Here are few pointers/suggestions for investigation
vote
method which creates a fresh HTTP connection.HttpClient
instance to post to the server. This way it wont create too many connections from the client side. HttpClient
needs to be shut and hence call httpclient.getConnectionManager().shutdown();
to release the resources used by the connections. 2012-04-20 11:14:32.617:WARN:oejx.XmlParser:FATAL@file:/C:/Users/***/workspace/Test/WEB-INF/web.xml line:1 col:7 : org.xml.sax.SAXParseException: The processing instruction target matching "[xX][mM][lL]" is not allowed.
You Log says, that you web.xml is malformed. Line 1, colum 7. It may be a UTF-8 Byte-Order-Marker
Try to verify, that your xml is wellformed and does not have a BOM. Java doesn't use BOMs.
You use the available API of JTable
and do not try to mess with the colors.
Some selection methods are available directly on the JTable
(like the setRowSelectionInterval
). If you want to have access to all selection-related logic, the selection model is the place to start looking
Correct me if i'm wrong, but json is just text seperated by ":", so just use
String line = ""; //stores the text to parse.
StringTokenizer st = new StringTokenizer(line, ":");
String input1 = st.nextToken();
keep using st.nextToken() until you're out of data. Make sure to use "st.hasNextToken()" so you don't get a null exception.
If you need that each div will have its own toggle and don't want clicks to affect other divs, do this:
Here's what I did to solve this...
<div [ngClass]="{'teaser': !teaser_1 }" (click)="teaser_1=!teaser_1">
...content...
</div>
<div [ngClass]="{'teaser': !teaser_2 }" (click)="teaser_2=!teaser_2">
...content...
</div>
<div [ngClass]="{'teaser': !teaser_3 }" (click)="teaser_3=!teaser_3">
...content...
</div>
it requires custom numbering which sucks, but it works.
You can remove the whitespaces via css using white-space so you can keep your pretty HTML layout. Don't forget to set the white-space back to normal again if you want your text to wrap inside the columns.
Tested in IE9, Chrome 18, FF 12
.container { white-space: nowrap; }
.column { display: inline-block; width: 50%; white-space: normal; }
<div class="container">
<div class="column">text that can wrap</div>
<div class="column">text that can wrap</div>
</div>
The only things I can think of are
I have recently been using str_replace and setting text in the HTML portion like so
{{TEXT_TO_REPLACE}}
using file_get_contents() you can grab html data and then organise it how you like.
here is a demo
myReplacementCodeFunction(){
$text = '<img src="'.$row['name'].'" />';
$text .= "<div>".$row['name']."</div>";
$text .= "<div>".$row['title']."</div>";
$text .= "<div>".$row['description']."</div>";
$text .= "<div>".$row['link']."</div>";
$text .= "<br />";
return $text;
}
$htmlContents = file_get_contents("myhtmlfile.html");
$htmlContents = str_replace("{{TEXT_TO_REPLACE}}", myReplacementCodeFunction(), $htmlContents);
echo $htmlContents;
and now a demo html file:
<html>
<head>
<style type="text/css">
body{background:#666666;}
div{border:1px solid red;}
</style>
</head>
<body>
{{TEXT_TO_REPLACE}}
</body>
</html>
Use time.sleep()
from time import sleep
sleep(0.05)
You can do it server-side with nodejs.
Check out the popular Nodemailer package. There are plenty of transports and plugins for integrating with services like AWS SES and SendGrid!
The following example uses SES transport (Amazon SES):
let nodemailer = require("nodemailer");
let aws = require("aws-sdk");
let transporter = nodemailer.createTransport({
SES: new aws.SES({ apiVersion: "2010-12-01" })
});
I try to explain it more understandably than the referred PostgreSQL documentation.
Neither TIMESTAMP
variants store a time zone (or an offset), despite what the names suggest. The difference is in the interpretation of the stored data (and in the intended application), not in the storage format itself:
TIMESTAMP WITHOUT TIME ZONE
stores local date-time (aka. wall calendar date and wall clock time). Its time zone is unspecified as far as PostgreSQL can tell (though your application may knows what it is). Hence, PostgreSQL does no time zone related conversion on input or output. If the value was entered into the database as '2011-07-01 06:30:30'
, then no mater in what time zone you display it later, it will still say year 2011, month 07, day 01, 06 hours, 30 minutes, and 30 seconds (in some format). Also, any offset or time zone you specify in the input is ignored by PostgreSQL, so '2011-07-01 06:30:30+00'
and '2011-07-01 06:30:30+05'
are the same as just '2011-07-01 06:30:30'
.
For Java developers: it's analogous to java.time.LocalDateTime
.
TIMESTAMP WITH TIME ZONE
stores a point on the UTC time line. How it looks (how many hours, minutes, etc.) depends on your time zone, but it always refers to the same "physical" instant (like the moment of an actual physical event). The
input is internally converted to UTC, and that's how it's stored. For that, the offset of the input must be known, so when the input contains no explicit offset or time zone (like '2011-07-01 06:30:30'
) it's assumed to be in the current time zone of the PostgreSQL session, otherwise the explicitly specified offset or time zone is used (as in '2011-07-01 06:30:30+05'
). The output is displayed converted to the current time zone of the PostgreSQL session.
For Java developers: It's analogous to java.time.Instant
(with lower resolution though), but with JDBC and JPA 2.2 you are supposed to map it to java.time.OffsetDateTime
(or to java.util.Date
or java.sql.Timestamp
of course).
Some say that both TIMESTAMP
variations store UTC date-time. Kind of, but it's confusing to put it that way in my opinion. TIMESTAMP WITHOUT TIME ZONE
is stored like a TIMESTAMP WITH TIME ZONE
, which rendered with UTC time zone happens to give the same year, month, day, hours, minutes, seconds, and microseconds as they are in the local date-time. But it's not meant to represent the point on the time line that the UTC interpretation says, it's just the way the local date-time fields are encoded. (It's some cluster of dots on the time line, as the real time zone is not UTC; we don't know what it is.)
There are a couple of ways to solve this problem
Pyinx - a pretty lightweight tool that allows you to call Python from withing the excel process space http://code.google.com/p/pyinex/
I've used this one a few years ago (back when it was being actively developed) and it worked quite well
If you don't mind paying, this looks pretty good
https://datanitro.com/product.html
I've never used it though
Though if you are already writting in Python, maybe you could drop excel entirely and do everything in pure python? It's a lot easier to maintain one code base (python) rather than 2 (python + whatever excel overlay you have).
If you really have to output your data into excel there are even some pretty good tools for that in Python. If that may work better let me know and I'll get the links.
The user-agent
should be specified as a field in the header.
Here is a list of HTTP header fields, and you'd probably be interested in request-specific fields, which includes User-Agent
.
The simplest way to do what you want is to create a dictionary and specify your headers directly, like so:
import requests
url = 'SOME URL'
headers = {
'User-Agent': 'My User Agent 1.0',
'From': '[email protected]' # This is another valid field
}
response = requests.get(url, headers=headers)
Older versions of requests
clobbered default headers, so you'd want to do the following to preserve default headers and then add your own to them.
import requests
url = 'SOME URL'
# Get a copy of the default headers that requests would use
headers = requests.utils.default_headers()
# Update the headers with your custom ones
# You don't have to worry about case-sensitivity with
# the dictionary keys, because default_headers uses a custom
# CaseInsensitiveDict implementation within requests' source code.
headers.update(
{
'User-Agent': 'My User Agent 1.0',
}
)
response = requests.get(url, headers=headers)
No, browsers don't provide this formatting option.
You could probably fake it with some checkboxes with <label>
s, and JS to turn it into a fly out menu.
It seems to be a long-running framework process for debugging (to decrease load times?). I discovered that when you start your application twice from the debugger often the same vshost.exe process will be used. It just unloads all user-loaded DLLs first. This does odd things if you are fooling around with API hooks from managed processes.
The most upvoted answer can be improved.
Let me refer to GNU Make manual "Setting variables" and "Flavors", and add some comments.
The value you specify is installed verbatim; if it contains references to other variables, these references are expanded whenever this variable is substituted (in the course of expanding some other string). When this happens, it is called recursive expansion.
foo = $(bar)
The catch: foo
will be expanded to the value of $(bar)
each time foo
is evaluated, possibly resulting in different values. Surely you cannot call it "lazy"! This can surprise you if executed on midnight:
# This variable is haunted!
WHEN = $(shell date -I)
something:
touch $(WHEN).flag
# If this is executed on 00:00:00:000, $(WHEN) will have a different value!
something-else-later: something
test -f $(WHEN).flag || echo "Boo!"
VARIABLE := value
VARIABLE ::= value
Variables defined with ‘:=’ or ‘::=’ are simply expanded variables.
Simply expanded variables are defined by lines using ‘:=’ or ‘::=’ [...]. Both forms are equivalent in GNU make; however only the ‘::=’ form is described by the POSIX standard [...] 2012.
The value of a simply expanded variable is scanned once and for all, expanding any references to other variables and functions, when the variable is defined.
Not much to add. It's evaluated immediately, including recursive expansion of, well, recursively expanded variables.
The catch: If VARIABLE
refers to ANOTHER_VARIABLE
:
VARIABLE := $(ANOTHER_VARIABLE)-yohoho
and ANOTHER_VARIABLE
is not defined before this assignment, ANOTHER_VARIABLE
will expand to an empty value.
FOO ?= bar
is equivalent to
ifeq ($(origin FOO), undefined)
FOO = bar
endif
where $(origin FOO)
equals to undefined
only if the variable was not set at all.
The catch: if FOO
was set to an empty string, either in makefiles, shell environment, or command line overrides, it will not be assigned bar
.
VAR += bar
When the variable in question has not been defined before, ‘+=’ acts just like normal ‘=’: it defines a recursively-expanded variable. However, when there is a previous definition, exactly what ‘+=’ does depends on what flavor of variable you defined originally.
So, this will print foo bar
:
VAR = foo
# ... a mile of code
VAR += $(BAR)
BAR = bar
$(info $(VAR))
but this will print foo
:
VAR := foo
# ... a mile of code
VAR += $(BAR)
BAR = bar
$(info $(VAR))
The catch is that +=
behaves differently depending on what type of variable VAR
was assigned before.
The syntax to assign multiline value to a variable is:
define VAR_NAME :=
line
line
endef
or
define VAR_NAME =
line
line
endef
Assignment operator can be omitted, then it creates a recursively-expanded variable.
define VAR_NAME
line
line
endef
The last newline before endef
is removed.
HASH != printf '\043'
is the same as
HASH := $(shell printf '\043')
Don't use it. $(shell)
call is more readable, and the usage of both in a makefiles is highly discouraged. At least, $(shell)
follows Joel's advice and makes wrong code look obviously wrong.
I tried almost all of above but did not work for me ... The following did
word-break: break-all;
This to be added on the parent div (container of the table .)
SQL Server was not configured to allow mixed authentication.
Here are steps to fix:
Select the SQL Server and Windows Authentication mode radio button, and click OK.
Right-click on the SQL Server instance, select Restart (alternatively, open up Services and restart the SQL Server service).
This is also incredibly helpful for IBM Connections users, my wizards were not able to connect until I fxed this setting.
For MAC os user:
I have faced this issue many times. The key here is to set these environment variables before installing mysqlclient by pip command. For my case, they are like below:
export LDFLAGS="-L/usr/local/opt/[email protected]/lib"
export CPPFLAGS="-I/usr/local/opt/[email protected]/include"
CentOS is Linux, so as in just about all other Unix/Linux systems, you have the find
command. To search for files within the current directory:
find -name "filename"
You can also have wildcards inside the quotes, and not just a strict filename. You can also explicitly specify a directory to start searching from as the first argument to find:
find / -name "filename"
will look for "filename" or all the files that match the regex expression in between the quotes, starting from the root directory. You can also use single quotes instead of double quotes, but in most cases you don't need either one, so the above commands will work without any quotes as well. Also, for example, if you're searching for java files and you know they are somewhere in your /home/username, do:
find /home/username -name *.java
There are many more options to the find command and you should do a:
man find
to learn more about it.
One more thing: if you start searching from / and are not root or are not sudo running the command, you might get warnings that you don't have permission to read certain directories. To ignore/remove those, do:
find / -name 'filename' 2>/dev/null
That just redirects the stderr to /dev/null.
Sometimes it doesn't get login with username = root
and password
, then you can change the default settings or the reset settings.
Open config.inc.php
file in the phpmyadmin folder
Instead of
$cfg['Servers'][$i]['AllowNoPassword'] = false;
change it to:
$cfg['Servers'][$i]['AllowNoPassword'] = true;
Do not specify any password and put the user name as it was before, which means root
.
E.g.
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = '';
This worked for me after i had edited my config.inc.php
file.
Right click on your project -> properties -> build path. Add to your build path jar
file(s) that have the javax.servlet
implemenation. Ite depends on your servlet container or application server what file(s) you need to include, so search for that information.
You can list the tags on remote repository with ls-remote
, and then check if it's there. Supposing the remote reference name is origin
in the following.
git ls-remote --tags origin
And you can list tags local with tag
.
git tag
You can compare the results manually or in script.
You can compare a string to an enum item as follow,
public class Main {
enum IaaSProvider{
aws,
microsoft,
google
}
public static void main(String[] args){
IaaSProvider iaaSProvider = IaaSProvider.google;
if("google".equals(iaaSProvider.toString())){
System.out.println("The provider is google");
}
}
}
You can have multiple CSS declarations for the same properties by separating them with commas:
.abc, .xyz {
margin-left: 20px;
}
@bdiamante's answer may only partially help you. If you still get a message after you've suppressed warnings, it's because the pandas
library itself is printing the message. There's not much you can do about it unless you edit the Pandas source code yourself. Maybe there's an option internally to suppress them, or a way to override things, but I couldn't find one.
Suppose that you want to ensure a clean working environment. At the top of your script, you put pd.reset_option('all')
. With Pandas 0.23.4, you get the following:
>>> import pandas as pd
>>> pd.reset_option('all')
html.border has been deprecated, use display.html.border instead
(currently both are identical)
C:\projects\stackoverflow\venv\lib\site-packages\pandas\core\config.py:619: FutureWarning: html.bord
er has been deprecated, use display.html.border instead
(currently both are identical)
warnings.warn(d.msg, FutureWarning)
: boolean
use_inf_as_null had been deprecated and will be removed in a future
version. Use `use_inf_as_na` instead.
C:\projects\stackoverflow\venv\lib\site-packages\pandas\core\config.py:619: FutureWarning:
: boolean
use_inf_as_null had been deprecated and will be removed in a future
version. Use `use_inf_as_na` instead.
warnings.warn(d.msg, FutureWarning)
>>>
Following the @bdiamante's advice, you use the warnings
library. Now, true to it's word, the warnings have been removed. However, several pesky messages remain:
>>> import warnings
>>> warnings.simplefilter(action='ignore', category=FutureWarning)
>>> import pandas as pd
>>> pd.reset_option('all')
html.border has been deprecated, use display.html.border instead
(currently both are identical)
: boolean
use_inf_as_null had been deprecated and will be removed in a future
version. Use `use_inf_as_na` instead.
>>>
In fact, disabling all warnings produces the same output:
>>> import warnings
>>> warnings.simplefilter(action='ignore', category=Warning)
>>> import pandas as pd
>>> pd.reset_option('all')
html.border has been deprecated, use display.html.border instead
(currently both are identical)
: boolean
use_inf_as_null had been deprecated and will be removed in a future
version. Use `use_inf_as_na` instead.
>>>
In the standard library sense, these aren't true warnings. Pandas implements its own warnings system. Running grep -rn
on the warning messages shows that the pandas
warning system is implemented in core/config_init.py
:
$ grep -rn "html.border has been deprecated"
core/config_init.py:207:html.border has been deprecated, use display.html.border instead
Further chasing shows that I don't have time for this. And you probably don't either. Hopefully this saves you from falling down the rabbit hole or perhaps inspires someone to figure out how to truly suppress these messages!
