When encountering an 'Unsupported feature' error while using Statement.RETURN_GENERATED_KEYS
, try this:
String[] returnId = { "BATCHID" };
String sql = "INSERT INTO BATCH (BATCHNAME) VALUES ('aaaaaaa')";
PreparedStatement statement = connection.prepareStatement(sql, returnId);
int affectedRows = statement.executeUpdate();
if (affectedRows == 0) {
throw new SQLException("Creating user failed, no rows affected.");
}
try (ResultSet rs = statement.getGeneratedKeys()) {
if (rs.next()) {
System.out.println(rs.getInt(1));
}
rs.close();
}
Where BATCHID
is the auto generated id.
testField.getText()
See the java doc for JTextField
Sample code can be:
button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
String textFieldValue = testField.getText();
// .... do some operation on value ...
}
})
I got this error trying to make a build with a Visual Studio Team Services build running on my local machine as an agent.
It worked in my regular workspace just fine and I was able to open the SLN file within the agent folder locally and everything compiled ok.
The DLL in question was stored within the project as Lib/MyDLL.DLL
and references with this in the csproj file:
<Reference Include="MYDLL, Version=2009.0.0.0, Culture=neutral, PublicKeyToken=b734e31dca085caa">
<SpecificVersion>False</SpecificVersion>
<HintPath>Lib\MYDLL.dll</HintPath>
</Reference>
It turned out it literally just wasn't finding the file despite the hint path. I think maybe msbuild was looking relative to the SLN file instead of the project file.
In any case if the message you get is Could not resolve this reference. Could not locate the assembly
then make sure that the DLL is in an accessible location to msbuild.
I kind of cheated and found a message that said Considered "Reference\bin\xxx.dll"
and just copied the dlls into there instead.
You can add a new column at the end of your table
ALTER TABLE assessment ADD q6 VARCHAR( 255 )
Add column to the begining of table
ALTER TABLE assessment ADD q6 VARCHAR( 255 ) FIRST
Add column next to a specified column
ALTER TABLE assessment ADD q6 VARCHAR( 255 ) after q5
and more options here
I've been wrestling with this, and I know there are other options, but I've come to the conclusion the safest pattern is:
create table destination_old as select * from destination;
drop table destination;
create table destination as select
d.*, s.country
from destination_old d left join source s
on d.id=s.id;
It's safe because you have a copy of destination
before you altered it. I suspect that update statements with joins weren't included in SQLite because they're powerful but a bit risky.
Using the pattern above you end up with two country
fields. You can avoid that by explicitly stating all of the columns you want to retrieve from destination_old
and perhaps using coalesce
to retrieve the values from destination_old
if the country
field in source
is null. So for example:
create table destination as select
d.field1, d.field2,...,coalesce(s.country,d.country) country
from destination_old d left join source s
on d.id=s.id;
All relative URLs in the HTML page generated by the JSP file are relative to the current request URL (the URL as you see in the browser address bar) and not to the location of the JSP file in the server side as you seem to expect. It's namely the webbrowser who has to download those resources individually by URL, not the webserver who has to include them from disk somehow.
Apart from changing the relative URLs to make them relative to the URL of the servlet instead of the location of the JSP file, another way to fix this problem is to make them relative to the domain root (i.e. start with a /
). This way you don't need to worry about changing the relative paths once again when you change the URL of the servlet.
<head>
<link rel="stylesheet" href="/context/css/default.css" />
<script src="/context/js/default.js"></script>
</head>
<body>
<img src="/context/img/logo.png" />
<a href="/context/page.jsp">link</a>
<form action="/context/servlet"><input type="submit" /></form>
</body>
However, you would probably like not to hardcode the context path. Very reasonable. You can obtain the context path in EL by ${pageContext.request.contextPath}
.
<head>
<link rel="stylesheet" href="${pageContext.request.contextPath}/css/default.css" />
<script src="${pageContext.request.contextPath}/js/default.js"></script>
</head>
<body>
<img src="${pageContext.request.contextPath}/img/logo.png" />
<a href="${pageContext.request.contextPath}/page.jsp">link</a>
<form action="${pageContext.request.contextPath}/servlet"><input type="submit" /></form>
</body>
(which can easily be shortened by <c:set var="root" value="${pageContext.request.contextPath}" />
and used as ${root}
elsewhere)
Or, if you don't fear unreadable XML and broken XML syntax highlighting, use JSTL <c:url>
:
<head>
<link rel="stylesheet" href="<c:url value="/css/default.css" />" />
<script src="<c:url value="/js/default.js" />"></script>
</head>
<body>
<img src="<c:url value="/img/logo.png" />" />
<a href="<c:url value="/page.jsp" />">link</a>
<form action="<c:url value="/servlet" />"><input type="submit" /></form>
</body>
Either way, this is in turn pretty cumbersome if you have a lot of relative URLs. For that you can use the <base>
tag. All relative URL's will instantly become relative to it. It has however to start with the scheme (http://
, https://
, etc). There's no neat way to obtain the base context path in plain EL, so we need a little help of JSTL here.
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<c:set var="req" value="${pageContext.request}" />
<c:set var="uri" value="${req.requestURI}" />
<c:set var="url">${req.requestURL}</c:set>
...
<head>
<base href="${fn:substring(url, 0, fn:length(url) - fn:length(uri))}${req.contextPath}/" />
<link rel="stylesheet" href="css/default.css" />
<script src="js/default.js"></script>
</head>
<body>
<img src="img/logo.png" />
<a href="page.jsp">link</a>
<form action="servlet"><input type="submit" /></form>
</body>
This has in turn (again) some caveats. Anchors (the #identifier
URL's) will become relative to the base path as well! You would like to make it relative to the request URL (URI) instead. So, change like
<a href="#identifier">jump</a>
to
<a href="${uri}#identifier">jump</a>
Each way has its own pros and cons. It's up to you which to choose. At least, you should now understand how this problem is caused and how to solve it :)
Seem like the input
type number
does not support size
attribute or it's not compatible along browsers, you can set it through CSS instead:
input[type=number]{
width: 80px;
}
#include <stdio.h>
#include <conio.h>
void main()
{
clrscr();
printf("Welcome\n\n\n");
unsigned char x='A';
char ch_array[8];
for(int i=0; x!=0; i++)
{
ch_array[i] = x & 1;
x = x >>1;
}
for(--i; i>=0; i--)
printf("%d", ch_array[i]);
getch();
}
Here's my solution.
I noticed that when I specify the listbox's rowsource via the properties window in the VBE, the headers pop up no problem. Its only when we try define the rowsource through VBA code that the headers get lost.
So I first went a defined the listboxes rowsource as a named range in the VBE for via the properties window, then I can reset the rowsource in VBA code after that. The headers still show up every time.
I am using this in combination with an advanced filter macro from a listobject, which then creates another (filtered) listobject on which the rowsource is based.
This worked for me
You'd normally use .row
to wrap two columns, not .col-md-12
- that's a column encasing another column. Afterall, .row
doesn't have the extra margins and padding that a col-md-12
would bring and also discounts the space that a column would introduce with negative left & right margins.
<div class="container">
<div class="row">
<h2>OntoExplorer<span style="color:#b92429">.</span></h2>
<div class="col-md-4 nopadding">
<div class="widget">
<div class="widget-header">
<h3>Dimensions</h3>
</div>
<div class="widget-content">
</div>
</div>
</div>
<div class="col-md-8 nopadding">
<div class="widget">
<div class="widget-header">
<h3>Results</h3>
</div>
<div class="widget-content">
</div>
</div>
</div>
</div>
</div>
if you really wanted to remove the padding/margins, add a class to filter out the margins/paddings for each child column.
.nopadding {
padding: 0 !important;
margin: 0 !important;
}
@@IDENTITY
returns the last identity value generated for any table in the current session, across all scopes. You need to be careful here, since it's across scopes. You could get a value from a trigger, instead of your current statement.
SCOPE_IDENTITY()
returns the last identity value generated for any table in the current session and the current scope. Generally what you want to use.
IDENT_CURRENT('tableName')
returns the last identity value generated for a specific table in any session and any scope. This lets you specify which table you want the value from, in case the two above aren't quite what you need (very rare). Also, as @Guy Starbuck mentioned, "You could use this if you want to get the current IDENTITY value for a table that you have not inserted a record into."
The OUTPUT
clause of the INSERT
statement will let you access every row that was inserted via that statement. Since it's scoped to the specific statement, it's more straightforward than the other functions above. However, it's a little more verbose (you'll need to insert into a table variable/temp table and then query that) and it gives results even in an error scenario where the statement is rolled back. That said, if your query uses a parallel execution plan, this is the only guaranteed method for getting the identity (short of turning off parallelism). However, it is executed before triggers and cannot be used to return trigger-generated values.
No, that's not quite right.
EAX is the full 32-bit value
AX is the lower 16-bits
AL is the lower 8 bits
AH is the bits 8 through 15 (zero-based)
So AX is composed of AH:AL halves, and is itself the low half of EAX. (The upper half of EAX isn't directly accessible as a 16-bit register; you can shift or rotate EAX if you want to get at it.)
For completeness, in addition to the above, which was based on a 32-bit CPU, 64-bit Intel/AMD CPUs have
RAX, which hold a 64-bit value, and where EAX is mapped to the lower 32 bits.
All of this also applies to EBX/RBX, ECX/RCX, and EDX/RDX. The other registers like EDI/RDI have a DI low 16-bit partial register, but no high-8 part, and the low-8 DIL is only accessible in 64-bit mode: Assembly registers in 64-bit architecture
Writing AL, AH, or AX merges into the full AX/EAX/RAX, leaving other bytes unmodified for historical reasons. (In 32 or 64-bit code, prefer a movzx eax, byte [mem]
or movzx eax, word [mem]
load if you don't specifically want this merging: Why doesn't GCC use partial registers?)
Writing EAX zero-extends into RAX. (Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?)
A little heads up. You said that the "ß" should be displayed as "Ÿ" in your database.
This is probably because you're using a database with Latin-1 character encoding or possibly your PHP-MySQL connection is set wrong, this is, P believes your MySQL is set to use UTF-8, so it sends data as UTF-8, but your MySQL believes PHP is sending data encoded as ISO 8859-1, so it may once again try to encode your sent data as UTF-8, causing this kind of trouble.
Take a look at mysql_set_charset. It may help you.
Using an iframe
to "render" a PDF will not work on all browsers; it depends on how the browser handles PDF files. Some browsers (such as Firefox and Chrome) have a built-in PDF rendered which allows them to display the PDF inline where as some older browsers (perhaps older versions of IE attempt to download the file instead).
Instead, I recommend checking out PDFObject which is a Javascript library to embed PDFs in HTML files. It handles browser compatibility pretty well and will most likely work on IE8.
In your HTML, you could set up a div
to display the PDFs:
<div id="pdfRenderer"></div>
Then, you can have Javascript code to embed a PDF in that div
:
var pdf = new PDFObject({
url: "https://something.com/HTC_One_XL_User_Guide.pdf",
id: "pdfRendered",
pdfOpenParams: {
view: "FitH"
}
}).embed("pdfRenderer");
Changing the ng-src
value is actually very simple. Like this:
<html ng-app>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.6/angular.min.js"></script>
</head>
<body>
<img ng-src="{{img_url}}">
<button ng-click="img_url = 'https://farm4.staticflickr.com/3261/2801924702_ffbdeda927_d.jpg'">Click</button>
</body>
</html>
Here is a jsFiddle of a working example: http://jsfiddle.net/Hx7B9/2/
The short answer is yes, every implementing type will have to create its own backing variable. This is because an interface is analogous to a contract. All it can do is specify particular publicly accessible pieces of code that an implementing type must make available; it cannot contain any code itself.
Consider this scenario using what you suggest:
public interface InterfaceOne
{
int myBackingVariable;
int MyProperty { get { return myBackingVariable; } }
}
public interface InterfaceTwo
{
int myBackingVariable;
int MyProperty { get { return myBackingVariable; } }
}
public class MyClass : InterfaceOne, InterfaceTwo { }
We have a couple of problems here:
myBackingVariable
will MyClass
use?The most common approach taken is to declare the interface and a barebones abstract class that implements it. This allows you the flexibility of either inheriting from the abstract class and getting the implementation for free, or explicitly implementing the interface and being allowed to inherit from another class. It works something like this:
public interface IMyInterface
{
int MyProperty { get; set; }
}
public abstract class MyInterfaceBase : IMyInterface
{
int myProperty;
public int MyProperty
{
get { return myProperty; }
set { myProperty = value; }
}
}
There are two ways to hide video tag controls
Remove the controls
attribute from the video tag.
Add the css to the video tag
video::-webkit-media-controls-panel {
display: none !important;
opacity: 1 !important;}
Reloading existing classes with existing data is likely to break things.
You can load new code into new class loaders relatively easily:
ClassLoader loader = URLClassLoader.newInstance(
new URL[] { yourURL },
getClass().getClassLoader()
);
Class<?> clazz = Class.forName("mypackage.MyClass", true, loader);
Class<? extends Runnable> runClass = clazz.asSubclass(Runnable.class);
// Avoid Class.newInstance, for it is evil.
