use java.util.Random
to generate a random number between 0 and array length: random_number
, and then use the random number to get the integer: array[random_number]
<style>
a{
cursor: default;
}
</style>
In the above code [cursor:default] is used. Default is the usual arrow cursor that appears.
And if you use [cursor: pointer] then you can access to the hand like cursor that appears when you hover over a link.
To know more about cursors and their appearance click the below link: https://www.w3schools.com/cssref/pr_class_cursor.asp
This guy here => http://blog.stevenlevithan.com/archives/date-time-format wrote a format()
function for the Javascript's Date
object, so it can be used with familiar literal formats.
If you need full featured Date formatting in your app's Javascript, use it. Otherwise if what you want to do is a one off, then concatenating getYear(), getMonth(), getDay() is probably easiest.
Blazemonger's reply (above or below) needs voting up - but I don't have enough points.
I wanted to add a grey bar across some 20px wide CSS round buttons to indicate "not available" and tweaked Blazemonger's css:
.round_btn:after {
content:""; /* required property */
position: absolute;
top: 6px;
left: -1px;
border-top: 6px solid rgba(170,170,170,0.65);
height: 6px;
width: 19px;
}
It means the value of data
is None
.
">
" is the child selector
"" is the descendant selector
The difference is that a descendant can be a child of the element, or a child of a child of the element or a child of a child of a child ad inifinitum.
A child element is simply one that is directly contained within the parent element:
<foo> <!-- parent -->
<bar> <!-- child of foo, descendant of foo -->
<baz> <!-- descendant of foo -->
</baz>
</bar>
</foo>
for this example, foo *
would match <bar>
and <baz>
, whereas foo > *
would only match <bar>
.
As for your second question:
Which one is more efficient and why?
I'm not actually going to answer this question as it's completely irrelevant to development. CSS rendering engines are so fast that there is almost never* a reason to optimize CSS selectors beyond making them as short as possible.
Instead of worrying about micro-optimizations, focus on writing selectors that make sense for the case at hand. I often use >
selectors when styling nested lists, because it's important to distinguish which level of the list is being styled.
* if it genuinely is an issue in rendering the page, you've probably got too many elements on the page, or too much CSS. Then you'll have to run some tests to see what the actual issue is.
LoadLibrary
does not do what you think it does. It loads the DLL into the memory of the current process, but it does not magically import functions defined in it! This wouldn't be possible, as function calls are resolved by the linker at compile time while LoadLibrary
is called at runtime (remember that C++ is a statically typed language).
You need a separate WinAPI function to get the address of dynamically loaded functions: GetProcAddress
.
Example
#include <windows.h>
#include <iostream>
/* Define a function pointer for our imported
* function.
* This reads as "introduce the new type f_funci as the type:
* pointer to a function returning an int and
* taking no arguments.
*
* Make sure to use matching calling convention (__cdecl, __stdcall, ...)
* with the exported function. __stdcall is the convention used by the WinAPI
*/
typedef int (__stdcall *f_funci)();
int main()
{
HINSTANCE hGetProcIDDLL = LoadLibrary("C:\\Documents and Settings\\User\\Desktop\\test.dll");
if (!hGetProcIDDLL) {
std::cout << "could not load the dynamic library" << std::endl;
return EXIT_FAILURE;
}
// resolve function address here
f_funci funci = (f_funci)GetProcAddress(hGetProcIDDLL, "funci");
if (!funci) {
std::cout << "could not locate the function" << std::endl;
return EXIT_FAILURE;
}
std::cout << "funci() returned " << funci() << std::endl;
return EXIT_SUCCESS;
}
Also, you should export your function from the DLL correctly. This can be done like this:
int __declspec(dllexport) __stdcall funci() {
// ...
}
As Lundin notes, it's good practice to free the handle to the library if you don't need them it longer. This will cause it to get unloaded if no other process still holds a handle to the same DLL.
Try to have the function body before the function call in your JavaScript file.
You can just put this for example at the top of the file:
/* eslint-disable no-console */
Unfortunately, none of the above answers worked for me, although all answers lead to the solution and eventually to my solution, here is the snippet if it helps someone. Thanks
This can be solved with the bash file, due to the layered architecture of the Docker, cron service doesn't get initiated with RUN/CMD/ENTRYPOINT commands.
Simply add a bash file which will initiate the cron and other services (if required)
DockerFile
FROM gradle:6.5.1-jdk11 AS build
# apt
RUN apt-get update
RUN apt-get -y install cron
# Setup cron to run every minute to print (you can add/update your cron here)
RUN touch /var/log/cron-1.log
RUN (crontab -l ; echo "* * * * * echo testing cron.... >> /var/log/cron-1.log 2>&1") | crontab
# entrypoint.sh
RUN chmod +x entrypoint.sh
CMD ["bash","entrypoint.sh"]
entrypoint.sh
#!/bin/sh
service cron start & tail -f /var/log/cron-2.log
If any other service is also required to run along with cron then add that service with &
in the same command, for example: /opt/wildfly/bin/standalone.sh & service cron start & tail -f /var/log/cron-2.log
Once you will get into the docker container there you can see that testing cron....
will be getting printed every minute in file: /var/log/cron-1.log
Create some nice new 10 year certificates and install them. The procedure is fairly easy.
Start at (1B) Generate your own CA (Certificate Authority) on this web page: Creating Certificate Authorities and self-signed SSL certificates and generate your CA Certificate and Key. Once you have these, generate your Server Certificate and Key. Create a Certificate Signing Request (CSR) and then sign the Server Key with the CA Certificate. Now install your Server Certificate and Key on the web server as usual, and import the CA Certificate into Internet Explorer's Trusted Root Certification Authority Store (used by the Flex uploader and Chrome as well) and into Firefox's Certificate Manager Authorities Store on each workstation that needs to access the server using the self-signed, CA-signed server key/certificate pair.
You now should not see any warning about using self-signed Certificates as the browsers will find the CA certificate in the Trust Store and verify the server key has been signed by this trusted certificate. Also in e-commerce applications like Magento, the Flex image uploader will now function in Firefox without the dreaded "Self-signed certificate" error message.
In my case it was
username : root
password : mysql
Using : Wamp server 3.1.0
I am providing my solution with the assumption on your business logic. Basicall in my design i will allow the table to store only one record for a user-game combination. So I will add a composite key to the table.
PRIMARY KEY (`user_id`,`game_id`)
Bus errors are rare nowadays on x86 and occur when your processor cannot even attempt the memory access requested, typically:
Segmentation faults occur when accessing memory which does not belong to your process, they are very common and are typically the result of:
PS: To be more precise this is not manipulating the pointer itself that will cause issues, it's accessing the memory it points to (dereferencing).
I just found this error., while using GETDATE() [i.e outer reference] in the group by clause in a select query.
When replaced it with date column from the respective table it cleared.
Thought to share as a simple example. cheers ;)
There are two methods you can use. Both require creating a user and a database.
By default psql connects to the database with the same name as the user. So there is a convention to make that the "user's database". And there is no reason to break that convention if your user only needs one database. We'll be using mydatabase
as the example database name.
Using createuser and createdb, we can be explicit about the database name,
$ sudo -u postgres createuser -s $USER
$ createdb mydatabase
$ psql -d mydatabase
You should probably be omitting that entirely and letting all the commands default to the user's name instead.
$ sudo -u postgres createuser -s $USER
$ createdb
$ psql
Using the SQL administration commands, and connecting with a password over TCP
$ sudo -u postgres psql postgres
And, then in the psql shell
CREATE ROLE myuser LOGIN PASSWORD 'mypass';
CREATE DATABASE mydatabase WITH OWNER = myuser;
Then you can login,
$ psql -h localhost -d mydatabase -U myuser -p <port>
If you don't know the port, you can always get it by running the following, as the postgres
user,
SHOW port;
Or,
$ grep "port =" /etc/postgresql/*/main/postgresql.conf
postgres
userI suggest NOT modifying the postgres
user.
postgres
. You're supposed to have root to get to authenticate as postgres
.postgres
which is the PostgreSQL equivalent of SQL Server's SA
, you have to have write-access to the underlying data files. And, that means that you could normally wreck havoc anyway.Super simple explanation:
Fact table: a data table that maps lookup IDs together. Is usually one of the main tables central to your application.
Dimension table: a lookup table used to store values (such as city names or states) that are repeated frequently in the fact table.
A class defines a set of instances, of course. And the methods of a class work on the individual instances. The class methods (and variables) a place to hang other information that is related to the set of instances over all.
For example if your class defines a the set of students you might want class variables or methods which define things like the set of grade the students can be members of.
You can also use class methods to define tools for working on the entire set. For example Student.all_of_em() might return all the known students. Obviously if your set of instances have more structure than just a set you can provide class methods to know about that structure. Students.all_of_em(grade='juniors')
Techniques like this tend to lead to storing members of the set of instances into data structures that are rooted in class variables. You need to take care to avoid frustrating the garbage collection then.
For anytone who has worked in ASP as well as more modern languages, the question will provoke a chuckle. In my experience using a custom error handler (set up in IIS to handle the 500;100 errors) is the best option for ASP error handling. This article describes the approach and even gives you some sample code / database table definition.
http://www.15seconds.com/issue/020821.htm
Here is a link to Archive.org's version
You can access those values with the global $_GET variable
//www.example.com/index.php?id=7
print $_GET['id']; // prints "7"
You should check all "incoming" user data - so here, that "id" is an INT. Don't use it directly in your SQL (vulnerable to SQL injections).
Following could be one of ways:
dataframe = dataframe.sample(frac=1, random_state=42).reset_index(drop=True)
where
frac=1 means all rows of a dataframe
random_state=42 means keeping same order in each execution
reset_index(drop=True) means reinitialize index for randomized dataframe
I solved my problem with this code
public void setLocale(String lang) {
myLocale = new Locale(lang);
Resources res = getResources();
DisplayMetrics dm = res.getDisplayMetrics();
Configuration conf = res.getConfiguration();
conf.locale = myLocale;
res.updateConfiguration(conf, dm);
onConfigurationChanged(conf);
}
@Override
public void onConfigurationChanged(Configuration newConfig)
{
iv.setImageDrawable(getResources().getDrawable(R.drawable.keyboard));
greet.setText(R.string.greet);
textView1.setText(R.string.langselection);
super.onConfigurationChanged(newConfig);
}
grep -r -e string directory
-r
is for recursive; -e
is optional but its argument specifies the regex to search for. Interestingly, POSIX grep
is not required to support -r
(or -R
), but I'm practically certain that System V in practice they (almost) all do. Some versions of grep
did, sogrep
support -R
as well as (or conceivably instead of) -r
; AFAICT, it means the same thing.
The properties in the accepted answer did not work for me, possibly because I'm using the JBoss implementation of JAX-WS?
Using a different set of properties (found in the JBoss JAX-WS User Guide) made it work:
//Set timeout until a connection is established
((BindingProvider)port).getRequestContext().put("javax.xml.ws.client.connectionTimeout", "6000");
//Set timeout until the response is received
((BindingProvider) port).getRequestContext().put("javax.xml.ws.client.receiveTimeout", "1000");
These are the packages that your package needs to run, so they will be installed when people run
npm install PACKAGE-NAME
An example would be if you used jQuery in your project. If someone doesn't have jQuery installed, then it wouldn't work. To save as a dependency, use
npm install --save
These are the dependencies that you use in development, but isn't needed when people are using it, so when people run npm install
, it won't install them since the are not necessary. For example, if you use mocha
to test, people don't need mocha
to run, so npm install
doesn't install it. To save as a dev dependency, use
npm install PACKAGE --save-dev
These can be used if you want to create and publish your own library so that it can be used as a dependency. For example, if you want your package to be used as a dependency in another project, then these will also be installed when someone installs the project which has your project as a dependency. Most of the time you won't use peer dependencies.
If one is using storyboard and overriding UICollectionViewDelegateFlowLayout then in swift 5 and Xcode 11 also set Estimate size to None
This is valid YAML:
jobs:
- name: A
schedule: "0 0/5 * 1/1 * ? *"
type: mongodb.cluster
config:
host: mongodb://localhost:27017/admin?replicaSet=rs
minSecondaries: 2
minOplogHours: 100
maxSecondaryDelay: 120
- name: B
schedule: "0 0/5 * 1/1 * ? *"
type: mongodb.cluster
config:
host: mongodb://localhost:27017/admin?replicaSet=rs
minSecondaries: 2
minOplogHours: 100
maxSecondaryDelay: 120
Note, that every '-' starts new element in the sequence. Also, indentation of keys in the map should be exactly same.
It is possible to implement custom bootstrap checkbox for the most popular browsers nowadays.
You can check my Bootstrap-Checkbox project in GitHub, which contains simple .less file. There is a good article in MDN describing some techniques, where the two major are:
Label redirects a click event.
Label can redirect a click event to its target if it has the for
attribute like in <label for="target_id">Text</label> <input id="target_id" type="checkbox" />
, or if it contains input as in Bootstrap case: <label><input type="checkbox" />Text</label>
.
It means that it is possible to place a label in one corner of the browser, click on it, and then the label will redirect click event to the checkbox located in other corner producing check/uncheck action for the checkbox.