Use the following code it worked for me:
# Create the figure
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
# Generate the values
x_vals = X_iso[:, 0:1]
y_vals = X_iso[:, 1:2]
z_vals = X_iso[:, 2:3]
# Plot the values
ax.scatter(x_vals, y_vals, z_vals, c = 'b', marker='o')
ax.set_xlabel('X-axis')
ax.set_ylabel('Y-axis')
ax.set_zlabel('Z-axis')
plt.show()
while X_iso is my 3-D array and for X_vals, Y_vals, Z_vals I copied/used 1 column/axis from that array and assigned to those variables/arrays respectively.
SELECT owner, table_name
FROM dba_constraints
WHERE constraint_name = <<your constraint name>>
will give you the name of the table. If you don't have access to the DBA_CONSTRAINTS
view, ALL_CONSTRAINTS
or USER_CONSTRAINTS
should work as well.
I am not sure whether anyone faced issues with getting the whole string "test from adb". Using the escape character in front of the space worked for me.
adb shell am broadcast -a com.whereismywifeserver.intent.TEST --es sms_body "test\ from\ adb" -n com.whereismywifeserver/.IntentReceiver
you can use key function of php to get the key name:
<?php
$array = array(
'fruit1' => 'apple',
'fruit2' => 'orange',
'fruit3' => 'grape',
'fruit4' => 'apple',
'fruit5' => 'apple');
// this cycle echoes all associative array
// key where value equals "apple"
while ($fruit_name = current($array)) {
if ($fruit_name == 'apple') {
echo key($array).'<br />';
}
next($array);
}
?>
like here : PHP:key - Manual
a very common try_files line which can be applied on your condition is
location / {
try_files $uri $uri/ /test/index.html;
}
you probably understand the first part, location /
matches all locations, unless it's matched by a more specific location, like location /test
for example
The second part ( the try_files
) means when you receive a URI that's matched by this block try $uri
first, for example http://example.com/images/image.jpg
nginx will try to check if there's a file inside /images
called image.jpg
if found it will serve it first.
Second condition is $uri/
which means if you didn't find the first condition $uri
try the URI as a directory, for example http://example.com/images/
, ngixn will first check if a file called images
exists then it wont find it, then goes to second check $uri/
and see if there's a directory called images
exists then it will try serving it.
Side note: if you don't have autoindex on
you'll probably get a 403 forbidden error, because directory listing is forbidden by default.
EDIT: I forgot to mention that if you have
index
defined, nginx will try to check if the index exists inside this folder before trying directory listing.
Third condition /test/index.html
is considered a fall back option, (you need to use at least 2 options, one and a fall back), you can use as much as you can (never read of a constriction before), nginx will look for the file index.html
inside the folder test
and serve it if it exists.
If the third condition fails too, then nginx will serve the 404 error page.
Also there's something called named locations, like this
location @error {
}
You can call it with try_files
like this
try_files $uri $uri/ @error;
TIP: If you only have 1 condition you want to serve, like for example inside folder images
you only want to either serve the image or go to 404 error, you can write a line like this
location /images {
try_files $uri =404;
}
which means either serve the file or serve a 404 error, you can't use only $uri
by it self without =404
because you need to have a fallback option.
You can also choose which ever error code you want, like for example:
location /images {
try_files $uri =403;
}
This will show a forbidden error if the image doesn't exist, or if you use 500 it will show server error, etc ..
I find this easier to use...
static ArrayList<Individual> group[];
......
void initializeGroup(int size)
{
group=new ArrayList[size];
for(int i=0;i<size;i++)
{
group[i]=new ArrayList<Individual>();
}
In my experience, to use wmic
in a script, you need to get the nested quoting right:
wmic product where "name = 'Windows Azure Authoring Tools - v2.3'" call uninstall /nointeractive
quoting both the query and the name. But wmic will only uninstall things installed via windows installer.
There is better way. I'm using it in pages where I'm using kendo angularJS directives and grids has'nt IDs...
change: function (e) {
var selectedDataItem = e != null ? e.sender.dataItem(e.sender.select()) : null;
}
The best answer is...
The expression in the accepted answer misses many cases. Among other things, URLs can have unicode characters in them. The regex you want is here, and after looking at it, you may conclude that you don't really want it after all. The most correct version is ten-thousand characters long.
Admittedly, if you were starting with plain, unstructured text with a bunch of URLs in it, then you might need that ten-thousand-character-long regex. But if your input is structured, use the structure. Your stated aim is to "extract the url, inside the anchor tag's href." Why use a ten-thousand-character-long regex when you can do something much simpler?
For many tasks, using Beautiful Soup will be far faster and easier to use:
>>> from bs4 import BeautifulSoup as Soup
>>> html = Soup(s, 'html.parser') # Soup(s, 'lxml') if lxml is installed
>>> [a['href'] for a in html.find_all('a')]
['http://example.com', 'http://example2.com']
If you prefer not to use external tools, you can also directly use Python's own built-in HTML parsing library. Here's a really simple subclass of HTMLParser
that does exactly what you want:
from html.parser import HTMLParser
class MyParser(HTMLParser):
def __init__(self, output_list=None):
HTMLParser.__init__(self)
if output_list is None:
self.output_list = []
else:
self.output_list = output_list
def handle_starttag(self, tag, attrs):
if tag == 'a':
self.output_list.append(dict(attrs).get('href'))
Test:
>>> p = MyParser()
>>> p.feed(s)
>>> p.output_list
['http://example.com', 'http://example2.com']
You could even create a new method that accepts a string, calls feed
, and returns output_list
. This is a vastly more powerful and extensible way than regular expressions to extract information from html.
To compare each item with the next one in an iterator without instantiating a list:
import itertools
it = (x for x in range(10))
data1, data2 = itertools.tee(it)
data2.next()
for a, b in itertools.izip(data1, data2):
print a, b
Two different options to add item to an array without mutation
case ADD_ITEM :
return {
...state,
arr: [...state.arr, action.newItem]
}
OR
case ADD_ITEM :
return {
...state,
arr: state.arr.concat(action.newItem)
}
You could try also this
<INPUT TYPE="image" SRC="0piximage.gif" HEIGHT="0" WIDTH="0" BORDER="0">
You could include an image with width/height = 0 px
grep -nr search_string search_dir
will do a RECURSIVE (meaning the directory and all it's sub-directories) search for the search_string. (as correctly answered by usta).
The reason you were not getting any anwers with your friend's suggestion of:
grep -nr string
is because no directory was specified. If you are in the directory that you want to do the search in, you have to do the following:
grep -nr string .
It is important to include the '.' character, as this tells grep to search THIS directory.
First, the ++ operator takes precedence over the * operator, and the () operators take precedence over everything else.
Second, the ++number operator is the same as the number++ operator if you're not assigning them to anything. The difference is number++ returns number and then increments number, and ++number increments first and then returns it.
Third, by increasing the value of a pointer, you're incrementing it by the sizeof its contents, that is you're incrementing it as if you were iterating in an array.
So, to sum it all up:
ptr++; // Pointer moves to the next int position (as if it was an array)
++ptr; // Pointer moves to the next int position (as if it was an array)
++*ptr; // The value of ptr is incremented
++(*ptr); // The value of ptr is incremented
++*(ptr); // The value of ptr is incremented
*ptr++; // Pointer moves to the next int position (as if it was an array). But returns the old content
(*ptr)++; // The value of ptr is incremented
*(ptr)++; // Pointer moves to the next int position (as if it was an array). But returns the old content
*++ptr; // Pointer moves to the next int position, and then get's accessed, with your code, segfault
*(++ptr); // Pointer moves to the next int position, and then get's accessed, with your code, segfault
As there are a lot of cases in here, I might have made some mistake, please correct me if I'm wrong.
EDIT:
So I was wrong, the precedence is a little more complicated than what I wrote, view it here: http://en.cppreference.com/w/cpp/language/operator_precedence
In addition to Tom Blodget's response, you may simply add @HtmlBeginForm as the form action, like this:
<form id="form" method="post" action="@Html.BeginForm("action", "controller", FormMethod.Post, new { onsubmit = "this.querySelectorAll('input').forEach(i => i.disabled = false)" })"
I am heavily tempted to close this as a duplicate; this question appears to be answered in many different ways all over the site:
public String lastChars(String a) {
if(a.length()>=1{
String str1 =a.substring(b.length()-1);
}
return str1;
}
I put together this test app to reproduce the issue using the HTTP testing framework from the Apache HttpClient package:
ClassLoader cl = HCTest.class.getClassLoader();
URL url = cl.getResource("test.keystore");
KeyStore keystore = KeyStore.getInstance("jks");
char[] pwd = "nopassword".toCharArray();
keystore.load(url.openStream(), pwd);
TrustManagerFactory tmf = TrustManagerFactory.getInstance(
TrustManagerFactory.getDefaultAlgorithm());
tmf.init(keystore);
TrustManager[] tm = tmf.getTrustManagers();
KeyManagerFactory kmfactory = KeyManagerFactory.getInstance(
KeyManagerFactory.getDefaultAlgorithm());
kmfactory.init(keystore, pwd);
KeyManager[] km = kmfactory.getKeyManagers();
SSLContext sslcontext = SSLContext.getInstance("TLS");
sslcontext.init(km, tm, null);
LocalTestServer localServer = new LocalTestServer(sslcontext);
localServer.registerDefaultHandlers();
localServer.start();
try {
DefaultHttpClient httpclient = new DefaultHttpClient();
TrustStrategy trustStrategy = new TrustStrategy() {
public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
for (X509Certificate cert: chain) {
System.err.println(cert);
}
return false;
}
};
SSLSocketFactory sslsf = new SSLSocketFactory("TLS", null, null, keystore, null,
trustStrategy, new AllowAllHostnameVerifier());
Scheme https = new Scheme("https", 443, sslsf);
httpclient.getConnectionManager().getSchemeRegistry().register(https);
InetSocketAddress address = localServer.getServiceAddress();
HttpHost target1 = new HttpHost(address.getHostName(), address.getPort(), "https");
HttpGet httpget1 = new HttpGet("/random/100");
HttpResponse response1 = httpclient.execute(target1, httpget1);
System.err.println(response1.getStatusLine());
HttpEntity entity1 = response1.getEntity();
EntityUtils.consume(entity1);
HttpHost target2 = new HttpHost("www.verisign.com", 443, "https");
HttpGet httpget2 = new HttpGet("/");
HttpResponse response2 = httpclient.execute(target2, httpget2);
System.err.println(response2.getStatusLine());
HttpEntity entity2 = response2.getEntity();
EntityUtils.consume(entity2);
} finally {
localServer.stop();
}
Even though, Sun's JSSE implementation appears to always read the trust material from the default trust store for some reason, it does not seem to get added to the SSL context and to impact the process of trust verification during the SSL handshake.
Here's the output of the test app. As you can see, the first request succeeds whereas the second fails as the connection to www.verisign.com is rejected as untrusted.
[
[
Version: V1
Subject: CN=Simple Test Http Server, OU=Jakarta HttpClient Project, O=Apache Software Foundation, L=Unknown, ST=Unknown, C=Unknown
Signature Algorithm: SHA1withDSA, OID = 1.2.840.10040.4.3
Key: Sun DSA Public Key
Parameters:DSA
p: fd7f5381 1d751229 52df4a9c 2eece4e7 f611b752 3cef4400 c31e3f80 b6512669
455d4022 51fb593d 8d58fabf c5f5ba30 f6cb9b55 6cd7813b 801d346f f26660b7
6b9950a5 a49f9fe8 047b1022 c24fbba9 d7feb7c6 1bf83b57 e7c6a8a6 150f04fb
83f6d3c5 1ec30235 54135a16 9132f675 f3ae2b61 d72aeff2 2203199d d14801c7
q: 9760508f 15230bcc b292b982 a2eb840b f0581cf5
g: f7e1a085 d69b3dde cbbcab5c 36b857b9 7994afbb fa3aea82 f9574c0b 3d078267
5159578e bad4594f e6710710 8180b449 167123e8 4c281613 b7cf0932 8cc8a6e1
3c167a8b 547c8d28 e0a3ae1e 2bb3a675 916ea37f 0bfa2135 62f1fb62 7a01243b
cca4f1be a8519089 a883dfe1 5ae59f06 928b665e 807b5525 64014c3b fecf492a
y:
f0cc639f 702fd3b1 03fa8fa6 676c3756 ea505448 23cd1147 fdfa2d7f 662f7c59
a02ddc1a fd76673e 25210344 cebbc0e7 6250fff1 a814a59f 30ff5c7e c4f186d8
f0fd346c 29ea270d b054c040 c74a9fc0 55a7020f eacf9f66 a0d86d04 4f4d23de
7f1d681f 45c4c674 5762b71b 808ded17 05b74baf 8de3c4ab 2ef662e3 053af09e
Validity: [From: Sat Dec 11 14:48:35 CET 2004,
To: Tue Dec 09 14:48:35 CET 2014]
Issuer: CN=Simple Test Http Server, OU=Jakarta HttpClient Project, O=Apache Software Foundation, L=Unknown, ST=Unknown, C=Unknown
SerialNumber: [ 41bafab3]
]
Algorithm: [SHA1withDSA]
Signature:
0000: 30 2D 02 15 00 85 BE 6B D0 91 EF 34 72 05 FF 1A 0-.....k...4r...
0010: DB F6 DE BF 92 53 9B 14 27 02 14 37 8D E8 CB AC .....S..'..7....
0020: 4E 6C 93 F2 1F 7D 20 A1 2D 6F 80 5F 58 AE 33 Nl.... .-o._X.3
]
HTTP/1.1 200 OK
[
[
Version: V3
Subject: CN=www.verisign.com, OU=" Production Security Services", O="VeriSign, Inc.", STREET=487 East Middlefield Road, L=Mountain View, ST=California, OID.2.5.4.17=94043, C=US, SERIALNUMBER=2497886, OID.2.5.4.15="V1.0, Clause 5.(b)", OID.1.3.6.1.4.1.311.60.2.1.2=Delaware, OID.1.3.6.1.4.1.311.60.2.1.3=US
Signature Algorithm: SHA1withRSA, OID = 1.2.840.113549.1.1.5
Key: Sun RSA public key, 2048 bits
modulus: 20699622354183393041832954221256409980425015218949582822286196083815087464214375375678538878841956356687753084333860738385445545061253653910861690581771234068858443439641948884498053425403458465980515883570440998475638309355278206558031134532548167239684215445939526428677429035048018486881592078320341210422026566944903775926801017506416629554190534665876551381066249522794321313235316733139718653035476771717662585319643139144923795822646805045585537550376512087897918635167815735560529881178122744633480557211052246428978388768010050150525266771462988042507883304193993556759733514505590387262811565107773578140271
public exponent: 65537
Validity: [From: Wed May 26 02:00:00 CEST 2010,
To: Sat May 26 01:59:59 CEST 2012]
Issuer: CN=VeriSign Class 3 Extended Validation SSL SGC CA, OU=Terms of use at https://www.verisign.com/rpa (c)06, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US
SerialNumber: [ 53d2bef9 24a7245e 83ca01e4 6caa2477]
Certificate Extensions: 10
[1]: ObjectId: 1.3.6.1.5.5.7.1.1 Criticality=false
AuthorityInfoAccess [
[accessMethod: 1.3.6.1.5.5.7.48.1
accessLocation: URIName: http://EVIntl-ocsp.verisign.com, accessMethod: 1.3.6.1.5.5.7.48.2
accessLocation: URIName: http://EVIntl-aia.verisign.com/EVIntl2006.cer]
]
...
]
Exception in thread "main" javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
at com.sun.net.ssl.internal.ssl.SSLSessionImpl.getPeerCertificates(SSLSessionImpl.java:345)
at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:128)
at org.apache.http.conn.ssl.SSLSocketFactory.createLayeredSocket(SSLSocketFactory.java:446)
...
If you are a Windows user, Tweepy API can generate an empty line between data objects. Because of this situation, you can get "JSONDecodeError: Expecting value: line 1 column 1 (char 0)" error. To avoid this error, you can delete empty lines.
