Running Android Studio 0.4.0 Solved the problem of importing jar by
Project Structure > Modules > Dependencies > Add Files
Browse to the location of jar file and select it
For those like manual editing Open app/build.gradle
dependencies {
compile files('src/main/libs/xxx.jar')
}
Not every jar file is executable.
Now, you need to import the classes, which are there under the jar, in your java file. For example,
import org.xml.sax.SAXException;
If you are working on an IDE, then you should refer its documentation. Or at least specify which one you are using here in this thread. It would definitely enable us to help you further.
And if you are not using any IDE, then please look at javac -cp option. However, it's much better idea to package your program in a jar
file, and include all the required jar
s within that. Then, in order to execute your jar
, like,
java -jar my_program.jar
you should have a META-INF/MANIFEST.MF
file in your jar
. See here, for how-to.
I launched ubuntu Xampp server on AWS amazon. And met the same problem with FTP, even though add user to group ftp SFTP and set permissions, owner group of htdocs folder. Finally find the reason in inbound rules in security group, added All TCP, 0 - 65535 rule(0.0.0.0/0,::/0) , then working right!
use the net use
command:
net use Z: \\10.0.1.1\DRIVENAME
Edit 1: Also, I believe the password should be simply appended:
net use Z: \\10.0.1.1\DRIVENAME PASSWORD
You can find out more about this command and its arguments via:
net use ?
Edit 2: As Tomalak mentioned in comments, you can later un-map it via
net use Z: \delete
Use .. LIMIT :pageSize OFFSET :pageStart
Where :pageStart
is bound to the_page_index (i.e. 0 for the first page) * number_of_items_per_pages (e.g. 4) and :pageSize
is bound to number_of_items_per_pages.
To detect for "has more pages", either use SQL_CALC_FOUND_ROWS or use .. LIMIT :pageSize OFFSET :pageStart + 1
and detect a missing last (pageSize+1) record. Needless to say, for pages with an index > 0, there exists a previous page.
If the page index value is embedded in the URL (e.g. in "prev page" and "next page" links) then it can be obtained via the appropriate $_GET
item.
You can't select a sheet in a non-active workbook.
You must first activate the workbook, then you can select the sheet.
workbooks("A").activate
workbooks("A").worksheets("B").select
When you use Activate it automatically activates the workbook.
Note you can select >1 sheet in a workbook:
activeworkbook.sheets(array("sheet1","sheet3")).select
but only one sheet can be Active, and if you activate a sheet which is not part of a multi-sheet selection then those other sheets will become un-selected.
The answer from this question provided the answer to this question much more simply.
Write is a special statement designed to generate machine-readable files that are later consumed with Input.
Use Print to avoid any fiddling with data.
Thank you user GSerg
demo
branch into master
git fetch --all
demo
branch on localgit pull origin demo
master
branch. This branch will be completely changed with the code on demo
branchgit checkout master
master
branch and run this command.git reset --hard origin/demo
reset
means you will be resetting current branch
--hard
is a flag that means it will be reset without raising any merge conflict
origin/demo
will be the branch that will be considered to be the code that will forcefully overwrite current master
branch
The output of the above command will show you your last commit message on origin/demo
or demo
branch
Then, in the end, force push the code on the master
branch to your remote repo.
git push --force
If you want to SELECT
based on the value of another SELECT
, then you probably want a "subselect":
http://beginner-sql-tutorial.com/sql-subquery.htm
For example, (from the link above):
You want the first and last names from table "student_details" ...
But you only want this information for those students in "science" class:
SELECT id, first_name
FROM student_details
WHERE first_name IN (SELECT first_name
FROM student_details
WHERE subject= 'Science');
Frankly, I'm not sure this is what you're looking for or not ... but I hope it helps ... at least a little...
IMHO...
There are three scenarios (that I can think of) where you would call a method in a subclass where the method exits in the parent class:
Method is not overwritten by subclass, only exists in parent.
This is the same as your example, and generally it's better to use $this -> get_species();
You are right that in this case the two are effectively the same, but the method has been inherited by the subclass, so there is no reason to differentiate. By using $this
you stay consistent between inherited methods and locally declared methods.
Method is overwritten by the subclass and has totally unique logic from the parent.
In this case, you would obviously want to use $this -> get_species();
because you don't want the parent's version of the method executed. Again, by consistently using $this
, you don't need to worry about the distinction between this case and the first.
Method extends parent class, adding on to what the parent method achieves.
In this case, you still want to use `$this -> get_species();
when calling the method from other methods of the subclass. The one place you will call the parent method would be from the method that is overwriting the parent method. Example:
abstract class Animal {
function get_species() {
echo "I am an animal.";
}
}
class Dog extends Animal {
function __construct(){
$this->get_species();
}
function get_species(){
parent::get_species();
echo "More specifically, I am a dog.";
}
}
The only scenario I can imagine where you would need to call the parent method directly outside of the overriding method would be if they did two different things and you knew you needed the parent's version of the method, not the local. This shouldn't be the case, but if it did present itself, the clean way to approach this would be to create a new method with a name like get_parentSpecies()
where all it does is call the parent method:
function get_parentSpecies(){
parent::get_species();
}
Again, this keeps everything nice and consistent, allowing for changes/modifications to the local method rather than relying on the parent method.
This is much easier than you're making it. The text node will not have the literal string " "
in it, it'll have have the corresponding character with code 160.
function replaceNbsps(str) {
var re = new RegExp(String.fromCharCode(160), "g");
return str.replace(re, " ");
}
textNode.nodeValue = replaceNbsps(textNode.nodeValue);
UPDATE
Even easier:
textNode.nodeValue = textNode.nodeValue.replace(/\u00a0/g, " ");
You can google for IOS Simulator Cropper software useful for capturing screen shots and also easy to use with various options of taking snapshots like with simulator/without simulator.
Update Just pressing CMD + S will give you screenshot saved on desktop. Pretty easy huh..