We can hide original checkbox visually, but make it is still working and taking click event from the label. In the label itself we can emulate checkbox with a tag or pseudo-element :before :after
.
General non supported tag for old browsers
Some old browsers does not support several CSS features like selecting siblings p+p
or specific search input[type=checkbox]
. According to the MDN article browsers that support these features also support :root
CSS selector, while others not. The :root
selector just selects the root element of a document, which is html
in a HTML page. Thus it is possible to use :root
for a fallback to old browsers and original checkboxes.
Final code snippet:
:root {_x000D_
/* larger checkbox */_x000D_
}_x000D_
:root label.checkbox-bootstrap input[type=checkbox] {_x000D_
/* hide original check box */_x000D_
opacity: 0;_x000D_
position: absolute;_x000D_
/* find the nearest span with checkbox-placeholder class and draw custom checkbox */_x000D_
/* draw checkmark before the span placeholder when original hidden input is checked */_x000D_
/* disabled checkbox style */_x000D_
/* disabled and checked checkbox style */_x000D_
/* when the checkbox is focused with tab key show dots arround */_x000D_
}_x000D_
:root label.checkbox-bootstrap input[type=checkbox] + span.checkbox-placeholder {_x000D_
width: 14px;_x000D_
height: 14px;_x000D_
border: 1px solid;_x000D_
border-radius: 3px;_x000D_
/*checkbox border color*/_x000D_
border-color: #737373;_x000D_
display: inline-block;_x000D_
cursor: pointer;_x000D_
margin: 0 7px 0 -20px;_x000D_
vertical-align: middle;_x000D_
text-align: center;_x000D_
}_x000D_
:root label.checkbox-bootstrap input[type=checkbox]:checked + span.checkbox-placeholder {_x000D_
background: #0ccce4;_x000D_
}_x000D_
:root label.checkbox-bootstrap input[type=checkbox]:checked + span.checkbox-placeholder:before {_x000D_
display: inline-block;_x000D_
position: relative;_x000D_
vertical-align: text-top;_x000D_
width: 5px;_x000D_
height: 9px;_x000D_
/*checkmark arrow color*/_x000D_
border: solid white;_x000D_
border-width: 0 2px 2px 0;_x000D_
/*can be done with post css autoprefixer*/_x000D_
-webkit-transform: rotate(45deg);_x000D_
-moz-transform: rotate(45deg);_x000D_
-ms-transform: rotate(45deg);_x000D_
-o-transform: rotate(45deg);_x000D_
transform: rotate(45deg);_x000D_
content: "";_x000D_
}_x000D_
:root label.checkbox-bootstrap input[type=checkbox]:disabled + span.checkbox-placeholder {_x000D_
background: #ececec;_x000D_
border-color: #c3c2c2;_x000D_
}_x000D_
:root label.checkbox-bootstrap input[type=checkbox]:checked:disabled + span.checkbox-placeholder {_x000D_
background: #d6d6d6;_x000D_
border-color: #bdbdbd;_x000D_
}_x000D_
:root label.checkbox-bootstrap input[type=checkbox]:focus:not(:hover) + span.checkbox-placeholder {_x000D_
outline: 1px dotted black;_x000D_
}_x000D_
:root label.checkbox-bootstrap.checkbox-lg input[type=checkbox] + span.checkbox-placeholder {_x000D_
width: 26px;_x000D_
height: 26px;_x000D_
border: 2px solid;_x000D_
border-radius: 5px;_x000D_
/*checkbox border color*/_x000D_
border-color: #737373;_x000D_
}_x000D_
:root label.checkbox-bootstrap.checkbox-lg input[type=checkbox]:checked + span.checkbox-placeholder:before {_x000D_
width: 9px;_x000D_
height: 15px;_x000D_
/*checkmark arrow color*/_x000D_
border: solid white;_x000D_
border-width: 0 3px 3px 0;_x000D_
}
_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<p>_x000D_
Original checkboxes:_x000D_
</p>_x000D_
<div class="checkbox">_x000D_
<label class="checkbox-bootstrap"> _x000D_
<input type="checkbox"> _x000D_
<span class="checkbox-placeholder"></span> _x000D_
Original checkbox_x000D_
</label>_x000D_
</div>_x000D_
<div class="checkbox">_x000D_
<label class="checkbox-bootstrap"> _x000D_
<input type="checkbox" disabled> _x000D_
<span class="checkbox-placeholder"></span> _x000D_
Original checkbox disabled_x000D_
</label>_x000D_
</div>_x000D_
<div class="checkbox">_x000D_
<label class="checkbox-bootstrap"> _x000D_
<input type="checkbox" checked> _x000D_
<span class="checkbox-placeholder"></span> _x000D_
Original checkbox checked_x000D_
</label>_x000D_
</div>_x000D_
<div class="checkbox">_x000D_
<label class="checkbox-bootstrap"> _x000D_
<input type="checkbox" checked disabled> _x000D_
<span class="checkbox-placeholder"></span> _x000D_
Original checkbox checked and disabled_x000D_
</label>_x000D_
</div>_x000D_
<div class="checkbox">_x000D_
<label class="checkbox-bootstrap checkbox-lg"> _x000D_
<input type="checkbox"> _x000D_
<span class="checkbox-placeholder"></span> _x000D_
Large checkbox unchecked_x000D_
</label>_x000D_
</div>_x000D_
<br/>_x000D_
<p>_x000D_
Inline checkboxes:_x000D_
</p>_x000D_
<label class="checkbox-inline checkbox-bootstrap">_x000D_
<input type="checkbox">_x000D_
<span class="checkbox-placeholder"></span>_x000D_
Inline _x000D_
</label>_x000D_
<label class="checkbox-inline checkbox-bootstrap">_x000D_
<input type="checkbox" disabled>_x000D_
<span class="checkbox-placeholder"></span>_x000D_
Inline disabled_x000D_
</label>_x000D_
<label class="checkbox-inline checkbox-bootstrap">_x000D_
<input type="checkbox" checked disabled>_x000D_
<span class="checkbox-placeholder"></span>_x000D_
Inline checked and disabled_x000D_
</label>_x000D_
<label class="checkbox-inline checkbox-bootstrap checkbox-lg">_x000D_
<input type="checkbox" checked>_x000D_
<span class="checkbox-placeholder"></span>_x000D_
Large inline checked_x000D_
</label>
_x000D_
If the data is a static or global variable, it is zero-filled by default, so just declare it myStruct _m;
If the data is a local variable or a heap-allocated zone, clear it with memset
like:
memset(&m, 0, sizeof(myStruct));
Current compilers (e.g. recent versions of gcc
) optimize that quite well in practice. This works only if all zero values (include null pointers and floating point zero) are represented as all zero bits, which is true on all platforms I know about (but the C standard permits implementations where this is false; I know no such implementation).
You could perhaps code myStruct m = {};
or myStruct m = {0};
(even if the first member of myStruct
is not a scalar).
My feeling is that using memset
for local structures is the best, and it conveys better the fact that at runtime, something has to be done (while usually, global and static data can be understood as initialized at compile time, without any cost at runtime).
Given that Windows has no sys/socket.h, you might consider just doing something like this:
#ifdef __WIN32__
# include <winsock2.h>
#else
# include <sys/socket.h>
#endif
I know you indicated that you won't use WinSock, but since WinSock is how TCP networking is done under Windows, I don't see that you have any alternative. Even if you use a cross-platform networking library, that library will be calling WinSock internally. Most of the standard BSD sockets API calls are implemented in WinSock, so with a bit of futzing around, you can make the same sockets-based program compile under both Windows and other OS's. Just don't forget to do a
#ifdef __WIN32__
WORD versionWanted = MAKEWORD(1, 1);
WSADATA wsaData;
WSAStartup(versionWanted, &wsaData);
#endif
at the top of main()... otherwise all of your socket calls will fail under Windows, because the WSA subsystem wasn't initialized for your process.
install PyQt5 for Windows 10 and python 3.5+.
pip install PyQt5
You mean this?
<style type="text/css">
.bgimg {
background-image: url('../images/divbg.png');
}
</style>
...
<div class="bgimg">
div with background
</div>
The Chrome CSS property -webkit-print-color-adjust: exact;
works appropriately.
However, making sure you have the correct CSS for printing can often be tricky. Several things can be done to avoid the difficulties you are having. First, separate all your print CSS from your screen CSS. This is done via the @media print
and @media screen
.
Often times just setting up some extra @media print
CSS is not enough because you still have all your other CSS included when printing as well. In these cases you just need to be aware of CSS specificity as the print rules don't automatically win against non-print CSS rules.
In your case, the -webkit-print-color-adjust: exact
is working. However, your background-color
and color definitions are being beaten out by other CSS with higher specificity.
While I do not endorse using !important
in nearly any circumstance, the following definitions work properly and expose the problem:
@media print {
tr.vendorListHeading {
background-color: #1a4567 !important;
-webkit-print-color-adjust: exact;
}
}
@media print {
.vendorListHeading th {
color: white !important;
}
}
Here is the fiddle (and embedded for ease of print previewing).
Another way (a new way) to use named tuple is using NamedTuple from typing package: Type hints in namedtuple
Let's use the example of the top answer in this post to see how to use it.
(1) Before using the named tuple, the code is like this:
pt1 = (1.0, 5.0)
pt2 = (2.5, 1.5)
from math import sqrt
line_length = sqrt((pt1[0] - pt2[0])**2 + (pt1[1] - pt2[1])**2)
print(line_length)
(2) Now we use the named tuple
from typing import NamedTuple
inherit the NamedTuple class and define the variable name in the new class. test is the name of the class.
class test(NamedTuple):
x: float
y: float
create instances from the class and assign values to them
pt1 = test(1.0, 5.0) # x is 1.0, and y is 5.0. The order matters
pt2 = test(2.5, 1.5)
use the variables from the instances to calculate
line_length = sqrt((pt1.x - pt2.x)**2 + (pt1.y - pt2.y)**2)
print(line_length)
That doesn't work because, judging by the rest of the code, the initial value of the text input is "Default text" - which is more than one character, and so your if
condition is always true.
The simplest way to make it work, it seems to me, is to account for this case:
var value = $(this).val();
if ( value.length > 0 && value != "Default text" ) ...
your elemId
as its name suggests, is an Id
attribute, these are all you can do to check if it exists:
Vanilla JavaScript: in case you have more advanced selectors:
//you can use it for more advanced selectors
if(document.querySelectorAll("#elemId").length){}
if(document.querySelector("#elemId")){}
//you can use it if your selector has only an Id attribute
if(document.getElementById("elemId")){}
jQuery:
if(jQuery("#elemId").length){}
You can also make it with BufferedReader if you want to validate user input, like this:
import java.io.BufferedReader;
import java.io.InputStreamReader;
class Areas {
public static void main(String args[]){
float PI = 3.1416f;
int r=0;
String rad; //We're going to read all user's text into a String and we try to convert it later
BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); //Here you declare your BufferedReader object and instance it.
System.out.println("Radius?");
try{
rad = br.readLine(); //We read from user's input
r = Integer.parseInt(rad); //We validate if "rad" is an integer (if so we skip catch call and continue on the next line, otherwise, we go to it (catch call))
System.out.println("Circle area is: " + PI*r*r + " Perimeter: " +PI*2*r); //If all was right, we print this
}
catch(Exception e){
System.out.println("Write an integer number"); //This is what user will see if he/she write other thing that is not an integer
Areas a = new Areas(); //We call this class again, so user can try it again
//You can also print exception in case you want to see it as follows:
// e.printStackTrace();
}
}
}
Because Scanner class won't allow you to do it, or not that easy...
And to validate you use "try-catch" calls.
hive> show partitions table_name;
There are two ways to go about doing this.
Create a state in the constructor that contains the text input. Attach an onChange event to the input box that updates state each time. Then onClick you could just alert the state object.
handleClick: function() { alert(this.refs.myInput.value); },
I gather the documentation wasn't great back in 2012 when this question was asked, but for anyone reading this in 2020+: There's now a whole section in the docs about how to add a source set for integration tests. You really should read it instead of copy/pasting code snippets here and banging your head against the wall trying to figure out why an answer from 2012-2016 doesn't quite work.
The answer is most likely simple but more nuanced than you may think, and the exact code you'll need is likely to be different from the code I'll need. For example, do you want your integration tests to use the same dependencies as your unit tests?
For Laravel 5.x we can redirect with just
return redirect()->to($url);
here's a regex one for ya.
update table
set col1=null
where col1 not like '%[a-z,0-9]%'
essentially finds any columns that dont have letters or numbers in them and sets it to null. might have to update if you have columns with just special characters.
Here is the answer to the question here
Actually we have to get it from the sharable ContentProvider of Camera Application.
EDIT . Copying answer that worked for me
private String getRealPathFromURI(Uri contentUri) {
String[] proj = { MediaStore.Images.Media.DATA };
CursorLoader loader = new CursorLoader(mContext, contentUri, proj, null, null, null);
Cursor cursor = loader.loadInBackground();
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String result = cursor.getString(column_index);
cursor.close();
return result;
}
LayoutInflater inflater = (LayoutInflater) SettingActivity.this.getSystemService(SettingActivity.LAYOUT_INFLATER_SERVICE);
PopupWindow pw = new PopupWindow(inflater.inflate(R.layout.gd_quick_action_slide_fontsize, null),LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT, true);
pw.showAtLocation(SettingActivity.this.findViewById(R.id.setting_fontsize), Gravity.CENTER, 0, 0);
View v= pw.getContentView();
TextView tv=v.findViewById(R.id.....);
A "rollback" only works if you used transactions. That way you can group queries together and undo all queries if only one of them fails.