Constructor<? extends Runnable> ctor = runClass.getConstructor();
Runnable doRun = ctor.newInstance();
doRun.run();
Class loaders no longer used can be garbage collected (unless there is a memory leak, as is often the case with using ThreadLocal, JDBC drivers, java.beans
, etc).
If you want to keep the object data, then I suggest a persistence mechanism such as Serialisation, or whatever you are used to.
Of course debugging systems can do fancier things, but are more hacky and less reliable.
It is possible to add new classes into a class loader. For instance, using URLClassLoader.addURL
. However, if a class fails to load (because, say, you haven't added it), then it will never load in that class loader instance.
As others said, you can't actually strictly do what you are asking for. That said, all of the tools available to the angular framework are actually available to you as well! What that means is you can actually write your own elements and provide this feature yourself. I wrote one of these up as an example which you can see at the following plunkr (http://plnkr.co/edit/Qrz9zFjc7Ud6KQoNMEI1).
The key parts of this are that I define a "clickable" element (don't do this if you need older IE support). In code that looks like:
<clickable>
<h1>Hello World!</h1>
</clickable>
Then I defined a directive to take this clickable element and turn it into what I want (something that automatically sets up my click event):
app.directive('clickable', function() {
return {
transclude: true,
restrict: 'E',
template: '<div ng-transclude ng-click="handleClick($event)"></div>'
};
});
Finally in my controller I have the click event ready to go:
$scope.handleClick = function($event) {
var i = 0;
};
Now, its worth stating that this hard codes the name of the method that handles the click event. If you wanted to eliminate this, you should be able to provide the directive with the name of your click handler and "tada" - you have an element (or attribute) that you can use and never have to inject "$event" again.
Hope that helps!
The easiest solution to workaround this is to create 'temporary' input with type submit and trigger click:
var submitInput = $("<input type='submit' />");
$("#aspnetForm").append(submitInput);
submitInput.trigger("click");
"ls".execute()
returns a Process
object which is why "ls".execute().text
works. You should be able to just read the error stream to determine if there were any errors.
There is a extra method on Process
that allow you to pass a StringBuffer
to retrieve the text: consumeProcessErrorStream(StringBuffer error)
.
Example:
def proc = "ls".execute()
def b = new StringBuffer()
proc.consumeProcessErrorStream(b)
println proc.text
println b.toString()
we have to install the M2E Eclipse WTP plugin To install: Preferences->Maven->Discovery->Open Catalog and choose the WTP plugin.
And restart eclipse
this is old but for help :
you can also use the stringReader stream
string str = "asasdkopaksdpoadks";
StringReader TheStream = new StringReader( str );
Here's what I would do:
json = "{\"errorCode\":0,\"errorMessage\":\"\",\"results\":{\"http://www.foo.com\":{\"hash\":\"e5TEd\",\"shortKeywordUrl\":\"\",\"shortUrl\":\"http://b.i.t.ly/1a0p8G\",\"userHash\":\"1a0p8G\"}},\"statusCode\":\"OK\"}"
hash = JSON.parse(json)
results = hash[:results]
If you know the source url then you can use:
source_url = "http://www.foo.com".to_sym
results.fetch(source_url)[:shortUrl]
=> "http://b.i.t.ly/1a0p8G"
If you don't know the key for the source url you can do the following:
results.fetch(results.keys[0])[:shortUrl]
=> "http://b.i.t.ly/1a0p8G"
If you're not wanting to lookup keys using symbols, you can convert the keys in the hash to strings:
results = json[:results].stringify_keys
results.fetch(results.keys[0])["shortUrl"]
=> "http://b.i.t.ly/1a0p8G"
If you're concerned the JSON structure might change you could build a simple JSON Schema and validate the JSON before attempting to access keys. This would provide a guard.
NOTE: Had to mangle the bit.ly url because of posting rules.
AJAX does the magic:
$(document).ready(function(
$.ajax({ url: 'script.php?argument=value&foo=bar' });
));
you can do this very easy by using following in sudo vi /etc/nginx/sites-available/default
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _ your_domain;
location /health {
access_log off;
return 200 "healthy\n";
}
location / {
proxy_pass http://localhost:8080;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_cache_bypass $http_upgrade;
}
}
You cannot define a variable of an incomplete type. You need to bring the whole definition of Cat
into scope before you can create the local variable in main
. I recommend that you move the definition of the type Cat
to a header and include it from the translation unit that has main
.
You should avoid the usage of $.ajaxSetup()
as described in the docs. Use the following instead:
$(document).ajaxSend(function(event, jqXHR, ajaxOptions) {
jqXHR.setRequestHeader('my-custom-header', 'my-value');
});
With Angular 5 and up, you DON'T have to use HttpParams. You can directly send your json object as shown below.
let data = {limit: "2"};
this.httpClient.get<any>(apiUrl, {params: data});
Please note that data values should be string, ie; { params: {limit: "2"}}
Use HttpParams, HttpClient from @angular/common/http
import { HttpParams, HttpClient } from '@angular/common/http';
...
constructor(private httpClient: HttpClient) { ... }
...
let params = new HttpParams();
params = params.append("page", 1);
....
this.httpClient.get<any>(apiUrl, {params: params});
Also, try stringifying your nested object using JSON.stringify()
.
UPDATE table1 SET col_a = 'newvalue'
Add a WHERE
condition if you want to only update some of the rows.
replace
[bash:~] $ sudo update-alternatives --install /usr/bin/python python \
/usr/bin/python2.7 2
[bash:~] $ sudo update-alternatives --install /usr/bin/python python \
/usr/bin/python3.5 3
with
[bash:~] $ sudo update-alternatives --install /usr/local/bin/python python \
/usr/bin/python2.7 2
[bash:~] $ sudo update-alternatives --install /usr/local/bin/python python \
/usr/bin/python3.5 3
e.g. installing into /usr/local/bin
instead of /usr/bin
.
and ensure the /usr/local/bin
is before /usr/bin
in PATH.
i.e.
[bash:~] $ echo $PATH
/usr/local/bin:/usr/bin:/bin
Ensure this always is the case by adding
export PATH=/usr/local/bin:$PATH
to the end of your ~/.bashrc
file. Prefixing the PATH
environment variable with custom bin folder such as /usr/local/bin
or /opt/<some install>/bin
is generally recommended to ensure that customizations are found before the default system ones.
Use 'q'
as the the optional argument to getline
.
#include <iostream>
#include <sstream>
int main() {
std::string numbers_str;
getline( std::cin, numbers_str, 'q' );
int number;
for ( std::istringstream numbers_iss( numbers_str );
numbers_iss >> number; ) {
std::cout << number << ' ';
}
}
A quick example:
List<List<string>> myList = new List<List<string>>();
myList.Add(new List<string> { "a", "b" });
myList.Add(new List<string> { "c", "d", "e" });
myList.Add(new List<string> { "qwerty", "asdf", "zxcv" });
myList.Add(new List<string> { "a", "b" });
// To iterate over it.
foreach (List<string> subList in myList)
{
foreach (string item in subList)
{
Console.WriteLine(item);
}
}
Is that what you were looking for? Or are you trying to create a new class
that extends List<T>
that has a member that is a `List'?
int uniqueId = 0;
int getUniqueId()
{
return uniqueId++;
}
Add synchronized
if you want it to be thread safe.
Found a very easy way to do this.
Paste following php script in box. In php script set API_ACCESS_KEY, set device ids separated by coma.
Press F9 or click Run.
Have fun ;)
<?php
// API access key from Google API's Console
define( 'API_ACCESS_KEY', 'YOUR-API-ACCESS-KEY-GOES-HERE' );
$registrationIds = array("YOUR DEVICE IDS WILL GO HERE" );
// prep the bundle
$msg = array
(
'message' => 'here is a message. message',
'title' => 'This is a title. title',
'subtitle' => 'This is a subtitle. subtitle',
'tickerText' => 'Ticker text here...Ticker text here...Ticker text here',
'vibrate' => 1,
'sound' => 1
);
$fields = array
(
'registration_ids' => $registrationIds,
'data' => $msg
);
$headers = array
(
'Authorization: key=' . API_ACCESS_KEY,
'Content-Type: application/json'
);
$ch = curl_init();
curl_setopt( $ch,CURLOPT_URL, 'https://android.googleapis.com/gcm/send' );
curl_setopt( $ch,CURLOPT_POST, true );
curl_setopt( $ch,CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch,CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch,CURLOPT_SSL_VERIFYPEER, false );
curl_setopt( $ch,CURLOPT_POSTFIELDS, json_encode( $fields ) );
$result = curl_exec($ch );
curl_close( $ch );
echo $result;
?>
For FCM, google url would be: https://fcm.googleapis.com/fcm/send
For FCM v1 google url would be: https://fcm.googleapis.com/v1/projects/YOUR_GOOGLE_CONSOLE_PROJECT_ID/messages:send
Note: While creating API Access Key on google developer console, you have to use 0.0.0.0/0 as ip address. (For testing purpose).
In case of receiving invalid Registration response from GCM server, please cross check the validity of your device token. You may check the validity of your device token using following url:
https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=YOUR_DEVICE_TOKEN
Some response codes:
Following is the description of some response codes you may receive from server.
{ "message_id": "XXXX" } - success
{ "message_id": "XXXX", "registration_id": "XXXX" } - success, device registration id has been changed mainly due to app re-install
{ "error": "Unavailable" } - Server not available, resend the message
{ "error": "InvalidRegistration" } - Invalid device registration Id
{ "error": "NotRegistered"} - Application was uninstalled from the device
To clone an existing database with postgres you can do that
/* KILL ALL EXISTING CONNECTION FROM ORIGINAL DB (sourcedb)*/
SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity
WHERE pg_stat_activity.datname = 'SOURCE_DB' AND pid <> pg_backend_pid();
/* CLONE DATABASE TO NEW ONE(TARGET_DB) */
CREATE DATABASE TARGET_DB WITH TEMPLATE SOURCE_DB OWNER USER_DB;
IT will kill all the connection to the source db avoiding the error
ERROR: source database "SOURCE_DB" is being accessed by other users
One thing you need to realize is in Ruby everything is an object. Given that, if you don't define your methods within Module
or Class
, Ruby will put it within the Object
class. So, your code will be local to the Object
scope.
A typical approach on Object Oriented Programming is encapsulate all logic within a class:
class Point
attr_accessor :x, :y
# If we don't specify coordinates, we start at 0.
def initialize(x = 0, y = 0)
# Notice that `@` indicates instance variables.
@x = x
@y = y
end
# Here we override the `+' operator.
def +(point)
Point.new(self.x + point.x, self.y + point.y)
end
# Here we draw the point.
def draw(offset = nil)
if offset.nil?
new_point = self
else
new_point = self + offset
end
new_point.draw_absolute
end
def draw_absolute
puts "x: #{self.x}, y: #{self.y}"
end
end
first_point = Point.new(100, 200)
second_point = Point.new(3, 4)
second_point.draw(first_point)
Hope this clarifies a bit.
['class' => 'yii\db\Connection',
'dsn' => 'mysql:host=localhost:3306;dbname=testdb',
'username' => 'user',
'password' => 'password',
'charset' => 'utf8',]
It's simple:
Just provide the port number along with the host name
and set default sock path to your mysql.sock
file path in php.ini
which the server is running on.
Personally none of the above worked for me. What did:
new_str = [str(x) for x in old_obj][0]
I got Bad Request, Your browser sent a request that this server could not understand
when I tried to download a file to the target machine using curl
.
I solved it by instead using scp
to copy the file from the source machine to the
target machine.
The CLI told you where is your mistake : delete WHAT? from student
...
Delete : How to delete/truncate tables from Hadoop-Hive?
Update : Update , SET option in Hive
In my case, I was looping through a series of objects from an XML file, but some of the instances apparently were not objects which was causing the error. Checking if the object was empty before processing it fixed the problem.
In other words, without checking if the object was empty, the script would error out on any empty object with the error as given below.
Trying to get property of non-object
For Example:
if (!empty($this->xml_data->thing1->thing2))
{
foreach ($this->xml_data->thing1->thing2 as $thing)
{
}
}
you can redirect stderr.
more explanation here, but having a command like:
MyCommand >log.txt 2>errors.txt
should grab the data you are looking for.
Also, as a trick, Windows bypasses that limitation if the path is prefixed with \\?\
(msdn)
Another trick if you have a root or destination that starts with a long path, perhaps SUBST
will help:
SUBST Q: "C:\Documents and Settings\MyLoginName\My Documents\MyStuffToBeCopied"
Xcopy Q:\ "d:\Where it needs to go" /s /e
SUBST Q: /D
I faced the same error with:
import codecs as cd
f=cd.open(filePath,'r','ISO-8859-1')
I solved the problem by changing the encoding to utf-16
f=cd.open(filePath,'r','utf-16')
I faced the same issue:
E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
I resolved by using the following commands:
apt-get update
apt-get install gnupg
To do this you want to loop through each row of your query results and use this info for each of your drop down's options. You should be able to adjust the code below fairly easily to meet your needs.