@Daniel's suggestion worked perfectly for me. To install
make, open Xcode, go to Preferences -> Downloads -> Components -> Command Line Tools.You can then test with
gcc -v
for logical && both the parameters must be true , then it ll be entered in if {} clock otherwise it ll execute else {}. for logical || one of parameter or condition is true is sufficient to execute if {}.
if( (A) && (B) ){
//if A and B both are true
}else{
}
if( (A) ||(B) ){
//if A or B is true
}else{
}
Following code truncates a string and will not split words up, and instead discard the word where the truncation occurred. Totally based on Sugar.js source.
function truncateOnWord(str, limit) {
var trimmable = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u2028\u2029\u3000\uFEFF';
var reg = new RegExp('(?=[' + trimmable + '])');
var words = str.split(reg);
var count = 0;
return words.filter(function(word) {
count += word.length;
return count <= limit;
}).join('');
}
I'd suggest that you create a setenv script whose sole purpose is to provide locations for various components across your system.
All other scripts would then source this script so that all locations are common across all scripts using the setenv script.
This is very useful when running cronjobs. You get a minimal environment when running cron, but if you make all cron scripts first include the setenv script then you are able to control and synchronise the environment that you want the cronjobs to execute in.
We used such a technique on our build monkey that was used for continuous integration across a project of about 2,000 kSLOC.
Inline Stored procedure we using as per our need. Example like different Same parameter with different values we have to use in queries..
Create Proc SP1
(
@ID int,
@Name varchar(40)
-- etc parameter list, If you don't have any parameter then no need to pass.
)
AS
BEGIN
-- Here we have some opereations
-- If there is any Error Before Executing SP2 then SP will stop executing.
Exec SP2 @ID,@Name,@SomeID OUTPUT
-- ,etc some other parameter also we can use OutPut parameters like
-- @SomeID is useful for some other operations for condition checking insertion etc.
-- If you have any Error in you SP2 then also it will stop executing.
-- If you want to do any other operation after executing SP2 that we can do here.
END
I'd just like to note another possible approach - and that is by using git
git-notes(1), in existence since v 1.6.6 (Note to Self - Git) (I'm using git
version 1.7.9.5).
Basically, I used git svn
to clone an SVN repository with linear history (no standard layout, no branches, no tags), and I wanted to compare revision numbers in the cloned git
repository. This git clone doesn't have tags by default, so I cannot use git describe
. The strategy here likely would work only for linear history - not sure how it would turn out with merges etc.; but here is the basic strategy:
git rev-list
for list of all commit history
rev-list
is by default in "reverse chronological order", we'd use its --reverse
switch to get list of commits sorted by oldest firstbash
shell to
git log
with --notes
, which will also dump a commit's note, which in this case would be the "revision number"git status
)First, let's note that git
has a default location of notes - but you can also specify a ref
(erence) for notes - which would store them in a different directory under .git
; for instance, while in a git
repo folder, you can call git notes get-ref
to see what directory that will be:
$ git notes get-ref
refs/notes/commits
$ git notes --ref=whatever get-ref
refs/notes/whatever
The thing to be noted is that if you notes add
with a --ref
, you must also afterwards use that reference again - otherwise you may get errors like "No note found for object XXX...".
For this example, I have chosen to call the ref
of the notes "linrev" (for linear revision) - this also means it is not likely the procedure will interfere with already existing notes. I am also using the --git-dir
switch, since being a git
newbie, I had some problems understanding it - so I'd like to "remember for later" :)
; and I also use --no-pager
to suppress spawning of less
when using git log
.
So, assuming you're in a directory, with a subfolder myrepo_git
which is a git
repository; one could do:
### check for already existing notes:
$ git --git-dir=./myrepo_git/.git notes show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.
$ git --git-dir=./myrepo_git/.git notes --ref=linrev show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.
### iterate through rev-list three, oldest first,
### create a cmdline adding a revision count as note to each revision
$ ix=0; for ih in $(git --git-dir=./myrepo_git/.git rev-list --reverse HEAD); do \
TCMD="git --git-dir=./myrepo_git/.git notes --ref linrev"; \
TCMD="$TCMD add $ih -m \"(r$((++ix)))\""; \
echo "$TCMD"; \
eval "$TCMD"; \
done
# git --git-dir=./myrepo_git/.git notes --ref linrev add 6886bbb7be18e63fc4be68ba41917b48f02e09d7 -m "(r1)"
# git --git-dir=./myrepo_git/.git notes --ref linrev add f34910dbeeee33a40806d29dd956062d6ab3ad97 -m "(r2)"
# ...
# git --git-dir=./myrepo_git/.git notes --ref linrev add 04051f98ece25cff67e62d13c548dacbee6c1e33 -m "(r15)"
### check status - adding notes seem to not affect it:
$ cd myrepo_git/
$ git status
# # On branch master
# nothing to commit (working directory clean)
$ cd ../
### check notes again:
$ git --git-dir=./myrepo_git/.git notes show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.
$ git --git-dir=./myrepo_git/.git notes --ref=linrev show
# (r15)
### note is saved - now let's issue a `git log` command, using a format string and notes:
$ git --git-dir=./myrepo_git/.git --no-pager log --notes=linrev --format=format:"%h: %an: %ad: >>%s<< %N" HEAD
# 04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000: >>test message 15 << (r15)
# 77f3902: _user_: Sun Apr 21 18:29:00 2013 +0000: >>test message 14<< (r14)
# ...
# 6886bbb: _user_: Sun Apr 21 17:11:52 2013 +0000: >>initial test message 1<< (r1)
### test git log with range:
$ git --git-dir=./myrepo_git/.git --no-pager log --notes=linrev --format=format:"%h: %an: %ad: >>%s<< %N" HEAD^..HEAD
# 04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000: >>test message 15 << (r15)
### erase notes - again must iterate through rev-list
$ ix=0; for ih in $(git --git-dir=./myrepo_git/.git rev-list --reverse HEAD); do \
TCMD="git --git-dir=./myrepo_git/.git notes --ref linrev"; \
TCMD="$TCMD remove $ih"; \
echo "$TCMD"; \
eval "$TCMD"; \
done
# git --git-dir=./myrepo_git/.git notes --ref linrev remove 6886bbb7be18e63fc4be68ba41917b48f02e09d7
# Removing note for object 6886bbb7be18e63fc4be68ba41917b48f02e09d7
# git --git-dir=./myrepo_git/.git notes --ref linrev remove f34910dbeeee33a40806d29dd956062d6ab3ad97
# Removing note for object f34910dbeeee33a40806d29dd956062d6ab3ad97
# ...
# git --git-dir=./myrepo_git/.git notes --ref linrev remove 04051f98ece25cff67e62d13c548dacbee6c1e33
# Removing note for object 04051f98ece25cff67e62d13c548dacbee6c1e33
### check notes again:
$ git --git-dir=./myrepo_git/.git notes show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.