But if you already committed the transaction (or used a regular DELETE-query), the only way of getting your data back is to recover it from a previously made backup.
$str = '<img border="0" src=\'/images/image.jpg\' alt="Image" width="100" height="100"/>';
preg_match('/(src=["\'](.*?)["\'])/', $str, $match); //find src="X" or src='X'
$split = preg_split('/["\']/', $match[0]); // split by quotes
$src = $split[1]; // X between quotes
echo $src;
Other regexp's can be used to determine if the pulled src tag is a picture like so:
if(preg_match('/([jpg]{3}$)|([gif]{3}$)|([jpeg]{3}$)|([bmp]{3}$)|([png]{3}$)/', $src) == 1) {
//its an image
}
Cookies are passed as HTTP headers, both in the request (client -> server), and in the response (server -> client).
We can solve this problem in 3 different ways.
1) Using php.ini file
2) Using .htaccess file
3) Using Wp-config.php file ( for Wordpress )
If you define the ListView
in XAML:
<ListView x:Name="listView"/>
Then you can add columns and populate it in C#:
public Window()
{
// Initialize
this.InitializeComponent();
// Add columns
var gridView = new GridView();
this.listView.View = gridView;
gridView.Columns.Add(new GridViewColumn {
Header = "Id", DisplayMemberBinding = new Binding("Id") });
gridView.Columns.Add(new GridViewColumn {
Header = "Name", DisplayMemberBinding = new Binding("Name") });
// Populate list
this.listView.Items.Add(new MyItem { Id = 1, Name = "David" });
}
See definition of MyItem
below.
However, it's easier to define the columns in XAML (inside the ListView
definition):
<ListView x:Name="listView">
<ListView.View>
<GridView>
<GridViewColumn Header="Id" DisplayMemberBinding="{Binding Id}"/>
<GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}"/>
</GridView>
</ListView.View>
</ListView>
And then just populate the list in C#:
public Window()
{
// Initialize
this.InitializeComponent();
// Populate list
this.listView.Items.Add(new MyItem { Id = 1, Name = "David" });
}
See definition of MyItem
below.
MyItem
DefinitionMyItem
is defined like this:
public class MyItem
{
public int Id { get; set; }
public string Name { get; set; }
}
Two approaches that come to mind:
>>> df
A B C D
0 0.424634 1.716633 0.282734 2.086944
1 -1.325816 2.056277 2.583704 -0.776403
2 1.457809 -0.407279 -1.560583 -1.316246
3 -0.757134 -1.321025 1.325853 -2.513373
4 1.366180 -1.265185 -2.184617 0.881514
>>> df.iloc[:, 2]
0 0.282734
1 2.583704
2 -1.560583
3 1.325853
4 -2.184617
Name: C
>>> df[df.columns[2]]
0 0.282734
1 2.583704
2 -1.560583
3 1.325853
4 -2.184617
Name: C
Edit: The original answer suggested the use of df.ix[:,2]
but this function is now deprecated. Users should switch to df.iloc[:,2]
.
use "mysql_insert_id()". mysql_insert_id() acts on the last performed query, be sure to call mysql_insert_id() immediately after the query that generates the value.
Below are the example of use:
<?php
$link = mysql_connect('localhost', 'username', 'password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db('mydb');
mysql_query("INSERT INTO mytable VALUES('','value')");
printf("Last inserted record has id %d\n", mysql_insert_id());
?>
I hope above example is useful.
If by array of String you mean array of char:
public class Test
{
public static void main(String[] args)
{
String test = "aabbab ";
char[] t = test.toCharArray();
for(char c : t)
System.out.println(c);
System.out.println("The end!");
}
}
If not, the String.split()
function could transform a String into an array of String
See those String.split
examples
/* String to split. */
String str = "one-two-three";
String[] temp;
/* delimiter */
String delimiter = "-";
/* given string will be split by the argument delimiter provided. */
temp = str.split(delimiter);
/* print substrings */
for(int i =0; i < temp.length ; i++)
System.out.println(temp[i]);
The input.split("(?!^)")
proposed by Joachim in his answer is based on:
?!
' zero-width negative lookahead (see Lookaround)^
' as an Anchor to match the start of the string the regex pattern is applied toAny character which is not the first will be split. An empty string will not be split but return an empty array.
If you want to use the this keyword in your function, you need to write the setTimeout function in ES6
setTimeout(() => {
this.filters.max_budget_gt_eq = this.budgetHigherValue;
}, 1000);
look at familiar main method which takes string array as param
You can access Globals
entity from any point of your App via Angular dependency injection. If you want to output Globals.role
value in some component's template, you should inject Globals
through the component's constructor like any service:
// hello.component.ts
import { Component } from '@angular/core';
import { Globals } from './globals';
@Component({
selector: 'hello',
template: 'The global role is {{globals.role}}',
providers: [ Globals ] // this depends on situation, see below
})
export class HelloComponent {
constructor(public globals: Globals) {}
}
I provided Globals
in the HelloComponent
, but instead it could be provided in some HelloComponent's
parent component or even in AppModule
. It will not matter until your Globals
has only static data that could not be changed (say, constants only). But if it's not true and for example different components/services might want to change that data, then the Globals
must be a singleton. In that case it should be provided in the topmost level of the hierarchy where it is going to be used. Let's say this is AppModule
:
import { Globals } from './globals'
@NgModule({
// ... imports, declarations etc
providers: [
// ... other global providers
Globals // so do not provide it into another components/services if you want it to be a singleton
]
})
Also, it's impossible to use var the way you did, it should be
// globals.ts
import { Injectable } from '@angular/core';
@Injectable()
export class Globals {
role: string = 'test';
}
Update
At last, I created a simple demo on stackblitz, where single Globals
is being shared between 3 components and one of them can change the value of Globals.role
.
In my case, I just changed
Note: This is in case of Django, so I added csrftoken
. In your case, you may not need it.
Added
contentType: false
,processData: false
Commented out
"Content-Type": "application/json"
$.ajax({
url: location.pathname,
type: "POST",
crossDomain: true,
dataType: "json",
headers: {
"X-CSRFToken": csrftoken,
"Content-Type": "application/json"
},
data:formData,
success: (response, textStatus, jQxhr) => {
},
error: (jQxhr, textStatus, errorThrown) => {
}
})
to
$.ajax({
url: location.pathname,
type: "POST",
crossDomain: true,
dataType: "json",
contentType: false,
processData: false,
headers: {
"X-CSRFToken": csrftoken
// "Content-Type": "application/json",
},
data:formData,
success: (response, textStatus, jQxhr) => {
},
error: (jQxhr, textStatus, errorThrown) => {
}
})
and it worked.
First off, run
npm init
...will ask you a few questions (read this first) about your project/package and then generate a package.json file for you.
Then, once you have a package.json file, use
npm install <pkg> --save
or
npm install <pkg> --save-dev
...to install a dependency and automatically append it to your package.json
's dependencies
list.
(Note: You may need to manually tweak the version ranges for your dependencies.)
It looks like not having (lib)curl-devel installed when you compile git can cause this.
If you install (lib)curl-devel, and then rebuild/install git, this should solve the problem:
$ yum install curl-devel
$ # cd to wherever the source for git is
$ cd /usr/local/src/git-1.7.9
$ ./configure
$ make
$ make install
This worked for me on Centos 6.3.
If you don't have yum, you can download the source to curl-devel here:
If you are running Ubuntu instead:
sudo apt-get install libcurl4-openssl-dev
There is now a new way of addressing this issue - if you remove position: relative from the container which needs to have the overflow-y visible, you can have overflow-y visible and overflow-x hidden, and vice versa (have overflow-x visible and overflow-y hidden, just make sure the container with the visible property is not relatively positioned).
See this post from CSS Tricks for more details - it worked for me: https://css-tricks.com/popping-hidden-overflow/
Since every other browser (including IE 7, 8 and 9) handles position:relative
on a table cell correctly and only Firefox gets it wrong, your best bet is to use a JavaScript shim. You shouldn’t have to alter your DOM for one failed browser. People use shims all the time when IE gets something wrong and all the other browsers get it right.
Here is a snippet with all the code annotated. The JavaScript, HTML and CSS use responsive web design practices in my example, but you don’t have to if you don’t want. (Responsive means it adapts to your browser width.)
http://jsfiddle.net/mrbinky3000/MfWuV/33/
Here is the code itself, but it doesn’t make sense without the context, so visit the jsfiddle URL above. (The full snippet also has plenty of comments in both the CSS and the Javascript.)
$(function() {
// FireFox Shim
if ($.browser.mozilla) {
$('#test').wrapInner('<div class="ffpad"></div>');
function ffpad() {
var $ffpad = $('.ffpad'),
$parent = $('.ffpad').parent(),
w, h;
$ffpad.height(0);
if ($parent.css('display') == 'table-cell') {
h = $parent.outerHeight();
$ffpad.height(h);
}
}
$(window).on('resize', function() {
ffpad();
});
ffpad();
}
});
select distinct(t1.sal)
from emp t1
where &n=(select count(distinct(t2.sal)) from emp t2 where t1.sal<=t2.sal);
Output: Enter value for n: if you want 2nd highest ,enter 2; if you want 5,enter n=3
Use eval()
instead of ast.literal_eval()
if the input is trusted (which it is in your case).
raw_data = userfile.read().split('\n')
for a in raw_data :
print a
btc_history.append(eval(a))
This works for me in Python 3.6.0
Try Winhttrack
...offline browser utility.
It allows you to download a World Wide Web site from the Internet to a local directory, building recursively all directories, getting HTML, images, and other files from the server to your computer. HTTrack arranges the original site's relative link-structure. Simply open a page of the "mirrored" website in your browser, and you can browse the site from link to link, as if you were viewing it online. HTTrack can also update an existing mirrored site, and resume interrupted downloads. HTTrack is fully configurable, and has an integrated help system.
WinHTTrack is the Windows 2000/XP/Vista/Seven release of HTTrack, and WebHTTrack the Linux/Unix/BSD release...
private void button1_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection();
con.ConnectionString = "data source=CHANCHAL\SQLEXPRESS;initial catalog=AssetManager;user id=GIPL-PC\GIPL;password=";
con.Open();
SqlDataAdapter ad = new SqlDataAdapter("select * from detail1", con);
SqlCommandBuilder cmdbl = new SqlCommandBuilder(ad);
DataSet ds = new DataSet("detail1");
ad.Fill(ds, "detail1");
DataRow row = ds.Tables["detail1"].NewRow();
row["Name"] = textBox1.Text;
row["address"] =textBox2.Text;
ds.Tables["detail1"].Rows.Add(row);
ad.Update(ds, "detail1");
con.Close();
MessageBox.Show("insert secussfully");
}
You can use git rebase -i
(against the branch you branched from)
'i' for interactive.
Replace the pick
next to the commit comment you wish to change with r
(or reword
), save and exit and upon doing so you'll be able to make the edit.
git push
once again and you're done!
I've now seen this in legacy tools using Python2.7, where a build (like a Dockerfile) installs an unpinned dependancy, for example pytest. PyTest has dropped Python 2.7 support, so you may need to specify version < the new package release.
Or bite the bullet and convert that app to Python 3 if that is viable.
In Windows Server LDAP is a protocol which is used for access Active Directory object, user authentication, authorization.
If you want examples of Algorithms/Group of Statements with Time complexity as given in the question, here is a small list -
O(1)
timeO(n)
timeIn a nutshell, all Brute Force Algorithms, or Noob ones which require linearity, are based on O(n) time complexity
O(log n)
timeO(n log n)
timeThe factor of 'log n' is introduced by bringing into consideration Divide and Conquer. Some of these algorithms are the best optimized ones and used frequently.
O(n^2)
timeThese ones are supposed to be the less efficient algorithms if their O(nlogn) counterparts are present. The general application may be Brute Force here.