For example:
def on_data(self, data):
try:
with open('sentiment.json', 'a', newline='\n') as f:
f.write(data)
return True
except BaseException as e:
print("Error on_data: %s" % str(e))
return True
Reference: Twitter stream API gives JSONDecodeError("Expecting value", s, err.value) from None
Below code will only allow numbers "0123456789”, even if you accidentally type other than "0123456789”, edit text will not accept.
EditText number1 = (EditText) layout.findViewById(R.id.edittext);
number1.setInputType(InputType.TYPE_CLASS_NUMBER|InputType.TYPE_CLASS_PHONE);
number1.setKeyListener(DigitsKeyListener.getInstance("0123456789”));
You would have to convert the int into a string.
# This program calculates a workers gross pay
hours = float(raw_input("Enter hours worked: \n"))
rate = float(raw_input("Enter your hourly rate of pay: \n"))
gross = hours * rate
print "Your gross pay for working " +str(hours)+ " at a rate of " + str(rate) + " hourly is $" + str(gross)
Working code:
addresses = geocoder.getFromLocation(mMap.getCameraPosition().target.latitude, mMap.getCameraPosition().target.longitude, 1); // Here 1 represent max location result to returned, by documents it recommended 1 to 5
String locality = addresses.get(0).getLocality(); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
String subLocality = addresses.get(0).getSubLocality(); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
//String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
String address1 = addresses.get(0).getAddressLine(1); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
String address2 = addresses.get(0).getAddressLine(2); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
String city = addresses.get(0).getLocality();
String state = addresses.get(0).getAdminArea();
String country = addresses.get(0).getCountryName();
// String postalCode = addresses.get(0).getPostalCode();
String knownName = addresses.get(0).getFeatureName();
Another reason this could be happening is if you are using an iframe that has the sandbox attribute and allow-same-origin
isn't set e.g.:
// page.html
<iframe id="f" src="http://localhost:8000/iframe.html" sandbox="allow-scripts"></iframe>
<script type="text/javascript">
var f = document.getElementById("f").contentWindow;
// will throw exception
f.postMessage("hello world!", 'http://localhost:8000');
</script>
// iframe.html
<script type="text/javascript">
window.addEventListener("message", function(event) {
console.log(event);
}, false);
</script>
I haven't found a solution other than:
f.postMessage("hello world!", '*');
I know this post is really old, but I have to reply because although BalusC's answer is marked as correct, it's not completely correct.
You have to write the query adding "[]" to foo like this:
foo[]=val1&foo[]=val2&foo[]=val3
git rm --cached file
will remove the file from the stage. That is, when you commit the file will be removed. git reset HEAD -- file
will simply reset file in the staging area to the state where it was on the HEAD commit, i.e. will undo any changes you did to it since last commiting. If that change happens to be newly adding the file, then they will be equivalent.
My guess would be this is b/c its getting mangled up a bit by C++ b/c your sending it a C++ pointer, not a C function pointer. There is a difference apparently. Try doing a
(void)(*p)(void) = ((void) *(void)) &c[0].print; //(check my syntax on that cast)
and then sending p.
I've done what your doing with a member function also, but i did it in the class that was using it, and with a static function - which i think made the difference.
Addition: SQL Server 2012 shows some improved performance in this area but doesn't seem to tackle the specific issues noted below. This should apparently be fixed in the next major version after SQL Server 2012!
Your plan shows the single inserts are using parameterised procedures (possibly auto parameterised) so parse/compile time for these should be minimal.
I thought I'd look into this a bit more though so set up a loop (script) and tried adjusting the number of VALUES
clauses and recording the compile time.
I then divided the compile time by the number of rows to get the average compile time per clause. The results are below
Up until 250 VALUES
clauses present the compile time / number of clauses has a slight upward trend but nothing too dramatic.
But then there is a sudden change.
That section of the data is shown below.
+------+----------------+-------------+---------------+---------------+
| Rows | CachedPlanSize | CompileTime | CompileMemory | Duration/Rows |
+------+----------------+-------------+---------------+---------------+
| 245 | 528 | 41 | 2400 | 0.167346939 |
| 246 | 528 | 40 | 2416 | 0.162601626 |
| 247 | 528 | 38 | 2416 | 0.153846154 |
| 248 | 528 | 39 | 2432 | 0.157258065 |
| 249 | 528 | 39 | 2432 | 0.156626506 |
| 250 | 528 | 40 | 2448 | 0.16 |
| 251 | 400 | 273 | 3488 | 1.087649402 |
| 252 | 400 | 274 | 3496 | 1.087301587 |
| 253 | 400 | 282 | 3520 | 1.114624506 |
| 254 | 408 | 279 | 3544 | 1.098425197 |
| 255 | 408 | 290 | 3552 | 1.137254902 |
+------+----------------+-------------+---------------+---------------+
The cached plan size which had been growing linearly suddenly drops but CompileTime increases 7 fold and CompileMemory shoots up. This is the cut off point between the plan being an auto parametrized one (with 1,000 parameters) to a non parametrized one. Thereafter it seems to get linearly less efficient (in terms of number of value clauses processed in a given time).
Not sure why this should be. Presumably when it is compiling a plan for specific literal values it must perform some activity that does not scale linearly (such as sorting).
It doesn't seem to affect the size of the cached query plan when I tried a query consisting entirely of duplicate rows and neither affects the order of the output of the table of the constants (and as you are inserting into a heap time spent sorting would be pointless anyway even if it did).
Moreover if a clustered index is added to the table the plan still shows an explicit sort step so it doesn't seem to be sorting at compile time to avoid a sort at run time.
I tried to look at this in a debugger but the public symbols for my version of SQL Server 2008 don't seem to be available so instead I had to look at the equivalent UNION ALL
construction in SQL Server 2005.
A typical stack trace is below
sqlservr.exe!FastDBCSToUnicode() + 0xac bytes
sqlservr.exe!nls_sqlhilo() + 0x35 bytes
sqlservr.exe!CXVariant::CmpCompareStr() + 0x2b bytes
sqlservr.exe!CXVariantPerformCompare<167,167>::Compare() + 0x18 bytes
sqlservr.exe!CXVariant::CmpCompare() + 0x11f67d bytes
sqlservr.exe!CConstraintItvl::PcnstrItvlUnion() + 0xe2 bytes
sqlservr.exe!CConstraintProp::PcnstrUnion() + 0x35e bytes
sqlservr.exe!CLogOp_BaseSetOp::PcnstrDerive() + 0x11a bytes
sqlservr.exe!CLogOpArg::PcnstrDeriveHandler() + 0x18f bytes
sqlservr.exe!CLogOpArg::DeriveGroupProperties() + 0xa9 bytes
sqlservr.exe!COpArg::DeriveNormalizedGroupProperties() + 0x40 bytes
sqlservr.exe!COptExpr::DeriveGroupProperties() + 0x18a bytes
sqlservr.exe!COptExpr::DeriveGroupProperties() + 0x146 bytes
sqlservr.exe!COptExpr::DeriveGroupProperties() + 0x146 bytes
sqlservr.exe!COptExpr::DeriveGroupProperties() + 0x146 bytes
sqlservr.exe!CQuery::PqoBuild() + 0x3cb bytes
sqlservr.exe!CStmtQuery::InitQuery() + 0x167 bytes
sqlservr.exe!CStmtDML::InitNormal() + 0xf0 bytes
sqlservr.exe!CStmtDML::Init() + 0x1b bytes
sqlservr.exe!CCompPlan::FCompileStep() + 0x176 bytes
sqlservr.exe!CSQLSource::FCompile() + 0x741 bytes
sqlservr.exe!CSQLSource::FCompWrapper() + 0x922be bytes
sqlservr.exe!CSQLSource::Transform() + 0x120431 bytes
sqlservr.exe!CSQLSource::Compile() + 0x2ff bytes
So going off the names in the stack trace it appears to spend a lot of time comparing strings.
This KB article indicates that DeriveNormalizedGroupProperties
is associated with what used to be called the normalization stage of query processing
This stage is now called binding or algebrizing and it takes the expression parse tree output from the previous parse stage and outputs an algebrized expression tree (query processor tree) to go forward to optimization (trivial plan optimization in this case) [ref].
I tried one more experiment (Script) which was to re-run the original test but looking at three different cases.
It can clearly be seen that the longer the strings the worse things get and that conversely the more duplicates the better things get. As previously mentioned duplicates don't affect the cached plan size so I presume that there must be a process of duplicate identification when constructing the algebrized expression tree itself.
Edit
One place where this information is leveraged is shown by @Lieven here
SELECT *
FROM (VALUES ('Lieven1', 1),
('Lieven2', 2),
('Lieven3', 3))Test (name, ID)
ORDER BY name, 1/ (ID - ID)
Because at compile time it can determine that the Name
column has no duplicates it skips ordering by the secondary 1/ (ID - ID)
expression at run time (the sort in the plan only has one ORDER BY
column) and no divide by zero error is raised. If duplicates are added to the table then the sort operator shows two order by columns and the expected error is raised.
the algorithm : ((x1 - x2) ^ 2 + (y1 - y2) ^ 2) < 25
You can try using:
select trunc(sysdate - to_date('2009-10-01', 'yyyy-mm-dd')) as days from dual
To return a file or filepath
URL resource = YourClass.class.getResource("abc");
File file = Paths.get(resource.toURI()).toFile(); // return a file
String filepath = Paths.get(resource.toURI()).toFile().getAbsolutePath(); // return file path
So after looking (and using) of the other answers, seems they all handling ColorDrawable
and PaintDrawable
badly. (Especially on lollipop) seemed that Shader
s were tweaked so solid blocks of colors were not handled correctly.
I am using the following code now:
public static Bitmap drawableToBitmap(Drawable drawable) {
if (drawable instanceof BitmapDrawable) {
return ((BitmapDrawable) drawable).getBitmap();
}
// We ask for the bounds if they have been set as they would be most
// correct, then we check we are > 0
final int width = !drawable.getBounds().isEmpty() ?
drawable.getBounds().width() : drawable.getIntrinsicWidth();
final int height = !drawable.getBounds().isEmpty() ?
drawable.getBounds().height() : drawable.getIntrinsicHeight();
// Now we check we are > 0
final Bitmap bitmap = Bitmap.createBitmap(width <= 0 ? 1 : width, height <= 0 ? 1 : height,
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return bitmap;
}
Unlike the others, if you call setBounds
on the Drawable
before asking to turn it into a bitmap, it will draw the bitmap at the correct size!
I’ve made a small gem that can alleviate the need to manually delete associated records in some circumstances.
This gem adds a new option for ActiveRecord associations:
dependent: :delete_recursively
When you destroy a record, all records that are associated using this option will be deleted recursively (i.e. across models), without instantiating any of them.
Note that, just like dependent: :delete or dependent: :delete_all, this new option does not trigger the around/before/after_destroy callbacks of the dependent records.
However, it is possible to have dependent: :destroy associations anywhere within a chain of models that are otherwise associated with dependent: :delete_recursively. The :destroy option will work normally anywhere up or down the line, instantiating and destroying all relevant records and thus also triggering their callbacks.
The answer to my own question is, I think, to use tomcat7.exe:
cd $CATALINA_HOME
.\bin\service.bat install tomcat
.\bin\tomcat7.exe //US//tomcat7 --JvmMs=512 --JvmMx=1024 --JvmSs=1024
Also, you can launch the UI tool mentioned by BalusC without the system tray or using the installer with tomcat7w.exe
.\bin\tomcat7w.exe //ES//tomcat
An additional note to this:
Setting the --JvmXX parameters (through the UI tool or the command line) may not be enough. You may also need to specify the JVM memory values explicitly. From the command line it may look like this:
bin\tomcat7w.exe //US//tomcat7 --JavaOptions=-Xmx=1024;-Xms=512;..
Be careful not to override the other JavaOption values. You can try updating bin\service.bat or use the UI tool and append the java options (separate each value with a new line).
EDIT:
This works with OS X Mountain Lion's grep:
grep --color -E 'pattern1|pattern2|$'
This is better than '^|pattern1|pattern2'
because the ^
part of the alternation matches at the beginning of the line whereas the $
matches at the end of the line. Some regular expression engines won't highlight pattern1
or pattern2
because ^
already matched and the engine is eager.
Something similar happens for 'pattern1|pattern2|'
because the regex engine notices the empty alternation at the end of the pattern string matches the beginning of the subject string.
[1]: http://www.regular-expressions.info/engine.html
FIRST EDIT:
I ended up using perl:
perl -pe 's:pattern:\033[31;1m$&\033[30;0m:g'
This assumes you have an ANSI-compatible terminal.
ORIGINAL ANSWER:
If you're stuck with a strange grep
, this might work:
grep -E --color=always -A500 -B500 'pattern1|pattern2' | grep -v '^--'
Adjust the numbers to get all the lines you want.
The second grep
just removes extraneous --
lines inserted by the BSD-style grep
on Mac OS X Mountain Lion, even when the context of consecutive matches overlap.
I thought GNU grep omitted the --
lines when context overlaps, but it's been awhile so maybe I remember wrong.
Turning off optimization fixes the problem, but it is unnecessary. A safer alternative is to make it illegal for the compiler to optimize out the store by using the volatile
type qualifier.
// Assuming pageptr is unsigned char * already...
unsigned char *pageptr = ...;
((unsigned char volatile *)pageptr)[0] = pageptr[0];
The volatile
type qualifier instructs the compiler to be strict about memory stores and loads. One purpose of volatile
is to let the compiler know that the memory access has side effects, and therefore must be preserved. In this case, the store has the side effect of causing a page fault, and you want the compiler to preserve the page fault.
This way, the surrounding code can still be optimized, and your code is portable to other compilers which don't understand GCC's #pragma
or __attribute__
syntax.
This works:
assertThat(list,IsEmptyCollection.empty())
One-step solution without copying returned value from SQL Select query using procedure.
SET FOREIGN_KEY_CHECKS = 0
SET @TABLES = NULL;
SELECT GROUP_CONCAT('`', table_schema, '`.`', table_name,'`') INTO @TABLES FROM information_schema.tables
WHERE table_schema = 'databaseName';
SET @TABLES = CONCAT('DROP TABLE IF EXISTS ', @TABLES);
PREPARE stmt FROM @TABLES;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
SET FOREIGN_KEY_CHECKS = 1
You can 'json_encode' to first encode your post variables via PHP. Then create a JS object (array) from the JSON encoded post variables. Then use a JavaScript loop to manipulate those variables... Like - in this example below - to populate an HTML form form:
<script>
<?php $post_vars_json_encode = json_encode($this->input->post()); ?>
// SET POST VALUES OBJECT/ARRAY
var post_value_Arr = <?php echo $post_vars_json_encode; ?>;// creates a JS object with your post variables
console.log(post_value_Arr);
// POPULATE FIELDS BASED ON POST VALUES
for(var key in post_value_Arr){// Loop post variables array
if(document.getElementById(key)){// Field Exists
console.log("found post_value_Arr key form field = "+key);
document.getElementById(key).value = post_value_Arr[key];
}
}
</script>
I resolved this error today when it occurred trying to Commit to SVN. The error was genuine, TortoiseSVN could not access a file which I tried to Commit. This file had been saved while running a program "As Administrator" in Windows. This means the file has Administrator access but not access from my account (TortoiseSVN running as interactive user). I took ownership of the nominated file under my windows account and after that Cleanup was able to proceed.