$ git --git-dir=./myrepo_git/.git notes --ref=linrev show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.
So, at least in my specific case of fully linear history with no branches, the revision numbers seem to match with this approach - and additionally, it seems that this approach will allow using git log
with revision ranges, while still getting the right revision numbers - YMMV with a different context, though...
Hope this helps someone,
Cheers!
EDIT: Ok, here it is a bit easier, with git
aliases for the above loops, called setlinrev
and unsetlinrev
; when in your git repository folder, do (Note the nasty bash
escaping, see also #16136745 - Add a Git alias containing a semicolon):
cat >> .git/config <<"EOF"
[alias]
setlinrev = "!bash -c 'ix=0; for ih in $(git rev-list --reverse HEAD); do \n\
TCMD=\"git notes --ref linrev\"; \n\
TCMD=\"$TCMD add $ih -m \\\"(r\\$((++ix)))\\\"\"; \n\
#echo \"$TCMD\"; \n\
eval \"$TCMD\"; \n\
done; \n\
echo \"Linear revision notes are set.\" '"
unsetlinrev = "!bash -c 'ix=0; for ih in $(git rev-list --reverse HEAD); do \n\
TCMD=\"git notes --ref linrev\"; \n\
TCMD=\"$TCMD remove $ih\"; \n\
#echo \"$TCMD\"; \n\
eval \"$TCMD 2>/dev/null\"; \n\
done; \n\
echo \"Linear revision notes are unset.\" '"
EOF
... so you can simply invoke git setlinrev
before trying to do log involving linear revision notes; and git unsetlinrev
to delete those notes when you're done; an example from inside the git repo directory:
$ git log --notes=linrev --format=format:"%h: %an: %ad: >>%s<< %N" HEAD^..HEAD
04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000: >>test message 15 <<
$ git setlinrev
Linear revision notes are set.
$ git log --notes=linrev --format=format:"%h: %an: %ad: >>%s<< %N" HEAD^..HEAD
04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000: >>test message 15 << (r15)
$ git unsetlinrev
Linear revision notes are unset.
$ git log --notes=linrev --format=format:"%h: %an: %ad: >>%s<< %N" HEAD^..HEAD
04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000: >>test message 15 <<
The time it would take the shell to complete these aliases, would depend on the size of the repository history.
The warning is indeed annoying and in many (most!) cases no contentDescription is necessary for various decorative ImageViews. The most radical way to solve the problem is just to tell the Lint to ignore this check. In Eclipse, go to "Android/Lint Error Checking" in Preferences, find "contentDescription" (it is in the "Accessibility" group) and change "Severity:" to Ignore.
This may not be the answer you're looking for, but I'd recommend using the now community maintained repository Laravel Collective Forms & HTML as the main repositories have been deprecated.
Laravel Collective is in the process of updating their website. You may view the documentation on GitHub if needed.
Somehow didn't like the hacky solutions of storing static values so came up with a bit longer but a clean version which can be tested as well.
Found 2 possible ways to do it-
e.g.
data class MyModel(val resources: Resources) {
fun getNameString(): String {
resources.getString(R.string.someString)
}
}
Before you read: This version uses Data binding
XML-
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<data>
<variable
name="someStringFetchedFromRes"
type="String" />
</data>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@{someStringFetchedFromRes}" />
</layout>
Activity/Fragment-
val binding = NameOfYourBinding.inflate(inflater)
binding.someStringFetchedFromRes = resources.getString(R.string.someStringFetchedFromRes)
Sometimes, you need to change the text based on a field in a model. So you would data-bind that model as well and since your activity/fragment knows about the model, you can very well fetch the value and then data-bind the string based on that.
The view-source url prefix trick didn't work for me using chrome on an iphone. There are apps I could have installed to do this I guess but for whatever reason I just preferred to do it myself rather than install 'yet another app'.
I found this nice quick tutorial for how to setup a bookmark on mobile safari that will automatically open the view source of a page: https://appletoolbox.com/2014/03/how-to-view-webpage-html-source-codes-on-ipad-iphone-no-app-required/
It worked flawlessly for me and now I have it set as a permanent bookmark any time I want, with no app installed.
Edit: There are basically 6 steps which should work for either Chrome or Safari. Instructions for Safari are:
javascript:(function(){var a=window.open('about:blank').document;a.write('<!DOCTYPE html><html><head><title>Source of '+location.href+'</title><meta name="viewport" content="width=device-width" /></head><body></body></html>');a.close();var b=a.body.appendChild(a.createElement('pre'));b.style.overflow='auto';b.style.whiteSpace='pre-wrap';b.appendChild(a.createTextNode(document.documentElement.innerHTML))})();
To fix center position, I use:
open : function() {
var t = $(this).parent(), w = window;
t.offset({
top: (w.height() / 2) - (t.height() / 2),
left: (w.width() / 2) - (t.width() / 2)
});
}
does it work with an antislash before the [
?
\[
or \\[
?
The correct thing to do is use the 'string-escape' code to decode the string.
>>> myString = "spam\\neggs"
>>> decoded_string = bytes(myString, "utf-8").decode("unicode_escape") # python3
>>> decoded_string = myString.decode('string_escape') # python2
>>> print(decoded_string)
spam
eggs
Don't use the AST or eval. Using the string codecs is much safer.
Even though this is an old question, I would like to add a new thought to the discussion. I have extended the Arrange, Act, Assert pattern to be Expected, Arrange, Act, Assert. You can make an expected exception pointer, then assert it was assigned to. This feels cleaner than doing your Asserts in a catch block, leaving your Act section mostly just for the one line of code to call the method under test. You also don't have to Assert.Fail();
or return
from multiple points in the code. Any other exception thrown will cause the test to fail, because it won't be caught, and if an exception of your expected type is thrown, but the it wasn't the one you were expecting, Asserting against the message or other properties of the exception help make sure your test won't pass inadvertently.