// Assume $db is a PDO object
$query = $db->query("YOUR QUERY HERE"); // Run your query
echo '<select name="DROP DOWN NAME">'; // Open your drop down box
// Loop through the query results, outputing the options one by one
while ($row = $query->fetch(PDO::FETCH_ASSOC)) {
echo '<option value="'.$row['something'].'">'.$row['something'].'</option>';
}
echo '</select>';// Close your drop down box
byte[] bytes = javax.xml.bind.DatatypeConverter.parseHexBinary(hexString);
String result= new String(bytes, encoding);
Use JSON.stringify()
and JSON.parse()
as suggested by no! This prevents the maybe rare but possible problem of a member name which includes the delimiter (e.g. member name three|||bars
).
If you really want to use PHP as your backend for socket.io ,here are what I found. Two socket.io php server side alternative.
https://github.com/walkor/phpsocket.io
https://github.com/RickySu/phpsocket.io
Exmaple codes for the first repository like this.
use PHPSocketIO\SocketIO;
// listen port 2021 for socket.io client
$io = new SocketIO(2021);
$io->on('connection', function($socket)use($io){
$socket->on('chat message', function($msg)use($io){
$io->emit('chat message', $msg);
});
});
Another simple example:
public static void listFilesInDirectory(String pathString) {
// A local class (a class defined inside a block, here a method).
class MyFilter implements FileFilter {
@Override
public boolean accept(File file) {
return !file.isHidden() && file.getName().endsWith(".txt");
}
}
File directory = new File(pathString);
File[] files = directory.listFiles(new MyFilter());
for (File fileLoop : files) {
System.out.println(fileLoop.getName());
}
}
// Call it
listFilesInDirectory("C:\\Users\\John\\Documents\\zTemp");
// Output
Cool.txt
RedditKinsey.txt
...
It's odd how many incorrect answers has been given to asynchronous case! It can be simply shown that checking index does not provide expected behavior:
// INCORRECT
var list = [4000, 2000];
list.forEach(function(l, index) {
console.log(l + ' started ...');
setTimeout(function() {
console.log(index + ': ' + l);
}, l);
});
output:
4000 started
2000 started
1: 2000
0: 4000
If we check for index === array.length - 1
, callback will be called upon completion of first iteration, whilst first element is still pending!
To solve this problem without using external libraries such as async, I think your best bet is to save length of list and decrement if after each iteration. Since there's just one thread we're sure there no chance of race condition.
var list = [4000, 2000];
var counter = list.length;
list.forEach(function(l, index) {
console.log(l + ' started ...');
setTimeout(function() {
console.log(index + ': ' + l);
counter -= 1;
if ( counter === 0)
// call your callback here
}, l);
});
You should create a ModelForm
(docs), which has a field that uses the PasswordInput
widget from the forms library.
It would look like this:
from django import models
class User(models.Model):
username = models.CharField(max_length=100)
password = models.CharField(max_length=50)
from django import forms
class UserForm(forms.ModelForm):
class Meta:
model = User
widgets = {
'password': forms.PasswordInput(),
}
For more about using forms in a view, see this section of the docs.
int
is a primitive, null is not a value that it can take on. You could change the method return type to return java.lang.Integer
and then you can return null, and existing code that returns int will get autoboxed.
Nulls are assigned only to reference types, it means the reference doesn't point to anything. Primitives are not reference types, they are values, so they are never set to null.
Using the object wrapper java.lang.Integer as the return value means you are passing back an Object and the object reference can be null.
In typescript it is possible to do an instanceof
check in an if statement and you will have access to the same variable with the Typed
properties.
So let's say MarkerSymbolInfo
has a property on it called marker
. You can do the following:
if (symbolInfo instanceof MarkerSymbol) {
// access .marker here
const marker = symbolInfo.marker
}
It's a nice little trick to get the instance of a variable using the same variable without needing to reassign it to a different variable name.
Check out these two resources for more information:
Another simple PHP example of using cURL:
<?php
$ch = curl_init(); // Initiate cURL
$url = "http://www.somesite.com/curl_example.php"; // Where you want to post data
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_POST, true); // Tell cURL you want to post something
curl_setopt($ch, CURLOPT_POSTFIELDS, "var1=value1&var2=value2&var_n=value_n"); // Define what you want to post
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // Return the output in string format
$output = curl_exec ($ch); // Execute
curl_close ($ch); // Close cURL handle
var_dump($output); // Show output
?>
Example found here: http://devzone.co.in/post-data-using-curl-in-php-a-simple-example/
Instead of using curl_setopt
you can use curl_setopt_array
.
In offical way:
> ($("element").data('bs.modal') || {})._isShown // Bootstrap 4
> ($("element").data('bs.modal') || {}).isShown // Bootstrap <= 3
{}
is used to avoid the case that modal is not opened yet (it return undefined
). You can also assign it equal {isShown: false}
to keep it's more make sense.
I recently came across Python 3 interpreter at CompileOnline.
Maybe the solution someone is looking for is this:
Response.Redirect("/Sucesso")
This work when used in the View as well.
If you want to disable ctrl+f5 , ctrl+R , f5 ,backspace then you can use this simple code. This code is working in Mozila as well as Chrome . Add this code inside your body tag:
<body onkeydown="return (event.keyCode == 154)">
Look at
For Each c as DataColumn in dt.Columns
'... = c.ColumnName
Next
or:
dt.GetDataTableSchema(...)
the path you are using is not correct you could just open the node_module and find the path of font-awesome. use could use js or svg font but i prefer the css style.
at first use this command to install font-awesome-free
npm install --save-dev @fortawesome/fontawesome-free
after that you can do this
@import "~@fortawesome/fontawesome-free/scss/fontawesome";
@import "~@fortawesome/fontawesome-free/scss/regular";
@import "~@fortawesome/fontawesome-free/scss/solid";
@import "~@fortawesome/fontawesome-free/scss/brands";
and I copy the font path like below this is optional
.copy('node_modules/@fortawesome/fontawesome-free/webfonts', 'public/fonts');
and finally just run the script
npm run dev
or npm run watch
in laravel
def working_ascii():
"""
G r e e t i n g s !
71, 114, 101, 101, 116, 105, 110, 103, 115, 33
"""
hello = [71, 114, 101, 101, 116, 105, 110, 103, 115, 33]
pmsg = ''.join(chr(i) for i in hello)
print(pmsg)
for i in range(33, 256):
print(" ascii: {0} char: {1}".format(i, chr(i)))
working_ascii()
You can loop throw the rows and columns, checking for nulls, keeping track of whether there's a null with a bool, then check it after looping through the table and handle it.
//your DataTable, replace with table get code
DataTable table = new DataTable();
bool tableHasNull = false;
foreach (DataRow row in table.Rows)
{
foreach (DataColumn col in table.Columns)
{
//test for null here
if (row[col] == DBNull.Value)
{
tableHasNull = true;
}
}
}
if (tableHasNull)
{
//handle null in table
}
You can also come out of the foreach loop with a break statement e.g.
//test for null here
if (row[col] == DBNull.Value)
{
tableHasNull = true;
break;
}
To save looping through the rest of the table.
We can modify entrypoint
of a non-running container with the docker run
command.
Example show PATH environment variable:
using bash
and echo
: This answer claims that echo
will not produce any output, which is incorrect.
docker run --rm --entrypoint bash <container> -c 'echo "$PATH"'
using printenv
docker run --rm --entrypoint printenv <container> PATH
My problem in this case was a simple instance of having a dumb null pointer exception in one of my methods that was being invoked later in the lifecycle. This was causing the "Error inflating class fragment" exception for me. In short, please remember to check the further down the exception stack trace for a possible cause.
Once I resolved the null pointer exception, my fragment loaded fine.
Actually, I've just experienced this problem in a stardard Java project structure as follows:
\myproject
\src
\libs
\res\log4j.properties
In Eclipse I need to add the res folder to build path, however, in Intellij, I need to mark the res folder as resouces as the linked screenshot shows: right click on the res folder and mark as resources.
The timeout configuration needs to be set at the client level, so the configuration I was setting in the web.config had no effect, the WCF test tool has its own configuration and there is where you need to set the timeout.
You may find this query useful:
SELECT *
FROM sys.dm_exec_requests
WHERE DB_NAME(database_id) = 'YourDBName'
AND blocking_session_id <> 0
A simple solution using streams:
int n = 321;
int sum = String.valueOf(n)
.chars()
.map(Character::getNumericValue)
.sum();
An alternative is to bind the dataframes, and assign them the type of variable they represent. This will let you use the full dataset in a tidier way
library(ggplot2)
library(dplyr)
df1 <- data.frame(dates = 1:10,Variable = rnorm(mean = 0.5,10))
df2 <- data.frame(dates = 1:10,Variable = rnorm(mean = -0.5,10))
df3 <- df1 %>%
mutate(Type = 'a') %>%
bind_rows(df2 %>%
mutate(Type = 'b'))
ggplot(df3,aes(y = Variable,x = dates,color = Type)) +
geom_line()
Edit:
In 2.7 / 3.2 there is a new writeheader()
method. Also, John Machin's answer provides a simpler method of writing the header row.
Simple example of using the writeheader()
method now available in 2.7 / 3.2:
from collections import OrderedDict
ordered_fieldnames = OrderedDict([('field1',None),('field2',None)])
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=ordered_fieldnames)
dw.writeheader()
# continue on to write data
Instantiating DictWriter requires a fieldnames argument.
From the documentation:
The fieldnames parameter identifies the order in which values in the dictionary passed to the writerow() method are written to the csvfile.
Put another way: The Fieldnames argument is required because Python dicts are inherently unordered.
Below is an example of how you'd write the header and data to a file.
Note: with
statement was added in 2.6. If using 2.5: from __future__ import with_statement
with open(infile,'rb') as fin:
dr = csv.DictReader(fin, delimiter='\t')
# dr.fieldnames contains values from first row of `f`.
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=dr.fieldnames)
headers = {}
for n in dw.fieldnames:
headers[n] = n
dw.writerow(headers)
for row in dr:
dw.writerow(row)
As @FM mentions in a comment, you can condense header-writing to a one-liner, e.g.:
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=dr.fieldnames)
dw.writerow(dict((fn,fn) for fn in dr.fieldnames))
for row in dr:
dw.writerow(row)
$('#scheduleDate').datepicker({ dateFormat : 'dd, MM, yy'});
var dateFormat = $('#scheduleDate').datepicker('option', 'dd, MM, yy');
$('#scheduleDate').datepicker('option', 'dateFormat', 'dd, MM, yy');
var result = $('#scheduleDate').val();
alert('result: ' + result);
result: 20, April, 2012
It is very bad style to define external interfaces in .c files. .
You should do this
a.h
extern void doSomething (int sig);
a.c
void doSomething (int sig)
{
... do stuff
}
b.c
#include "a.h"
.....
signal(SIGNAL, doSomething);
.
$("div.test:not(:first)").hide();
or:
$("div.test:not(:eq(0))").hide();
or:
$("div.test").not(":eq(0)").hide();
or:
$("div.test:gt(0)").hide();
or: (as per @Jordan Lev's comment):
$("div.test").slice(1).hide();
and so on.
See:
I needed to make a ListView
with items of different colors. I modified Shardul's method a bit and result in this:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
this, android.R.layout.simple_list_item_1, colorString) {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
TextView textView = (TextView) super.getView(position, convertView, parent);
textView.setBackgroundColor(assignBackgroundColor(position));
textView.setTextColor(assignTextColor(position));
return textView;
}
};
colorList.setAdapter(adapter);
assignBackgroundColor()
and assignTextColor()
are methods that assign color you want. They can be replaced with int[]
arrays.
Without more details as to what the question is exactly asking, I am going to answer the title of the question,
Create an Array
:
String[] myArray = new String[2];
int[] intArray = new int[2];
// or can be declared as follows
String[] myArray = {"this", "is", "my", "array"};
int[] intArray = {1,2,3,4};
Create an ArrayList
:
ArrayList<String> myList = new ArrayList<String>();
myList.add("Hello");
myList.add("World");
ArrayList<Integer> myNum = new ArrayList<Integer>();
myNum.add(1);
myNum.add(2);
This means, create an ArrayList
of String
and Integer
objects. You cannot use int
because thats a primitive data types, see the link for a list of primitive data types.
Create a Stack
:
Stack myStack = new Stack();
// add any type of elements (String, int, etc..)
myStack.push("Hello");
myStack.push(1);
Create an Queue
: (using LinkedList)
Queue<String> myQueue = new LinkedList<String>();
Queue<Integer> myNumbers = new LinkedList<Integer>();
myQueue.add("Hello");
myQueue.add("World");
myNumbers.add(1);
myNumbers.add(2);
Same thing as an ArrayList
, this declaration means create an Queue
of String
and Integer
objects.
In response to your comment from the other given answer,
i am pretty confused now, why are using string. and what does
<String>
means
We are using String
only as a pure example, but you can add any other object, but the main point is that you use an object not a primitive type. Each primitive data type has their own primitive wrapper class, see link for list of primitive data type's wrapper class.
I have posted some links to explain the difference between the two, but here are a list of primitive types
byte
short
char
int
long
boolean
double
float
Which means, you are not allowed to make an ArrayList
of integer's like so:
ArrayList<int> numbers = new ArrayList<int>();
^ should be an object, int is not an object, but Integer is!