(<([^>]+)>| )
You can test it here: https://regex101.com/r/kB0rQ4/1
Scanner in = new Scanner(System.in);
int i = in.nextInt();
String s = in.next();
int i;
int j;
int * const ptr1 = &i;
The compiler will stop you changing ptr1
.
const int * ptr2 = &i;
The compiler will stop you changing *ptr2
.
ptr1 = &j; // error
*ptr1 = 7; // ok
ptr2 = &j; // ok
*ptr2 = 7; // error
Note that you can still change *ptr2
, just not by literally typing *ptr2
:
i = 4;
printf("before: %d\n", *ptr2); // prints 4
i = 5;
printf("after: %d\n", *ptr2); // prints 5
*ptr2 = 6; // still an error
You can also have a pointer with both features:
const int * const ptr3 = &i;
ptr3 = &j; // error
*ptr3 = 7; // error
This is a working solution of AES encryption
- implemented using openssl
. It uses the Cipher Block Chaining Mode (CBC-Mode). Thus, alongside data
and key
, you can specify iv
and block size
<?php
class AESEncryption {
protected $key;
protected $data;
protected $method;
protected $iv;
/**
* Available OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING
*
* @var type $options
*/
protected $options = 0;
/**
*
* @param type $data
* @param type $key
* @param type $iv
* @param type $blockSize
* @param type $mode
*/
public function __construct($data = null, $key = null, $iv = null, $blockSize = null, $mode = 'CBC') {
$this->setData($data);
$this->setKey($key);
$this->setInitializationVector($iv);
$this->setMethod($blockSize, $mode);
}
/**
*
* @param type $data
*/
public function setData($data) {
$this->data = $data;
}
/**
*
* @param type $key
*/
public function setKey($key) {
$this->key = $key;
}
/**
* CBC 128 192 256
CBC-HMAC-SHA1 128 256
CBC-HMAC-SHA256 128 256
CFB 128 192 256
CFB1 128 192 256
CFB8 128 192 256
CTR 128 192 256
ECB 128 192 256
OFB 128 192 256
XTS 128 256
* @param type $blockSize
* @param type $mode
*/
public function setMethod($blockSize, $mode = 'CBC') {
if($blockSize==192 && in_array('', array('CBC-HMAC-SHA1','CBC-HMAC-SHA256','XTS'))){
$this->method=null;
throw new Exception('Invalid block size and mode combination!');
}
$this->method = 'AES-' . $blockSize . '-' . $mode;
}
/**
*
* @param type $data
*/
public function setInitializationVector($iv) {
$this->iv = $iv;
}
/**
*
* @return boolean
*/
public function validateParams() {
if ($this->data != null &&
$this->method != null ) {
return true;
} else {
return FALSE;
}
}
//it must be the same when you encrypt and decrypt
protected function getIV() {
return $this->iv;
}
/**
* @return type
* @throws Exception
*/
public function encrypt() {
if ($this->validateParams()) {
return trim(openssl_encrypt($this->data, $this->method, $this->key, $this->options,$this->getIV()));
} else {
throw new Exception('Invalid params!');
}
}
/**
*
* @return type
* @throws Exception
*/
public function decrypt() {
if ($this->validateParams()) {
$ret=openssl_decrypt($this->data, $this->method, $this->key, $this->options,$this->getIV());
return trim($ret);
} else {
throw new Exception('Invalid params!');
}
}
}
Sample usage:
<?php
$data = json_encode(['first_name'=>'Dunsin','last_name'=>'Olubobokun','country'=>'Nigeria']);
$inputKey = "W92ZB837943A711B98D35E799DFE3Z18";
$iv = "tuqZQhKP48e8Piuc";
$blockSize = 256;
$aes = new AESEncryption($data, $inputKey, $iv, $blockSize);
$enc = $aes->encrypt();
$aes->setData($enc);
$dec=$aes->decrypt();
echo "After encryption: ".$enc."<br/>";
echo "After decryption: ".$dec."<br/>";
Here's my solution (requires no jQuery... just JavaScript):
function argsToArray(args) {
var r = []; for (var i = 0; i < args.length; i++)
r.push(args[i]);
return r;
}
function bind() {
var initArgs = argsToArray(arguments);
var fx = initArgs.shift();
var tObj = initArgs.shift();
var args = initArgs;
return function() {
return fx.apply(tObj, args.concat(argsToArray(arguments)));
};
}
var salutation = argsToArray(document.getElementsByClassName('salutation'));
salutation.forEach(function(checkbox) {
checkbox.addEventListener('change', bind(function(checkbox, salutation) {
var numChecked = salutation.filter(function(checkbox) { return checkbox.checked; }).length;
if (numChecked >= 4)
checkbox.checked = false;
}, null, checkbox, salutation), false);
});
Put this in a script block at the end of <body>
and the snippet will do its magic, limiting the number of checkboxes checked in maximum to three (or whatever number you specify).
Here, I'll even give you a test page (paste it into a file and try it):
<!DOCTYPE html><html><body>
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<input type="checkbox" class="salutation">
<script>
function argsToArray(args) {
var r = []; for (var i = 0; i < args.length; i++)
r.push(args[i]);
return r;
}
function bind() {
var initArgs = argsToArray(arguments);
var fx = initArgs.shift();
var tObj = initArgs.shift();
var args = initArgs;
return function() {
return fx.apply(tObj, args.concat(argsToArray(arguments)));
};
}
var salutation = argsToArray(document.getElementsByClassName('salutation'));
salutation.forEach(function(checkbox) {
checkbox.addEventListener('change', bind(function(checkbox, salutation) {
var numChecked = salutation.filter(function(checkbox) { return checkbox.checked; }).length;
if (numChecked >= 3)
checkbox.checked = false;
}, null, checkbox, salutation), false);
});
</script></body></html>
A lot of answers end up moving your fork one commit ahead of the parent repository. This answer summarizes the steps found here which will move your fork to the same commit as the parent.
Change directory to your local repository.
git checkout master
Add the parent as a remote repository, git remote add upstream <repo-location>
git fetch upstream
Issue git rebase upstream/master
git status
Issue git push origin master
For more information about these commands, refer to step 3.
You can use this jquery plugin:
http://digitalbush.com/projects/masked-input-plugin/
Refer to demo tab, phone option.
add an ALIAS
on the subquery,
SELECT COUNT(made_only_recharge) AS made_only_recharge
FROM
(
SELECT DISTINCT (identifiant) AS made_only_recharge
FROM cdr_data
WHERE CALLEDNUMBER = '0130'
EXCEPT
SELECT DISTINCT (identifiant) AS made_only_recharge
FROM cdr_data
WHERE CALLEDNUMBER != '0130'
) AS derivedTable -- <<== HERE
Opening and closing the connection takes a lot of time. And use the "using" as another member suggested. I changed your code slightly, but put the SQL creation and opening and closing OUTSIDE your loop. Which should speed up the execution a bit.
static void Main()
{
EventLog alog = new EventLog();
alog.Log = "Application";
alog.MachineName = ".";
/* ALSO: USE the USING Statement as another member suggested
using (SqlConnection connection1 = new SqlConnection(@"Data Source=.\sqlexpress;Initial Catalog=syslog2;Integrated Security=True")
{
using (SqlCommand comm = new SqlCommand("INSERT INTO Application VALUES (@EventLog, @TimeGenerated, @EventType, @SourceName, @ComputerName, @InstanceId, @Message) ", connection1))
{
// add the code in here
// AND REMEMBER: connection1.Open();
}
}*/
SqlConnection connection1 = new SqlConnection(@"Data Source=.\sqlexpress;Initial Catalog=syslog2;Integrated Security=True");
SqlDataAdapter cmd = new SqlDataAdapter();
// Do it one line
cmd.InsertCommand = new SqlCommand("INSERT INTO Application VALUES (@EventLog, @TimeGenerated, @EventType, @SourceName, @ComputerName, @InstanceId, @Message) ", connection1);
// OR YOU CAN DO IN SEPARATE LINE :
// cmd.InsertCommand.Connection = connection1;
connection1.Open();
// CREATE YOUR SQLCONNECTION ETC OUTSIDE YOUR FOREACH LOOP
foreach (EventLogEntry entry in alog.Entries)
{
cmd.InsertCommand.Parameters.Add("@EventLog", SqlDbType.VarChar).Value = alog.Log;
cmd.InsertCommand.Parameters.Add("@TimeGenerated", SqlDbType.DateTime).Value = entry.TimeGenerated;
cmd.InsertCommand.Parameters.Add("@EventType", SqlDbType.VarChar).Value = entry.EntryType;
cmd.InsertCommand.Parameters.Add("@SourceName", SqlDbType.VarChar).Value = entry.Source;
cmd.InsertCommand.Parameters.Add("@ComputerName", SqlDbType.VarChar).Value = entry.MachineName;
cmd.InsertCommand.Parameters.Add("@InstanceId", SqlDbType.VarChar).Value = entry.InstanceId;
cmd.InsertCommand.Parameters.Add("@Message", SqlDbType.VarChar).Value = entry.Message;
int rowsAffected = cmd.InsertCommand.ExecuteNonQuery();
}
connection1.Close(); // AND CLOSE IT ONCE, AFTER THE LOOP
}
There's another short-cut you can use, although it can be inefficient depending on what's in your class instances.
As everyone has said the problem is that the multiprocessing
code has to pickle the things that it sends to the sub-processes it has started, and the pickler doesn't do instance-methods.
However, instead of sending the instance-method, you can send the actual class instance, plus the name of the function to call, to an ordinary function that then uses getattr
to call the instance-method, thus creating the bound method in the Pool
subprocess. This is similar to defining a __call__
method except that you can call more than one member function.
Stealing @EricH.'s code from his answer and annotating it a bit (I retyped it hence all the name changes and such, for some reason this seemed easier than cut-and-paste :-) ) for illustration of all the magic:
import multiprocessing
import os
def call_it(instance, name, args=(), kwargs=None):
"indirect caller for instance methods and multiprocessing"
if kwargs is None:
kwargs = {}
return getattr(instance, name)(*args, **kwargs)
class Klass(object):
def __init__(self, nobj, workers=multiprocessing.cpu_count()):
print "Constructor (in pid=%d)..." % os.getpid()
self.count = 1
pool = multiprocessing.Pool(processes = workers)
async_results = [pool.apply_async(call_it,
args = (self, 'process_obj', (i,))) for i in range(nobj)]
pool.close()
map(multiprocessing.pool.ApplyResult.wait, async_results)
lst_results = [r.get() for r in async_results]
print lst_results
def __del__(self):
self.count -= 1
print "... Destructor (in pid=%d) count=%d" % (os.getpid(), self.count)
def process_obj(self, index):
print "object %d" % index
return "results"
Klass(nobj=8, workers=3)
The output shows that, indeed, the constructor is called once (in the original pid) and the destructor is called 9 times (once for each copy made = 2 or 3 times per pool-worker-process as needed, plus once in the original process). This is often OK, as in this case, since the default pickler makes a copy of the entire instance and (semi-) secretly re-populates it—in this case, doing:
obj = object.__new__(Klass)
obj.__dict__.update({'count':1})
—that's why even though the destructor is called eight times in the three worker processes, it counts down from 1 to 0 each time—but of course you can still get into trouble this way. If necessary, you can provide your own __setstate__
:
def __setstate__(self, adict):
self.count = adict['count']
in this case for instance.
Use index_col=False instead of index_col=None when you have delimiters at the end of each line to turn off index column inference and discard the last column.
After looking at the data, there is a comma at the end of each line. And this quote (the documentation has been edited since the time this post was created):
index_col: column number, column name, or list of column numbers/names, to use as the index (row labels) of the resulting DataFrame. By default, it will number the rows without using any column, unless there is one more data column than there are headers, in which case the first column is taken as the index.
from the documentation shows that pandas believes you have n headers and n+1 data columns and is treating the first column as the index.
EDIT 10/20/2014 - More information
I found another valuable entry that is specifically about trailing limiters and how to simply ignore them:
If a file has one more column of data than the number of column names, the first column will be used as the DataFrame’s row names: ...
Ordinarily, you can achieve this behavior using the index_col option.
There are some exception cases when a file has been prepared with delimiters at the end of each data line, confusing the parser. To explicitly disable the index column inference and discard the last column, pass index_col=False: ...
-- This will exclude files and traverse through 1 level of sub folders in the root
def list_files(dir):
List = []
filterstr = ' '
for root, dirs, files in os.walk(dir, topdown = True):
#r.append(root)
if (root == dir):
pass
elif filterstr in root:
#filterstr = ' '
pass
else:
filterstr = root
#print(root)
for name in files:
print(root)
print(dirs)
List.append(os.path.join(root,name))
#print(os.path.join(root,name),"\n")
print(List,"\n")
return List
Yes VBA is the way to go.
But, if you don't need to have a cell with formula that auto-counts/updates the number of cells with a particular colour, an alternative is simply to use the 'Find and Replace' function and format the cell to have the appropriate colour fill.
Hitting 'Find All' will give you the total number of cells found at the bottom left of the dialogue box.
This becomes especially useful if your search range is massive. The VBA script will be very slow but the 'Find and Replace' function will still be very quick.
I believe the solutions are the following
You actually either:
Don't want to display that ugly back button ( :] ), and thus go for :
AppBar(...,automaticallyImplyLeading: false,...)
;
Don't want the user to go back - replacing current view - and thus go for:
Navigator.pushReplacementNamed(## your routename here ##)
;
Don't want the user to go back - replacing a certain view back in the stack - and thus use:
Navigator.pushNamedAndRemoveUntil(## your routename here ##, f(Route<dynamic>)?bool);
where f is a function returning true
when meeting the last view you want to keep in the stack (right before the new one);
Don't want the user to go back - EVER - emptying completely the navigator stack with:
Navigator.pushNamedAndRemoveUntil(context, ## your routename here ##, (_) => false);
Cheers
@jonrsharpe has an excellent explanation of what's going on. I thought I'd just show the difference in time when running each of the 3 options 10,000,000 times (enough for a slight difference to show).
Code used:
def a(x):
if x != 'val':
pass
def b(x):
if not x == 'val':
pass
def c(x):
if x == 'val':
pass
else:
pass
x = 1
for i in range(10000000):
a(x)
b(x)
c(x)
And the cProfile profiler results:
So we can see that there is a very minute difference of ~0.7% between if not x == 'val':
and if x != 'val':
. Of these, if x != 'val':
is the fastest.
However, most surprisingly, we can see that
if x == 'val':
pass
else:
is in fact the fastest, and beats if x != 'val':
by ~0.3%. This isn't very readable, but I guess if you wanted a negligible performance improvement, one could go down this route.
Very easy, trial and error. Go to the cell you want the month in. Type the Month, go to the next cell and type the year, something weird will come up but then go to your number section click on the little arrow in the right bottom and highlight text and it will change to the year you originally typed
Change your import in test.py to:
from .hello import hello1
Use Object.entries()
function.
Object.entries(object)
return:
[
[key, value],
[key, value],
...
]
see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
{Object.entries(subjects).map(([key, subject], i) => (
<li className="travelcompany-input" key={i}>
<span className="input-label">key: {i} Name: {subject.name}</span>
</li>
))}
copy *.csv new.csv
No need for /b as csv isn't a binary file type.
Just use
plt.show()
This command tells the system to draw the plot in Pycharm.
Example:
plt.imshow(img.reshape((28, 28)))
plt.show()
A simple way is just...
Number(42).toString(2);
// "101010"
$('#some_select_box option:selected').remove();
There is a jQuery plugin available for watching change in DOM attributes,
https://github.com/darcyclarke/jQuery-Watch-Plugin
The plugin wraps All you need do is bind MutationObserver
You can then use it to watch the div using:
$("#selector").watch('css', function() {
console.log("Visibility: " + this.style.display == 'none'?'hidden':'shown'));
//or any random events
});
I found the InvokeRequired
not reliable, so I simply use
if (!this.IsHandleCreated)
{
this.CreateHandle();
}
In order to get the value
of any input field, you should always use $element.val()
because jQuery
handles to retrieve the correct value based on the browser of the element type.
Assuming the variable is something akin to:
CREATE TYPE [dbo].[IntList] AS TABLE(
[Value] [int] NOT NULL
)
And the Stored Procedure is using it in this form:
ALTER Procedure [dbo].[GetFooByIds]
@Ids [IntList] ReadOnly
As
You can create the IntList and call the procedure like so:
Declare @IDs IntList;
Insert Into @IDs Select Id From dbo.{TableThatHasIds}
Where Id In (111, 222, 333, 444)
Exec [dbo].[GetFooByIds] @IDs
Or if you are providing the IntList yourself
DECLARE @listOfIDs dbo.IntList
INSERT INTO @listofIDs VALUES (1),(35),(118);
You need to put your main code on the OnStart
method.