[TestMethod]
public void Bar_InvalidDependency_ThrowsInvalidOperationException()
{
// Expectations
InvalidOperationException expectedException = null;
string expectedExceptionMessage = "Bar did something invalid.";
// Arrange
IDependency dependency = DependencyMocks.Create();
Foo foo = new Foo(dependency);
// Act
try
{
foo.Bar();
}
catch (InvalidOperationException ex)
{
expectedException = ex;
}
// Assert
Assert.IsNotNull(expectedException);
Assert.AreEqual(expectedExceptionMessage, expectedException.Message);
}
I know this is an older question, but I wanted to post an answer for users with the same question:
curl -H 'Cache-Control: no-cache' http://www.example.com
This curl command servers in its header request to return non-cached data from the web server.
In my case it was because I had another folder that contained xampp and all it's files (htdocs, php e.t.c). Like I installed Xampp twice in different directories and for some reason the configurations of the other one was affecting my current xampp directory and so I had to change the memory size in the php.ini file of the other directory too.
If I can rephrase your question, what you want is a dictionary with the years as keys and an array for each year containing a list of values associated with that year, right? Here's how I'd do it:
years_dict = dict()
for line in list:
if line[0] in years_dict:
# append the new number to the existing array at this slot
years_dict[line[0]].append(line[1])
else:
# create a new array in this slot
years_dict[line[0]] = [line[1]]
What you should end up with in years_dict is a dictionary that looks like the following:
{
"2010": [2],
"2009": [4,7],
"1989": [8]
}
In general, it's poor programming practice to create "parallel arrays", where items are implicitly associated with each other by having the same index rather than being proper children of a container that encompasses them both.
If you only have one input you can use the form tag.
<form ng-submit="myFunc()" ...>
If you have more than one input, or don't want to use the form tag, or want to attach the enter-key functionality to a specific field, you can inline it to a specific input as follows:
<input ng-keyup="$event.keyCode == 13 && myFunc()" ...>
array.map{ |i| %Q('#{i}') }.join(',')
777
is a permission in Unix based system with full read/write/execute permission to owner, group and everyone.. in general we give this permission to assets which are not much needed to be hidden from public on a web server, for example images..
You said I am using windows 7.
if that means that your web server is Windows based then you should login to that and right click the folder and set permissions to everyone
and if you are on a windows client and server is unix/linux based then use some ftp software and in the parent directory right click and change the permission for the folder.
If you want permission to be set on sub-directories
too then usually their is option to set permission recursively use that.
And, if you feel like doing it from command line the use putty and login to server and go to the parent directory includes
and write the following command
chmod 0777 module_installation/
for recursive
chmod -R 0777 module_installation/
Hope this will help you
I've tryied all answers of this topic, but just this below worked fine on my project.
Angular 7 and AGM Core 1.0.0-beta.7
<agm-map [latitude]="lat" [longitude]="long" [zoom]="zoom" [fitBounds]="true">
<agm-marker latitude="{{localizacao.latitude}}" longitude="{{localizacao.longitude}}" [agmFitBounds]="true"
*ngFor="let localizacao of localizacoesTec">
</agm-marker>
</agm-map>
The properties [agmFitBounds]="true"
at agm-marker
and [fitBounds]="true"
at agm-map
does the job
One important point that is alluded to but not directly addressed is the difference between "precision" and "scale" and how they are used in the two statements. "precision" is the total number of significant digits in a number. "scale" is the number of digits to the right of the decimal point.
The MathContext constructor only accepts precision and RoundingMode as arguments, and therefore scale is never specified in the first statement.
setScale()
obviously accepts scale as an argument, as well as RoundingMode, however precision is never specified in the second statement.
If you move the decimal point one place to the right, the difference will become clear:
// 1.
new BigDecimal("35.3456").round(new MathContext(4, RoundingMode.HALF_UP));
//result = 35.35
// 2.
new BigDecimal("35.3456").setScale(4, RoundingMode.HALF_UP);
// result = 35.3456
1) Upgrade using windows update or using "media creation tool" http://windows.microsoft.com/en-us/windows-10/media-creation-tool-install
When Windows 10 installed check that it is activated.
2) Now as you have activated Windows 10 using "media creation tool" http://windows.microsoft.com/en-us/windows-10/media-creation-tool-install select second option "Create installation media for another PC" here you can select Windows version and its language. Make sure that Windows version is also "Single Language"
3) Boot from you device, USB in my case and install clean Windows in English or any other language you selected.
reference http://bit.ly/1RKmPBs
In case of password reset, it is recommended to reset it through sending password reset token to registered user email and ask user to provide new password. If have created a easily usable .NET library over Identity framework with default configuration settins. You can find details at blog link and source code at github.
To clear all inputs, including hidden fields, using JQuery:
// Behold the power of JQuery.
$('input').val('');
Selects are harder, because they have a fixed list. Do you want to clear that list, or just the selection.
Could be something like
$('option').attr('selected', false);
try this :Float.valueOf(android.os.Build.VERSION.RELEASE) <= 2.1
That's ok not a big problem . thing is u got to find the proportional width and height
like if size is 2048.0 x 1360.0 which has to be resized to 320 x 480 resolution then the resulting image size should be 722.0 x 480.0
here is the formulae to do that . if w,h is original and x,y are resulting image.
w/h=x/y
=>
x=(w/h)*y;
submitting w=2048,h=1360,y=480 => x=722.0 ( here width>height. if height>width then consider x to be 320 and calculate y)
U can submit in this web page . ARC
Confused ? alright , here is category for UIImage which will do the thing for you.
