image.src.split(/(\\|\/)/g).pop();_x000D_
image.onload = function () {_x000D_
var canvas = document.createElement('canvas');_x000D_
canvas.width = this.naturalWidth; // or 'width' if you want a special/scaled size_x000D_
canvas.height = this.naturalHeight; // or 'height' if you want a special/scaled size_x000D_
canvas.getContext('2d').drawImage(this, 0, 0);_x000D_
var blob;_x000D_
// ... get as Data URI_x000D_
if (image.src.indexOf(".jpg") > -1) {_x000D_
blob = canvas.toDataURL("image/jpeg");_x000D_
} else if (image.src.indexOf(".png") > -1) {_x000D_
blob = canvas.toDataURL("image/png");_x000D_
} else if (image.src.indexOf(".gif") > -1) {_x000D_
blob = canvas.toDataURL("image/gif");_x000D_
} else {_x000D_
blob = canvas.toDataURL("image/png");_x000D_
}_x000D_
$("body").html("<b>Click image to download.</b><br><a download='" + fileName + "' href='" + blob + "'><img src='" + blob + "'/></a>");_x000D_
};
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
_x000D_
192.168.0.101 - remote server
192.168.0.102 - local server
Remore server
CREATE USER 'backup_remote_2'@'192.168.0.102' IDENTIFIED WITH caching_sha2_password BY '3333333' REQUIRE SSL;
GRANT ALL PRIVILEGES ON *.* TO 'backup_remote_2'@'192.168.0.102';
FLUSH PRIVILEGES;
-
Local server
sudo /usr/local/mysql/bin/mysqldump \
--databases test_1 \
--host=192.168.0.101 \
--user=backup_remote_2 \
--password=3333333 \
--master-data \
--set-gtid-purged \
--events \
--triggers \
--routines \
--verbose \
--ssl-mode=REQUIRED \
--result-file=/home/db_1.sql
====================================
192.168.0.101 - remote server
192.168.0.102 - local server
Remore server
CREATE USER 'backup_remote'@'192.168.0.102' IDENTIFIED WITH caching_sha2_password BY '1111111' REQUIRE X509;
GRANT ALL PRIVILEGES ON *.* TO 'backup_remote'@'192.168.0.102';
FLUSH PRIVILEGES;
-
Local server
sudo /usr/local/mysql/bin/mysqldump \
--databases test_1 \
--host=192.168.0.101 \
--user=backup_remote \
--password=1111111 \
--events \
--triggers \
--routines \
--verbose \
--ssl-mode=VERIFY_CA \
--ssl-ca=/usr/local/mysql/data/ssl/ca.pem \
--ssl-cert=/usr/local/mysql/data/ssl/client-cert.pem \
--ssl-key=/usr/local/mysql/data/ssl/client-key.pem \
--result-file=/home/db_name.sql
On local server
/usr/local/mysql/data/ssl/
-rw------- 1 mysql mysql 1.7K Apr 16 22:28 ca-key.pem
-rw-r--r-- 1 mysql mysql 1.1K Apr 16 22:28 ca.pem
-rw-r--r-- 1 mysql mysql 1.1K Apr 16 22:28 client-cert.pem
-rw------- 1 mysql mysql 1.7K Apr 16 22:28 client-key.pem
Copy this files from remote server for (REQUIRE X509) or if SSL without (REQUIRE X509) do not copy
On remote server
/usr/local/mysql/data/
-rw------- 1 mysql mysql 1.7K Apr 16 22:28 ca-key.pem
-rw-r--r-- 1 mysql mysql 1.1K Apr 16 22:28 ca.pem
-rw-r--r-- 1 mysql mysql 1.1K Apr 16 22:28 client-cert.pem
-rw------- 1 mysql mysql 1.7K Apr 16 22:28 client-key.pem
-rw------- 1 mysql mysql 1.7K Apr 16 22:28 private_key.pem
-rw-r--r-- 1 mysql mysql 451 Apr 16 22:28 public_key.pem
-rw-r--r-- 1 mysql mysql 1.1K Apr 16 22:28 server-cert.pem
-rw------- 1 mysql mysql 1.7K Apr 16 22:28 server-key.pem
my.cnf
[mysqld]
# SSL
ssl_ca=/usr/local/mysql/data/ca.pem
ssl_cert=/usr/local/mysql/data/server-cert.pem
ssl_key=/usr/local/mysql/data/server-key.pem
Increase Password Security
https://dev.mysql.com/doc/refman/8.0/en/password-security-user.html
It's in the python docs.
import datetime
datetime.datetime.combine(datetime.date(2011, 1, 1),
datetime.time(10, 23))
returns
datetime.datetime(2011, 1, 1, 10, 23)
{% url 'polls:create' poll.id %}