ArrayList<Integer> numbers = new ArrayList<Integer>();
^ perfectly valid
Also, you can use your own objects, here is my Monster
object I created,
public class Monster {
String name = null;
String location = null;
int age = 0;
public Monster(String name, String loc, int age) {
this.name = name;
this.loc = location;
this.age = age;
}
public void printDetails() {
System.out.println(name + " is from " + location +
" and is " + age + " old.");
}
}
Here we have a Monster
object, but now in our Main.java
class we want to keep a record of all our Monster
's that we create, so let's add them to an ArrayList
public class Main {
ArrayList<Monster> myMonsters = new ArrayList<Monster>();
public Main() {
Monster yetti = new Monster("Yetti", "The Mountains", 77);
Monster lochness = new Monster("Lochness Monster", "Scotland", 20);
myMonsters.add(yetti); // <-- added Yetti to our list
myMonsters.add(lochness); // <--added Lochness to our list
for (Monster m : myMonsters) {
m.printDetails();
}
}
public static void main(String[] args) {
new Main();
}
}
(I helped my girlfriend's brother with a Java game, and he had to do something along those lines as well, but I hope the example was well demonstrated)
I did a log file which prints data into text file using "Winston" log. The source code is here below,
const { createLogger, format, transports } = require('winston');
var fs = require('fs')
var logger = fs.createWriteStream('Data Log.txt', {`
flags: 'a'
})
const os = require('os');
var sleep = require('system-sleep');
var endOfLine = require('os').EOL;
var t = ' ';var s = ' ';var q = ' ';
var array1=[];
var array2=[];
var array3=[];
var array4=[];
array1[0] = 78;`
array1[1] = 56;
array1[2] = 24;
array1[3] = 34;
for (var n=0;n<4;n++)
{
array2[n]=array1[n].toString();
}
for (var k=0;k<4;k++)
{
array3[k]=Buffer.from(' ');
}
for (var a=0;a<4;a++)
{
array4[a]=Buffer.from(array2[a]);
}
for (m=0;m<4;m++)
{
array4[m].copy(array3[m],0);
}
logger.write('Date'+q);
logger.write('Time'+(q+' '))
logger.write('Data 01'+t);
logger.write('Data 02'+t);
logger.write('Data 03'+t);
logger.write('Data 04'+t)
logger.write(endOfLine);
logger.write(endOfLine);
enter code here`enter code here`
}
function mydata() //user defined function
{
logger.write(datechar+s);
logger.write(timechar+s);
for ( n = 0; n < 4; n++)
{
logger.write(array3[n]);
}
logger.write(endOfLine);
}
for (;;)
}
var now = new Date();
var dateFormat = require('dateformat');
var date = dateFormat(now,"isoDate");
var time = dateFormat(now, "h:MM:ss TT ");
var datechar = date.toString();
var timechar = time.toString();
mydata();
sleep(5*1000);
}
You can use my react-native-simple-shadow-view
Java's parseInt method is actally a bunch of code eating "false" hex : if you want to translate -32768, you should convert the absolute value into hex, then prepend the string with '-'.
There is a sample of Integer.java file :
public static int parseInt(String s, int radix)
The description is quite explicit :
* Parses the string argument as a signed integer in the radix
* specified by the second argument. The characters in the string
...
...
* parseInt("0", 10) returns 0
* parseInt("473", 10) returns 473
* parseInt("-0", 10) returns 0
* parseInt("-FF", 16) returns -255
Another way using Newtonsoft.Json:
dynamic stuff = Newtonsoft.Json.JsonConvert.DeserializeObject("{ color: 'red', value: 5 }");
string color = stuff.color;
int value = stuff.value;
NSDictionary from NSData
http://www.cocoanetics.com/2009/09/nsdictionary-from-nsdata/
NSDictionary to NSData
You can use NSPropertyListSerialization class for that. Have a look at its method:
+ (NSData *)dataFromPropertyList:(id)plist format:(NSPropertyListFormat)format
errorDescription:(NSString **)errorString
Returns an NSData object containing a given property list in a specified format.
I had the same problem. I removed mySQL completely, and reinstall it using homebrew.
%s
indicates a conversion type of string when using python's string formatting capabilities. More specifically, %s
converts a specified value to a string using the str()
function. Compare this with the %r
conversion type that uses the repr()
function for value conversion.
Take a look at the docs for string formatting.
July 2015 - I have concluded that IntelliJ does not support automatically resolving imports with a single function. "Organize imports" simply removes unused imports, it does not resolve unimported types. Control-Space resolves a single unimported type. There does not exist a single action to resolve all types' imports.
You could modify .adm
and add
.adm{
clear:both;
}
That should make it move to a new line
You best see if you have a parent element of the div you are querying. If so get the parent element and perform an element.querySelectorAll("div")
. Once you get the nodeList
apply a filter on it over the innerText
property. Assume that a parent element of the div that we are querying has an id
of container
. You can normally access container directly from the id but let's do it the proper way.
var conty = document.getElementById("container"),
divs = conty.querySelectorAll("div"),
myDiv = [...divs].filter(e => e.innerText == "SomeText");
So that's it.
There is a typo in your SQL. Fixed version is below:
SELECT GETVARIABLE('SYSIBM.VERSION') FROM SYSIBM.SYSDUMMY1;
I ran this on the IBM Mainframe under Z/OS in QMF and got the following results. We are currently running DB2 Version 8 and upgrading to Ver 10.
DSN08015 -- Format seems to be DSNVVMMM
-- PPP IS PRODUCT STRING 'DSN'
-- VV IS VERSION NUMBER E.G. 08
-- MMM IS MAINTENANCE LEVEL E.G. 015
According to the latest doc you can do the following-
Add a day
moment().add(1, 'days').calendar();
Add Year
moment().add(1, 'years').calendar();
Add Month
moment().add(1, 'months').calendar();
You could define a message to throw when a certain error occurs:
throw std::invalid_argument( "received negative value" );
or you could define it like this:
std::runtime_error greatScott("Great Scott!");
double getEnergySync(int year) {
if (year == 1955 || year == 1885) throw greatScott;
return 1.21e9;
}
Typically, you would have a try ... catch
block like this:
try {
// do something that causes an exception
}catch (std::exception& e){ std::cerr << "exception: " << e.what() << std::endl; }
do not forget to insert (or unCommanet) this line at the beginning of your pod file:
platform :iOS, '9.0'
that saves my day
The thing here is - You have already another tomcat running on port 8080, you need to shut it down. You can do it in several ways. let me tell you 2 simplest ways
OR
Big difference between an image and an iframe is the fact that an image keeps its aspect-ratio. You could combine an image and an iframe with will result in a responsive iframe. Hope this answerers your question.
Check this link for example : http://jsfiddle.net/Masau/7WRHM/
HTML:
<div class="wrapper">
<div class="h_iframe">
<!-- a transparent image is preferable -->
<img class="ratio" src="http://placehold.it/16x9"/>
<iframe src="http://www.youtube.com/embed/WsFWhL4Y84Y" frameborder="0" allowfullscreen></iframe>
</div>
<p>Please scale the "result" window to notice the effect.</p>
</div>
CSS:
html,body {height:100%;}
.wrapper {width:80%;height:100%;margin:0 auto;background:#CCC}
.h_iframe {position:relative;}
.h_iframe .ratio {display:block;width:100%;height:auto;}
.h_iframe iframe {position:absolute;top:0;left:0;width:100%; height:100%;}
note: This only works with a fixed aspect-ratio.
Here is a way to do it that works, but may not be best practise for any language really:
var x,y;
x='something';
y=1;
undefined === y || (x = y);
alternatively
undefined !== y && (x = y);
Is it possible that the date could actually be outside that range? Does it come from user input? If the answer to either of these questions is yes, then you should always check - otherwise you're leaving your application prone to error.
You can format your date for inclusion in an SQL statement rather easily:
var sqlFormattedDate = myDateTime.Date.ToString("yyyy-MM-dd HH:mm:ss");
Here is the direct solution:
// POST api/<controller>
[HttpPost, Route("postproducts/{product1}/{product2}")]
public void PostProducts([FromUri]Product product, Product product2)
{
Product productOne = product;
Product productTwo = product2;
}
$scope.url = 'http://localhost:53263/api/Products/' +
$scope.product + '/' + $scope.product2
$http.post($scope.url)
.success(function(response) {
alert("success")
})
.error(function() { alert("fail") });
};
If you are sane you do this:
var $scope.products.product1 = product1;
var $scope.products.product2 = product2;
And then send products in the body (like a balla).
Here goes:
char str[] = "This is the end";
char input[100];
printf("%s\n", str);
printf("%c\n", *str);
scanf("%99s", input);
Use the find and replace command accessible through ctrl+h, make sure you are searching through the functions of the cells. You can then wildcards to accommodate any deviations of the formula. * for # wildcards, ? for charcter wildcards, and ~? or ~* to search for ? or *.
I had a similar problem which was solved by going to the "SQL Server Configuration Manager" and making sure that the "SQL Server Browser" was configured to start automatically and was started.
I came across this solution in the answer of this forum post: http://social.msdn.microsoft.com/Forums/en-US/sqlexpress/thread/8cdc71eb-6929-4ae8-a5a8-c1f461bd61b4/
I hope this helps somebody out there.
You can make a method just like new Date(year,month,date)
in your code by using Calendar
class.
private Date getDate(int year,int month,int date){
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month-1);
cal.set(Calendar.DAY_OF_MONTH, day);
return cal.getTime();
}
It will work just like the deprecated constructor of Date
If you don't want the 2-way binding via [(ngModel)], do this:
<select (change)="selectedAccountName = $event.target.value">
<option *ngFor="let acct of accountsList" [ngValue]="acct">{{ acct.name }}</option>
</select>
Just tested on my project on Angular 4 and it works! The accountsList is an array of Account objects in which name is a property of Account.
Interesting observation:
[ngValue]="acct" exerts the same result as [ngValue]="acct.name".
Don't know how Angular 4 accomplish it!
use FORMACTION
<input type="submit" value="Delete" formaction="@Url.Action("Delete", new { id = Model.Id })" />
To upload files directly to Mongo DB you can make use of Grid FS. Although I will suggest you to upload the file anywhere in file system and put the image's url in the JSON object for every entry and then when you call the data for specific object you can call for the image using URL.
Tell me which backend technology are you using? I can give more suggestions based on that.
Cors change the request method before it's done, from POST to OPTIONS, so, your post data will not be sent. The way that worked to handle this cors issue, is performing the request with ajax, which does not support the OPTIONS method. example code:
$.ajax({
type: "POST",
crossdomain: true,
url: "http://localhost:1415/anything",
dataType: "json",
data: JSON.stringify({
anydata1: "any1",
anydata2: "any2",
}),
success: function (result) {
console.log(result)
},
error: function (xhr, status, err) {
console.error(xhr, status, err);
}
});
with this headers on c# server:
if (request.HttpMethod == "OPTIONS")
{
response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With");
response.AddHeader("Access-Control-Allow-Methods", "GET, POST");
response.AddHeader("Access-Control-Max-Age", "1728000");
}
response.AppendHeader("Access-Control-Allow-Origin", "*");
Without doing this %config IPCompleter.greedy=True
after you import a package like numpy or pandas in this way;
import numpy as np
import pandas as pd
.
Then you type in pd.
then tap the tab button it brings out all the possible methods to use very easy and straight forward.
I had this problem earlier and this was my solution.
With Worksheets("Sheet1").Columns(5)
.NumberFormat = "0"
.Value = .Value
End With
To create a "drop down menu" you can use OptionMenu
in tkinter
Example of a basic OptionMenu
:
from Tkinter import *
master = Tk()
variable = StringVar(master)
variable.set("one") # default value
w = OptionMenu(master, variable, "one", "two", "three")
w.pack()
mainloop()
More information (including the script above) can be found here.
Creating an OptionMenu
of the months from a list would be as simple as:
from tkinter import *
OPTIONS = [
"Jan",
"Feb",
"Mar"
] #etc
master = Tk()
variable = StringVar(master)
variable.set(OPTIONS[0]) # default value
w = OptionMenu(master, variable, *OPTIONS)
w.pack()
mainloop()
In order to retrieve the value the user has selected you can simply use a .get()
on the variable that we assigned to the widget, in the below case this is variable
:
from tkinter import *
OPTIONS = [
"Jan",
"Feb",
"Mar"
] #etc
master = Tk()
variable = StringVar(master)
variable.set(OPTIONS[0]) # default value
w = OptionMenu(master, variable, *OPTIONS)
w.pack()
def ok():
print ("value is:" + variable.get())
button = Button(master, text="OK", command=ok)
button.pack()
mainloop()
I would highly recommend reading through this site for further basic tkinter information as the above examples are modified from that site.
Take a look at this. a clean and simple solution using jQuery.