Below is the exact code you need to make your sheet look exactly as it is in the attached PDF:
try
{
Excel.Application application;
Excel.Workbook workBook;
Excel.Worksheet workSheet;
object misValue = System.Reflection.Missing.Value;
application = new Excel.ApplicationClass();
workBook = application.Workbooks.Add(misValue);
workSheet = (Excel.Worksheet)workBook.Worksheets.get_Item(1);
int i = 1;
workSheet.Cells[i, 2] = "MSS Close Sheet";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
i++;
workSheet.Cells[i, 2] = "MSS - " + dpsNoTextBox.Text;
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
i++;
workSheet.Cells[i, 2] = customerNameTextBox.Text;
i++;
workSheet.Cells[i, 2] = "Opening Date : ";
workSheet.Cells[i, 3] = openingDateTextBox.Value.ToShortDateString();
i++;
workSheet.Cells[i, 2] = "Closing Date : ";
workSheet.Cells[i, 3] = closingDateTextBox.Value.ToShortDateString();
i++;
i++;
i++;
workSheet.Cells[i, 1] = "SL. No";
workSheet.Cells[i, 2] = "Month";
workSheet.Cells[i, 3] = "Amount Deposited";
workSheet.Cells[i, 4] = "Fine";
workSheet.Cells[i, 5] = "Cumulative Total";
workSheet.Cells[i, 6] = "Profit + Cumulative Total";
workSheet.Cells[i, 7] = "Profit @ " + profitRateComboBox.Text;
WorkSheet.Cells[i, 1].EntireRow.Font.Bold = true;
i++;
/////////////////////////////////////////////////////////
foreach (RecurringDeposit rd in RecurringDepositList)
{
workSheet.Cells[i, 1] = rd.SN.ToString();
workSheet.Cells[i, 2] = rd.MonthYear;
workSheet.Cells[i, 3] = rd.InstallmentSize.ToString();
workSheet.Cells[i, 4] = "";
workSheet.Cells[i, 5] = rd.CumulativeTotal.ToString();
workSheet.Cells[i, 6] = rd.ProfitCumulative.ToString();
workSheet.Cells[i, 7] = rd.Profit.ToString();
i++;
}
//////////////////////////////////////////////////////
////////////////////////////////////////////////////////
workSheet.Cells[i, 2] = "Total (" + RecurringDepositList.Count + " months installment)";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = totalAmountDepositedTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "a) Total Amount Deposited";
workSheet.Cells[i, 3] = totalAmountDepositedTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "b) Fine";
workSheet.Cells[i, 3] = "";
i++;
workSheet.Cells[i, 2] = "c) Total Pft Paid";
workSheet.Cells[i, 3] = totalProfitPaidTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Sub Total";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = (totalAmountDepositedTextBox.Value + totalProfitPaidTextBox.Value).ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Deduction";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
i++;
workSheet.Cells[i, 2] = "a) Excise Duty";
workSheet.Cells[i, 3] = "0";
i++;
workSheet.Cells[i, 2] = "b) Income Tax on Pft. @ " + incomeTaxPercentageTextBox.Text;
workSheet.Cells[i, 3] = "0";
i++;
workSheet.Cells[i, 2] = "c) Account Closing Charge ";
workSheet.Cells[i, 3] = closingChargeCommaNumberTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "d) Outstanding on BAIM(FO) ";
workSheet.Cells[i, 3] = baimFOLowerTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Total Deduction ";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = (incomeTaxDeductionTextBox.Value + closingChargeCommaNumberTextBox.Value + baimFOTextBox.Value).ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Client Paid ";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = customerPayableNumberTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "e) Current Balance ";
workSheet.Cells[i, 3] = currentBalanceCommaNumberTextBox.Value.ToString("0.00");
workSheet.Cells[i, 5] = "Exp. Pft paid on MSS A/C(PL67054)";
workSheet.Cells[i, 6] = plTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "e) Total Paid ";
workSheet.Cells[i, 3] = customerPayableNumberTextBox.Value.ToString("0.00");
workSheet.Cells[i, 5] = "IT on Pft (BDT16216)";
workSheet.Cells[i, 6] = incomeTaxDeductionTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Difference";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = (currentBalanceCommaNumberTextBox.Value - customerPayableNumberTextBox.Value).ToString("0.00");
workSheet.Cells[i, 5] = "Account Closing Charge";
workSheet.Cells[i, 6] = closingChargeCommaNumberTextBox.Value;
i++;
///////////////////////////////////////////////////////////////
workBook.SaveAs("D:\\" + dpsNoTextBox.Text.Trim() + "-" + customerNameTextBox.Text.Trim() + ".xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
workBook.Close(true, misValue, misValue);
application.Quit();
releaseObject(workSheet);
releaseObject(workBook);
releaseObject(application);
In:
for i in range(c/10):
You're creating a float as a result - to fix this use the int division operator:
for i in range(c // 10):
EclipseLink provided an annotation (e.g. @Index) to define an index on columns. There is an example of its use. Part of the example is included...
The firstName and lastName fields are indexed, together and individually.
@Entity
@Index(name="EMP_NAME_INDEX", columnNames={"F_NAME","L_NAME"}) // Columns indexed together
public class Employee{
@Id
private long id;
@Index // F_NAME column indexed
@Column(name="F_NAME")
private String firstName;
@Index // L_NAME column indexed
@Column(name="L_NAME")
private String lastName;
...
}
Let's say you have a master
branch with files/directories:
> git branch
master
> ls -la # (files and dirs which you may keep in master)
.git
directory1
directory2
file_1
..
file_n
git checkout —orphan new_branch_name
ls -la |awk '{print $9}' |grep -v git |xargs -I _ rm -rf ./_
git rm -rf .
touch new_file
git add new_file
git commit -m 'added first file in the new branch'
git push origin new_branch_name
In step 2, we simply remove all the files locally to avoid confusion with the files on your new branch and those ones you keep in master
branch.
Then, we unlink all those files in step 3. Finally, step 4 and after are working with our new empty branch.
Once you're done, you can easily switch between your branches:
git checkout master
git checkout new_branch
Try something like the following:
# some sample data
idnat <- sample(c("french","foreigner"),100,TRUE)
idbp <- rep(NA,100)
idbp[idnat=="french"] <- sample(c("mainland","overseas","colony"),sum(idnat=="french"),TRUE)
# recoding
out <- ifelse(idnat=="french" & !idbp %in% c("overseas","colony"), "mainland",
ifelse(idbp %in% c("overseas","colony"),"overseas",
"foreigner"))
cbind(idnat,idbp,out) # check result
Your confusion comes from how SAS and R handle if-else constructions. In R, if
and else
are not vectorized, meaning they check whether a single condition is true (i.e., if("french"=="french")
works) and cannot handle multiple logicals (i.e., if(c("french","foreigner")=="french")
doesn't work) and R gives you the warning you're receiving.
By contrast, ifelse
is vectorized, so it can take your vectors (aka input variables) and test the logical condition on each of their elements, like you're used to in SAS. An alternative way to wrap your head around this would be to build a loop using if
and else
statements (as you've started to do here) but the vectorized ifelse
approach will be more efficient and involve generally less code.
I have tried a few of the answers above and note that some of them are version dependent and do not work in version 3.7.
I also note that since 3.6 all dictionaries are ordered by the sequence in which items are inserted.
Despite dictionaries being ordered since 3.6 some of the statements you expect to work with ordered structures don't seem to work.
The answer to the OP question that worked best for me.
itr = iter(dic.items())
lst = [next(itr) for i in range(3)]
You can also use parameter expansion:
$ filename=foo.txt
$ echo "${filename%.*}"
foo
Just be aware that if there is no file extension, it will look further back for dots, e.g.
.bashrc
) it will remove the whole filename.path.to/myfile
or ./myfile
), then it will trim inside the path.Of course it is right what you say at the beginning, and C logical operator &&
and ||
are what you usually use to "connect" conditions (expressions that can be evaluated as true or false); the comma operator is not a logical operator and its use in that example makes no sense, as explained by other users. You can use it e.g. to "concatenate" statements in the for itself: you can initialize and update j altogether with i; or use the comma operator in other ways
#include <stdio.h>
int main(void) // as std wants
{
int i, j;
// init both i and j; condition, we suppose && is the "original"
// intention; update i and j
for(i=0, j=2; j>=0 && i<=5; i++, j--)
{
printf("%d ", i+j);
}
return 0;
}
Currently, i prefer using this methods:
String data = "Date from Register: ";
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
// Verify that OS.Version is > API 26 (OREO)
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd");
// Origin format
LocalDate localDate = LocalDate.parse(capitalModels.get(position).getDataServer(), formatter); // Parse String (from server) to LocalDate
DateTimeFormatter formatter1 = DateTimeFormatter.ofPattern("dd/MM/yyyy");
//Output format
data = "Data de Registro: "+formatter1.format(localDate); // Output
Toast.makeText(holder.itemView.getContext(), data, Toast.LENGTH_LONG).show();
}else{
//Same resolutions, just use legacy methods to oldest android OS versions.
SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd",Locale.getDefault());
try {
Date date = format.parse(capitalModels.get(position).getDataServer());
SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy", Locale.getDefault());
data = "Date from Register: "+formatter.format(date);
} catch (ParseException e) {
e.printStackTrace();
}
}
If you use VS CODE, you can use :
Ctrl + Shift + P -> Configure User Snippets -> PHP -> Enter
After that you can input code to file php.json :
"Show variable user want to see": {
"prefix": "pre_",
"body": [
"echo '<pre>';",
"print_r($variable);",
"echo '</pre>';"
],
"description": "Show variable user want to see"
}
After that you save file php.json, then you return to the first file with any extension .php and input pre_ -> Enter Done, I hope it helps.
I've written up a long answer to this question, but it covers repositories that are accessed via ssh key access, not https with meta tags. It covers both packages and modules. It also mentions how to use branches other than master.
Post a comment or response if I've missed anything
I use django 1.7+ and python 2.7+, the solution above dose not work. And the input value in the form can be got use POST as below (use the same form above):
if form.is_valid():
data = request.POST.get('my_form_field_name')
print data
Hope this helps.
<input type="text" autocomplete="off"/>
Should work. Alternatively, use:
<form autocomplete="off" … >
for the entire form (see this related question).
With C++, the answer is usually in Boost...
while(MyCondition) {
switch(msg->state) {
case MSGTYPE: // ...
break;
// ... more stuff ...
case DONE:
MyCondition=false; // just add this code and you will be out of loop.
break; // **HERE, you want to break out of the loop itself**
}
}
WINDOWS 7
If there is anyone new reading this, make sure to simply try a clean install of mingw before any of this. It will save you sooooo much time if that is your problem.
I opened up wingw installer, selected every program for removal, apply changes (under installation tab, upper left corner), closed out, went back in and installed every file (in "Basic Setup" section) availible. after that eclipse worked fine using "MinGW GCC" toolchain when starting a new C++ project.
I hope this works for someone else. If not, I would do a reinstall of JDK (Java Developer's Kit) and ECLIPSE as well. I have a 64bit system but I could only get the 32bit versions of Eclipse and JDK to work together.
You can use an Intent for this:
Uri uriUrl = Uri.parse("http://www.google.com/");
Intent launchBrowser = new Intent(Intent.ACTION_VIEW, uriUrl);
startActivity(launchBrowser);
If you don't want to disable this exception, all you need to do is to let your application pump some messages at least once every 60 seconds. It will prevent this exception to happen. Try calling System.Threading.Thread.CurrentThread.Join(10) once in a while. There are other calls you can do that let the messages pump.
It's possible that you've run out of memory or some space elsewhere and it prompted the system to mount an overflow filesystem, and for whatever reason, it's not going away.
Try unmounting the overflow partition:
umount /tmp
or
umount overflow
Probably the easiest way to do it is to have a php file return JSON. So let's say you have a file query.php
,
$result = mysql_query("SELECT field_name, field_value
FROM the_table");
$to_encode = array();
while($row = mysql_fetch_assoc($result)) {
$to_encode[] = $row;
}
echo json_encode($to_encode);
If you're constrained to using document.write (as you note in the comments below) then give your fields an id attribute like so: <input type="text" id="field1" />
. You can reference that field with this jQuery: $("#field1").val()
.
Here's a complete example with the HTML. If we're assuming your fields are called field1
and field2
, then
<!DOCTYPE html>
<html>
<head>
<title>That's about it</title>
</head>
<body>
<form>
<input type="text" id="field1" />
<input type="text" id="field2" />
</form>
</body>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
<script>
$.getJSON('data.php', function(data) {
$.each(data, function(fieldName, fieldValue) {
$("#" + fieldName).val(fieldValue);
});
});
</script>
</html>
That's insertion after the HTML has been constructed, which might be easiest. If you mean to populate data while you're dynamically constructing the HTML, then you'd still want the PHP file to return JSON, you would just add it directly into the value
attribute.
in php.ini file,uncomment this one
sendmail_path = "\"C:\xampp\sendmail\sendmail.exe\" -t"
;sendmail_path="C:\xampp\mailtodisk\mailtodisk.exe"
and in sendmail.ini
smtp_server=smtp.gmail.com
smtp_port=465
error_logfile=error.log
debug_logfile=debug.log
[email protected]
auth_password=yourpassword
[email protected]
hostname=localhost
configure this one..it will works...it working fine for me.
thanks.
Thanks @Joey. It's what I am looking for.
I just bring some improvements:
function Stop-Processes {
param(
[parameter(Mandatory=$true)] $processName,
$timeout = 5
)
$processList = Get-Process $processName -ErrorAction SilentlyContinue
if ($processList) {
# Try gracefully first
$processList.CloseMainWindow() | Out-Null
# Wait until all processes have terminated or until timeout
for ($i = 0 ; $i -le $timeout; $i ++){
$AllHaveExited = $True
$processList | % {
$process = $_
If (!$process.HasExited){
$AllHaveExited = $False
}
}
If ($AllHaveExited){
Return
}
sleep 1
}
# Else: kill
$processList | Stop-Process -Force
}
}
If you have Ruby(1.9+)
ruby -e 'Dir["*"].each{|x| File.rename(x,"PRE_"+x) }'
Deleting node modules folder worked for me.
npm install
.If you a framework like Bootstrap you can make any iframe video responsive by using this snippet:
<div class="embed-responsive embed-responsive-16by9">
<iframe class="embed-responsive-item" src="vid.mp4" allowfullscreen></iframe>
</div>
For the sake of others having this issue - I landed here because I tried to get cute with how I set up a new github repository, but per the setup page credential helper doesn't work unless you clone a repository.