@interface UIImage (UIImageFunctions)
- (UIImage *) scaleToSize: (CGSize)size;
- (UIImage *) scaleProportionalToSize: (CGSize)size;
@end
@implementation UIImage (UIImageFunctions)
- (UIImage *) scaleToSize: (CGSize)size
{
// Scalling selected image to targeted size
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(NULL, size.width, size.height, 8, 0, colorSpace, kCGImageAlphaPremultipliedLast);
CGContextClearRect(context, CGRectMake(0, 0, size.width, size.height));
if(self.imageOrientation == UIImageOrientationRight)
{
CGContextRotateCTM(context, -M_PI_2);
CGContextTranslateCTM(context, -size.height, 0.0f);
CGContextDrawImage(context, CGRectMake(0, 0, size.height, size.width), self.CGImage);
}
else
CGContextDrawImage(context, CGRectMake(0, 0, size.width, size.height), self.CGImage);
CGImageRef scaledImage=CGBitmapContextCreateImage(context);
CGColorSpaceRelease(colorSpace);
CGContextRelease(context);
UIImage *image = [UIImage imageWithCGImage: scaledImage];
CGImageRelease(scaledImage);
return image;
}
- (UIImage *) scaleProportionalToSize: (CGSize)size1
{
if(self.size.width>self.size.height)
{
NSLog(@"LandScape");
size1=CGSizeMake((self.size.width/self.size.height)*size1.height,size1.height);
}
else
{
NSLog(@"Potrait");
size1=CGSizeMake(size1.width,(self.size.height/self.size.width)*size1.width);
}
return [self scaleToSize:size1];
}
@end
-- the following is appropriate call to do this if img is the UIImage instance.
img=[img scaleProportionalToSize:CGSizeMake(320, 480)];
I know this post is a bit old, but thought I would add the functions I use that take into account any filters and any <![CDATA[some stuff]]>
content you want to safely exclude.
Simply add to your functions.php file and use anywhere you would like, such as:
content(53);
or
excerpt(27);
Enjoy!
//limit excerpt
function excerpt($limit) {
$excerpt = explode(' ', get_the_excerpt(), $limit);
if (count($excerpt)>=$limit) {
array_pop($excerpt);
$excerpt = implode(" ",$excerpt).'...';
} else {
$excerpt = implode(" ",$excerpt);
}
$excerpt = preg_replace('`\[[^\]]*\]`','',$excerpt);
return $excerpt;
}
//limit content
function content($limit) {
$content = explode(' ', get_the_content(), $limit);
if (count($content)>=$limit) {
array_pop($content);
$content = implode(" ",$content).'...';
} else {
$content = implode(" ",$content);
}
$content = preg_replace('/\[.+\]/','', $content);
$content = apply_filters('the_content', $content);
$content = str_replace(']]>', ']]>', $content);
return $content;
}
I always use pseudo elements :before
and :after
for changing the appearance of checkboxes and radio buttons. it's works like a charm.
Refer this link for more info
Steps
visibility:hidden
or opacity:0
or position:absolute;left:-9999px
etc.:before
element and pass either an empty or a non-breaking space '\00a0'
;:checked
state, pass the unicode content: "\2713"
, which is a checkmark;:focus
style to make the checkbox accessible.Here is how I did it.
.box {_x000D_
background: #666666;_x000D_
color: #ffffff;_x000D_
width: 250px;_x000D_
padding: 10px;_x000D_
margin: 1em auto;_x000D_
}_x000D_
p {_x000D_
margin: 1.5em 0;_x000D_
padding: 0;_x000D_
}_x000D_
input[type="checkbox"] {_x000D_
visibility: hidden;_x000D_
}_x000D_
label {_x000D_
cursor: pointer;_x000D_
}_x000D_
input[type="checkbox"] + label:before {_x000D_
border: 1px solid #333;_x000D_
content: "\00a0";_x000D_
display: inline-block;_x000D_
font: 16px/1em sans-serif;_x000D_
height: 16px;_x000D_
margin: 0 .25em 0 0;_x000D_
padding: 0;_x000D_
vertical-align: top;_x000D_
width: 16px;_x000D_
}_x000D_
input[type="checkbox"]:checked + label:before {_x000D_
background: #fff;_x000D_
color: #333;_x000D_
content: "\2713";_x000D_
text-align: center;_x000D_
}_x000D_
input[type="checkbox"]:checked + label:after {_x000D_
font-weight: bold;_x000D_
}_x000D_
_x000D_
input[type="checkbox"]:focus + label::before {_x000D_
outline: rgb(59, 153, 252) auto 5px;_x000D_
}
_x000D_
<div class="content">_x000D_
<div class="box">_x000D_
<p>_x000D_
<input type="checkbox" id="c1" name="cb">_x000D_
<label for="c1">Option 01</label>_x000D_
</p>_x000D_
<p>_x000D_
<input type="checkbox" id="c2" name="cb">_x000D_
<label for="c2">Option 02</label>_x000D_
</p>_x000D_
<p>_x000D_
<input type="checkbox" id="c3" name="cb">_x000D_
<label for="c3">Option 03</label>_x000D_
</p>_x000D_
</div>_x000D_
</div>
_x000D_
Much more stylish using :before
and :after
body{_x000D_
font-family: sans-serif; _x000D_
}_x000D_
_x000D_
.container {_x000D_
margin-top: 50px;_x000D_
margin-left: 20px;_x000D_
margin-right: 20px;_x000D_
}_x000D_
.checkbox {_x000D_
width: 100%;_x000D_
margin: 15px auto;_x000D_
position: relative;_x000D_
display: block;_x000D_
}_x000D_
_x000D_
.checkbox input[type="checkbox"] {_x000D_
width: auto;_x000D_
opacity: 0.00000001;_x000D_
position: absolute;_x000D_
left: 0;_x000D_
margin-left: -20px;_x000D_
}_x000D_
.checkbox label {_x000D_
position: relative;_x000D_
}_x000D_
.checkbox label:before {_x000D_
content: '';_x000D_
position: absolute;_x000D_
left: 0;_x000D_
top: 0;_x000D_
margin: 4px;_x000D_
width: 22px;_x000D_
height: 22px;_x000D_
transition: transform 0.28s ease;_x000D_
border-radius: 3px;_x000D_
border: 2px solid #7bbe72;_x000D_
}_x000D_
.checkbox label:after {_x000D_
content: '';_x000D_
display: block;_x000D_
width: 10px;_x000D_
height: 5px;_x000D_
border-bottom: 2px solid #7bbe72;_x000D_
border-left: 2px solid #7bbe72;_x000D_
-webkit-transform: rotate(-45deg) scale(0);_x000D_
transform: rotate(-45deg) scale(0);_x000D_
transition: transform ease 0.25s;_x000D_
will-change: transform;_x000D_
position: absolute;_x000D_
top: 12px;_x000D_
left: 10px;_x000D_
}_x000D_
.checkbox input[type="checkbox"]:checked ~ label::before {_x000D_
color: #7bbe72;_x000D_
}_x000D_
_x000D_
.checkbox input[type="checkbox"]:checked ~ label::after {_x000D_
-webkit-transform: rotate(-45deg) scale(1);_x000D_