<h1 onmouseover="go('The dog is in its shed')" onmouseout="clear()">lalala</h1>
<div id="goy"></div>
<script type="text/javascript">
$(function() {
$("h1").on('mouseover', function() {
$("#goy").text('The dog is in its shed');
}).on('mouseout', function() {
$("#goy").text("");
});
});
This produces them one-at-time without making a list - the same end result as Marios Choudary's answer (or simply calling C++'s nextPermute, as Anders answer notes). But this is Heap's algorithm (the non-recursive version) re-arranged and a class to save context. Used as:
P5=new genPermutes_t(5); // P5.P is now [0,1,2,3,4]
while(!P5.isDone()) {
// use P5.P here
P5.next();
}
Code is in C# without being an endorsement. Variables are as-is from Heap's pseudocode, to which the comments also refer:
public class genPermutes_t {
public int[] P; // the current permuation
private int n, i; // vars from the original algorithm
private int[] c; // ditto
public genPermutes_t(int count) {
// init algorithm:
n=count;
i=0;
c=new int[n];
for(int j=0;j<n;j++) c[j]=0;
// start current permutation as 0,1 ... n-1:
P=new int[n];
for(int j=0;j<n;j++) P[j]=j;
}
public bool isDone() {
return i>=n; // condition on the original while loop
}
public void next() {
// the part of the loop that spins until done or ready for next permute:
while(i<n && c[i]>=i) {
c[i]=0;
i++;
}
// pulled from inside loop -- the part that makes next permute:
if(i<n) { // if not done
if(i%2==0) swap(0,i);
else swap(c[i], i);
// "print P" removed. User will simply examine it
c[i]+=1;
i=0;
}
}
private void swap(int i1, int i2) {int tmp=P[i1]; P[i1]=P[i2]; P[i2]=tmp;}
}
<textarea rows="4" cols="50"></textarea>
It is equivalent to:
textarea {
height: 4em;
width: 50em;
}
where 1em is equivalent to the current font size, thus make the text area 50 chars wide. see here.
Add android:textAllCaps="false" in <Button>
tag that's it.
This doesn't answer the OPs question, but since I ended up here after searching furiously for an answer, I wanted to share what we discovered.
In our case, it turns out these 499s are expected. When users use the type-ahead feature in some search boxes, for example, we see something like this in the logs.
GET /api/search?q=h [Status 499]
GET /api/search?q=he [Status 499]
GET /api/search?q=hel [Status 499]
GET /api/search?q=hell [Status 499]
GET /api/search?q=hello [Status 200]
So in our case I think its safe to use proxy_ignore_client_abort on
which was suggested in a previous answer. Thanks for that!
You can do something like this:
Using search will return a SRE_match object, if it matches your search string.
>>> import re
>>> m = re.search(u'ba[r|z|d]', 'bar')
>>> m
<_sre.SRE_Match object at 0x02027288>
>>> m.group()
'bar'
>>> n = re.search(u'ba[r|z|d]', 'bas')
>>> n.group()
If not, it will return None
Traceback (most recent call last):
File "<pyshell#17>", line 1, in <module>
n.group()
AttributeError: 'NoneType' object has no attribute 'group'
And just to print it to demonstrate again:
>>> print n
None
In addition to running it with mvn exec:java
, you can also run it with mvn exec:exec
mvn exec:exec -Dexec.executable="java" -Dexec.args="-classpath %classpath your.package.MainClass"
Using moment.js as you asked, there is a unix
method that accepts unix timestamps in seconds:
var dateString = moment.unix(value).format("MM/DD/YYYY");
There is the accept attribute for the input tag. However, it is not reliable in any way. Browsers most likely treat it as a "suggestion", meaning the user will, depending on the file manager as well, have a pre-selection that only displays the desired types. They can still choose "all files" and upload any file they want.
For example:
<form>_x000D_
<input type="file" name="pic" id="pic" accept="image/gif, image/jpeg" />_x000D_
</form>
_x000D_
Read more in the HTML5 spec
Keep in mind that it is only to be used as a "help" for the user to find the right files. Every user can send any request he/she wants to your server. You always have to validated everything server-side.
So the answer is: no you cannot restrict, but you can set a pre-selection but you cannot rely on it.
Alternatively or additionally you can do something similar by checking the filename (value of the input field) with JavaScript, but this is nonsense because it provides no protection and also does not ease the selection for the user. It only potentially tricks a webmaster into thinking he/she is protected and opens a security hole. It can be a pain in the ass for users that have alternative file extensions (for example jpeg instead of jpg), uppercase, or no file extensions whatsoever (as is common on Linux systems).
I had same problem to find a way to check whether ASP.NET 4.5 is on the Server. Because v4.5 is in place replace to v4.0, if you look at c:\windows\Microsoft.NET\Framework, you will not see v4.5 folder. Actually there is a simple way to see the version installed in the machine. Under Windows Server 2008 or Windows 7, just go to control panel -> Programs and Features, you will find "Microsoft .NET Framework 4.5" if it is installed.
Here is my answer for a simple comparator tool
public class Comparator {
public boolean isComparatorRunning = false;
public void compareTableColumns(List<String> tableNames) {
if(!isComparatorRunning) {
isComparatorRunning = true;
try {
for (String schTableName : tableNames) {
Map<String, String> schemaTableMap = ComparatorUtil.getSchemaTableMap(schTableName);
Map<String, ColumnInfo> primaryColMap = ComparatorUtil.getColumnMetadataMap(DbConnectionRepository.getConnectionOne(), schemaTableMap);
Map<String, ColumnInfo> secondaryColMap = ComparatorUtil.getColumnMetadataMap(DbConnectionRepository.getConnectionTwo(), schemaTableMap);
ComparatorUtil.publishColumnInfoOutput("Comparing table : "+ schemaTableMap.get(CompConstants.TABLE_NAME));
compareColumns(primaryColMap, secondaryColMap);
}
} catch (Exception e) {
ComparatorUtil.publishColumnInfoOutput("ERROR"+e.getMessage());
}
isComparatorRunning = false;
}
}
public void compareColumns(Map<String, ColumnInfo> primaryColMap, Map<String, ColumnInfo> secondaryColMap) {
try {
boolean isEqual = true;
for(Map.Entry<String, ColumnInfo> entry : primaryColMap.entrySet()) {
String columnName = entry.getKey();
ColumnInfo primaryColInfo = entry.getValue();
ColumnInfo secondaryColInfo = secondaryColMap.remove(columnName);
if(secondaryColInfo == null) {
// column is not present in Secondary Environment
ComparatorUtil.publishColumnInfoOutput("ALTER", primaryColInfo);
isEqual = false;
continue;
}
if(!primaryColInfo.equals(secondaryColInfo)) {
isEqual = false;
// Column not equal in secondary env
ComparatorUtil.publishColumnInfoOutput("MODIFY", primaryColInfo);
}
}
if(!secondaryColMap.isEmpty()) {
isEqual = false;
for(Map.Entry<String, ColumnInfo> entry : secondaryColMap.entrySet()) {
// column is not present in Primary Environment
ComparatorUtil.publishColumnInfoOutput("DROP", entry.getValue());
}
}
if(isEqual) {
ComparatorUtil.publishColumnInfoOutput("--Exact Match");
}
} catch (Exception e) {
ComparatorUtil.publishColumnInfoOutput("ERROR"+e.getMessage());
}
}
public void compareTableColumnsValues(String primaryTableName, String primaryColumnNames, String primaryCondition, String primaryKeyColumn,
String secTableName, String secColumnNames, String secCondition, String secKeyColumn) {
if(!isComparatorRunning) {
isComparatorRunning = true;
Connection conn1 = DbConnectionRepository.getConnectionOne();
Connection conn2 = DbConnectionRepository.getConnectionTwo();
String query1 = buildQuery(primaryTableName, primaryColumnNames, primaryCondition, primaryKeyColumn);
String query2 = buildQuery(secTableName, secColumnNames, secCondition, secKeyColumn);
try {
Map<String,Map<String, Object>> query1Data = executeAndRefactorData(conn1, query1, primaryKeyColumn);
Map<String,Map<String, Object>> query2Data = executeAndRefactorData(conn2, query2, secKeyColumn);
for(Map.Entry<String,Map<String, Object>> entry : query1Data.entrySet()) {
String key = entry.getKey();
Map<String, Object> value = entry.getValue();
Map<String, Object> secondaryValue = query2Data.remove(key);
if(secondaryValue == null) {
ComparatorUtil.publishColumnValuesInfoOutput("NO SUCH VALUE AVAILABLE IN SECONDARY DB "+ value.toString());
continue;
}
compareMap(value, secondaryValue, key);
}
if(!query2Data.isEmpty()) {
ComparatorUtil.publishColumnValuesInfoOutput("Extra Values in Secondary table "+ ((Map)query2Data.values()).values().toString());
}
} catch (Exception e) {
ComparatorUtil.publishColumnValuesInfoOutput("ERROR"+e.getMessage());
}
isComparatorRunning = false;
}
}
private void compareMap(Map<String, Object> primaryValues, Map<String, Object> secondaryValues, String columnIdentification) {
for(Map.Entry<String, Object> entry : primaryValues.entrySet()) {
String key = entry.getKey();
Object value = entry.getValue();
Object secValue = secondaryValues.get(key);
if(value!=null && secValue!=null && !String.valueOf(value).equalsIgnoreCase(String.valueOf(secValue))) {
ComparatorUtil.publishColumnValuesInfoOutput(columnIdentification+" : Secondary Table does not match value ("+ value +") for column ("+ key+")");
}
if(value==null && secValue!=null) {
ComparatorUtil.publishColumnValuesInfoOutput(columnIdentification+" : Values not available in primary table for column "+ key);
}
if(value!=null && secValue==null) {
ComparatorUtil.publishColumnValuesInfoOutput(columnIdentification+" : Values not available in Secondary table for column "+ key);
}
}
}
private String buildQuery(String tableName, String column, String condition, String keyCol) {
if(!"*".equalsIgnoreCase(column)) {
String[] keyColArr = keyCol.split(",");
for(String key: keyColArr) {
if(!column.contains(key.trim())) {
column+=","+key.trim();
}
}
}
StringBuilder queryBuilder = new StringBuilder();
queryBuilder.append("select "+column+" from "+ tableName);
if(!ComparatorUtil.isNullorEmpty(condition)) {
queryBuilder.append(" where 1=1 and "+condition);
}
return queryBuilder.toString();
}
private Map<String,Map<String, Object>> executeAndRefactorData(Connection connection, String query, String keyColumn) {
Map<String,Map<String, Object>> result = new HashMap<String, Map<String,Object>>();
try {
PreparedStatement preparedStatement = connection.prepareStatement(query);
ResultSet resultSet = preparedStatement.executeQuery();
resultSet.setFetchSize(1000);
if (resultSet != null && !resultSet.isClosed()) {
while (resultSet.next()) {
Map<String, Object> columnValueDetails = new HashMap<String, Object>();
int columnCount = resultSet.getMetaData().getColumnCount();
for (int i=1; i<=columnCount; i++) {
String columnName = String.valueOf(resultSet.getMetaData().getColumnName(i));
Object columnValue = resultSet.getObject(columnName);
columnValueDetails.put(columnName, columnValue);
}
String[] keys = keyColumn.split(",");
String newKey = "";
for(int j=0; j<keys.length; j++) {
newKey += String.valueOf(columnValueDetails.get(keys[j]));
}
result.put(newKey , columnValueDetails);
}
}
} catch (SQLException e) {
ComparatorUtil.publishColumnValuesInfoOutput("ERROR"+e.getMessage());
}
return result;
}
}
Utility Tool for the same
public class ComparatorUtil {
public static Map<String, String> getSchemaTableMap(String tableNameWithSchema) {
if(isNullorEmpty(tableNameWithSchema)) {
return null;
}
Map<String, String> result = new LinkedHashMap<>();
int index = tableNameWithSchema.indexOf(".");
String schemaName = tableNameWithSchema.substring(0, index);
String tableName = tableNameWithSchema.substring(index+1);
result.put(CompConstants.SCHEMA_NAME, schemaName);
result.put(CompConstants.TABLE_NAME, tableName);
return result;
}
public static Map<String, ColumnInfo> getColumnMetadataMap(Connection conn, Map<String, String> schemaTableMap) {
try {
String schemaName = schemaTableMap.get(CompConstants.SCHEMA_NAME);
String tableName = schemaTableMap.get(CompConstants.TABLE_NAME);
ResultSet resultSetConnOne = conn.getMetaData().getColumns(null, schemaName, tableName, null);
Map<String, ColumnInfo> resultSetTwoColInfo = getColumnInfo(schemaName, tableName, resultSetConnOne);
return resultSetTwoColInfo;
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
/* Number Type mapping
* 12-----VARCHAR
* 3-----DECIMAL
* 93-----TIMESTAMP
* 1111-----OTHER
*/
public static Map<String, ColumnInfo> getColumnInfo(String schemaName, String tableName, ResultSet columns) {
try {
Map<String, ColumnInfo> tableColumnInfo = new LinkedHashMap<String, ColumnInfo>();
while (columns.next()) {
ColumnInfo columnInfo = new ColumnInfo();
columnInfo.setSchemaName(schemaName);
columnInfo.setTableName(tableName);
columnInfo.setColumnName(columns.getString("COLUMN_NAME"));
columnInfo.setDatatype(columns.getString("DATA_TYPE"));
columnInfo.setColumnsize(columns.getString("COLUMN_SIZE"));
columnInfo.setDecimaldigits(columns.getString("DECIMAL_DIGITS"));
columnInfo.setIsNullable(columns.getString("IS_NULLABLE"));
tableColumnInfo.put(columnInfo.getColumnName(), columnInfo);
}
return tableColumnInfo;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static boolean isNullOrEmpty(Object obj) {
if (obj == null)
return true;
if (String.valueOf(obj).equalsIgnoreCase("NULL"))
return true;
if (obj.toString().trim().length() == 0)
return true;
return false;
}
public static boolean isNullorEmpty(String str) {
if(str == null)
return true;
if(str.trim().length() == 0)
return true;
return false;
}
public static void publishColumnInfoOutput(String type, ColumnInfo columnInfo) {
String str = "ALTER TABLE "+columnInfo.getSchemaName()+"."+columnInfo.getTableName();
switch(type.toUpperCase()) {
case "ALTER":
if("NUMBER".equalsIgnoreCase(columnInfo.getDatatype()) || "DATE".equalsIgnoreCase(columnInfo.getDatatype())) {
str += " ADD ("+columnInfo.getColumnName()+" "+ columnInfo.getDatatype()+");";
} else {
str += " ADD ("+columnInfo.getColumnName()+" "+ columnInfo.getDatatype() +"("+columnInfo.getColumnsize()+"));";
}
break;
case "DROP":
str += " DROP ("+columnInfo.getColumnName()+");";
break;
case "MODIFY":
if("NUMBER".equalsIgnoreCase(columnInfo.getDatatype()) || "DATE".equalsIgnoreCase(columnInfo.getDatatype())) {
str += " MODIFY ("+columnInfo.getColumnName()+" "+ columnInfo.getDatatype()+");";
} else {
str += " MODIFY ("+columnInfo.getColumnName()+" "+ columnInfo.getDatatype() +"("+columnInfo.getColumnsize()+"));";
}
break;
}
publishColumnInfoOutput(str);
}
public static Map<Integer, String> allJdbcTypeName = null;
public static Map<Integer, String> getAllJdbcTypeNames() {
Map<Integer, String> result = new HashMap<Integer, String>();
if(allJdbcTypeName != null)
return allJdbcTypeName;
try {
for (Field field : java.sql.Types.class.getFields()) {
result.put((Integer) field.get(null), field.getName());
}
} catch (Exception e) {
e.printStackTrace();
}
return allJdbcTypeName=result;
}
public static String getStringPlaces(String[] attribs) {
String params = "";
for(int i=0; i<attribs.length; i++) { params += "?,"; }
return params.substring(0, params.length()-1);
}
}
Column Info Class
public class ColumnInfo {
private String schemaName;
private String tableName;
private String columnName;
private String datatype;
private String columnsize;
private String decimaldigits;
private String isNullable;
This is working for me (i use laravel 5.6).