This other SO answer of mine might help.
You will need to put some code to enable debugging within visual-studio while maintaining your application valid as a windows-service. This other SO thread cover the issue of debugging a windows-service.
EDIT:
Please see also the documentation available here for the OnStart
method at the MSDN where one can read this:
Do not use the constructor to perform processing that should be in OnStart. Use OnStart to handle all initialization of your service. The constructor is called when the application's executable runs, not when the service runs. The executable runs before OnStart. When you continue, for example, the constructor is not called again because the SCM already holds the object in memory. If OnStop releases resources allocated in the constructor rather than in OnStart, the needed resources would not be created again the second time the service is called.
You can open the facebook app on button click as follows:-
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.findViewById(R.id.button1).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startNewActivity("com.facebook.katana");
}
});
}
public void startNewActivity( String packageName)
{
Intent intent = MainActivity.this.getPackageManager().getLaunchIntentForPackage(packageName);
if (intent != null)
{
// we found the activity
// now start the activity
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
else
{
// bring user to the market
// or let them choose an app?
intent = new Intent(Intent.ACTION_VIEW);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setData(Uri.parse("market://details?id="+packageName));
startActivity(intent);
}
}
Use print("use this bracket -sample text")
In Python 3 print "Hello world"
gives invalid syntax error.
To display string content in Python3 have to use this ("Hello world")
brackets.
If you want to allow client-side manipulation of persistent data, then it's best to just use cookies. That's what cookies were designed for.
I think, it should be like this:
class foo():
input = get_input(__qualname__)
You can use something like this,
var element = document.getElementById("yourDivID");
window.scrollTo(0,element.offsetHeight);
Can you use simply the SVG <title>
element and the default browser rendering it conveys? (Note: this is not the same as the title
attribute you can use on div/img/spans in html, it needs to be a child element named title
)
rect {_x000D_
width: 100%;_x000D_
height: 100%;_x000D_
fill: #69c;_x000D_
stroke: #069;_x000D_
stroke-width: 5px;_x000D_
opacity: 0.5_x000D_
}
_x000D_
<p>Mouseover the rect to see the tooltip on supporting browsers.</p>_x000D_
_x000D_
<svg xmlns="http://www.w3.org/2000/svg">_x000D_
<rect>_x000D_
<title>Hello, World!</title>_x000D_
</rect>_x000D_
</svg>
_x000D_
Alternatively, if you really want to show HTML in your SVG, you can embed HTML directly:
rect {_x000D_
width: 100%;_x000D_
height: 100%;_x000D_
fill: #69c;_x000D_
stroke: #069;_x000D_
stroke-width: 5px;_x000D_
opacity: 0.5_x000D_
}_x000D_
_x000D_
foreignObject {_x000D_
width: 100%;_x000D_
}_x000D_
_x000D_
svg div {_x000D_
text-align: center;_x000D_
line-height: 150px;_x000D_
}
_x000D_
<svg xmlns="http://www.w3.org/2000/svg">_x000D_
<rect/>_x000D_
<foreignObject>_x000D_
<body xmlns="http://www.w3.org/1999/xhtml">_x000D_
<div>_x000D_
Hello, <b>World</b>!_x000D_
</div>_x000D_
</body> _x000D_
</foreignObject>_x000D_
</svg>
_x000D_
…but then you'd need JS to turn the display on and off. As shown above, one way to make the label appear at the right spot is to wrap the rect and HTML in the same <g>
that positions them both together.
To use JS to find where an SVG element is on screen, you can use getBoundingClientRect()
, e.g. http://phrogz.net/svg/html_location_in_svg_in_html.xhtml
FOR
will give you any information you'll ever need to know about FOR loops, including examples on proper usage.
This is how I was able to trigger a button click when the page loads.
<li ng-repeat="a in array">
<a class="button" id="btn" ng-click="function(a)" index="$index" on-load-clicker>
{{a.name}}
</a>
</li>
A simple directive that takes the index from the ng-repeat and uses a condition to call the first button in the index and click it when the page loads.
angular
.module("myApp")
.directive('onLoadClicker', function ($timeout) {
return {
restrict: 'A',
scope: {
index: '=index'
},
link: function($scope, iElm) {
if ($scope.index == 0) {
$timeout(function() {
iElm.triggerHandler('click');
}, 0);
}
}
};
});
This was the only way I was able to even trigger an auto click programmatically in the first place. angular.element(document.querySelector('#btn')).click();
Did not work from the controller so making this simple directive seems most effective if you are trying to run a click on page load and you can specify which button to click by passing in the index. I got help through this stack-overflow answer from another post reference: https://stackoverflow.com/a/26495541/4684183 onLoadClicker Directive.
One more alternative, in the case you are working with the Appstore, need "Entitlements" and as such need to link with an Apple-Framework.
For Entitlements to work (e.g. GameCenter) you need to have a "Link Binary with Libraries"-buildstep and then link with "GameKit.framework". CMake "injects" the libraries on a "low level" into the commandline, hence Xcode doesn't really know about it, and as such you will not get GameKit enabled in the Capabilities screen.
One way to use CMake and have a "Link with Binaries"-buildstep is to generate the xcodeproj with CMake, and then use 'sed' to 'search & replace' and add the GameKit in the way XCode likes it...
The script looks like this (for Xcode 6.3.1).
s#\/\* Begin PBXBuildFile section \*\/#\/\* Begin PBXBuildFile section \*\/\
26B12AA11C10544700A9A2BA \/\* GameKit.framework in Frameworks \*\/ = {isa = PBXBuildFile; fileRef = 26B12AA01C10544700A9A2BA \/\* GameKit.framework xxx\*\/; };#g
s#\/\* Begin PBXFileReference section \*\/#\/\* Begin PBXFileReference section \*\/\
26B12AA01C10544700A9A2BA \/\* GameKit.framework xxx\*\/ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = GameKit.framework; path = System\/Library\/Frameworks\/GameKit.framework; sourceTree = SDKROOT; };#g
s#\/\* End PBXFileReference section \*\/#\/\* End PBXFileReference section \*\/\
\
\/\* Begin PBXFrameworksBuildPhase section \*\/\
26B12A9F1C10543B00A9A2BA \/\* Frameworks \*\/ = {\
isa = PBXFrameworksBuildPhase;\
buildActionMask = 2147483647;\
files = (\
26B12AA11C10544700A9A2BA \/\* GameKit.framework in Frameworks xxx\*\/,\
);\
runOnlyForDeploymentPostprocessing = 0;\
};\
\/\* End PBXFrameworksBuildPhase section \*\/\
#g
s#\/\* CMake PostBuild Rules \*\/,#\/\* CMake PostBuild Rules \*\/,\
26B12A9F1C10543B00A9A2BA \/\* Frameworks xxx\*\/,#g
s#\/\* Products \*\/,#\/\* Products \*\/,\
26B12AA01C10544700A9A2BA \/\* GameKit.framework xxx\*\/,#g
save this to "gamecenter.sed" and then "apply" it like this ( it changes your xcodeproj! )
sed -i.pbxprojbak -f gamecenter.sed myproject.xcodeproj/project.pbxproj
You might have to change the script-commands to fit your need.
Warning: it's likely to break with different Xcode-version as the project-format could change, the (hardcoded) unique number might not really by unique - and generally the solutions by other people are better - so unless you need to Support the Appstore + Entitlements (and automated builds), don't do this.
This is a CMake bug, see http://cmake.org/Bug/view.php?id=14185 and http://gitlab.kitware.com/cmake/cmake/issues/14185
I found a sort of a work around to this problem.
The line below throws generic array creation error
List<Person>[] personLists=new ArrayList<Person>()[10];
However if I encapsulate List<Person>
in a separate class, it works.
import java.util.ArrayList;
import java.util.List;
public class PersonList {
List<Person> people;
public PersonList()
{
people=new ArrayList<Person>();
}
}
You can expose people in the class PersonList thru a getter. The line below will give you an array, that has a List<Person>
in every element. In other words array of List<Person>
.
PersonList[] personLists=new PersonList[10];
I needed something like this in some code I was working on and this is what I did to get it to work. So far no problems.
/**
* @param request
* @param <T>
*/
public <T> void addToRequestQueue(Request<T> request) {
request.setRetryPolicy(new DefaultRetryPolicy(
MY_SOCKET_TIMEOUT_MS,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
getRequestQueue().add(request);
}
Try to replace your initialization code with:
ProcessStartInfo info
= new ProcessStartInfo(@"C:\Program Files\Internet Explorer\iexplore.exe");
Using non full filepath on Process.Start
only works if the file is found in System32 folder.
The gacutil
utility is not available on client machines, and the Window SDK license forbids redistributing it to your customers. When your customer can not, will not, (and really should not) download the 300MB Windows SDK as part of your application's install process.
There is an officially supported API you (or your installer) can use to register an assembly in the global assembly cache. Microsoft's Windows Installer technology knows how to call this API for you. You would have to consult your MSI installer utility (e.g. WiX, InnoSetup) for their own syntax of how to indicate you want an assembly to be registered in the Global Assembly Cache.
But MSI, and gacutil, are doing nothing special. They simply call the same API you can call yourself. For documentation on how to register an assembly through code, see:
KB317540: DOC: Global Assembly Cache (GAC) APIs Are Not Documented in the .NET Framework Software Development Kit (SDK) Documentation
var IAssemblyCache assemblyCache;
CreateAssemblyCache(ref assemblyCache, 0);
String manifestPath = "D:\Program Files\Contoso\Frobber\Grob.dll";
FUSION_INSTALL_REFERENCE refData;
refData.cbSize = SizeOf(refData); //The size of the structure in bytes
refData.dwFlags = 0; //Reserved, must be zero
refData.guidScheme = FUSION_REFCOUNT_FILEPATH_GUID; //The assembly is referenced by an application that is represented by a file in the file system. The szIdentifier field is the path to this file.
refData.szIdentifier = "D:\Program Files\Contoso\Frobber\SuperGrob.exe"; //A unique string that identifies the application that installed the assembly
refData.szNonCannonicalData = "Super cool grobber 9000"; //A string that is only understood by the entity that adds the reference. The GAC only stores this string
//Add a new assembly to the GAC.
//The assembly must be persisted in the file system and is copied to the GAC.
assemblyCache.InstallAssembly(
IASSEMBLYCACHE_INSTALL_FLAG_FORCE_REFRESH, //The files of an existing assembly are overwritten regardless of their version number
manifestPath, //A string pointing to the dynamic-linked library (DLL) that contains the assembly manifest. Other assembly files must reside in the same directory as the DLL that contains the assembly manifest.
refData);
More documentation before the KB article is deleted:
The fields of the structure are defined as follows:
- cbSize - The size of the structure in bytes.
- dwFlags - Reserved, must be zero.
- guidScheme - The entity that adds the reference.
- szIdentifier - A unique string that identifies the application that installed the assembly.
- szNonCannonicalData - A string that is only understood by the entity that adds the reference. The GAC only stores this string.
Possible values for the guidScheme field can be one of the following:
FUSION_REFCOUNT_MSI_GUID
- The assembly is referenced by an application that has been installed by using Windows Installer. The szIdentifier field is set to MSI, and szNonCannonicalData is set to Windows Installer. This scheme must only be used by Windows Installer itself.FUSION_REFCOUNT_UNINSTALL_SUBKEY_GUID
- The assembly is referenced by an application that appears in Add/Remove Programs. The szIdentifier field is the token that is used to register the application with Add/Remove programs.FUSION_REFCOUNT_FILEPATH_GUID
- The assembly is referenced by an application that is represented by a file in the file system. The szIdentifier field is the path to this file. FUSION_REFCOUNT_OPAQUE_STRING_GUID - The assembly is referenced by an application that is only represented by an opaque string. The szIdentifier is this opaque string. The GAC does not perform existence checking for opaque references when you remove this.
In addition to the above great answers using Threads, in case you have to use your main thread or prefer an async approach - I wrapped a short class around aio_timers Timer class (to enable repeating)
import asyncio
from aio_timers import Timer
class RepeatingAsyncTimer():
def __init__(self, interval, cb, *args, **kwargs):
self.interval = interval
self.cb = cb
self.args = args
self.kwargs = kwargs
self.aio_timer = None
self.start_timer()
def start_timer(self):
self.aio_timer = Timer(delay=self.interval,
callback=self.cb_wrapper,
callback_args=self.args,
callback_kwargs=self.kwargs
)
def cb_wrapper(self, *args, **kwargs):
self.cb(*args, **kwargs)
self.start_timer()
from time import time
def cb(timer_name):
print(timer_name, time())
print(f'clock starts at: {time()}')
timer_1 = RepeatingAsyncTimer(interval=5, cb=cb, timer_name='timer_1')
timer_2 = RepeatingAsyncTimer(interval=10, cb=cb, timer_name='timer_2')
clock starts at: 1602438840.9690785
timer_1 1602438845.980087
timer_2 1602438850.9806316
timer_1 1602438850.9808934
timer_1 1602438855.9863033
timer_2 1602438860.9868324
timer_1 1602438860.9876585
As of Java 11 one can use Pattern#asMatchPredicate
which returns Predicate<String>
.
String string = "stores%store%product";
String regex = "stores.*store.*product.*";
Predicate<String> matchesRegex = Pattern.compile(regex).asMatchPredicate();
boolean match = matchesRegex.test(string); // true
The method enables chaining with other String predicates, which is the main advantage of this method as long as the Predicate
offers and
, or
and negate
methods.
String string = "stores$store$product";
String regex = "stores.*store.*product.*";
Predicate<String> matchesRegex = Pattern.compile(regex).asMatchPredicate();
Predicate<String> hasLength = s -> s.length() > 20;
boolean match = hasLength.and(matchesRegex).test(string); // false
From Here you can deserialize an object from file in two way.
string json = File.ReadAllText(@"c:\myObj.json");
MyObject myObj = JsonConvert.DeserializeObject<MyObject>(json);
using (StreamReader file = File.OpenText(@"c:\myObj.json"))
{
JsonSerializer serializer = new JsonSerializer();
MyObject myObj2 = (MyObject)serializer.Deserialize(file, typeof(MyObject));
}
from here you can serialize an object to file in two way.
string json = JsonConvert.SerializeObject(myObj);
File.WriteAllText(@"c:\myObj.json", json);
using (StreamWriter file = File.CreateText(@"c:\myObj.json"))
{
JsonSerializer serializer = new JsonSerializer();
serializer.Serialize(file, myObj);
}
You can download Newtonsoft.Json from NuGet by following command
Install-Package Newtonsoft.Json
Answer is adding to @Sebas' answer - setting the collation of my local environment. Do not try this on production.
ALTER DATABASE databasename CHARACTER SET utf8 COLLATE utf8_unicode_ci;
ALTER TABLE tablename CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;
Source of this solution
Use toc.py which is a tiny python script which generates a table-of-contents for your markdown.
Usage:
<toc>
where you want the table of contents to be placed.$python toc.py README.md
(Use your markdown filename instead of README.md)Cheers!
it's so easy...converting a date to calendar like this:
Calendar cal=Calendar.getInstance();
DateFormat format=new SimpleDateFormat("yyyy/mm/dd");
format.format(date);
cal=format.getCalendar();
How about this one ? Simple and straightforward.
def is_list_sorted(al):
llength =len(al)
for i in range (llength):
if (al[i-1] > al[i]):
print(al[i])
print(al[i+1])
print('Not sorted')
return -1
else :
print('sorted')
return true
Stack corruptions ususally caused by buffer overflows. You can defend against them by programming defensively.
Whenever you access an array, put an assert before it to ensure the access is not out of bounds. For example:
assert(i + 1 < N);
assert(i < N);
a[i + 1] = a[i];
This makes you think about array bounds and also makes you think about adding tests to trigger them if possible. If some of these asserts can fail during normal use turn them into a regular if
.