"Tip: The credential helper only works when you clone an HTTPS repository URL. If you use the SSH repository URL instead, SSH keys are used for authentication. This guide offers help generating and using an SSH key pair."
On Linux, and Unix in general, "r"
and "rb"
are the same. More specifically, a FILE
pointer obtained by fopen()
ing a file in in text mode and in binary mode behaves the same way on Unixes. On windows, and in general, on systems that use more than one character to represent "newlines", a file opened in text mode behaves as if all those characters are just one character, '\n'
.
If you want to portably read/write text files on any system, use "r"
, and "w"
in fopen()
. That will guarantee that the files are written and read properly. If you are opening a binary file, use "rb"
and "wb"
, so that an unfortunate newline-translation doesn't mess your data.
Note that a consequence of the underlying system doing the newline translation for you is that you can't determine the number of bytes you can read from a file using fseek(file, 0, SEEK_END).
Finally, see What's the difference between text and binary I/O? on comp.lang.c FAQs.
You can use ACRA from this. Including this library to your projects and configuring it, you could receive (into your email or gdocs) their crash reports. Sorry for my bad English.
Alternatively you can do it in one line (tested in win10)
sqlite3 -help
sqlite3 -header -csv db.sqlite 'select * from tbl1;' > test.csv
Bonus: Using powershell with cmdlet and pipe (|).
get-content query.sql | sqlite3 -header -csv db.sqlite > test.csv
where query.sql is a file containing your SQL query
You can use require()
if you want to install packages if and only if necessary, such as:
if (!require(package, character.only=T, quietly=T)) {
install.packages(package)
library(package, character.only=T)
}
For multiple packages you can use
for (package in c('<package1>', '<package2>')) {
if (!require(package, character.only=T, quietly=T)) {
install.packages(package)
library(package, character.only=T)
}
}
Pro tips:
When used inside the script, you can avoid a dialog screen by specifying the repos
parameter of install.packages()
, such as
install.packages(package, repos="http://cran.us.r-project.org")
You can wrap require()
and library()
in suppressPackageStartupMessages()
to, well, suppress package startup messages, and also use the parameters require(..., quietly=T, warn.conflicts=F)
if needed to keep the installs quiet.
To avoid confusion (as there seems to be some in the comments). Assuming you are on Jupyter:
%matplotlib inline
> displays the plots INSIDE the notebook
sns.plt.show()
> displays the plots OUTSIDE of the notebook
%matplotlib inline
will OVERRIDE sns.plt.show()
in the sense that plots will be shown IN the notebook even when sns.plt.show()
is called.
And yes, it is easy to include the line in to your config:
Automatically run %matplotlib inline in IPython Notebook
But it seems a better convention to keep it together with imports in the actual code.
increase heap size of tomcat for window add this file in apache-tomcat-7.0.42\bin
heap size can be changed based on Requirements.
set JAVA_OPTS=-Dfile.encoding=UTF-8 -Xms128m -Xmx1024m -XX:PermSize=64m -XX:MaxPermSize=256m
For interpolated strings:
$"Int value: {someInt:D4} or {someInt:0000}. Float: {someFloat: 00.00}"
I had the same problem with Versions displaying the same message. I simply right clicked the offending files and selected 'Revert...' from the right-click menu and all was good.
Basically Versions (actually Subversion) thinks you still want to add the file, but it cannot find it because you deleted it in the file system. The Revert option tells Subversion to forget about adding it.
I consider delegates to be Anonymous Interfaces. In many cases you can use them whenever you need an interface with a single method, but you don't want the overhead of defining that interface.
You can extend the string type to include the inset method:
String.prototype.append = function (index,value) {_x000D_
return this.slice(0,index) + value + this.slice(index);_x000D_
};_x000D_
_x000D_
var s = "New string";_x000D_
alert(s.append(4,"complete "));
_x000D_
Then you can call the function:
You can do this by adding a div i.e. centerBlock. And give this property in CSS to center the image or any content. Here is the code:
<div class="container">
<div class="row">
<div class="col-sm-4 col-md-4 col-lg-4">
<div class="centerBlock">
<img class="img-responsive" src="img/some-image.png" title="This image needs to be centered">
</div>
</div>
<div class="col-sm-8 col-md-8 col-lg-8">
Some content not important at this moment
</div>
</div>
</div>
// CSS
.centerBlock {
display: table;
margin: auto;
}
for me $('#element').val('...').change()
is the best way.
IMHO, most arguments against recursive locks (which are what I use 99.9% of the time over like 20 years of concurrent programming) mix the question if they are good or bad with other software design issues, which are quite unrelated. To name one, the "callback" problem, which is elaborated on exhaustively and without any multithreading related point of view, for example in the book Component software - beyond Object oriented programming.
As soon as you have some inversion of control (e.g. events fired), you face re-entrance problems. Independent of whether there are mutexes and threading involved or not.
class EvilFoo {
std::vector<std::string> data;
std::vector<std::function<void(EvilFoo&)> > changedEventHandlers;
public:
size_t registerChangedHandler( std::function<void(EvilFoo&)> handler) { // ...
}
void unregisterChangedHandler(size_t handlerId) { // ...
}
void fireChangedEvent() {
// bad bad, even evil idea!
for( auto& handler : changedEventHandlers ) {
handler(*this);
}
}
void AddItem(const std::string& item) {
data.push_back(item);
fireChangedEvent();
}
};
Now, with code like the above you get all error cases, which would usually be named in the context of recursive locks - only without any of them. An event handler can unregister itself once it has been called, which would lead to a bug in a naively written fireChangedEvent()
. Or it could call other member functions of EvilFoo
which cause all sorts of problems. The root cause is re-entrance.
Worst of all, this could not even be very obvious as it could be over a whole chain of events firing events and eventually we are back at our EvilFoo (non- local).
So, re-entrance is the root problem, not the recursive lock. Now, if you felt more on the safe side using a non-recursive lock, how would such a bug manifest itself? In a deadlock whenever unexpected re-entrance occurs. And with a recursive lock? The same way, it would manifest itself in code without any locks.
So the evil part of EvilFoo
are the events and how they are implemented, not so much a recursive lock. fireChangedEvent()
would need to first create a copy of changedEventHandlers
and use that for iteration, for starters.
Another aspect often coming into the discussion is the definition of what a lock is supposed to do in the first place:
The way I do my concurrent programming, I have a mental model of the latter (protect a resource). This is the main reason why I am good with recursive locks. If some (member) function needs locking of a resource, it locks. If it calls another (member) function while doing what it does and that function also needs locking - it locks. And I don't need an "alternate approach", because the ref-counting of the recursive lock is quite the same as if each function wrote something like:
void EvilFoo::bar() {
auto_lock lock(this); // this->lock_holder = this->lock_if_not_already_locked_by_same_thread())
// do what we gotta do
// ~auto_lock() { if (lock_holder) unlock() }
}
And once events or similar constructs (visitors?!) come into play, I do not hope to get all the ensuing design problems solved by some non-recursive lock.
As of Swift 4.1, if all you need is just check whether the code is built with debug or release configuration, you may use the built-in functions:
_isDebugAssertConfiguration()
(true when optimization is set to -Onone
)_isReleaseAssertConfiguration()
(true when optimization is set to -O
)_isFastAssertConfiguration()
(true when optimization is set to -Ounchecked
)e.g.
func obtain() -> AbstractThing {
if _isDebugAssertConfiguration() {
return DecoratedThingWithDebugInformation(Thing())
} else {
return Thing()
}
}
Compared with preprocessor macros,
-D DEBUG
flag to use it? Undocumented, which means the function can be removed in any update (but it should be AppStore-safe since the optimizer will turn these into constants)
@testable
attribute, fate uncertain on future Swift.? Using in if/else will always generate a "Will never be executed" warning.
document.getElementById("placehere").appendChild(elem);
not
document.getElementById("placehere").appendChild("elem");
and use the below to set the source
elem.src = 'images/hydrangeas.jpg';
hex --> decimal then decimal --> binary
#decimal to binary
def d2b(n):
bStr = ''
if n < 0: raise ValueError, "must be a positive integer"
if n == 0: return '0'
while n > 0:
bStr = str(n % 2) + bStr
n = n >> 1
return bStr
#hex to binary
def h2b(hex):
return d2b(int(hex,16))
Here is a solution for ES6 where you only want to keep the last item. This solution is functional and Airbnb style compliant.
const things = {
thing: [
{ place: 'here', name: 'stuff' },
{ place: 'there', name: 'morestuff1' },
{ place: 'there', name: 'morestuff2' },
],
};
const removeDuplicates = (array, key) => {
return array.reduce((arr, item) => {
const removed = arr.filter(i => i[key] !== item[key]);
return [...removed, item];
}, []);
};
console.log(removeDuplicates(things.thing, 'place'));
// > [{ place: 'here', name: 'stuff' }, { place: 'there', name: 'morestuff2' }]
I know this thread is old, but I just solved the problem for myself on OS X differently than described here.
Basically I reinstalled Python 2.7 through brew, and it comes with pip.
Install Xcode if not already:
xcode-select –install
Install Brew as described here:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Then install Python through Brew:
brew install python
And you're done. In my case I just needed to install pyserial.
pip install pyserial
You can use ElementRef as shown below,
DEMO : https://plnkr.co/edit/XZwXEh9PZEEVJpe0BlYq?p=preview check browser's console.
import { Directive,Input,Outpu,ElementRef,Renderer} from '@angular/core';
@Directive({
selector:"[move]",
host:{
'(click)':"show()"
}
})
export class GetEleDirective{
constructor(private el:ElementRef){
}
show(){
console.log(this.el.nativeElement);
console.log('height---' + this.el.nativeElement.offsetHeight); //<<<===here
console.log('width---' + this.el.nativeElement.offsetWidth); //<<<===here
}
}
Same way you can use it within component itself wherever you need it.
If you have multiple folders and sub folders, you can always import any class or module from the main directory.
For example: Tree structure of the project
Project
+-- main.py
+-- .gitignore
|
+-- src
+----model
| +-- user_model.py
|----controller
+-- user_controller.py
Now, if you want to import "UserModel" class from user_model.py in main.py file, you can do that using:
from src.model.user_model.py import UserModel
Also, you can import same class in user_controller.py file using same line:
from src.model.user_model.py import UserModel
Overall, you can give reference of main project directory to import classes and files in any python file inside Project directory.
Datatables have a .Select method, which returns a rows array according to the criteria you specify. Something like this:
Dim oRows() As DataRow
oRows = dtCountries.Select("CountryName = '" & userinput & "'")
If oRows.Count = 0 Then
' No rows found
Else
' At least one row found. Could be more than one
End If
Of course, if userinput contains ' character, it would raise an exception (like if you query the database). You should escape the ' characters (I use a function to do that).
The []
makes no sense in the moment of making an ArrayList of Integers because I imagine you just want to add Integer values.
Just use
List<Integer> list = new ArrayList<>();
to create the ArrayList and it will work.
Reviewer the solution by this Checking the solution of this page, make the following solution I hope it works: Example:
Javascript:
var context = window.location.pathname.substring(0, window.location.pathname.indexOf("/",2));
var url =window.location.protocol+"//"+ window.location.host +context+"/bla/bla";
Surprised that no one has mentioned conda
so far. I have found this is a lot more straightforward than the other methods mentioned here. Let's say I have python 3.9 and python 2.7 and a project I am working on was python 3.5.4, I could simply create the isolated virtual env for 3.5.4 with the conda command without downloading anything else.
To see a list of available python versions first, use the command
conda search "^python$"
To create the virtual environment for python version x.y.z, use the command
conda create -n yourenvname python=x.y.z
Activate venv with
conda activate yourenvname
Deactivate with
conda deactivate
To delete the virtual environment when done, use the command
conda remove -n yourenvname --all
i know thats a old question but make sure if you are working with references the proper supporting engine is defined. set innodb engine for both tables and same data type for the reference columns
$table->engine = 'InnoDB';
IN two lines:
SimpleDateFormat simpleDateFormat=new SimpleDateFormat("hh:mm aa",Locale.getDefault());
FAJR = new SimpleDateFormat("HH:mm",Locale.getDefault()).format(simpleDateFormat.parse("8:35 PM");
You probably have found this out already, but for someone stuck with this problem:
$("#tableId > tbody").html("");
First of all: you should always import mockito static, this way the code will be much more readable (and intuitive):
import static org.mockito.Mockito.*;
For partial mocking and still keeping original functionality on the rest mockito offers "Spy".
You can use it as follows:
private World world = spy(new World());
To eliminate a method from being executed you could use something like this:
doNothing().when(someObject).someMethod(anyObject());
to give some custom behaviour to a method use "when" with an "thenReturn":
doReturn("something").when(this.world).someMethod(anyObject());
For more examples please find the excellent mockito samples in the doc.