transform: rotate(-45deg) scale(1);_x000D_
}_x000D_
_x000D_
.checkbox label {_x000D_
min-height: 34px;_x000D_
display: block;_x000D_
padding-left: 40px;_x000D_
margin-bottom: 0;_x000D_
font-weight: normal;_x000D_
cursor: pointer;_x000D_
vertical-align: sub;_x000D_
}_x000D_
.checkbox label span {_x000D_
position: absolute;_x000D_
top: 50%;_x000D_
-webkit-transform: translateY(-50%);_x000D_
transform: translateY(-50%);_x000D_
}_x000D_
.checkbox input[type="checkbox"]:focus + label::before {_x000D_
outline: 0;_x000D_
}
_x000D_
<div class="container"> _x000D_
<div class="checkbox">_x000D_
<input type="checkbox" id="checkbox" name="" value="">_x000D_
<label for="checkbox"><span>Checkbox</span></label>_x000D_
</div>_x000D_
_x000D_
<div class="checkbox">_x000D_
<input type="checkbox" id="checkbox2" name="" value="">_x000D_
<label for="checkbox2"><span>Checkbox</span></label>_x000D_
</div>_x000D_
</div>
_x000D_
It can be done all on the client-side using the OnClientClick
[MSDN] event handler and window.open
[MDN]:
<asp:Button
runat="server"
OnClientClick="window.open('http://www.stackoverflow.com'); return false;">
Open a new window!
</asp:Button>
Format the redirect URL in the following way:
stuff.mysite.org.uk$S$Q
The $S
will say that any path must be applied to the new URL.
$Q
says that any parameter variables must be passed to the new URL.
In IIS 7.0, you must enable the option Redirect to exact destination
.
I believe there must be an option like this in IIS 6.0 too.
You can use operator Contains
,
private void ContainColumn(string columnName, DataTable table)
{
DataColumnCollection columns = table.Columns;
if (columns.Contains(columnName))
{
....
}
}
My full answer is here, but here is an explanatory image to supplement the other answers on this page. For me, understanding where all the variables were going was the most confusing part in the beginning.
Since PHP 5.4 you can use:
htmlspecialchars($string, ENT_XML1);
You should specify the encoding, such as:
htmlspecialchars($string, ENT_XML1, 'UTF-8');
Note that the above will only convert:
&
to &
<
to <
>
to >
If you want to escape text for use in an attribute enclosed in double quotes:
htmlspecialchars($string, ENT_XML1 | ENT_COMPAT, 'UTF-8');
will convert "
to "
in addition to &
, <
and >
.
And if your attributes are enclosed in single quotes:
htmlspecialchars($string, ENT_XML1 | ENT_QUOTES, 'UTF-8');
will convert '
to '
in addition to &
, <
, >
and "
.
(Of course you can use this even outside of attributes).
Note that time.gmtime
maps timestamp 0
to 1970-1-1 00:00:00
.
In [61]: import time
In [63]: time.gmtime(0)
Out[63]: time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)
time.mktime(time.gmtime(0))
gives you a timestamp shifted by an amount that depends on your locale, which in general may not be 0.
In [64]: time.mktime(time.gmtime(0))
Out[64]: 18000.0
The inverse of time.gmtime
is calendar.timegm
:
In [62]: import calendar
In [65]: calendar.timegm(time.gmtime(0))
Out[65]: 0
The headers are entirely encrypted. The only information going over the network 'in the clear' is related to the SSL setup and D/H key exchange. This exchange is carefully designed not to yield any useful information to eavesdroppers, and once it has taken place, all data is encrypted.
The history seem to look like this:
Google needs a storage layer for their inverted search index. They figure a traditional RDBMS is not going to cut it. So they implement a NoSQL data store, BigTable on top of their GFS file system. The major part is that thousands of cheap commodity hardware machines provides the speed and the redundancy.
Everyone else realizes what Google just did.
Brewers CAP theorem is proven. All RDBMS systems of use are CA systems. People begin playing with CP and AP systems as well. K/V stores are vastly simpler, so they are the primary vehicle for the research.
Software-as-a-service systems in general do not provide an SQL-like store. Hence, people get more interested in the NoSQL type stores.
I think much of the take-off can be related to this history. Scaling Google took some new ideas at Google and everyone else follows suit because this is the only solution they know to the scaling problem right now. Hence, you are willing to rework everything around the distributed database idea of Google because it is the only way to scale beyond a certain size.
C - Consistency
A - Availability
P - Partition tolerance
K/V - Key/Value
Here is my answer in Python 2.7
from datetime import datetime
import tzlocal # pip install tzlocal
print datetime.now(tzlocal.get_localzone()).strftime("%Y-%m-%d %H:%M:%S %z")
from datetime import datetime
import pytz # pip install pytz
print datetime.now(pytz.timezone('Asia/Taipei')).strftime("%Y-%m-%d %H:%M:%S %z")
It will print something like
2017-08-10 20:46:24 +0800
Using simple autofocus
HTML5 attribute works for 'on load' scenario
<input autofocus placeholder="enter text" [(ngModel)]="test">
or
<button autofocus (click)="submit()">Submit</button>
If you get a python error like this:
AttributeError: 'str' object has no attribute 'some_method'
You probably poisoned your object accidentally by overwriting your object with a string.
How to reproduce this error in python with a few lines of code:
#!/usr/bin/env python
import json
def foobar(json):
msg = json.loads(json)
foobar('{"batman": "yes"}')
Run it, which prints:
AttributeError: 'str' object has no attribute 'loads'
But change the name of the variablename, and it works fine:
#!/usr/bin/env python
import json
def foobar(jsonstring):
msg = json.loads(jsonstring)
foobar('{"batman": "yes"}')
This error is caused when you tried to run a method within a string. String has a few methods, but not the one you are invoking. So stop trying to invoke a method which String does not define and start looking for where you poisoned your object.