Then go to php folder directory, Suppose your php folder is in xampp folder on your c drive. Your command would then be:
cd c:\xampp\php
After that, check your version:
php -v
This should give the following output:
PHP 7.2.0 (cli) (built: Nov 29 2017 00:17:00) ( ZTS MSVC15 (Visual C++ 2017) x86 ) Copyright (c) 1997-2017 The PHP Group Zend Engine v3.2.0, Copyright (c) 1998-2017 Zend Technologies
I have uploaded a youtube video myself about checking the version of PHP via command prompt in Bangla: https://www.youtube.com/watch?v=zVkhD_tv9ck
There is also a pure Python recursive option:
def checkEqual(lst):
if len(lst)==2 :
return lst[0]==lst[1]
else:
return lst[0]==lst[1] and checkEqual(lst[1:])
However for some reason it is in some cases two orders of magnitude slower than other options. Coming from C language mentality, I expected this to be faster, but it is not!
The other disadvantage is that there is recursion limit in Python which needs to be adjusted in this case. For example using this.
For non-object return types, you have to assign the value to the name of your function, like this:
Public Function test() As Integer
test = 1
End Function
Example usage:
Dim i As Integer
i = test()
If the function returns an Object type, then you must use the Set
keyword like this:
Public Function testRange() As Range
Set testRange = Range("A1")
End Function
Example usage:
Dim r As Range
Set r = testRange()
Note that assigning a return value to the function name does not terminate the execution of your function. If you want to exit the function, then you need to explicitly say Exit Function
. For example:
Function test(ByVal justReturnOne As Boolean) As Integer
If justReturnOne Then
test = 1
Exit Function
End If
'more code...
test = 2
End Function
Documentation: http://msdn.microsoft.com/en-us/library/office/gg264233%28v=office.14%29.aspx
GCC 4.9 introduces a newer C++ ABI version than your system libstdc++ has, so you need to tell the loader to use this newer version of the library by adding that path to LD_LIBRARY_PATH
. Unfortunately, I cannot tell you straight off where the libstdc++ so for your GCC 4.9 installation is located, as this depends on how you configured GCC. So you need something in the style of:
export LD_LIBRARY_PATH=/home/user/lib/gcc-4.9.0/lib:/home/user/lib/boost_1_55_0/stage/lib:$LD_LIBRARY_PATH
Note the actual path may be different (there might be some subdirectory hidden under there, like `x86_64-unknown-linux-gnu/4.9.0´ or similar).
According to the official Marshmallow permissions video (at the 4m 43s mark), you must open the application Settings page instead (from there it is one click to the Permissions page).
To open the settings page, you would do
Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
Uri uri = Uri.fromParts("package", getPackageName(), null);
intent.setData(uri);
startActivity(intent);
As others have said, you have to implement your own TryParse
. Simon Mourier is providing a full implementation which takes care of everything.
If you are using bitfield enums (i.e. flags), you also have to handle a string like "MyEnum.Val1|MyEnum.Val2"
which is a combination of two enum values. If you just call Enum.IsDefined
with this string, it will return false, even though Enum.Parse
handles it correctly.
Update
As mentioned by Lisa and Christian in the comments, Enum.TryParse
is now available for C# in .NET4 and up.
MSDN Docs
MongoDB can be confusing regarding the dbPath
folder.
When you run mongod
without dbpath
then the default path is /data/db
However when you start it as a service, e.g. systemctl start mongod
then it reads on configuration file, typially /etc/mongod.cfg
and in this config file the defaults are
Platform | Package Manager | Default storage.dbPath |
---|---|---|
RHEL / CentOS and Amazon | yum | /var/lib/mongo |
SUSE | zypper | /var/lib/mongo |
Ubuntu and Debian | apt | /var/lib/mongodb |
macOS | brew | /usr/local/var/mongodb |
So, by accident your MongoDB tries to access different data folders depending on how you start the service.
Havengard's answer doesn't seem to be strictly true. I've found that vw fills the viewport width, but doesn't account for the scrollbars. So, if your content is taller than the viewport (so that your site has a vertical scrollbar), then using vw results in a small horizontal scrollbar. I had to switch out width: 100vw
for width: 100%
to get rid of the horizontal scrollbar.
for ubuntu this work for me, you can take a screenshot of select window with this:
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gdk
from gi.repository import GdkPixbuf
import numpy as np
from Xlib.display import Display
#define the window name
window_name = 'Spotify'
#define xid of your select 'window'
def locate_window(stack,window):
disp = Display()
NET_WM_NAME = disp.intern_atom('_NET_WM_NAME')
WM_NAME = disp.intern_atom('WM_NAME')
name= []
for i, w in enumerate(stack):
win_id =w.get_xid()
window_obj = disp.create_resource_object('window', win_id)
for atom in (NET_WM_NAME, WM_NAME):
window_name=window_obj.get_full_property(atom, 0)
name.append(window_name.value)
for l in range(len(stack)):
if(name[2*l]==window):
return stack[l]
window = Gdk.get_default_root_window()
screen = window.get_screen()
stack = screen.get_window_stack()
myselectwindow = locate_window(stack,window_name)
img_pixbuf = Gdk.pixbuf_get_from_window(myselectwindow,*myselectwindow.get_geometry())
to transform pixbuf into array
def pixbuf_to_array(p):
w,h,c,r=(p.get_width(), p.get_height(), p.get_n_channels(), p.get_rowstride())
assert p.get_colorspace() == GdkPixbuf.Colorspace.RGB
assert p.get_bits_per_sample() == 8
if p.get_has_alpha():
assert c == 4
else:
assert c == 3
assert r >= w * c
a=np.frombuffer(p.get_pixels(),dtype=np.uint8)
if a.shape[0] == w*c*h:
return a.reshape( (h, w, c) )
else:
b=np.zeros((h,w*c),'uint8')
for j in range(h):
b[j,:]=a[r*j:r*j+w*c]
return b.reshape( (h, w, c) )
beauty_print = pixbuf_to_array(img_pixbuf)
StringBuilder sb = new StringBuilder();
sb.Append("Line 1");
sb.Append(System.Environment.NewLine); //Change line
sb.Append("\t"); //Add tabulation
sb.Append("Line 2");
using (StreamWriter sw = new StreamWriter("example.txt"))
{
sw.Write(sb.ToString());
}
You can find detailed documentation on TAB (and other escape character here).
A perl-solution:
perl -nE 'say $1 if /id=(\d+)/' filename
In vs2012 just try to create a Build definition "Test Build" using the default TFS template "DefaultTemplate....xaml" (usually a copy of it)
It will fail with the usual self-explaining-error: "MSBUILD : error MSB1008: Only one project can be specified.Switch: Activities"
Off course somewhere in the default TFS template some "
are missing so msbuild will receive as parameter a non escaped directory containing spaces so will result in multiple projects(?!)
So NEVER use spaces in you TFS Build Definition names, pretty sad and simple at the same time
Seems a bit too late, but there is a PPA repository with SmartGit, enjoy! =)
#include <stdio.h>
#include <stdlib.h>
int func(char a, char b, char c) /* demonstration that char on stack is promoted to int !!!
note: this promotion is NOT integer promotion, but promotion during handling of the stack. don't confuse the two */
{
const char *p = &a;
printf("a=%d\n"
"b=%d\n"
"c=%d\n", *p, p[-(int)sizeof(int)], p[-(int)sizeof(int) * 2]); // don't do this. might probably work on x86 with gcc (but again: don't do this)
}
int main(void)
{
func(1, 2, 3);
//printf with %d treats its argument as int (argument must be int or smaller -> works because of conversion to int when on stack -- see demo above)
printf("%d, %d, %d\n", (long long) 1, 2, 3); // don't do this! Argument must be int or smaller type (like char... which is converted to int when on the stack -- see above)
// backslash followed by number is a oct VALUE
printf("%d\n", '\377'); /* prints -1 -> IF char is signed char: char literal has all bits set and is thus value -1.
-> char literal is then integer promoted to int. (this promotion has nothing to do with the stack. don't confuse the two!!!) */
/* prints 255 -> IF char is unsigned char: char literal has all bits set and is thus value 255.
-> char literal is then integer promoted to int */
// backslash followed by x is a hex VALUE
printf("%d\n", '\xff'); /* prints -1 -> IF char is signed char: char literal has all bits set and is thus value -1.
-> char literal is then integer promoted to int */
/* prints 255 -> IF char is unsigned char: char literal has all bits set and is thus value 255.
-> char literal is then integer promoted to int */
printf("%d\n", 255); // prints 255
printf("%d\n", (char)255); // prints -1 -> 255 is cast to char where it is -1
printf("%d\n", '\n'); // prints 10 -> Ascii newline has VALUE 10. The char 10 is integer promoted to int 10
printf("%d\n", sizeof('\n')); // prints 4 -> Ascii newline is char, but integer promoted to int. And sizeof(int) is 4 (on many architectures)
printf("%d\n", sizeof((char)'\n')); // prints 1 -> Switch off integer promotion via cast!
return 0;
}
This is the perfect kind of field to define as CHAR 36, by the way, not VARCHAR 36, since each value will have the exact same length. And you'll use less storage space, since you don't need to store the data length for each value, just the value.
This is another way:
end=5
for i in $(bash -c "echo {1..${end}}"); do echo $i; done
Here's how you convert a String to a char array:
String str = "someString";
char[] charArray = str.toCharArray();
I'd recommend that you use an IDE when programming, to easily see which methods a class contains (in this case you'd be able to find toCharArray()
) and compile errors like the one you have above. You should also familiarize yourself with the documentation, which in this case would be this String documentation.
Also, always post which compile errors you're getting. In this case it was easy to spot, but when it isn't you won't be able to get any answers if you don't include it in the post.
Since Guava 15.0 (released September 2013) there's EvictingQueue:
A non-blocking queue which automatically evicts elements from the head of the queue when attempting to add new elements onto the queue and it is full. An evicting queue must be configured with a maximum size. Each time an element is added to a full queue, the queue automatically removes its head element. This is different from conventional bounded queues, which either block or reject new elements when full.
This class is not thread-safe, and does not accept null elements.
Example use:
EvictingQueue<String> queue = EvictingQueue.create(2);
queue.add("a");
queue.add("b");
queue.add("c");
queue.add("d");
System.out.print(queue); //outputs [c, d]
hash.collect { |k, v| v }
#returns [["a", "b", "c"], ["b", "c"]]
Enumerable#collect
takes a block, and returns an array of the results of running the block once on every element of the enumerable. So this code just ignores the keys and returns an array of all the values.
The Enumerable
module is pretty awesome. Knowing it well can save you lots of time and lots of code.
Well, you must first drop the auto_increment
and primary key
you have and then add yours, as follows:
-- drop auto_increment capability
alter table `users` modify column id INT NOT NULL;
-- in one line, drop primary key and rebuild one
alter table `users` drop primary key, add primary key(id);
-- re add the auto_increment capability, last value is remembered
alter table `users` modify column id INT NOT NULL AUTO_INCREMENT;
You can always add the @Produces("application/json")
above your web method or specify produces="application/json"
to return json. Then on top of the Student
class you can add @XmlRootElement
from javax.xml.bind.annotation
package.
Please note, it might not be a good idea to directly return model classes. Just a suggestion.
HTH.
Change the theme in your manifest.
If you want to hide nav bar for one activity you can use this:
<activity
android:name="Activity Name"
android:theme="@android:style/Theme.Black.NoTitleBar"
android:label="@string/app_name" >
If you want to hide nav bar for entire application you can use this:
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@android:style/Theme.Black.NoTitleBar" >
Ref: https://developer.mozilla.org/en-US/docs/Web/API/Cache/delete
Cache.delete()
Method
Syntax:
cache.delete(request, {options}).then(function(found) {
// your cache entry has been deleted if found
});
If you are running an Intel processor make sure the HAXM (Intel® Hardware Accelerated Execution Manager) installer is installed via SDK Manager by checking this option in SDK Manager. And then run the HAXM installer ext via the path below.
your_sdk_folder\extras\intel\Hardware_Accelerated_Execution_Manager\intelhaxm.exe
Also check the RAM size allocated while doing HAX installation so it fits the RAM size of your emulator.
This video shows all the required steps which may help you to solve the problem.
This video will also help you if you face a problem after installing HAXM.
To create a test case template:
"New" -> "JUnit Test Case" -> Select "Class under test" -> Select "Available methods". I think the wizard is quite easy for you.
First Try to set proxy using the following command
SET HTTPS_PROXY=http://proxy.***.com:PORT#
Then Try using the command
pip install ModuleName
Check out Regular Expressions.
you can achive it like this
<input type="text" pInputText (keypress)="onlyNumberKey($event)" maxlength="3">
onlyNumberKey(event) {
return (event.charCode == 8 || event.charCode == 0) ? null : event.charCode >= 48 && event.charCode <= 57;
}
//for Decimal you can use this as
onlyDecimalNumberKey(event) {
let charCode = (event.which) ? event.which : event.keyCode;
if (charCode != 46 && charCode > 31
&& (charCode < 48 || charCode > 57))
return false;
return true;
}
hope this will help you.
the function
find ~/ -name '.DS_Store' -delete
, removed the .DS store files temporarily. But am not sure , whether the files will came back on the Mac. Also i noticed something peculiar, the "DS_Store" start coming to the Mac after installing 'ATOM'. So guys please make it sure to scan properly your third party software before installing them. Best
This looks a little ugly. Is it possible to cast an entire stream to a different type? Like cast
Stream<Object>
to aStream<Client>
?
No that wouldn't be possible. This is not new in Java 8. This is specific to generics. A List<Object>
is not a super type of List<String>
, so you can't just cast a List<Object>
to a List<String>
.
Similar is the issue here. You can't cast Stream<Object>
to Stream<Client>
. Of course you can cast it indirectly like this:
Stream<Client> intStream = (Stream<Client>) (Stream<?>)stream;
but that is not safe, and might fail at runtime. The underlying reason for this is, generics in Java are implemented using erasure. So, there is no type information available about which type of Stream
it is at runtime. Everything is just Stream
.
BTW, what's wrong with your approach? Looks fine to me.
For an earlier version of junit, you can do
Class<Map<String, String>> mapClass = (Class) Map.class;
ArgumentCaptor<Map<String, String>> mapCaptor = ArgumentCaptor.forClass(mapClass);
There may be other ways to get your desired result.
Declare @a int
Declare @b int
SET @a = 3
SET @b=2
SELECT cast((cast(@a as float)/ cast(@b as float)) as float)
ok, so my problem was that I tried to install the package with yum which is the primary tool for getting, installing, deleting, querying, and managing Red Hat Enterprise Linux RPM software packages from official Red Hat software repositories, as well as other third-party repositories.
But I'm using ubuntu and The usual way to install packages on the command line in Ubuntu is with apt-get. so the right command was:
sudo apt-get install libstdc++.i686
For the record, if the script is run with set -e
(or #!/bin/bash -e
) and you therefore cannot check $?
directly (since the script would terminate on any return code other than zero), but want to handle a specific code, @gboffis comment is great:
/some/command || error_code=$?
if [ "${error_code}" -eq 2 ]; then
...
If you need to process both the input file and user input (or anything else from stdin), then use the following solution:
#!/bin/bash
exec 3<"$1"
while IFS='' read -r -u 3 line || [[ -n "$line" ]]; do
read -p "> $line (Press Enter to continue)"
done
Based on the accepted answer and on the bash-hackers redirection tutorial.
Here, we open the file descriptor 3 for the file passed as the script argument and tell read
to use this descriptor as input (-u 3
). Thus, we leave the default input descriptor (0) attached to a terminal or another input source, able to read user input.
As others have mentioned, app on Android can't write a file to any folder the internal storage but their own private storage (which is under /data/data/PACKAGE_NAME ).
You should use the API to get the correct path that is allowed for your app.
read this .