$collection = MyModel::all()->groupBy('column');
If you want to convert the collection to plain php array, you can use toArray()
$array = MyModel::all()->groupBy('column')->toArray();
Your port must be busy in some Other Process. So you can download TCPView on https://technet.microsoft.com/en-us/sysinternals/bb897437 and kill the process for used port.
If you don't know your port, double click on the server that is not starting and click on Open Server Properties Page and click on glassfish from left column. You will find the ports here.
Well any Javascript object functions sort-of like a "map"
randomObject['hello'] = 'world';
Typically people build simple objects for the purpose:
var myMap = {};
// ...
myMap[newKey] = newValue;
edit — well the problem with having an explicit "put" function is that you'd then have to go to pains to avoid having the function itself look like part of the map. It's not really a Javascripty thing to do.
13 Feb 2014 — modern JavaScript has facilities for creating object properties that aren't enumerable, and it's pretty easy to do. However, it's still the case that a "put" property, enumerable or not, would claim the property name "put" and make it unavailable. That is, there's still only one namespace per object.
Use:
DefaultTableModel model = new DefaultTableModel();
JTable table = new JTable(model);
// Create a couple of columns
model.addColumn("Col1");
model.addColumn("Col2");
// Append a row
model.addRow(new Object[]{"v1", "v2"});
Generally, labels and textboxes that appear in front of an image is best organized in a panel. When rendering, if labels need to be transparent to an image within the panel, you can switch to image as parent of labels in Form initiation like this:
var oldParent = panel1;
var newParent = pictureBox1;
foreach (var label in oldParent.Controls.OfType<Label>())
{
label.Location = newParent.PointToClient(label.Parent.PointToScreen(label.Location));
label.Parent = newParent;
label.BackColor = Color.Transparent;
}
The very concept of a "proper" way to do anything, apart from using CPAN, is non existent in Perl.
Anyways those are numeric operators, you should use
if($foo eq "")
or
if(length($foo) == 0)
The two really aren't similar. static
fields are fields that do not belong to any particular instance of a class.
class C {
public static int n = 42;
}
Here, the static
field n
isn't associated with any particular instance of C
but with the entire class in general (which is why C.n
can be used to access it). Can you still use an instance of C
to access n
? Yes - but it isn't considered particularly good practice.
final
on the other hand indicates that a particular variable cannot change after it is initialized.
class C {
public final int n = 42;
}
Here, n
cannot be re-assigned because it is final
. One other difference is that any variable can be declared final
, while not every variable can be declared static.
Also, classes can be declared final
which indicates that they cannot be extended:
final class C {}
class B extends C {} // error!
Similarly, methods can be declared final to indicate that they cannot be overriden by an extending class:
class C {
public final void foo() {}
}
class B extends C {
public void foo() {} // error!
}
It is time to use agg
instead of apply
.
When
df = pd.DataFrame( {'a':['A','A','B','B','B','C'], 'b':[1,2,5,5,4,6], 'c': [1,2,5,5,4,6]})
If you want multiple columns stack into list , result in pd.DataFrame
df.groupby('a')[['b', 'c']].agg(list)
# or
df.groupby('a').agg(list)
If you want single column in list, result in ps.Series
df.groupby('a')['b'].agg(list)
#or
df.groupby('a')['b'].apply(list)
Note, result in pd.DataFrame
is about 10x slower than result in ps.Series
when you only aggregate single column, use it in multicolumns case .
Maybe change the number input with javascript to text input when you don't want a spinner;
document.getElementById('myinput').type = 'text';
and stop the user entering text;
document.getElementById('myinput').onkeydown = function(e) {
if(!((e.keyCode > 95 && e.keyCode < 106)
|| (e.keyCode > 47 && e.keyCode < 58)
|| e.keyCode == 8
|| e.keyCode == 9)) {
return false;
}
}
then have the javascript change it back in case you do want a spinner;
document.getElementById('myinput').type = 'number';
it worked well for my purposes
Programmatically, the following currently works. I see all the answers post 10.0 and all, but none of them are the correct path for me. Within Kaggle for sure, this apporach works
from pip._internal import main as _main
package_names=['pandas'] #packages to install
_main(['install'] + package_names + ['--upgrade'])
In AppDelegate
:
func application(application: UIApplication, supportedInterfaceOrientationsForWindow window: UIWindow?) -> UIInterfaceOrientationMask {
if let topController = UIViewController.topMostViewController() {
if topController is XXViewController {
return [.Portrait, .LandscapeLeft]
}
}
return [.Portrait]
}
XXViewController
is the ViewController you want to support Landscape mode.
Then Sunny Shah's solution would work in your XXViewController
on any iOS version:
let value = UIInterfaceOrientation.LandscapeLeft.rawValue
UIDevice.currentDevice().setValue(value, forKey: "orientation")
This is the utility function to find the top most ViewController.
extension UIViewController {
/// Returns the current application's top most view controller.
public class func topMostViewController() -> UIViewController? {
let rootViewController = UIApplication.sharedApplication().windows.first?.rootViewController
return self.topMostViewControllerOfViewController(rootViewController)
}
/// Returns the top most view controller from given view controller's stack.
class func topMostViewControllerOfViewController(viewController: UIViewController?) -> UIViewController? {
// UITabBarController
if let tabBarController = viewController as? UITabBarController,
let selectedViewController = tabBarController.selectedViewController {
return self.topMostViewControllerOfViewController(selectedViewController)
}
// UINavigationController
if let navigationController = viewController as? UINavigationController,
let visibleViewController = navigationController.visibleViewController {
return self.topMostViewControllerOfViewController(visibleViewController)
}
// presented view controller
if let presentedViewController = viewController?.presentedViewController {
return self.topMostViewControllerOfViewController(presentedViewController)
}
// child view controller
for subview in viewController?.view?.subviews ?? [] {
if let childViewController = subview.nextResponder() as? UIViewController {
return self.topMostViewControllerOfViewController(childViewController)
}
}
return viewController
}
}
The recommended way is to let str.format
handle the casting (docs). Methods with %s
substitution may be deprecated eventually (see PEP3101).
>>> answer = True
>>> myvar = "the answer is {}".format(answer)
>>> print(myvar)
the answer is True
In Python 3.6+ you may use literal string interpolation:
>>> print(f"the answer is {answer}")
the answer is True
Before sometime I also had the same problem. I have tried replacing the .dll
file but no result. After some debugging I found the solution.
I had this in my php.ini
file:
extension_dir = "ext"
And I'm getting mbstring extension missing
error. So I tried putting the full path for the extension directory and it works for me. like:
extension_dir = "C:\php\ext"
Hope this will help.
Cheers,
I have this issue in SOAP-UI and no one solution above dont helped me.
Proper solution for me was to add
-Dsoapui.sslcontext.algorithm=TLSv1
in vmoptions file (in my case it was ...\SoapUI-5.4.0\bin\SoapUI-5.4.0.vmoptions)
This solution makes only one selection from YourTable, therefore it's faster. It works only for MySQL and SQLite(for SQLite remove DESC) according to test on sqlfiddle.com. Maybe it can be tweaked to work on other languages which I am not familiar with.
SELECT *
FROM ( SELECT *
FROM ( SELECT 1 as id, 1 as rev, 'content1' as content
UNION
SELECT 2, 1, 'content2'
UNION
SELECT 1, 2, 'content3'
UNION
SELECT 1, 3, 'content4'
) as YourTable
ORDER BY id, rev DESC
) as YourTable
GROUP BY id
-- Search in All Objects
SELECT OBJECT_NAME(OBJECT_ID),
definition
FROM sys.sql_modules
WHERE definition LIKE '%' + 'ColumnName' + '%'
GO
-- Search in Stored Procedure Only
SELECT DISTINCT OBJECT_NAME(OBJECT_ID)
FROM sys.Procedures
WHERE object_definition(OBJECT_ID) LIKE '%' + 'ColumnName' + '%'
GO
In the v-model the value of the property might not be a strict boolean value and the checkbox might not 'recognise' the value as checked/unchecked. There is a neat feature in VueJS to make the conversion to true or false:
<input
type="checkbox"
v-model="toggle"
true-value="yes"
false-value="no"
>
If you are using an SQL script when you are creating your database and have any users created by your script, you need to drop them too. Lastly you need to flush the users; i.e., force MySQL to read the user's privileges again.
-- DELETE ALL RECIPE
drop schema <database_name>;
-- Same as `drop database <database_name>`
drop user <a_user_name>;
-- You may need to add a hostname e.g `drop user bob@localhost`
FLUSH PRIVILEGES;
Good luck!
What you asked for is:
IF OBJECT_ID('tempdb..##CLIENTS_KEYWORD') IS NOT NULL
BEGIN
DROP TABLE ##CLIENTS_KEYWORD
CREATE TABLE ##CLIENTS_KEYWORD(client_id int)
END
ELSE
CREATE TABLE ##CLIENTS_KEYWORD(client_id int)
IF OBJECT_ID('tempdb..##TEMP_CLIENTS_KEYWORD') IS NOT NULL
BEGIN
DROP TABLE ##TEMP_CLIENTS_KEYWORD
CREATE TABLE ##TEMP_CLIENTS_KEYWORD(client_id int)
END
ELSE
CREATE TABLE ##TEMP_CLIENTS_KEYWORD(client_id int)
Since you're always going to create the table, regardless of whether the table is deleted or not; a slightly optimised solution is:
IF OBJECT_ID('tempdb..##CLIENTS_KEYWORD') IS NOT NULL
DROP TABLE ##CLIENTS_KEYWORD
CREATE TABLE ##CLIENTS_KEYWORD(client_id int)
IF OBJECT_ID('tempdb..##TEMP_CLIENTS_KEYWORD') IS NOT NULL
DROP TABLE ##TEMP_CLIENTS_KEYWORD
CREATE TABLE ##TEMP_CLIENTS_KEYWORD(client_id int)
fn + leftArraw or fn + rightArrow
worked for me!
Unfortunately, all of your assumptions seem correct, and I don't think there's a way to do this. In order to save battery life, the iPhone's location services are based on movement. If the phone sits in one spot, it's invisible to location services.
The CLLocationManager
will only call locationManager:didUpdateToLocation:fromLocation:
when the phone receives a location update, which only happens if one of the three location services (cell tower, gps, wifi) perceives a change.
A few other things that might help inform further solutions:
Starting & Stopping the services causes the didUpdateToLocation
delegate method to be called, but the newLocation
might have an old timestamp.