If I've understood your problem correctly, there are two possible problems here:
resultset
is null
- I assume that this can't be the case as if it was you'd get an exception in your while loop and nothing would be output.resultset.getString(i++)
will get columns 1,2,3 and so on from each subsequent row.I think that the second point is probably your problem here.
Lets say you only had 1 row returned, as follows:
Col 1, Col 2, Col 3
A , B, C
Your code as it stands would only get A - it wouldn't get the rest of the columns.
I suggest you change your code as follows:
ResultSet resultset = ...;
ArrayList<String> arrayList = new ArrayList<String>();
while (resultset.next()) {
int i = 1;
while(i <= numberOfColumns) {
arrayList.add(resultset.getString(i++));
}
System.out.println(resultset.getString("Col 1"));
System.out.println(resultset.getString("Col 2"));
System.out.println(resultset.getString("Col 3"));
System.out.println(resultset.getString("Col n"));
}
Edit:
To get the number of columns:
ResultSetMetaData metadata = resultset.getMetaData();
int numberOfColumns = metadata.getColumnCount();
If you are using the 'pylab' for interactive plotting you can set the labelsize at creation time with pylab.ylabel('Example', fontsize=40)
.
If you use pyplot
programmatically you can either set the fontsize on creation with ax.set_ylabel('Example', fontsize=40)
or afterwards with ax.yaxis.label.set_size(40)
.
For someone who needs quick reference of C# Escape Sequences that can be used in string
literals:
\t Horizontal tab (ASCII code value: 9)
\n Line feed (ASCII code value: 10)
\r Carriage return (ASCII code value: 13)
\' Single quotation mark
\" Double quotation mark
\\ Backslash
\? Literal question mark
\x12 ASCII character in hexadecimal notation (e.g. for 0x12)
\x1234 Unicode character in hexadecimal notation (e.g. for 0x1234)
It's worth mentioning that these (in most cases) are universal codes. So \t is 9 and \n is 10 char value on Windows and Linux. But newline sequence is not universal. On Windows it's \n\r and on Linux it's just \n. That's why it's best to use Environment.Newline
which gets adjusted to current OS settings. With .Net Core it gets really important.
I'm surprised that this hasn't shown up yet:
In [34]: sentence = "I really like python, it's pretty awesome.".split()
In [35]: N = 4
In [36]: grams = [sentence[i:i+N] for i in xrange(len(sentence)-N+1)]
In [37]: for gram in grams: print gram
['I', 'really', 'like', 'python,']
['really', 'like', 'python,', "it's"]
['like', 'python,', "it's", 'pretty']
['python,', "it's", 'pretty', 'awesome.']
this helper method get fragment from top of stack:
public Fragment getTopFragment() {
if (getSupportFragmentManager().getBackStackEntryCount() == 0) {
return null;
}
String fragmentTag = getSupportFragmentManager().getBackStackEntryAt(getSupportFragmentManager().getBackStackEntryCount() - 1).getName();
return getSupportFragmentManager().findFragmentByTag(fragmentTag);
}
In host computer/server go to Sql server management studio --> open Security Section on left hand --> right click on Login, select New Login and then create a new account for your database which you want to connect to.
Check the TCP/IP Protocol is Enable. go to All programs --> Microsoft SQL server 2008 --> Configuration Tools --> open Sql server configuration manager. On the left hand select client protocols (based on your operating system 32/64 bit). On the right hand, check TCP/IP Protocol be Enabled.
In Remote computer/server, open Data source administrator. Control panel --> Administrative tools --> Data sources (ODBC).
In User DSN or System DSN , click Add button and select Sql Server driver and then press Finish.
Enter Name.
Enter Server, note that: if you want to enter host computer address, you should enter that`s IP address without "\\". eg. 192.168.1.5 and press Next.
Select With SQL Server authentication using a login ID and password entered by the user.
At the bellow enter your login ID and password which you created on first step. and then click Next.
If shown Database is your database, click Next and then Finish.
You can do the following:
echo '<div class="my_class">';
echo ($cart->count_product > 0) ? $cart->count_product : '';
echo '</div>';
If you want to have it inside your statement, do this:
if($cart->count_product > 0)
{
echo '<div class="my_class">'.$cart->count_product.'</div>';
}
You don't need the else
statement, since you're only going to output the above when it's truthy anyway.
You can also do way more complex commands, just to round out the examples above. So, say I want to get the number of processes running on the system and store it in the ${NUM_PROCS} variable.
All you have to so is generate the command pipeline and stuff it's output (the process count) into the variable.
It looks something like this:
NUM_PROCS=$(ps -e | sed 1d | wc -l)
I hope that helps add some handy information to this discussion.
Use some javascript!
xmlhttp=new XMLHttpRequest(); xmlhttp.open('PUT',http://www.mydomain.org/documents/standards/browsers/supportlist) xmlhttp.send("page content goes here");
Another way of doing this, using only JavaScript, would be this:
window.addEventListener('resize', functionName);
This fires every time the size changes, like the other answer.
functionName
is the name of the function being executed when the window is resized (the brackets on the end aren't necessary).
You have to add the selector parameter, otherwise the event is directly bound instead of delegated, which only works if the element already exists (so it doesn't work for dynamically loaded content).
See http://api.jquery.com/on/#direct-and-delegated-events
Change your code to
$(document.body).on('click', '.update' ,function(){
The jQuery set receives the event then delegates it to elements matching the selector given as argument. This means that contrary to when using live
, the jQuery set elements must exist when you execute the code.
As this answers receives a lot of attention, here are two supplementary advises :
1) When it's possible, try to bind the event listener to the most precise element, to avoid useless event handling.
That is, if you're adding an element of class b
to an existing element of id a
, then don't use
$(document.body).on('click', '#a .b', function(){
but use
$('#a').on('click', '.b', function(){
2) Be careful, when you add an element with an id, to ensure you're not adding it twice. Not only is it "illegal" in HTML to have two elements with the same id but it breaks a lot of things. For example a selector "#c"
would retrieve only one element with this id.
Coffeescript doesn't support javascript ternary operator. Here is the reason from the coffeescript author:
I love ternary operators just as much as the next guy (probably a bit more, actually), but the syntax isn't what makes them good -- they're great because they can fit an if/else on a single line as an expression.
Their syntax is just another bit of mystifying magic to memorize, with no analogue to anything else in the language. The result being equal, I'd much rather have
if/elses
always look the same (and always be compiled into an expression).So, in CoffeeScript, even multi-line ifs will compile into ternaries when appropriate, as will if statements without an else clause:
if sunny go_outside() else read_a_book(). if sunny then go_outside() else read_a_book()
Both become ternaries, both can be used as expressions. It's consistent, and there's no new syntax to learn. So, thanks for the suggestion, but I'm closing this ticket as "wontfix".
Please refer to the github issue: https://github.com/jashkenas/coffeescript/issues/11#issuecomment-97802
You can use the "Join" function to create a single string out of the array of labels, like this:
=Join(Parameters!Product.Label, ",")
var parent = context.Parent.FirstOrDefault(x => x.Id == modelParent.Id);
if (parent != null)
{
parent.Childs = modelParent.Childs;
}
I use objects JSON style for dumb structs (no member functions).
You have wrong database design and you should take a time to read something about database normalization (wikipedia / stackoverflow).
I assume your table looks somewhat like this
TABLE
================================
| group_id | user_ids | name |
--------------------------------
| 1 | 1,4,6 | group1 |
--------------------------------
| 2 | 4,5,1 | group2 |
so in your table of user groups, each row represents one group and in user_ids
column you have set of user ids assigned to that group.
Normalized version of this table would look like this
GROUP
=====================
| id | name |
---------------------
| 1 | group1 |
---------------------
| 2 | group2 |
GROUP_USER_ASSIGNMENT
======================
| group_id | user_id |
----------------------
| 1 | 1 |
----------------------
| 1 | 4 |
----------------------
| 1 | 6 |
----------------------
| 2 | 4 |
----------------------
| ...
Then you can easily select all users with assigned group, or all users in group, or all groups of user, or whatever you can think of. Also, your sql query will work:
/* Your query to select assignments */
SELECT * FROM `group_user_assignment` WHERE user_id IN (1,2,3,4);
/* Select only some users */
SELECT * FROM `group_user_assignment` t1
JOIN `group` t2 ON t2.id = t1.group_id
WHERE user_id IN (1,4);
/* Select all groups of user */
SELECT * FROM `group_user_assignment` t1
JOIN `group` t2 ON t2.id = t1.group_id
WHERE t1.`user_id` = 1;
/* Select all users of group */
SELECT * FROM `group_user_assignment` t1
JOIN `group` t2 ON t2.id = t1.group_id
WHERE t1.`group_id` = 1;
/* Count number of groups user is in */
SELECT COUNT(*) AS `groups_count` FROM `group_user_assignment` WHERE `user_id` = 1;
/* Count number of users in group */
SELECT COUNT(*) AS `users_count` FROM `group_user_assignment` WHERE `group_id` = 1;
This way it will be also easier to update database, when you would like to add new assignment, you just simply insert new row in group_user_assignment
, when you want to remove assignment you just delete row in group_user_assignment
.
In your database design, to update assignments, you would have to get your assignment set from database, process it and update and then write back to database.
Here is sqlFiddle to play with.
After trying these solutions I still wasn't satisfied but I found a solution in this article and it works in Chrome, Firefox, Opera, Safari, IE8+
#divId {
display: block;
-moz-box-sizing: border-box;
box-sizing: border-box;
background: url(http://notrealdomain2.com/newbanner.png) no-repeat;
width: 180px; /* Width of new image */
height: 236px; /* Height of new image */
padding-left: 180px; /* Equal to width of new image */
}
$ in_list super test me out
NO
$ in_list "super dude" test me out
NO
$ in_list "super dude" test me "super dude"
YES
# How to use in another script
if [ $(in_list $1 OPTION1 OPTION2) == "NO" ]
then
echo "UNKNOWN type for param 1: Should be OPTION1 or OPTION2"
exit;
fi
function show_help()
{
IT=$(CAT <<EOF
usage: SEARCH_FOR {ITEM1} {ITEM2} {ITEM3} ...
e.g.
a b c d -> NO
a b a d -> YES
"test me" how "test me" -> YES
)
echo "$IT"
exit
}
if [ "$1" == "help" ]
then
show_help
fi
if [ "$#" -eq 0 ]; then
show_help
fi
SEARCH_FOR=$1
shift;
for ITEM in "$@"
do
if [ "$SEARCH_FOR" == "$ITEM" ]
then
echo "YES"
exit;
fi
done
echo "NO"
this will sort it for you
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button but1=(Button)findViewById(R.id.button1);
but1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent int1= new Intent(MainActivity.this,xxactivity.class);
startActivity(int1);
}
});
}
You just need to amend the xxactivity to the name of your second activity
I had the same error. Basically, I suspect that the path cannot start either with "U" or "User" after "C:\". I changed my directory to "c:\file_name.png" by putting the file that I want to access from python right under the 'c:\' path.
In your case, if you have to access the "python" folder, perhaps reinstall the python, and change the installation path to something like "c:\python". Otherwise, just avoid the "...\User..." in your path, and put your project under C:.
sessionStorage
maintains a separate storage area for each given origin that's available for the duration of the page session (as long as the browser is open, including page reloads and restores)
localStorage
does the same thing, but persists even when the browser is closed and reopened.
I took this from Web Storage API
Just to help someone on this problem, after an afternoon of debug, the problem was that the web service was developed with framework 4.5 and the call from android must be done with SoapEnvelope.VER12 and not with SoapEnvelope.VER11
One very small nit to pick:
The RFC for email addresses allows the first part to include an "@" sign if it is quoted. Example:
"john@work"@myemployer.com
This is quite uncommon, but could happen. Theoretically, you should split on the last "@" symbol, not the first:
SELECT LEN(EmailField) - CHARINDEX('@', REVERSE(EmailField)) + 1
More information:
You can also try this to determine the current global sql_mode
value:
SELECT @@GLOBAL.sql_mode;
or session sql_mode
value:
SELECT @@SESSION.sql_mode;
I also had the feeling that the SQL mode was indeed empty.
I have recently implemented the receipt printing simply by pressing a button on a web page, without having to enter the printer options. I have done it using EPSON javascript SDK for ePOS. I have test it on EPSON TM-m30 receipt printer.