Aside from the css reset, I also added the following to the css of my div
container and that fixed it.
position: relative;
top: -22px;
In these cases I like a visual that can hopefully explain this:
git reset --[hard/mixed/soft]
:
So each effect different scopes
Default Usage
Get the meta for all keys:
<?php $meta = get_post_meta($post_id); ?>
Get the meta for a single key:
<?php $key_1_values = get_post_meta( 76, 'key_1' ); ?>
for example:
$myvals = get_post_meta($post_id);
foreach($myvals as $key=>$val)
{
echo $key . ' : ' . $val[0] . '<br/>';
}
Note: some unwanted meta keys starting with "underscore(_)" will also come, so you will need to filter them out.
For reference: See Codex
Laravel - htmlspecialchars() expects parameter 1 to be string, object given.
thank me latter.........................
when you send or get array from contrller or function but try to print as single value or single variable in laravel blade file so it throws an error
->use any think who convert array into string it work.
solution: 1)run the foreach loop and get single single value and print. 2)The implode() function returns a string from the elements of an array. {{ implode($your_variable,',') }}
implode is best way to do it and its 100% work.
There are multiple ways to make components communicate. Some can be suited to your usecase. Here is a list of some I've found useful to know.
const Child = ({fromChildToParentCallback}) => (
<div onClick={() => fromChildToParentCallback(42)}>
Click me
</div>
);
class Parent extends React.Component {
receiveChildValue = (value) => {
console.log("Parent received value from child: " + value); // value is 42
};
render() {
return (
<Child fromChildToParentCallback={this.receiveChildValue}/>
)
}
}
Here the child component will call a callback provided by the parent with a value, and the parent will be able to get the value provided by the children in the parent.
If you build a feature/page of your app, it's better to have a single parent managing the callbacks/state (also called container
or smart component
), and all childs to be stateless, only reporting things to the parent. This way you can easily "share" the state of the parent to any child that need it.
React Context permits to hold state at the root of your component hierarchy, and be able to inject this state easily into very deeply nested components, without the hassle to have to pass down props to every intermediate components.
Until now, context was an experimental feature, but a new API is available in React 16.3.
const AppContext = React.createContext(null)
class App extends React.Component {
render() {
return (
<AppContext.Provider value={{language: "en",userId: 42}}>
<div>
...
<SomeDeeplyNestedComponent/>
...
</div>
</AppContext.Provider>
)
}
};
const SomeDeeplyNestedComponent = () => (
<AppContext.Consumer>
{({language}) => <div>App language is currently {language}</div>}
</AppContext.Consumer>
);
The consumer is using the render prop / children function pattern
Check this blog post for more details.
Before React 16.3, I'd recommend using react-broadcast which offer quite similar API, and use former context API.
Use a portal when you'd like to keep 2 components close together to make them communicate with simple functions, like in normal parent / child, but you don't want these 2 components to have a parent/child relationship in the DOM, because of visual / CSS constraints it implies (like z-index, opacity...).
In this case you can use a "portal". There are different react libraries using portals, usually used for modals, popups, tooltips...
Consider the following:
<div className="a">
a content
<Portal target="body">
<div className="b">
b content
</div>
</Portal>
</div>
Could produce the following DOM when rendered inside reactAppContainer
:
<body>
<div id="reactAppContainer">
<div className="a">
a content
</div>
</div>
<div className="b">
b content
</div>
</body>
You define a slot somewhere, and then you fill the slot from another place of your render tree.
import { Slot, Fill } from 'react-slot-fill';
const Toolbar = (props) =>
<div>
<Slot name="ToolbarContent" />
</div>
export default Toolbar;
export const FillToolbar = ({children}) =>
<Fill name="ToolbarContent">
{children}
</Fill>
This is a bit similar to portals except the filled content will be rendered in a slot you define, while portals generally render a new dom node (often a children of document.body)
Check react-slot-fill library
As stated in the React documentation:
For communication between two components that don't have a parent-child relationship, you can set up your own global event system. Subscribe to events in componentDidMount(), unsubscribe in componentWillUnmount(), and call setState() when you receive an event.
There are many things you can use to setup an event bus. You can just create an array of listeners, and on event publish, all listeners would receive the event. Or you can use something like EventEmitter or PostalJs
Flux is basically an event bus, except the event receivers are stores. This is similar to the basic event bus system except the state is managed outside of React
Original Flux implementation looks like an attempt to do Event-sourcing in a hacky way.
Redux is for me the Flux implementation that is the closest from event-sourcing, an benefits many of event-sourcing advantages like the ability to time-travel. It is not strictly linked to React and can also be used with other functional view libraries.
Egghead's Redux video tutorial is really nice and explains how it works internally (it really is simple).
Cursors are coming from ClojureScript/Om and widely used in React projects. They permit to manage the state outside of React, and let multiple components have read/write access to the same part of the state, without needing to know anything about the component tree.
Many implementations exists, including ImmutableJS, React-cursors and Omniscient
Edit 2016: it seems that people agree cursors work fine for smaller apps but it does not scale well on complex apps. Om Next does not have cursors anymore (while it's Om that introduced the concept initially)
The Elm architecture is an architecture proposed to be used by the Elm language. Even if Elm is not ReactJS, the Elm architecture can be done in React as well.
Dan Abramov, the author of Redux, did an implementation of the Elm architecture using React.
Both Redux and Elm are really great and tend to empower event-sourcing concepts on the frontend, both allowing time-travel debugging, undo/redo, replay...
The main difference between Redux and Elm is that Elm tend to be a lot more strict about state management. In Elm you can't have local component state or mount/unmount hooks and all DOM changes must be triggered by global state changes. Elm architecture propose a scalable approach that permits to handle ALL the state inside a single immutable object, while Redux propose an approach that invites you to handle MOST of the state in a single immutable object.
While the conceptual model of Elm is very elegant and the architecture permits to scale well on large apps, it can in practice be difficult or involve more boilerplate to achieve simple tasks like giving focus to an input after mounting it, or integrating with an existing library with an imperative interface (ie JQuery plugin). Related issue.
Also, Elm architecture involves more code boilerplate. It's not that verbose or complicated to write but I think the Elm architecture is more suited to statically typed languages.
Libraries like RxJS, BaconJS or Kefir can be used to produce FRP streams to handle communication between components.
You can try for example Rx-React
I think using these libs is quite similar to using what the ELM language offers with signals.
CycleJS framework does not use ReactJS but uses vdom. It share a lot of similarities with the Elm architecture (but is more easy to use in real life because it allows vdom hooks) and it uses RxJs extensively instead of functions, and can be a good source of inspiration if you want to use FRP with React. CycleJs Egghead videos are nice to understand how it works.
CSP (Communicating Sequential Processes) are currently popular (mostly because of Go/goroutines and core.async/ClojureScript) but you can use them also in javascript with JS-CSP.
James Long has done a video explaining how it can be used with React.
A saga is a backend concept that comes from the DDD / EventSourcing / CQRS world, also called "process manager". It is being popularized by the redux-saga project, mostly as a replacement to redux-thunk for handling side-effects (ie API calls etc). Most people currently think it only services for side-effects but it is actually more about decoupling components.
It is more of a compliment to a Flux architecture (or Redux) than a totally new communication system, because the saga emit Flux actions at the end. The idea is that if you have widget1 and widget2, and you want them to be decoupled, you can't fire action targeting widget2 from widget1. So you make widget1 only fire actions that target itself, and the saga is a "background process" that listens for widget1 actions, and may dispatch actions that target widget2. The saga is the coupling point between the 2 widgets but the widgets remain decoupled.
If you are interested take a look at my answer here
If you want to see an example of the same little app using these different styles, check the branches of this repository.
I don't know what is the best option in the long term but I really like how Flux looks like event-sourcing.
If you don't know event-sourcing concepts, take a look at this very pedagogic blog: Turning the database inside out with apache Samza, it is a must-read to understand why Flux is nice (but this could apply to FRP as well)
I think the community agrees that the most promising Flux implementation is Redux, which will progressively allow very productive developer experience thanks to hot reloading. Impressive livecoding ala Bret Victor's Inventing on Principle video is possible!
The code above and most of the solutions are perfect. However, I think the most liked one "short answer" which is incomplete.
So here's the entire answer. in JavaScript with native Support for IE 7 as well.
var form = document.getElementById("testForm");
form.addEventListener("submit",function(e){e.preventDefault(); return false;});
This solution will now prevent the user from submit using the enter Key and will not reload the page, or take you to the top of the page, if your form is somewhere below.
C++20 std::format
This is now the cleanest method in my opinion, as it does not pollute std::cout
state with std::hex
:
main.cpp
#include <format>
#include <string>
int main() {
std::cout << std::format("{:x} {:#x} {}\n", 16, 17, 18);
}
Expected output:
10 0x11 18
Not yet implemented on GCC 10.0.1, Ubuntu 20.04.
But the awesome library that became C++20 and should be the same worked once installed with:
git clone https://github.com/fmtlib/fmt
cd fmt
git checkout 061e364b25b5e5ca7cf50dd25282892922375ddc
mkdir build
cmake ..
sudo make install
main2.cpp
#include <fmt/core.h>
#include <iostream>
int main() {
std::cout << fmt::format("{:x} {:#x} {}\n", 16, 17, 18);
}
Compile and run:
g++ -ggdb3 -O0 -std=c++11 -Wall -Wextra -pedantic -o main2.out main2.cpp -lfmt
./main2.out
Documented at:
More info at: std::string formatting like sprintf
Pre-C++20: cleanly print and restore std::cout
to previous state
main.cpp
#include <iostream>
#include <string>
int main() {
std::ios oldState(nullptr);
oldState.copyfmt(std::cout);
std::cout << std::hex;
std::cout << 16 << std::endl;
std::cout.copyfmt(oldState);
std::cout << 17 << std::endl;
}
Compile and run:
g++ -ggdb3 -O0 -std=c++11 -Wall -Wextra -pedantic -o main.out main.cpp
./main.out
Output:
10
17
More details: Restore the state of std::cout after manipulating it
Tested on GCC 10.0.1, Ubuntu 20.04.
There is a great implementation of NavigationDrawer
that follows the Google Material Design Guidelines (and compatible down to API 10) - The MaterialDrawer library (link to GitHub). As of time of writing, May 2017, it's actively supported.
It's available in Maven Central repo. Gradle dependency setup:
compile 'com.mikepenz:materialdrawer:5.9.1'
Maven dependency setup:
<dependency>
<groupId>com.mikepenz</groupId>
<artifactId>materialdrawer</artifactId>
<version>5.9.1</version>
</dependency>
I too got this same error on my image handler that I wrote. I got it like 30 times a day on site with heavy traffic, managed to reproduce it also. You get this when a user cancels the request (closes the page or his internet connection is interrupted for example), in my case in the following row:
myContext.Response.OutputStream.Write(buffer, 0, bytesRead);
I can’t think of any way to prevent it but maybe you can properly handle this. Ex:
try
{
…
myContext.Response.OutputStream.Write(buffer, 0, bytesRead);
…
}catch (HttpException ex)
{
if (ex.Message.StartsWith("The remote host closed the connection."))
;//do nothing
else
//handle other errors
}
catch (Exception e)
{
//handle other errors
}
finally
{//close streams etc..
}
Your quotes only need to surround the value part of the attribute-equals selector, [attr='val']
, like this:
$('a#check_var').click(function() {
alert($("input:radio[name='r']:checked").val()+ ' '+
$("input:radio[name='s']:checked").val());
});?
In package.json
set the following command (example for running on port 82)
"start": "set PORT=82 && ng serve --ec=true"
then npm start
append
is a jQuery method to append some content or HTML to an element.
$('#example').append('Some text or HTML');
appendChild
is a pure DOM method for adding a child element.
document.getElementById('example').appendChild(newElement);
I ran into a similar problem. Simply moving my tsconfig.json from the root of my project up to a different scope helped. In my project, I moved tsconfig.json from the root up to wwwroot.
As you say, local variables and references are stored on the stack. When a method returns, the stack pointer is simply moved back to where it was before the method started, that is, all local data is "removed from the stack". Therefore, there is no garbage collection needed on the stack, that only happens in the heap.
To answer your specific questions:
It's possible to remove the workspace in Eclipse without much complications. The options are available under Preferences->General->Startup and Shutdown->Workspaces.
Note that this does not actually delete the files from the system, it simply removes it from the list of suggested workspaces. It changes the org.eclipse.ui.ide.prefs
file in Jon's answer from within Eclipse.
Multiple column ordering depends on both column's corresponding values: Here is my table example where are two columns named with Alphabets and Numbers and the values in these two columns are asc and desc orders.
Now I perform Order By in these two columns by executing below command:
Now again I insert new values in these two columns, where Alphabet value in ASC order:
and the columns in Example table look like this. Now again perform the same operation:
You can see the values in the first column are in desc order but second column is not in ASC order.
use
%cd SwitchFrequencyAnalysis
to change the current working directory for the notebook environment (and not just the subshell that runs your ! command).
you can confirm it worked with the pwd
command like this:
!pwd
further information about jupyter / ipython magics: http://ipython.readthedocs.io/en/stable/interactive/magics.html#magic-cd
The join feature supported by Mongodb 3.2 and later versions. You can use joins by using aggregate query.
You can do it using below example :
db.users.aggregate([
// Join with user_info table
{
$lookup:{
from: "userinfo", // other table name
localField: "userId", // name of users table field
foreignField: "userId", // name of userinfo table field
as: "user_info" // alias for userinfo table
}
},
{ $unwind:"$user_info" }, // $unwind used for getting data in object or for one record only
// Join with user_role table
{
$lookup:{
from: "userrole",
localField: "userId",
foreignField: "userId",
as: "user_role"
}
},
{ $unwind:"$user_role" },
// define some conditions here
{
$match:{
$and:[{"userName" : "admin"}]
}
},
// define which fields are you want to fetch
{
$project:{
_id : 1,
email : 1,
userName : 1,
userPhone : "$user_info.phone",
role : "$user_role.role",
}
}
]);
This will give result like this:
{
"_id" : ObjectId("5684f3c454b1fd6926c324fd"),
"email" : "[email protected]",
"userName" : "admin",
"userPhone" : "0000000000",
"role" : "admin"
}
Hope this will help you or someone else.
Thanks
var request = URLRequest(url: URL(string: "your URL")!)
request.httpMethod = "POST"
let postString = String(format: "email=%@&lang=%@", arguments: [txt_emailVirify.text!, language!])
print(postString)
emailString = txt_emailVirify.text!
request.httpBody = postString.data(using: .utf8)
request.addValue("delta141forceSEAL8PARA9MARCOSBRAHMOS", forHTTPHeaderField: "Authorization")
request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil
else
{
print("error=\(String(describing: error))")
return
}
do
{
let dictionary = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as! NSDictionary
print(dictionary)
let status = dictionary.value(forKey: "status") as! String
let sts = Int(status)
DispatchQueue.main.async()
{
if sts == 200
{
print(dictionary)
}
else
{
self.alertMessageOk(title: self.Alert!, message: dictionary.value(forKey: "message") as! String)
}
}
}
catch
{
print(error)
}
}
task.resume()
Use Directory.GetDirectories
to get the subdirectories of the directory specified by "your_directory_path". The result is an array of strings.
var directories = Directory.GetDirectories("your_directory_path");
By default, that only returns subdirectories one level deep. There are options to return all recursively and to filter the results, documented here, and shown in Clive's answer.
Avoiding an UnauthorizedAccessException
It's easily possible that you'll get an UnauthorizedAccessException
if you hit a directory to which you don't have access.
You may have to create your own method that handles the exception, like this:
public class CustomSearcher
{
public static List<string> GetDirectories(string path, string searchPattern = "*",
SearchOption searchOption = SearchOption.AllDirectories)
{
if (searchOption == SearchOption.TopDirectoryOnly)
return Directory.GetDirectories(path, searchPattern).ToList();
var directories = new List<string>(GetDirectories(path, searchPattern));
for (var i = 0; i < directories.Count; i++)
directories.AddRange(GetDirectories(directories[i], searchPattern));
return directories;
}
private static List<string> GetDirectories(string path, string searchPattern)
{
try
{
return Directory.GetDirectories(path, searchPattern).ToList();
}
catch (UnauthorizedAccessException)
{
return new List<string>();
}
}
}
And then call it like this:
var directories = CustomSearcher.GetDirectories("your_directory_path");
This traverses a directory and all its subdirectories recursively. If it hits a subdirectory that it cannot access, something that would've thrown an UnauthorizedAccessException
, it catches the exception and just returns an empty list for that inaccessible directory. Then it continues on to the next subdirectory.