When running in the background, be aware that it may be difficult to get "full" LocationServices support approved by Apple. From what I've seen, they've specifically designed startMonitoringSignificantLocationChanges
as a low power alternative for apps that need background location support, and strongly encourage developers to use this unless the app absolutely needs it.
Good Luck!
UPDATE: These thoughts may be out of date by now. Looks as though people are having success with @wjans answer, above.
There is the index
method, i = array.index(value)
, but I don't think you can specify a custom comparison operator. It wouldn't be hard to write your own function to do so, though:
def custom_index(array, compare_function):
for i, v in enumerate(array):
if compare_function(v):
return i
The error happens because MySQL can index only the first N chars of a BLOB or TEXT
column. So The error mainly happens when there is a field/column type of TEXT
or BLOB or those belong to TEXT
or BLOB
types such as TINYBLOB
, MEDIUMBLOB
, LONGBLOB
, TINYTEXT
, MEDIUMTEXT
, and LONGTEXT
that you try to make a primary key or index. With full BLOB
or TEXT
without the length value, MySQL is unable to guarantee the uniqueness of the column as it’s of variable and dynamic size. So, when using BLOB
or TEXT
types as an index, the value of N must be supplied so that MySQL can determine the key length. However, MySQL doesn’t support a key length limit on TEXT
or BLOB
. TEXT(88)
simply won’t work.
The error will also pop up when you try to convert a table column from non-TEXT
and non-BLOB
type such as VARCHAR
and ENUM
into TEXT
or BLOB
type, with the column already been defined as unique constraints or index. The Alter Table SQL command will fail.
The solution to the problem is to remove the TEXT
or BLOB
column from the index or unique constraint or set another field as primary key. If you can't do that, and wanting to place a limit on the TEXT
or BLOB
column, try to use VARCHAR
type and place a limit of length on it. By default, VARCHAR
is limited to a maximum of 255 characters and its limit must be specified implicitly within a bracket right after its declaration, i.e VARCHAR(200)
will limit it to 200 characters long only.
Sometimes, even though you don’t use TEXT
or BLOB
related type in your table, the Error 1170 may also appear. It happens in a situation such as when you specify VARCHAR
column as primary key, but wrongly set its length or characters size. VARCHAR
can only accepts up to 256 characters, so anything such as VARCHAR(512)
will force MySQL to auto-convert the VARCHAR(512)
to a SMALLTEXT
datatype, which subsequently fails with error 1170 on key length if the column is used as primary key or unique or non-unique index. To solve this problem, specify a figure less than 256 as the size for VARCHAR
field.
Reference: MySQL Error 1170 (42000): BLOB/TEXT Column Used in Key Specification Without a Key Length
I found the similar problem and found the solution and i have blogged about how to upload the file using JSP , In that example i have used the absolute path. Note that if you want to route to some other URL based location you can put a ESB like WSO2 ESB
mysql> SET PASSWORD = PASSWORD('your_new_password');
That works for me.
I was looking for something and I found this post. I post this code that managed many-to-many relationships in case someone needs it.
var UserInRole = db.UsersInRoles.Include(u => u.UserProfile).Include(u => u.Roles)
.Select (m => new
{
UserName = u.UserProfile.UserName,
RoleName = u.Roles.RoleName
});
try this
df.rename(columns={ df.columns[1]: "your value" }, inplace = True)
This could also be done using display: flex
with only a few lines of code. Here is an example:
.container {
width: 100px;
height: 100px;
display: flex;
align-items: center;
}
Your post contains several questions, so I'll try to answer them one at a time:
Although the documentation is a little hard to find (likely due to all the name changes), the PA API is very well documented and rather elegant. With a modicum of elbow grease and some previous experience in calling out to web services, you shouldn't have any trouble getting the information you need from the API.
An abstract class would be used when some common implementation was required. An interface would be if you just want to specify a contract that parts of the program have to conform too. By implementing an interface you are guaranteeing that you will implement certain methods. By extending an abstract class you are inheriting some of it's implementation. Therefore an interface is just an abstract class with no methods implemented (all are pure virtual).
Deleting .idea/workspace.xml
worked for me. Close the project, delete .idea/workspace.xml
, and open the project again. I was using version 2019.1.
match_parent is used in place of fill_parent and sets it to go as far as the parent goes. Just use match_parent and forget about fill_parent. I completely ditched fill_parent and everything is perfect as usual.
Check here for more.
Whenever you use
export someobject
and someobject is
{
"prop1":"Property1",
"prop2":"Property2",
}
the above you can import anywhere using import
or module.js
and there you can use someobject. This is not a restriction that someobject will be an object only it can be a function too, a class or an object.
When you say
new Object()
like you said
new Vue({
el: '#app',
data: []
)}
Here you are initiating an object of class Vue.
I hope my answer explains your query in general and more explicitly.
function ArrayToObject( arr ) {
var obj = {};
for (var i = 0; i < arr.length; ++i){
var name = arr[i].name;
var value = arr[i].value;
obj[name] = arr[i].value;
}
return obj;
}
var form_data = $('#my_form').serializeArray();
form_data = ArrayToObject( form_data );
form_data.action = event.target.id;
form_data.target = event.target.dataset.event;
console.log( form_data );
$.post("/api/v1/control/", form_data, function( response ){
console.log(response);
}).done(function( response ) {
$('#message_box').html('SUCCESS');
})
.fail(function( ) { $('#message_box').html('FAIL'); })
.always(function( ) { /*$('#message_box').html('SUCCESS');*/ });
Real power comes with understanding and implementation membership provider together with role provider. You can assign users into roles and according to that restriction you can apply different access roles for different user to controller actions or controller itself.
[Authorize(Users = "Betty, Johnny")]
public ActionResult SpecificUserOnly()
{
return View();
}
or you can restrict according to group
[Authorize(Roles = "Admin, Super User")]
public ActionResult AdministratorsOnly()
{
return View();
}
This situation calls for some preprocessor. Because if you write a function (static method) which picks the first not null value, it evaluates all items. It is problem if some items are method calls (may be time expensive method calls). And this methods are called even if any item before them is not null.
Some function like this
public static <T> T coalesce(T ...items) …
should be used but before compiling into byte code there should be a preprocessor which find usages of this „coalesce function“ and replaces it with construction like
a != null ? a : (b != null ? b : c)
Update 2014-09-02:
Thanks to Java 8 and Lambdas there is possibility to have true coalesce in Java! Including the crucial feature: particular expressions are evaluated only when needed – if earlier one is not null, then following ones are not evaluated (methods are not called, computation or disk/network operations are not done).
I wrote an article about it Java 8: coalesce – hledáme neNULLové hodnoty – (written in Czech, but I hope that code examples are understandable for everyone).
contents = open(filename)
This gives you generator so you must save somewhere the values though, or
contents = [line for line in open(filename)]
This does the saving to list explicit close is not then possible (at least with my knowledge of Python).
I guess the quickest way is just to disable the domain check while you're developing it
#!/bin/bash
logPath="pinglog.txt"
while(true)
do
# refresh the timestamp before each ping attempt
theTime=$(date -Iseconds)
# refresh the ping variable
ping google.com -n 1
if [ $? -eq 0 ]
then
echo $theTime + '| connection is up' >> $logPath
else
echo $theTime + '| connection is down' >> $logPath
fi
Sleep 1
echo ' '
done
Two ways of dealing with it
div
inside tbody
tagdiv
inside tr
tagBoth approaches are valid, if you see feference: https://stackoverflow.com/a/23440419/2305243
L = ['apple','red','apple','red','red','pear']
d = {}
[d.__setitem__(item,1+d.get(item,0)) for item in L]
print d
Gives {'pear': 1, 'apple': 2, 'red': 3}
I tried some of the suggestions here and I would like to present mine (which is a bit different) - I hope it will help someone. I wanted to show the popup on first click and hide it on second click (of course with updating the data each time).
I used an extra variable visable
to know whether the popover is visable or not.
Here is my code:
HTML:
<button type="button" id="votingTableButton" class="btn btn-info btn-xs" data-container="body" data-toggle="popover" data-placement="left" >Last Votes</button>
Javascript:
$('#votingTableButton').data("visible",false);
$('#votingTableButton').click(function() {
if ($('#votingTableButton').data("visible")) {
$('#votingTableButton').popover("hide");
$('#votingTableButton').data("visible",false);
}
else {
$.get('votingTable.json', function(data) {
var content = generateTableContent(data);
$('#votingTableButton').popover('destroy');
$('#votingTableButton').popover({title: 'Last Votes',
content: content,
trigger: 'manual',
html:true});
$('#votingTableButton').popover("show");
$('#votingTableButton').data("visible",true);
});
}
});
Cheers!
I had the same problem and I did it this way
//note that I added jquery separately above this
<!--ENJOY HINT PACKAGES --START -->
<link href="path/enjoyhint/jquery.enjoyhint.css" rel="stylesheet">
<script src="path/enjoyhint/jquery.enjoyhint.js"></script>
<script src="path/enjoyhint/kinetic.min.js"></script>
<script src="path/enjoyhint/enjoyhint.js"></script>
<!--ENJOY HINT PACKAGES --END -->
and it works
There seem to be some js libraries that can handle .docx (not .doc) to html conversion client-side (in no particular order):
https://github.com/lalalic/docx2html — docx to html, most elements are supported
https://github.com/mwilliamson/mammoth.js — supports headings, lists, tables, endnotes, footnotes, images and text boxes
https://www.npmjs.com/package/docx2html — Converts DOCX documents to HTML in the browser or nodejs
https://github.com/artburkart/docx2html — apparently, works in the browser
Note: If you are looking for the best way to convert a doc/docx file on the client side, then probably the answer is don't do it. If you really need to do it then do it server-side, i.e. with libreoffice in headless mode, apache-poi (java), pandoc or whatever other library works best for you.
This is from antiquated technology: The old fashion typewriter style of printer. There was a roller (platen) that advanced the paper and a print head that hammered a metal key against an ink fabric.
\r Return the print head to the left side.
\n Advance the platen one line.
If the \n was not issued, you would type over what was on a line (used mostly for underlining text).
I got this problem when my Azure service was immediately trying to get a secret from Azure KeyVault and I had forgotten to give the service permission by KeyVault.
Aria is used to improve the user experience of visually impaired users. Visually impaired users navigate though application using screen reader software like JAWS, NVDA,.. While navigating through the application, screen reader software announces content to users. Aria can be used to add content in the code which helps screen reader users understand role, state, label and purpose of the control
Aria does not change anything visually. (Aria is scared of designers too).
aria-hidden:
aria-hidden attribute is used to hide content for visually impaired users who navigate through application using screen readers (JAWS, NVDA,...).
aria-hidden attribute is used with values true, false.
How To Use:
<i class = "fa fa-books" aria-hidden = "true"></i>
using aria-hidden = "true" on the <i>
hides content to screen reader users with no visual change in the application.
aria-label
aria-label attribute is used to communicate the label to screen reader users. Usually search input field does not have visual label (thanks to designers). aria-label can be used to communicate the label of control to screen reader users
How To Use:
<input type = "edit" aria-label = "search" placeholder = "search">
There is no visual change in application. But screen readers can understand the purpose of control
aria-labelledby
Both aria-label and aria-labelledby is used to communicate the label. But aria-labelledby can be used to reference any label already present in the page whereas aria-label is used to communicate the label which i not displayed visually
Approach 1:
<span id = "sd"> Search </span>
<input type = "text" aria-labelledby = "sd">
aria-labelledby can also be used to combine two labels for screen reader users
Approach 2:
<span id = "de"> Billing Address </span>
<span id = "sd"> First Name </span>
<input type = "text" aria-labelledby = "de sd">
You might also need to provide your user with an alert showing that those functions are disabled for the text input fields. This will work
function showError(){_x000D_
alert('you are not allowed to cut,copy or paste here');_x000D_
}_x000D_
_x000D_
$('.form-control').bind("cut copy paste",function(e) {_x000D_
e.preventDefault();_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<textarea class="form-control" oncopy="showError()" onpaste="showError()"></textarea>
_x000D_
What about doing it this way
strgroupids = string.Join( ",", groupIds );
A lot cleaner.
It will append all elements inside groupIds
with a ','
between each, but it will not put a ','
at the end.
I had an issue for integers while wanting consistent formatting.
A rewrite for completeness:
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
// floating point formatting example
cout << fixed << setprecision(2) << 122.345 << endl;
// Output: 122.34
// integer formatting example
cout << fixed << setprecision(2) << double(122) << endl;
// Output: 122.00
}
Have a look at insertAdjacentHTML
var element = document.getElementById("one");
var newElement = '<div id="two">two</div>'
element.insertAdjacentHTML( 'afterend', newElement )
// new DOM structure: <div id="one">one</div><div id="two">two</div>
position is the position relative to the element you are inserting adjacent to:
'beforebegin' Before the element itself
'afterbegin' Just inside the element, before its first child
'beforeend' Just inside the element, after its last child
'afterend' After the element itself
You can use a simple regex (updated version from user viriathus as eregi
is deprecated)
if (preg_match('#^http#', $url) === 1) {
// Starts with http (case sensitive).
}
or if you want a case insensitive search
if (preg_match('#^http#i', $url) === 1) {
// Starts with http (case insensitive).