Here is the sample code.
var printer = null;
var ePosDev = null;
function InitMyPrinter() {
console.log("Init Printer");
var printerPort = 8008;
var printerAddress = "192.168.198.168";
if (isSSL) {
printerPort = 8043;
}
ePosDev = new epson.ePOSDevice();
ePosDev.connect(printerAddress, printerPort, cbConnect);
}
//Printing
function cbConnect(data) {
if (data == 'OK' || data == 'SSL_CONNECT_OK') {
ePosDev.createDevice('local_printer', ePosDev.DEVICE_TYPE_PRINTER,
{'crypto': false, 'buffer': false}, cbCreateDevice_printer);
} else {
console.log(data);
}
}
function cbCreateDevice_printer(devobj, retcode) {
if (retcode == 'OK') {
printer = devobj;
printer.timeout = 60000;
printer.onreceive = function (res) { //alert(res.success);
console.log("Printer Object Created");
};
printer.oncoveropen = function () { //alert('coveropen');
console.log("Printer Cover Open");
};
} else {
console.log(retcode);
isRegPrintConnected = false;
}
}
function print(salePrintObj) {
debugger;
if (isRegPrintConnected == false
|| printer == null) {
return;
}
console.log("Printing Started");
printer.addLayout(printer.LAYOUT_RECEIPT, 800, 0, 0, 0, 35, 0);
printer.addTextAlign(printer.ALIGN_CENTER);
printer.addTextSmooth(true);
printer.addText('\n');
printer.addText('\n');
printer.addTextDouble(true, true);
printer.addText(CompanyName + '\n');
printer.addTextDouble(false, false);
printer.addText(CompanyHeader + '\n');
printer.addText('\n');
printer.addTextAlign(printer.ALIGN_LEFT);
printer.addText('DATE: ' + currentDate + '\t\t');
printer.addTextAlign(printer.ALIGN_RIGHT);
printer.addText('TIME: ' + currentTime + '\n');
printer.addTextAlign(printer.ALIGN_LEFT);
printer.addTextAlign(printer.ALIGN_RIGHT);
printer.addText('REGISTER: ' + RegisterName + '\n');
printer.addTextAlign(printer.ALIGN_LEFT);
printer.addText('SALE # ' + SaleNumber + '\n');
printer.addTextAlign(printer.ALIGN_CENTER);
printer.addTextStyle(false, false, true, printer.COLOR_1);
printer.addTextStyle(false, false, false, printer.COLOR_1);
printer.addTextDouble(false, true);
printer.addText('* SALE RECEIPT *\n');
printer.addTextDouble(false, false);
....
....
....
}
There are many links that lets you know how to handle post values from checkboxes in php. Look at this link: http://www.html-form-guide.com/php-form/php-form-checkbox.html
Single check box
HTML code:
<form action="checkbox-form.php" method="post">
Do you need wheelchair access?
<input type="checkbox" name="formWheelchair" value="Yes" />
<input type="submit" name="formSubmit" value="Submit" />
</form>
PHP Code:
<?php
if (isset($_POST['formWheelchair']) && $_POST['formWheelchair'] == 'Yes')
{
echo "Need wheelchair access.";
}
else
{
echo "Do not Need wheelchair access.";
}
?>
Check box group
<form action="checkbox-form.php" method="post">
Which buildings do you want access to?<br />
<input type="checkbox" name="formDoor[]" value="A" />Acorn Building<br />
<input type="checkbox" name="formDoor[]" value="B" />Brown Hall<br />
<input type="checkbox" name="formDoor[]" value="C" />Carnegie Complex<br />
<input type="checkbox" name="formDoor[]" value="D" />Drake Commons<br />
<input type="checkbox" name="formDoor[]" value="E" />Elliot House
<input type="submit" name="formSubmit" value="Submit" />
/form>
<?php
$aDoor = $_POST['formDoor'];
if(empty($aDoor))
{
echo("You didn't select any buildings.");
}
else
{
$N = count($aDoor);
echo("You selected $N door(s): ");
for($i=0; $i < $N; $i++)
{
echo($aDoor[$i] . " ");
}
}
?>
C# compiler have only lambda
arg => arg.MyProperty
for infer type of arg(TModel) an type of arg.MyProperty(TProperty). It's impossible.
Add Days in Date in SQL
DECLARE @NEWDOB DATE=null
SET @NEWDOB= (SELECT DOB, DATEADD(dd,45,DOB)AS NEWDOB FROM tbl_Employees)
yet i see there is most preferred way which was what i was looking for.. it's basically derived from these answers but i had to manipulate it to more more redundant and efficient.. and i think everybody looking for what i come up with
first make an Interface that simple
public interface myCallback {
void onSuccess();
void onError(String err);
}
now to make this callback run when ever you wish to do to handle the results - more likely after async call and you wanna run some stuff which depends on these reuslts
// import the Interface class here
public class App {
public static void main(String[] args) {
// call your method
doSomething("list your Params", new myCallback(){
@Override
public void onSuccess() {
// no errors
System.out.println("Done");
}
@Override
public void onError(String err) {
// error happen
System.out.println(err);
}
});
}
private void doSomething(String param, // some params..
myCallback callback) {
// now call onSuccess whenever you want if results are ready
if(results_success)
callback.onSuccess();
else
callback.onError(someError);
}
}
doSomething
is the function that takes some time you wanna add a callback to it to notify you when the results came, add the call back interface as a parameter to this method
Just use ng-repeat="(sectionIndex, section) in sections"
and that will be useable on the next level ng-repeat down.
<ul ng-repeat="(sectionIndex, section) in sections">
<li class="section_title {{section.active}}" >
{{section.name}}
</li>
<ul>
<li ng-repeat="tutorial in section.tutorials">
{{tutorial.name}}, Your section index is {{sectionIndex}}
</li>
</ul>
</ul>
Kind of, use the XmlAttribute
instead of XmlElement
, but it won't look like what you want. It will look like the following:
<SomeModel SomeStringElementName="testData">
</SomeModel>
The only way I can think of to achieve what you want (natively) would be to have properties pointing to objects named SomeStringElementName and SomeInfoElementName where the class contained a single getter named "value". You could take this one step further and use DataContractSerializer so that the wrapper classes can be private. XmlSerializer won't read private properties.
// TODO: make the class generic so that an int or string can be used.
[Serializable]
public class SerializationClass
{
public SerializationClass(string value)
{
this.Value = value;
}
[XmlAttribute("value")]
public string Value { get; }
}
[Serializable]
public class SomeModel
{
[XmlIgnore]
public string SomeString { get; set; }
[XmlIgnore]
public int SomeInfo { get; set; }
[XmlElement]
public SerializationClass SomeStringElementName
{
get { return new SerializationClass(this.SomeString); }
}
}
This can be done in one line with lodash _.tail
:
var arr = ["item 1", "item 2", "item 3", "item 4"];_x000D_
console.log(_.tail(arr));
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"></script>
_x000D_
You can also use a while loop:
while (true) {
//your code
}
I'm very surprised nobody has suggested collection initializers. This way can only add objects when the list is created hence the name however it seems like the nicest way of doing it. No need to create an array then convert it to a list.
var list = new List<dynamic>()
{
new { Id = 1, Name = "Foo" },
new { Id = 2, Name = "Bar" }
};
You can always use object
instead of dynamic
but trying to keep it in a true generic way then dynamic
makes more sense.
if it doesnt exist load default image or handle error
$('img[id$=imgurl]').load(imgurl, function(response, status, xhr) {
if (status == "error")
$(this).attr('src', 'images/DEFAULT.JPG');
else
$(this).attr('src', imgurl);
});
I tried the other solutions, but I didn't find that c.NotebookApp.notebook_dir
setting in the config...
#jupyter_notebook_config.json
{
"NotebookApp": {
"nbserver_extensions": {
"jupyter_nbextensions_configurator": true
}
}
}
So, what I do is:
cd
into the directory where I want the notebooks and checkpoints
savedjupyter-lab
# ipython cell
import os
# change where notebooks are stored
os.chdir('/Users/me/Project')
os.getcwd()
Thank you for your help. Just in case if people are still having problems, try this.
For MySQL version 5.6 and under
Have you forgotten your Mac OS X 'ROOT' password and need to reset it? Follow these 4 simple steps:
sudo /usr/local/mysql/bin/mysqld_safe --skip-grant-tables
sudo /usr/local/mysql/bin/mysql -u root
UPDATE mysql.user SET Password=PASSWORD('NewPassword') WHERE User='root';
FLUSH PRIVILEGES;
\q
For MySQL version 5.7 and up
'System Prefrences' > MySQL > 'Stop MySQL Server'
sudo /usr/local/mysql/bin/mysqld_safe --skip-grant-tables
sudo /usr/local/mysql/bin/mysql -u root
UPDATE mysql.user SET authentication_string=PASSWORD('NewPassword') WHERE User='root';
FLUSH PRIVILEGES;
\q
I have had the same problem and here is the funny reason: My guess is that you expect System.Web.Mvc
to be located under System.Web
in the list. But the list is not alphabetical.
First sort the list and then look near the System.Web
.
If you need to know the default collation for a newly created database use:
SELECT SERVERPROPERTY('Collation')
This is the server collation for the SQL Server instance that you are running.
I had the same problem. Solved using single quotes like this:
$ wget 'http://www.icerts.com/images/logo.jpg'
wget version in use:
$ wget --version
GNU Wget 1.11.4 Red Hat modified
The ideal solution for this problem works with iterators (not just sequences). It should also be fast.
This is the solution provided by the documentation for itertools:
def grouper(n, iterable, fillvalue=None):
#"grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx"
args = [iter(iterable)] * n
return itertools.izip_longest(fillvalue=fillvalue, *args)
Using ipython's %timeit
on my mac book air, I get 47.5 us per loop.
However, this really doesn't work for me since the results are padded to be even sized groups. A solution without the padding is slightly more complicated. The most naive solution might be:
def grouper(size, iterable):
i = iter(iterable)
while True:
out = []
try:
for _ in range(size):
out.append(i.next())
except StopIteration:
yield out
break
yield out
Simple, but pretty slow: 693 us per loop
The best solution I could come up with uses islice
for the inner loop:
def grouper(size, iterable):
it = iter(iterable)
while True:
group = tuple(itertools.islice(it, None, size))
if not group:
break
yield group
With the same dataset, I get 305 us per loop.
Unable to get a pure solution any faster than that, I provide the following solution with an important caveat: If your input data has instances of filldata
in it, you could get wrong answer.
def grouper(n, iterable, fillvalue=None):
#"grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx"
args = [iter(iterable)] * n
for i in itertools.izip_longest(fillvalue=fillvalue, *args):
if tuple(i)[-1] == fillvalue:
yield tuple(v for v in i if v != fillvalue)
else:
yield i
I really don't like this answer, but it is significantly faster. 124 us per loop
I assume that there exist some internal psql command for this, but you could also run the script
command from util-linux-ng package:
DESCRIPTION Script makes a typescript of everything printed on your terminal.
I forgot to tell a bug when i use I use req.session.email = req.param('email'), the server error says cannot sett property email of undefined.
The reason of this error is a wrong order of app.use. You must configure express in this order:
app.use(express.cookieParser());
app.use(express.session({ secret: sessionVal }));
app.use(app.route);
I'm on Ubuntu 15.04. This seemed to work:
$ sudo pip3 install numpy
On RHEL this worked:
$ sudo python3 -m pip install numpy
Instead of this:
// [START refresh_token]
@Override
public void onTokenRefresh() {
// Get updated InstanceID token.
// String refreshedToken = FirebaseInstanceId.getInstance().getToken();
// Log.d(TAG, "Refreshed token: " + refreshedToken);
//
// TODO: Implement this method to send any registration to your app's servers.
// sendRegistrationToServer(refreshedToken);
//
Intent intent = new Intent(this, RegistrationIntentService.class);
startService(intent);
}
// [END refresh_token]
Do this:
// [START refresh_token]
@Override
public void onTokenRefresh() {
// Get updated InstanceID token.
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
// Log.d(TAG, "Refreshed token: " + refreshedToken);
// Implement this method to send token to your app's server
sendRegistrationToServer(refreshedToken);
}
// [END refresh_token]
And one more thing:
You need to call
sendRegistrationToServer()
method which will update token on server, if you are sending push notifications from server.
UPDATE:
New Firebase token is generated (onTokenRefresh()
is called) when:
Please rewrite your query like
select /*+ MAX_EXECUTION_TIME(1000) */ * from table
this statement will kill your query after the specified time
Another one solution: html:
<div class="background">
<div class="container">Hello world!</div>
</div>
css:
.background {
position: relative;
width: 50px;
height: 50px;
border-right: 150px solid lightgreen;
border-bottom: 150px solid lightgreen;
border-radius: 10px;
}
.background::before {
content: "";
position: absolute;
top: 0;
left: 0;
width: 0;
height: 0;
border: 25px solid lightgreen;
border-top-color: transparent;
border-left-color: transparent;
}
.container {
position: absolute;
padding-left: 25px;
padding-top: 25px;
font-size: 38px;
font-weight: bolder;
}
The correct statement should be :
SELECT
student.firstname,
student.lastname,
exam.name,
exam.date,
grade.grade
FROM grade
INNER JOIN student
ON student.studentId = grade.fk_studentId
INNER JOIN exam
ON exam.examId = grade.fk_examId
ORDER BY exam.date
A table is refered to other on the basis of the foreign key relationship defined. You should refer the ids properly if you wish the data to show as queried. So you should refer the id's to the proper foreign keys in the table rather than just on the id which doesn't define a proper relation
There are two ways to handle this.
The background image is probably easier. You need a fixed width somewhere.
.background-image {
width: 400px;
background: url(background.png) 50% 50%;
}
<form><div class="background-image"></div></form>
Try this
<Button BorderThickness="0"
Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" >...