Kotlin has an one-liner
context.cacheDir.deleteRecursively()
If you're using Kotlin, I achieved this by using a Kotlin extension:
fun TextView.htmlText(text: String){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
setText(Html.fromHtml(text, Html.FROM_HTML_MODE_LEGACY))
} else {
setText(Html.fromHtml(text))
}
}
Then call it like:
textView.htmlText(yourHtmlText)
yes, just do the following
git checkout feature_x
git push origin feature_x
click here in settings, one pop up window will get open. There we have switcher to make SSL verification certificate (Off)
Cast the operands to floats:
float ans = (float)a / (float)b;
Sub MakeAllPath(ByVal PS$)
Dim PP$
If PS <> "" Then
' chop any end name
PP = Left(PS, InStrRev(PS, "\") - 1)
' if not there so build it
If Dir(PP, vbDirectory) = "" Then
MakeAllPath Left(PP, InStrRev(PS, "\") - 1)
' if not back to drive then build on what is there
If Right(PP, 1) <> ":" Then MkDir PP
End If
End If
End Sub
'Martins loop version above is better than MY recursive version
'so improve to below
Sub MakeAllDir(PathS$)
' format "K:\firstfold\secf\fold3"
If Dir(PathS) = vbNullString Then
' else do not bother
Dim LI&, MYPath$, BuildPath$, PathStrArray$()
PathStrArray = Split(PathS, "\")
BuildPath = PathStrArray(0) & "\" '
If Dir(BuildPath) = vbNullString Then
' trap problem of no drive :\ path given
If vbYes = MsgBox(PathStrArray(0) & "< not there for >" & PathS & " try to append to " & CurDir, vbYesNo) Then
BuildPath = CurDir & "\"
Else
Exit Sub
End If
End If
'
' loop through required folders
'
For LI = 1 To UBound(PathStrArray)
BuildPath = BuildPath & PathStrArray(LI) & "\"
If Dir(BuildPath, vbDirectory) = vbNullString Then MkDir BuildPath
Next LI
End If
' was already there
End Sub
' use like
'MakeAllDir "K:\bil\joan\Johno"
'MakeAllDir "K:\bil\joan\Fredso"
'MakeAllDir "K:\bil\tom\wattom"
'MakeAllDir "K:\bil\herb\watherb"
'MakeAllDir "K:\bil\herb\Jim"
'MakeAllDir "bil\joan\wat" ' default drive
If we focus on software licensing, I would recommend to take a look at another Stack Overflow answer I wrote here to get some inspiration of how a license key verification system can be constructed.
There is an open-source library on GitHub that can help you with the license verification bit.
You can install it by pip install licensing
and then add the following code:
pubKey = "<RSAKeyValue><Modulus>sGbvxwdlDbqFXOMlVUnAF5ew0t0WpPW7rFpI5jHQOFkht/326dvh7t74RYeMpjy357NljouhpTLA3a6idnn4j6c3jmPWBkjZndGsPL4Bqm+fwE48nKpGPjkj4q/yzT4tHXBTyvaBjA8bVoCTnu+LiC4XEaLZRThGzIn5KQXKCigg6tQRy0GXE13XYFVz/x1mjFbT9/7dS8p85n8BuwlY5JvuBIQkKhuCNFfrUxBWyu87CFnXWjIupCD2VO/GbxaCvzrRjLZjAngLCMtZbYBALksqGPgTUN7ZM24XbPWyLtKPaXF2i4XRR9u6eTj5BfnLbKAU5PIVfjIS+vNYYogteQ==</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>"
res = Key.activate(token="WyIyNTU1IiwiRjdZZTB4RmtuTVcrQlNqcSszbmFMMHB3aWFJTlBsWW1Mbm9raVFyRyJd",\
rsa_pub_key=pubKey,\
product_id=3349, key="ICVLD-VVSZR-ZTICT-YKGXL", machine_code=Helpers.GetMachineCode())
if res[0] == None not Helpers.IsOnRightMachine(res[0]):
print("An error occured: {0}".format(res[1]))
else:
print("Success")
You can read more about the way the RSA public key, etc are configured here.
Perform the move directly in the repository.
You can use this variation:
import pandas as pd
vals = {
'name' : ['n1', 'n2', 'n3', 'n4', 'n5', 'n6', 'n7'],
'gender' : ['m', 'f', 'f', 'f', 'f', 'c', 'c'],
'age' : [39, 12, 27, 13, 36, 29, 10],
'education' : ['ma', None, 'school', None, 'ba', None, None]
}
df_vals = pd.DataFrame(vals) #converting dict to dataframe
This will output(** - highlighting only desired rows):
age education gender name
0 39 ma m n1 **
1 12 None f n2
2 27 school f n3 **
3 13 None f n4
4 36 ba f n5 **
5 29 None c n6
6 10 None c n7
So to drop everything that does not have an 'education' value, use the code below:
df_vals = df_vals[~df_vals['education'].isnull()]
('~' indicating NOT)
Result:
age education gender name
0 39 ma m n1
2 27 school f n3
4 36 ba f n5
#!/bin/sh
sed '1,2d' "$0"|$(which groovy) /dev/stdin; exit;
println("hello");
The accepted answer is through but there is official explanation on this:
The WebApplicationContext is an extension of the plain ApplicationContext that has some extra features necessary for web applications. It differs from a normal ApplicationContext in that it is capable of resolving themes (see Using themes), and that it knows which Servlet it is associated with (by having a link to the ServletContext). The WebApplicationContext is bound in the ServletContext, and by using static methods on the RequestContextUtils class you can always look up the WebApplicationContext if you need access to it.
Cited from Spring web framework reference
By the way servlet and root context are both webApplicationContext:
I can think of a cheeky way to do it, I don't think this will be the best option but it will work.
Create the header as a separate table then place the other in a div and set a max size, then allow the scroll to come in by using overflow
.
table {_x000D_
width: 500px;_x000D_
}_x000D_
_x000D_
.scroll {_x000D_
max-height: 60px;_x000D_
overflow: auto;_x000D_
}
_x000D_
<table border="1">_x000D_
<tr>_x000D_
<th>head1</th>_x000D_
<th>head2</th>_x000D_
<th>head3</th>_x000D_
<th>head4</th>_x000D_
</tr>_x000D_
</table>_x000D_
<div class="scroll">_x000D_
<table>_x000D_
<tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
<tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
<tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
<tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
<tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
<tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
<tr><td>More Text</td><td>More Text</td><td>More Text</td><td>More Text</td></tr>_x000D_
<tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
<tr><td>Even More Text Text</td><td>Even More Text Text</td><td>Even More Text Text</td><td>Even More Text Text</td></tr>_x000D_
</table>_x000D_
</div>
_x000D_
With a bit hack you can use HashSet with duplicate keys. WARNING: this is heavily HashSet implementation dependant.
class MultiKeyPair {
Object key;
Object value;
public MultiKeyPair(Object key, Object value) {
this.key = key;
this.value = value;
}
@Override
public int hashCode() {
return key.hashCode();
}
}
class MultiKeyList extends MultiKeyPair {
ArrayList<MultiKeyPair> list = new ArrayList<MultiKeyPair>();
public MultiKeyList(Object key) {
super(key, null);
}
@Override
public boolean equals(Object obj) {
list.add((MultiKeyPair) obj);
return false;
}
}
public static void main(String[] args) {
HashSet<MultiKeyPair> set = new HashSet<MultiKeyPair>();
set.add(new MultiKeyPair("A","a1"));
set.add(new MultiKeyPair("A","a2"));
set.add(new MultiKeyPair("B","b1"));
set.add(new MultiKeyPair("A","a3"));
MultiKeyList o = new MultiKeyList("A");
set.contains(o);
for (MultiKeyPair pair : o.list) {
System.out.println(pair.value);
}
}
I cross over the same problem
I put the following code in the folder ~/.gvimrc
and it works.
set guifont=Monaco:h20
I tried the solution below
class Crontab {
// In this class, array instead of string would be the standard input / output format.
// Legacy way to add a job:
// $output = shell_exec('(crontab -l; echo "'.$job.'") | crontab -');
static private function stringToArray($jobs = '') {
$array = explode("\r\n", trim($jobs)); // trim() gets rid of the last \r\n
foreach ($array as $key => $item) {
if ($item == '') {
unset($array[$key]);
}
}
return $array;
}
static private function arrayToString($jobs = array()) {
$string = implode("\r\n", $jobs);
return $string;
}
static public function getJobs() {
$output = shell_exec('crontab -l');
return self::stringToArray($output);
}
static public function saveJobs($jobs = array()) {
$output = shell_exec('echo "'.self::arrayToString($jobs).'" | crontab -');
return $output;
}
static public function doesJobExist($job = '') {
$jobs = self::getJobs();
if (in_array($job, $jobs)) {
return true;
} else {
return false;
}
}
static public function addJob($job = '') {
if (self::doesJobExist($job)) {
return false;
} else {
$jobs = self::getJobs();
$jobs[] = $job;
return self::saveJobs($jobs);
}
}
static public function removeJob($job = '') {
if (self::doesJobExist($job)) {
$jobs = self::getJobs();
unset($jobs[array_search($job, $jobs)]);
return self::saveJobs($jobs);
} else {
return false;
}
}
}
credits to : Crontab Class to Add, Edit and Remove Cron Jobs
The solution is to edit the file php.ini located in your php version(for me it's php7.0.10) not the php.ini of apache. You will find a commented file like this ;curl.cainfo Just change this line like this curl.cainfo = "C:\permCertificate\cacert.pem"
Don't forget to create the "permCertificate" directory and copy the "cacert.pem" file inside it.
If you look at the documentation for JObject
, you will see that it implements IEnumerable<KeyValuePair<string, JToken>>
. So, you can iterate over it simply using a foreach
:
foreach (var x in obj)
{
string name = x.Key;
JToken value = x.Value;
…
}
tabControl1.SelectedTab = MyTab;
Either two different IP addresses (like recommended) or one web server is reverse-proxying the other (which is listening on a port <>80).
For instance: Apache listens on port 80, IIS on port 8080. Every http request goes to Apache first (of course). You can then decide to forward every request to a particular (named virtual) domain or every request that contains a particular directory (e.g. http://www.example.com/winapp/) to the IIS.
Advantage of this concept is that you have only one server listening to the public instead of two, you are more flexible as with two distinct servers.
Drawbacks: some webapps are crappily designed and a real pain in the ass to integrate into a reverse-proxy infrastructure. A working IIS webapp is dependent on a working Apache, so we have some inter-dependencies.
You might need to enable the table for full-text indexing.
If you want to have lists only when they are necessary, and values in any other cases, then you can do this:
class DictList(dict):
def __setitem__(self, key, value):
try:
# Assumes there is a list on the key
self[key].append(value)
except KeyError: # If it fails, because there is no key
super(DictList, self).__setitem__(key, value)
except AttributeError: # If it fails because it is not a list
super(DictList, self).__setitem__(key, [self[key], value])
You can then do the following:
dl = DictList()
dl['a'] = 1
dl['b'] = 2
dl['b'] = 3
Which will store the following {'a': 1, 'b': [2, 3]}
.
I tend to use this implementation when I want to have reverse/inverse dictionaries, in which case I simply do:
my_dict = {1: 'a', 2: 'b', 3: 'b'}
rev = DictList()
for k, v in my_dict.items():
rev_med[v] = k
Which will generate the same output as above: {'a': 1, 'b': [2, 3]}
.
CAVEAT: This implementation relies on the non-existence of the append
method (in the values you are storing). This might produce unexpected results if the values you are storing are lists. For example,
dl = DictList()
dl['a'] = 1
dl['b'] = [2]
dl['b'] = 3
would produce the same result as before {'a': 1, 'b': [2, 3]}
, but one might expected the following: {'a': 1, 'b': [[2], 3]}
.
You could also consider going parallel, especially if you don't care about the sequence and more about getting something done for each item:
SomeIEnumerable<T>.AsParallel().ForAll( Action<T> / Delegate / Lambda )
For example:
var numbers = new[] { 1, 2, 3, 4, 5 };
numbers.AsParallel().ForAll( Console.WriteLine );
HTH.
Try casting the ints to varchar, before adding them to a string:
SET @ActualWeightDIMS = cast(@Actual_Dims_Lenght as varchar(8)) +
'x' + cast(@Actual_Dims_Width as varchar(8)) +
'x' + cast(@Actual_Dims_Height as varhcar(8))
On any other element, I would use the scrollHeight
of the DOM object and set the height accordingly. I don't know if this would work on an iframe (because they're a bit kooky about everything) but it's certainly worth a try.
Edit: Having had a look around, the popular consensus is setting the height from within the iframe using the offsetHeight
:
function setHeight() {
parent.document.getElementById('the-iframe-id').style.height = document['body'].offsetHeight + 'px';
}
And attach that to run with the iframe-body's onLoad
event.
import os
path = chap_name
if not os.path.exists(path):
os.makedirs(path)
filename = img_alt + '.jpg'
with open(os.path.join(path, filename), 'wb') as temp_file:
temp_file.write(buff)
Key point is to use os.makedirs
in place of os.mkdir
. It is recursive, i.e. it generates all intermediate directories. See http://docs.python.org/library/os.html
Open the file in binary mode as you are storing binary (jpeg) data.
In response to Edit 2, if img_alt sometimes has '/' in it:
img_alt = os.path.basename(img_alt)
In the previous answer also in the section <selector>...</selector>
you may need:
<item android:state_pressed="true" android:drawable="@drawable/checkbox_pressed" ></item>
This should work:
cat "$API" >> "$CONFIG"
You need to use the >>
operator to append to a file. Redirecting with >
causes the file to be overwritten. (truncated).
Have a look at the Except method, which you use like this:
var resultingList =
listOfOriginalItems.Except(listOfItemsToLeaveOut, equalityComparer)
You'll want to use the overload I've linked to, which lets you specify a custom IEqualityComparer. That way you can specify how items match based on your composite key. (If you've already overridden Equals, though, you shouldn't need the IEqualityComparer.)
Edit: Since it appears you're using two different types of classes, here's another way that might be simpler. Assuming a List<Person>
called persons
and a List<Exclusion>
called exclusions
:
var exclusionKeys =
exclusions.Select(x => x.compositeKey);
var resultingPersons =
persons.Where(x => !exclusionKeys.Contains(x.compositeKey));
In other words: Select from exclusions just the keys, then pick from persons all the Person objects that don't have any of those keys.
The reason why your full-width-div doesn't stretch 100% to your screen it's because of its parent "container" which occupies only about 80% of the screen.
If you want to make it stretch 100% to the screen either you make the "full-width-div" position fixed or use the "container-fluid" class instead of "container".
see Bootstrap 3 docs: http://getbootstrap.com/css/#grid
Try either
sudo apt-get install php-zip
orsudo apt-get install php5.6-zip
Then, you might have to restart your web server.
sudo service apache2 restart
orsudo service nginx restart
If you are installing on centos or fedora OS then use yum in place of apt-get. example:-
sudo yum install php-zip
or
sudo yum install php5.6-zip
and
sudo service httpd restart
I've also had this problem. This issue report: https://code.google.com/p/android/issues/detail?id=55863 seems to suggest that directly referencing the .AAR file is not supported.
Perhaps the alternative for now is to define the actionbarsherlock library as a Gradle library under the parent directory of your project and reference accordingly.
The syntax is defined here http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Referencing-a-Library
You're missing a FROM and you need to give the subquery an alias.
SELECT COUNT(*) FROM
(
SELECT DISTINCT a.my_id, a.last_name, a.first_name, b.temp_val
FROM dbo.Table_A AS a
INNER JOIN dbo.Table_B AS b
ON a.a_id = b.a_id
) AS subquery;