}
Regexes allow to perform more complex tasks
if (preg_match('#^https?://#i', $url) === 1) {
// Starts with http:// or https:// (case insensitive).
}
Performance wise, you don't need to create a new string (unlike with substr) nor parse the whole string if it doesn't start with what you want. You will have a performance penalty though the 1st time you use the regex (you need to create/compile it).
This extension maintains a global per-thread cache of compiled regular expressions (up to 4096). http://www.php.net/manual/en/intro.pcre.php
You can use
slack://
in order to open the Slack desktop application. For example, on mac, I've run:
open slack://
from the terminal and it opens the Mac desktop Slack application. Still, I didn't figure out the URL that should be used for opening a certain team, channel or message.
Here's an example you can run as a batch script (copy-paste into a .bat file), using the SQLCMD utility in Sql Server client tools:
BACKUP:
echo off
cls
echo -- BACKUP DATABASE --
set /p DATABASENAME=Enter database name:
:: filename format Name-Date (eg MyDatabase-2009.5.19.bak)
set DATESTAMP=%DATE:~-4%.%DATE:~7,2%.%DATE:~4,2%
set BACKUPFILENAME=%CD%\%DATABASENAME%-%DATESTAMP%.bak
set SERVERNAME=your server name here
echo.
sqlcmd -E -S %SERVERNAME% -d master -Q "BACKUP DATABASE [%DATABASENAME%] TO DISK = N'%BACKUPFILENAME%' WITH INIT , NOUNLOAD , NAME = N'%DATABASENAME% backup', NOSKIP , STATS = 10, NOFORMAT"
echo.
pause
RESTORE:
echo off
cls
echo -- RESTORE DATABASE --
set /p BACKUPFILENAME=Enter backup file name:%CD%\
set /p DATABASENAME=Enter database name:
set SERVERNAME=your server name here
sqlcmd -E -S %SERVERNAME% -d master -Q "ALTER DATABASE [%DATABASENAME%] SET SINGLE_USER WITH ROLLBACK IMMEDIATE"
:: WARNING - delete the database, suits me
:: sqlcmd -E -S %SERVERNAME% -d master -Q "IF EXISTS (SELECT * FROM sysdatabases WHERE name=N'%DATABASENAME%' ) DROP DATABASE [%DATABASENAME%]"
:: sqlcmd -E -S %SERVERNAME% -d master -Q "CREATE DATABASE [%DATABASENAME%]"
:: restore
sqlcmd -E -S %SERVERNAME% -d master -Q "RESTORE DATABASE [%DATABASENAME%] FROM DISK = N'%CD%\%BACKUPFILENAME%' WITH REPLACE"
:: remap user/login (http://msdn.microsoft.com/en-us/library/ms174378.aspx)
sqlcmd -E -S %SERVERNAME% -d %DATABASENAME% -Q "sp_change_users_login 'Update_One', 'login-name', 'user-name'"
sqlcmd -E -S %SERVERNAME% -d master -Q "ALTER DATABASE [%DATABASENAME%] SET MULTI_USER"
echo.
pause
I know it's late, but I thought it would be nice to clarify things: PyCharm and Conda and pip work well together.
Just manage Conda from the command line. PyCharm will automatically notice changes once they happen, just like it does with pip.
Create a new Conda environment:
conda create --name foo pandas bokeh
This environment lives under conda_root/envs/foo
. Your python interpreter is conda_root/envs/foo/bin/pythonX.X
and your all your site-packages are in conda_root/envs/foo/lib/pythonX.X/site-packages
. This is same directory structure as in a pip virtual environement. PyCharm sees no difference.
Now to activate your new environment from PyCharm go to file > settings > project > interpreter, select Add local in the project interpreter field (the little gear wheel) and hunt down your python interpreter. Congratulations! You now have a Conda environment with pandas and bokeh!
Now install more packages:
conda install scikit-learn
OK... go back to your interpreter in settings. Magically, PyCharm now sees scikit-learn!
And the reverse is also true, i.e. when you pip install another package in PyCharm, Conda will automatically notice. Say you've installed requests. Now list the Conda packages in your current environment:
conda list
The list now includes requests and Conda has correctly detected (3rd column) that it was installed with pip.
This is definitely good news for people like myself who are trying to get away from the pip/virtualenv installation problems when packages are not pure python.
NB: I run PyCharm pro edition 4.5.3 on Linux. For Windows users, replace in command line with in the GUI (and forward slashes with backslashes). There's no reason it shouldn't work for you too.
EDIT: PyCharm5 is out with Conda support! In the community edition too.
You have a number of choices:
TRUE
, FALSE
Boolean value.Use (as pointed in this answer)
SELECT CASE WHEN hide = 0 THEN FALSE ELSE TRUE END FROM
Or if Boolean is not supported:
SELECT CASE WHEN hide = 0 THEN 'false' ELSE 'true' END FROM
For integers I use this
function integer_or_null(value) {
if ((undefined === value) || (null === value)) {
return null;
}
if(value % 1 != 0) {
return null;
}
return value;
}
It seems like your problem may be arising at
while(in.read(outputByte,0,4096)!=-1){
where it might go into an infinite loop for not advancing the offset (which is 0 always in the call). Try
while(in.read(outputByte)!=-1){
which will by default try to read upto outputByte.length into the byte[]
. This way you dont have to worry about the offset. See FileInputStrem's read method
If you are sending multiple objects, it's often simplest to put them some kind of holder/collection like an Object[]
or List
. It saves you having to explicitly check for end of stream and takes care of transmitting explicitly how many objects are in the stream.
EDIT: Now that I formatted the code, I see you already have the messages in an array. Simply write the array to the object stream, and read the array on the server side.
Your "server read method" is only reading one object. If it is called multiple times, you will get an error since it is trying to open several object streams from the same input stream. This will not work, since all objects were written to the same object stream on the client side, so you have to mirror this arrangement on the server side. That is, use one object input stream and read multiple objects from that.
(The error you get is because the objectOutputStream writes a header, which is expected by objectIutputStream. As you are not writing multiple streams, but simply multiple objects, then the next objectInputStream created on the socket input fails to find a second header, and throws an exception.)
To fix it, create the objectInputStream when you accept the socket connection. Pass this objectInputStream to your server read method and read Object from that.
Add UITextFieldDelegate
to the class declaration:
class ViewController: UIViewController, UITextFieldDelegate
Connect the textfield
or write it programmatically
@IBOutlet weak var userText: UITextField!
set your view controller as the text fields delegate in view did load:
override func viewDidLoad() {
super.viewDidLoad()
self.userText.delegate = self
}
Add the following function
func textFieldShouldReturn(userText: UITextField!) -> Bool {
userText.resignFirstResponder()
return true;
}
with all this your keyboard will begin to dismiss by touching outside the textfield aswell as by pressing return key.
I came across this in PHP when using fopen()
on a file and then trying to unlink()
it before using fclose()
on it.
No good:
$handle = fopen('file.txt');
// do something
unlink('file.txt');
Good:
$handle = fopen('file.txt');
// do something
fclose($handle);
unlink('file.txt');
Php will evaluate what you wrote between the [] brackets.
$foo = array('eins', 'zwei', 'apples', 'oranges');
var_dump($foo[3-1]);
Will produce string(6) "apples"
, because it returns $foo[2].
If you want that as a string, put inverted commas around it.
Have you tried it?
If you do:
var HI = 'Hello World';
In global.js
. And then do:
alert(HI);
In js1.js
it will alert it fine. You just have to include global.js
prior to the rest in the HTML document.
The only catch is that you have to declare it in the window's scope (not inside any functions).
You could just nix the var
part and create them that way, but it's not good practice.
Similar to Ghommey's answer, but this also supports old versions of IE and Firefox.
window.onbeforeunload = function (e) {
var message = "Your confirmation message goes here.",
e = e || window.event;
// For IE and Firefox
if (e) {
e.returnValue = message;
}
// For Safari
return message;
};
As documented under CREATE TABLE
Syntax:
Note
The olderTYPE
option was synonymous withENGINE
.TYPE
was deprecated in MySQL 4.0 and removed in MySQL 5.5. When upgrading to MySQL 5.5 or later, you must convert existing applications that rely onTYPE
to useENGINE
instead.
Therefore, you want:
CREATE TABLE dave_bannedwords(
id INT(11) NOT NULL AUTO_INCREMENT,
word VARCHAR(60) NOT NULL DEFAULT '',
PRIMARY KEY (id),
KEY id(id) -- this is superfluous in the presence of your PK, ergo unnecessary
) ENGINE = MyISAM ;
A shorter answer from here, adapted to this question:
var arr = $('.requiredText');
arr.each(function(index, item) {
var is_last_item = (index == (arr.length - 1));
});
Just for completeness.
Actually, to query the team_name
, just add it in brackets to the last line. Apart from that, it seems to work on Python 2.7.3 on command line.
from urllib2 import urlopen
import json
url = 'http://openligadb-json.heroku.com/api/teams_by_league_saison?league_saison=2012&league_shortcut=bl1'
response = urlopen(url)
json_obj = json.load(response)
for i in json_obj['team']:
print i['team_name']
Simple row count is $(wc -l "$file")
. Use $(wc -lL "$file")
to show both the number of lines and the number of characters in the longest line.
Try this..
Download the Sqlite Manager jar file here.
Add it to your eclipse > dropins Directory.
Restart eclipse.
Launch the compatible emulator or device
Run your application.
Go to Window > Open Perspective > DDMS >
Choose the running device.
Go to File Explorer tab.
Select the directory called databases under your application's package.
Select the .db file under the database directory.
Then click Sqlite manager icon like this .
Now you're able to see the .db file.
Happy coding.....
@mani's Original answer is all you want, but if you'd also like to read it in official way, here's
https://router.vuejs.org/guide/essentials/history-mode.html#caveat
If you're using CloudFlare, you can just create a Page Rule to always use HTTPS: This will redirect every http:// request to https://
In addition to that, you would also have to add something like this to your \app\Providers\AppServiceProvider.php boot() function:
if (env('APP_ENV') === 'production' || env('APP_ENV') === 'dev') {
\URL::forceScheme('https');
}
This would ensure that every link / path in your app is using https:// instead of http://.
Two steps
Add below code in wp-config file
define('FS_METHOD', 'direct');
We need to give full permission to the folder like if server connected with SSH then paste below code in terminal and make sure you are inside on website folder and then run below code
sudo chmod -R 775 wp-content/plugins
or give full permission to website folder
sudo chown -R www-data:www-data website_folder
You can also directly query your DataFrame for this information.
rpt.query('STK_ID in (600809,600141,600329)')
Or similarly search for ranges:
rpt.query('60000 < STK_ID < 70000')
Using top: 40px
and bottom: 40px
(assuming your footer is also 40px) with no defined height, you can get this to work.
.header {
width: 100%;
height: 40px;
position: absolute;
top: 0;
background-color:red;
}
.mainBody {
width: 100%;
top: 40px;
bottom: 40px;
position: absolute;
background-color: gray;
}
.footer {
width: 100%;
height: 40px;
position: absolute;
bottom: 0;
background-color: blue;
}
Just write this your work get done
sudo rm /etc/nginx/sites-enabled/default
sudo service nginx restart
systemctl status nginx
Happy Learning
Below code will remove all punctuation marks as well as non alphabetic characters. Copied from their book.
http://www.nltk.org/book/ch01.html
import nltk
s = "I can't do this now, because I'm so tired. Please give me some time. @ sd 4 232"
words = nltk.word_tokenize(s)
words=[word.lower() for word in words if word.isalpha()]
print(words)
output
['i', 'ca', 'do', 'this', 'now', 'because', 'i', 'so', 'tired', 'please', 'give', 'me', 'some', 'time', 'sd']
In addition to the answers above, you can check the type of object using type(plt.subplots())
which returns a tuple, on the other hand, type(plt.subplot())
returns matplotlib.axes._subplots.AxesSubplot
which you can't unpack.
Public SUB test()
Dim mdate As Date
mdate = now()
MsgBox (Round(CDbl(mdate), 0))
End SUB
Take a look at this article which shows the registry keys you need to look for and provides a .NET library that will do this for you.
First, you should to determine if .NET 3.5 is installed by looking at HKLM\Software\Microsoft\NET Framework Setup\NDP\v3.5\Install, which is a DWORD value. If that value is present and set to 1, then that version of the Framework is installed.
Look at HKLM\Software\Microsoft\NET Framework Setup\NDP\v3.5\SP, which is a DWORD value which indicates the Service Pack level (where 0 is no service pack).
To be correct about things, you really need to ensure that .NET Fx 2.0 and .NET Fx 3.0 are installed first and then check to see if .NET 3.5 is installed. If all three are true, then you can check for the service pack level.
a recursive solution:
function thousands(amount) {
if( /\d{3}\d+/.test(amount) ) {
return thousands(amount.replace(/(\d{3}?)(,|$)/, ',$&'));
}
return amount;
}
another split solution:
function thousands (amount) {
return amount
// reverse string
.split('')
.reverse()
.join('')
// grouping starting by units
.replace(/\d{3}/g, '$&,')
// reverse string again
.split('')
.reverse()
.join('');
}