I published an update to my app yesterday noon(I have selected Manual release instead of Automatic) and Today early morning App store review was completed and after I release the build manually, the App shows Ready for sale in iTunesConect immediately. After 45mins I got the update on the App store.
First you will need to install node definitions for Typescript. You can find the definitions file here:
https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/node/node.d.ts
Once you've got file, just add the reference to your .ts
file like this:
/// <reference path="path/to/node.d.ts" />
Then you can code your typescript class that read/writes, using the Node File System module. Your typescript class myClass.ts
can look like this:
/// <reference path="path/to/node.d.ts" />
class MyClass {
// Here we import the File System module of node
private fs = require('fs');
constructor() { }
createFile() {
this.fs.writeFile('file.txt', 'I am cool!', function(err) {
if (err) {
return console.error(err);
}
console.log("File created!");
});
}
showFile() {
this.fs.readFile('file.txt', function (err, data) {
if (err) {
return console.error(err);
}
console.log("Asynchronous read: " + data.toString());
});
}
}
// Usage
// var obj = new MyClass();
// obj.createFile();
// obj.showFile();
Once you transpile your .ts
file to a javascript (check out here if you don't know how to do it), you can run your javascript file with node and let the magic work:
> node myClass.js
A common solution is to upgrade magento setup by running this command
php bin/magento setup:upgrade && php bin/magento setup:di:compile
Otherwise just check var/report/{error number}
Try this:
if [ ${STATUS} -ne 100 -a "${STRING}" = "${VALUE}" ]
or
if [ ${STATUS} -ne 100 ] && [ "${STRING}" = "${VALUE}" ]
Scroll down on this link and view the section, it gives you a comparative example as seen below:
<?php
/** Fetches the value of $_GET['user'] and returns 'nobody' if it does not exist. **/
$username = $_GET['user'] ?? 'nobody';
/** This is equivalent to: **/
$username = isset($_GET['user']) ? $_GET['user'] : 'nobody';
/** Coalescing can be chained: this will return the first defined value out of $_GET['user'], $_POST['user'], and 'nobody'. **/
$username = $_GET['user'] ?? $_POST['user'] ?? 'nobody';
?>
However, it is not advised to chain the operators as it makes it harder to understand the code when reading it later on.
The null coalescing operator (??) has been added as syntactic sugar for the common case of needing to use a ternary in conjunction with isset(). It returns its first operand if it exists and is not NULL; otherwise it returns its second operand.
Essentially, using the coalescing operator will make it auto check for null unlike the ternary operator.
Added some more logic to solution provided by @Andrew Burgess. Here is the full solution:
Created a action filter to get errors for ajax request:
public class ValidateAjaxAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (!filterContext.HttpContext.Request.IsAjaxRequest())
return;
var modelState = filterContext.Controller.ViewData.ModelState;
if (!modelState.IsValid)
{
var errorModel =
from x in modelState.Keys
where modelState[x].Errors.Count > 0
select new
{
key = x,
errors = modelState[x].Errors.
Select(y => y.ErrorMessage).
ToArray()
};
filterContext.Result = new JsonResult()
{
Data = errorModel
};
filterContext.HttpContext.Response.StatusCode =
(int)HttpStatusCode.BadRequest;
}
}
}
Added the filter to my controller method as:
[HttpPost]
// this line is important
[ValidateAjax]
public ActionResult AddUpdateData(MyModel model)
{
return Json(new { status = (result == 1 ? true : false), message = message }, JsonRequestBehavior.AllowGet);
}
Added a common script for jquery validation:
function onAjaxFormError(data) {
var form = this;
var errorResponse = data.responseJSON;
$.each(errorResponse, function (index, value) {
// Element highlight
var element = $(form).find('#' + value.key);
element = element[0];
highLightError(element, 'input-validation-error');
// Error message
var validationMessageElement = $('span[data-valmsg-for="' + value.key + '"]');
validationMessageElement.removeClass('field-validation-valid');
validationMessageElement.addClass('field-validation-error');
validationMessageElement.text(value.errors[0]);
});
}
$.validator.setDefaults({
ignore: [],
highlight: highLightError,
unhighlight: unhighlightError
});
var highLightError = function(element, errorClass) {
element = $(element);
element.addClass(errorClass);
}
var unhighLightError = function(element, errorClass) {
element = $(element);
element.removeClass(errorClass);
}
Finally added the error javascript method to my Ajax Begin form:
@model My.Model.MyModel
@using (Ajax.BeginForm("AddUpdateData", "Home", new AjaxOptions { HttpMethod = "POST", OnFailure="onAjaxFormError" }))
{
}
You can use a tool like the TrIDNet - File Identifier to look for the Magic Number and other telltales, if the file format is in it's database it may tell you what it is for.
However searching the definitions did not turn up anything for the string "FLDB", but it checks more than magic numbers so it is worth a try.
If you are using Linux File is a command that will do a similar task.
The other thing to try is if you have access to the program that generated this file, there may be DLL's or EXE's from the database software that may contain meta information about the dll's creator which could give you a starting point for looking for software that can read the file outside of the program that originally created the .db
file.
Can do this, But not really necessary
Jason Lee got the answer. When installing xCode I preferred keeping previous installations rather than replacing them. So I have these in my installation Folder
So /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs
Contain different sdks. (Replace Xcode.app with correct number) copy previous sdks to
/Applications/Xcode 3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs
Here is my folder after I copied one.
Now restart xCode and you can set previous versions of sdks as base sdk.
Refering Apple Documentaion
To use a particular SDK for an Xcode project, make two selections in your project’s build settings.
Choose a deployment target.
This identifies the earliest OS version on which your software can run.
Choose a base SDK
Your software can use features available in OS versions up to and including the one corresponding to the base SDK. By default , Xcode sets this to the newest OS supported by Xcode.
For example you can use iOS 7 as base sdk and set iOS 6 as deployment target. Run on iOS 6 simulator to test how it works on iOS 6. Install simulator if not available with list of simulators.