Here's my version:
Utils.eventBoundToFunction = function (element, eventType, fCallback) {
if (!element || !element.data('events') || !element.data('events')[eventType] || !fCallback) {
return false;
}
for (runner in element.data('events')[eventType]) {
if (element.data('events')[eventType][runner].handler == fCallback) {
return true;
}
}
return false;
};
Usage:
Utils.eventBoundToFunction(okButton, 'click', handleOkButtonFunction)
you have defined the public dir in app root/public
app.use(express.static(__dirname + '/public'));
so you have to use:
./css/main.css
I use this version
<style><%@include file="/WEB-INF/css/style.css"%></style>
The concept of number/length/dimensionality doesn't really make sense for an Object, and needing it suggests you really want an Array to me.
Edit: Pointed out to me that you want an O(1) for this. To the best of my knowledge no such way exists I'm afraid.
This should work with only one loop:
function checkIfArrayIsUnique(arr) {
var map = {}, i, size;
for (i = 0, size = arr.length; i < size; i++){
if (map[arr[i]]){
return false;
}
map[arr[i]] = true;
}
return true;
}
This is what SSMS uses when you script using the DROP and CREATE
option
IF EXISTS (SELECT *
FROM sys.objects
WHERE object_id = OBJECT_ID(N'[dbo].[foo]')
AND type IN ( N'FN', N'IF', N'TF', N'FS', N'FT' ))
DROP FUNCTION [dbo].[foo]
GO
This approach to deploying changes means that you need to recreate all permissions on the object so you might consider ALTER
-ing if Exists instead.
Use a GET request to download the image and save it to a web accessible directory on your server.
As you are using PHP, you can use curl
to download files from the other server.
I would do the following to check for an empty object
obj.similar(new JSONObject())
Original definitive documentation
0
, 1
and 2
only track how many of the necessary methods to make a request you've called so far.
3
tells you that the server's response has started to come in. But when you're using the XMLHttpRequest
object from a web page there's almost nothing(*) you can do with that information, since you don't have access to the extended properties that allow you to read the partial data.
readyState 4
is the only one that holds any meaning.
(*: about the only conceivable use I can think of for checking for readyState 3
is that it signals some form of life at the server end, so you could possibly increase the amount of time you wait for a full response when you receive it.)
Prevent browser cache is not a good idea depending on the case. Looking for a solution I found solutions like this:
<link rel="stylesheet" type="text/css" href="meu.css?v=<?=filemtime($file);?>">
the problem here is that if the file is overwritten during an update on the server, which is my scenario, the cache is ignored because timestamp is modified even the content of the file is the same.
I use this solution to force browser to download assets only if its content is modified:
<link rel="stylesheet" type="text/css" href="meu.css?v=<?=hash_file('md5', $file);?>">
As to the cause, the <f:attribute>
is specific to the component itself (populated during view build time), not to the iterated row (populated during view render time).
There are several ways to achieve the requirement.
If your servletcontainer supports a minimum of Servlet 3.0 / EL 2.2, then just pass it as an argument of action/listener method of UICommand
component or AjaxBehavior
tag. E.g.
<h:commandLink action="#{bean.insert(item.id)}" value="insert" />
In combination with:
public void insert(Long id) {
// ...
}
This only requires that the datamodel is preserved for the form submit request. Best is to put the bean in the view scope by @ViewScoped
.
You can even pass the entire item object:
<h:commandLink action="#{bean.insert(item)}" value="insert" />
with:
public void insert(Item item) {
// ...
}
On Servlet 2.5 containers, this is also possible if you supply an EL implementation which supports this, like as JBoss EL. For configuration detail, see this answer.
Use <f:param>
in UICommand
component. It adds a request parameter.
<h:commandLink action="#{bean.insert}" value="insert">
<f:param name="id" value="#{item.id}" />
</h:commandLink>
If your bean is request scoped, let JSF set it by @ManagedProperty
@ManagedProperty(value="#{param.id}")
private Long id; // +setter
Or if your bean has a broader scope or if you want more fine grained validation/conversion, use <f:viewParam>
on the target view, see also f:viewParam vs @ManagedProperty:
<f:viewParam name="id" value="#{bean.id}" required="true" />
Either way, this has the advantage that the datamodel doesn't necessarily need to be preserved for the form submit (for the case that your bean is request scoped).
Use <f:setPropertyActionListener>
in UICommand
component. The advantage is that this removes the need for accessing the request parameter map when the bean has a broader scope than the request scope.
<h:commandLink action="#{bean.insert}" value="insert">
<f:setPropertyActionListener target="#{bean.id}" value="#{item.id}" />
</h:commandLink>
In combination with
private Long id; // +setter
It'll be just available by property id
in action method. This only requires that the datamodel is preserved for the form submit request. Best is to put the bean in the view scope by @ViewScoped
.
Bind the datatable value to DataModel<E>
instead which in turn wraps the items.
<h:dataTable value="#{bean.model}" var="item">
with
private transient DataModel<Item> model;
public DataModel<Item> getModel() {
if (model == null) {
model = new ListDataModel<Item>(items);
}
return model;
}
(making it transient
and lazily instantiating it in the getter is mandatory when you're using this on a view or session scoped bean since DataModel
doesn't implement Serializable
)
Then you'll be able to access the current row by DataModel#getRowData()
without passing anything around (JSF determines the row based on the request parameter name of the clicked command link/button).
public void insert() {
Item item = model.getRowData();
Long id = item.getId();
// ...
}
This also requires that the datamodel is preserved for the form submit request. Best is to put the bean in the view scope by @ViewScoped
.
Use Application#evaluateExpressionGet()
to programmatically evaluate the current #{item}
.
public void insert() {
FacesContext context = FacesContext.getCurrentInstance();
Item item = context.getApplication().evaluateExpressionGet(context, "#{item}", Item.class);
Long id = item.getId();
// ...
}
Which way to choose depends on the functional requirements and whether the one or the other offers more advantages for other purposes. I personally would go ahead with #1 or, when you'd like to support servlet 2.5 containers as well, with #2.
I know there is already a good answer posted, but it won't allow leading zeros. And I don't have enough reputation to leave a comment, so... Here's my solution allowing leading zeros:
First I match the numbers 50 through 99 (with possible leading zeros):
0*[5-9]\d
Then match numbers of 100 and above (also with leading zeros):
0*[1-9]\d{2,}
Add them together with an "or" and wrap it up to match the whole sentence:
^0*([1-9]\d{2,}|[5-9]\d)$
That's it!
Since you should focus on usability and generalities in CSS, rather than use an id to point to a specific layout element (which results in huge or multiple css files) you should probably instead use a true class in your linked .css file:
.hidden {
visibility: hidden;
display: none;
}
or for the minimalist:
.hidden {
display: none;
}
Now you can simply apply it via:
<div class="hidden"> content </div>
SELECT * FROM table WHERE timestamp >= '2012-05-05 00:00:00'
AND timestamp <= '2012-05-05 23:59:59'
Below is the php PDF merge command.
$fileArray= array("name1.pdf","name2.pdf","name3.pdf","name4.pdf");
$datadir = "save_path/";
$outputName = $datadir."merged.pdf";
$cmd = "gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=$outputName ";
//Add each pdf file to the end of the command
foreach($fileArray as $file) {
$cmd .= $file." ";
}
$result = shell_exec($cmd);
I forgot the link from where I found it, but it works fine.
Note: You should have gs (on linux and probably Mac), or Ghostscript (on windows) installed for this to work.
Can you split up the query? Insert the stored proc results into a table variable or a temp table. Then, select the 2 columns from the table variable.
Declare @tablevar table(col1 col1Type,..
insert into @tablevar(col1,..) exec MyStoredProc 'param1', 'param2'
SELECT col1, col2 FROM @tablevar
I would use a simple string comparison here, as far as I know there is no built in function for what you want to do (unless you want to resort to eval
... which you don't).
var myBool = myString == "true";
Let the modern java.time classes of JSR 310 automatically generate localized text, rather than hard-coding 12-hour clock and AM/PM.
LocalTime // Represent a time-of-day, without date, without time zone or offset-from-UTC.
.now( // Capture the current time-of-day as seen in a particular time zone.
ZoneId.of( "Africa/Casablanca" )
) // Returns a `LocalTime` object.
.format( // Generate text representing the value in our `LocalTime` object.
DateTimeFormatter // Class responsible for generating text representing the value of a java.time object.
.ofLocalizedTime( // Automatically localize the text being generated.
FormatStyle.SHORT // Specify how long or abbreviated the generated text should be.
) // Returns a `DateTimeFormatter` object.
.withLocale( Locale.US ) // Specifies a particular locale for the `DateTimeFormatter` rather than rely on the JVM’s current default locale. Returns another separate `DateTimeFormatter` object rather than altering the first, per immutable objects pattern.
) // Returns a `String` object.
10:31 AM
Rather than insisting on 12-hour clock with AM/PM, you may want to let java.time automatically localize for you. Call DateTimeFormatter.ofLocalizedTime
.
To localize, specify:
FormatStyle
to determine how long or abbreviated should the string be.Locale
to determine:
Here we get the current time-of-day as seen in a particular time zone. Then we generate text to represent that time. We localize to French language in Canada culture, then English language in US culture.
ZoneId z = ZoneId.of( "Asia/Tokyo" ) ;
LocalTime localTime = LocalTime.now( z ) ;
// Québec
Locale locale_fr_CA = Locale.CANADA_FRENCH ; // Or `Locale.US`, and so on.
DateTimeFormatter formatterQuébec = DateTimeFormatter.ofLocalizedTime( FormatStyle.SHORT ).withLocale( locale_fr_CA ) ;
String outputQuébec = localTime.format( formatterQuébec ) ;
System.out.println( outputQuébec ) ;
// US
Locale locale_en_US = Locale.US ;
DateTimeFormatter formatterUS = DateTimeFormatter.ofLocalizedTime( FormatStyle.SHORT ).withLocale( locale_en_US ) ;
String outputUS = localTime.format( formatterUS ) ;
System.out.println( outputUS ) ;
See this code run live at IdeOne.com.
10 h 31
10:31 AM
Most languages have path parsing functions that will give you this already. If you have the ability, I'd recommend using what comes to you for free out-of-the-box.
Assuming / is the path delimiter...
^(.*/)([^/]*)$
The first group will be whatever the directory/path info is, the second will be the filename. For example:
Based on the answer by elysch, here is a solution for multiple schemas:
DO $$
DECLARE
r record;
i int;
v_schema text[] := '{public,schema1,schema2,schema3}';
v_new_owner varchar := 'my_new_owner';
BEGIN
FOR r IN
select 'ALTER TABLE "' || table_schema || '"."' || table_name || '" OWNER TO ' || v_new_owner || ';' as a from information_schema.tables where table_schema = ANY (v_schema)
union all
select 'ALTER TABLE "' || sequence_schema || '"."' || sequence_name || '" OWNER TO ' || v_new_owner || ';' as a from information_schema.sequences where sequence_schema = ANY (v_schema)
union all
select 'ALTER TABLE "' || table_schema || '"."' || table_name || '" OWNER TO ' || v_new_owner || ';' as a from information_schema.views where table_schema = ANY (v_schema)
union all
select 'ALTER FUNCTION "'||nsp.nspname||'"."'||p.proname||'"('||pg_get_function_identity_arguments(p.oid)||') OWNER TO ' || v_new_owner || ';' as a from pg_proc p join pg_namespace nsp ON p.pronamespace = nsp.oid where nsp.nspname = ANY (v_schema)
union all
select 'ALTER DATABASE "' || current_database() || '" OWNER TO ' || v_new_owner
LOOP
EXECUTE r.a;
END LOOP;
FOR i IN array_lower(v_schema,1) .. array_upper(v_schema,1)
LOOP
EXECUTE 'ALTER SCHEMA "' || v_schema[i] || '" OWNER TO ' || v_new_owner ;
END LOOP;
END
$$;
Use Not Like
where some_column NOT LIKE '%[^0-9]%'
declare @str varchar(50)='50'--'asdarew345'
select 1 where @str NOT LIKE '%[^0-9]%'
I was able to achieve the desired result by using Alt + Shift + up/down and then typing the desired comment characters and additional character.
None of these answer were working for me on my macbook pro. So what i had to do was go to:
Preferences -> Source Code -> Code Formatting -> C# source code.
From here I could change my style and spacing tabs etc. This is the only project i have where the lead developer has different formatting than i do. It was a pain in the butt that my IDE would format my code different than theirs.
NOTE if you're using PostgreSQL 9.1 or later, and you are ok with making changes outside of a transaction, see this answer for a simpler approach.
I had the same problem few days ago and found this post. So my answer can be helpful for someone who is looking for solution :)
If you have only one or two columns which use the enum type you want to change, you can try this. Also you can change the order of values in the new type.
-- 1. rename the enum type you want to change
alter type some_enum_type rename to _some_enum_type;
-- 2. create new type
create type some_enum_type as enum ('old', 'values', 'and', 'new', 'ones');
-- 3. rename column(s) which uses our enum type
alter table some_table rename column some_column to _some_column;
-- 4. add new column of new type
alter table some_table add some_column some_enum_type not null default 'new';
-- 5. copy values to the new column
update some_table set some_column = _some_column::text::some_enum_type;
-- 6. remove old column and type
alter table some_table drop column _some_column;
drop type _some_enum_type;
3-6 should be repeated if there is more than 1 column.
The other answers have covered the direct question well, but you may also be interested in using set -e
. With that, any command that fails (outside of specific contexts like if
tests) will cause the script to abort. For certain scripts, it's very useful.