Additionaly You can unconditionally use features upto iOS 6. And Conditionally you can support new features of iOS 7 for new updated devices while supporting previous versions.
This can be done using Weakly Linked Classes ,Weakly Linked Methods, Functions, and Symbols
Suppose in Xcode you set the deployment target (minimum required version) to iOS6 and the target SDK (maximum allowed version) to iOS7. During compilation, the compiler would weakly link any interfaces that were introduced in iOS7 while strongly linking earlier interfaces. This would allow your application to continue running on iOS6 but still take advantage of newer features when they are available.
This comment syntax should work for you:
@* enter comments here *@
A "one liner" (on many line for easy read)) to be put directly into a variable:
var oneMonthAgo = new Date(
new Date().getFullYear(),
new Date().getMonth() - 1,
new Date().getDate()
);
I was able to use the name attribute that you described in your example for the loop I am working on and it worked, perhaps because I created unique ids? I'm still considering whether I should switch to an editor template instead as mentioned in the links in another answer.
@Html.RadioButtonFor(modelItem => item.Answers.AnswerYesNo, "true", new {Name = item.Description.QuestionId, id = string.Format("CBY{0}", item.Description.QuestionId), onclick = "setDescriptionVisibility(this)" }) Yes
@Html.RadioButtonFor(modelItem => item.Answers.AnswerYesNo, "false", new { Name = item.Description.QuestionId, id = string.Format("CBN{0}", item.Description.QuestionId), onclick = "setDescriptionVisibility(this)" } ) No
If you have a bunch of chars and want to concat them into a string, why not do
System.out.println("" + char1 + char2 + char3);
?
The scaling on your example figure is a bit strange but you can force it by plotting the index of each x-value and then setting the ticks to the data points:
import matplotlib.pyplot as plt
x = [0.00001,0.001,0.01,0.1,0.5,1,5]
# create an index for each tick position
xi = list(range(len(x)))
y = [0.945,0.885,0.893,0.9,0.996,1.25,1.19]
plt.ylim(0.8,1.4)
# plot the index for the x-values
plt.plot(xi, y, marker='o', linestyle='--', color='r', label='Square')
plt.xlabel('x')
plt.ylabel('y')
plt.xticks(xi, x)
plt.title('compare')
plt.legend()
plt.show()
This is what I ended up using. Temporarily sets target to _blank, then sets it back.
OnClientClick="var originalTarget = document.forms[0].target; document.forms[0].target = '_blank'; setTimeout(function () { document.forms[0].target = originalTarget; }, 3000);"
So, something like the $_POST
array?
You can use http_build_query($_POST)
to get them in a var=xxx&var2=yyy
string again. Or just print_r($_POST)
to see what's there.
you can see in my example font sizes and background colors are changing according to the screen size
<!DOCTYPE html>_x000D_
<html>_x000D_
<head>_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1.0">_x000D_
<style>_x000D_
body {_x000D_
background-color: lightgreen;_x000D_
}_x000D_
/* Custom, iPhone Retina */ _x000D_
@media(max-width:320px){_x000D_
body {_x000D_
background-color: lime;_x000D_
font-size:14px;_x000D_
}_x000D_
}_x000D_
@media only screen and (min-width : 320px) {_x000D_
body {_x000D_
background-color: red;_x000D_
font-size:18px;_x000D_
}_x000D_
}_x000D_
/* Extra Small Devices, Phones */ _x000D_
@media only screen and (min-width : 480px) {_x000D_
body {_x000D_
background-color: aqua;_x000D_
font-size:24px;_x000D_
}_x000D_
}_x000D_
/* Small Devices, Tablets */_x000D_
@media only screen and (min-width : 768px) {_x000D_
body {_x000D_
background-color: green;_x000D_
font-size:30px;_x000D_
}_x000D_
}_x000D_
/* Medium Devices, Desktops */_x000D_
@media only screen and (min-width : 992px) {_x000D_
body {_x000D_
background-color: grey;_x000D_
font-size:34px;_x000D_
}_x000D_
}_x000D_
/* Large Devices, Wide Screens */_x000D_
@media only screen and (min-width : 1200px) {_x000D_
body {_x000D_
background-color: black;_x000D_
font-size:42px;_x000D_
}_x000D_
}_x000D_
</style>_x000D_
</head>_x000D_
<body>_x000D_
<p>Resize the browser window. When the width of this document is larger than the height, the background-color is "lightblue", otherwise it is "lightgreen".</p>_x000D_
</body>_x000D_
</html>
_x000D_
All credits to @Martijn Pieters in the comments:
You can use the function last_insert_rowid()
:
The
last_insert_rowid()
function returns theROWID
of the last row insert from the database connection which invoked the function. Thelast_insert_rowid()
SQL function is a wrapper around thesqlite3_last_insert_rowid()
C/C++ interface function.
Do you have variables that are associated with these print statements been output? if so, I have found that if the variable has no value then the print statement will not be ouput.
The .NET garbage collector takes care of all this for you.
It is able to determine when objects are no longer referenced and will (eventually) free the memory that had been allocated to them.
/\d+\.?\d*/
One or more digits (\d+
), optional period (\.?
), zero or more digits (\d*
).
Depending on your usage or regex engine you may need to add start/end line anchors:
/^\d+\.?\d*$/
Quick fix:
position: relative;
top: -12px;
left: -2px;
this should balance out those offsets, but maybe you should take a look at your whole layout and see how that box interacts with other boxes.
As for terminology, left
, right
, top
and bottom
are CSS offset properties. They are used for positioning elements at a specific location (when used with absolute
or fixed
positioning), or to move them relative to their default location (when used with relative
positioning). Margins on the other hand specify gaps between boxes and they sometimes collapse, so they can't be reliably used as offsets.
But note that in your case that offset may not be computed (solely) from CSS offsets.
getting username in MAC terminal is easy...
I generally use whoami
in terminal...
For example, in this case, I needed that to install Tomcat Server...
In my case addInterceptor()
didn't work to add HTTP headers to my request, I had to use addNetworkInterceptor()
. Code is as follows:
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.addNetworkInterceptor(new AddHeaderInterceptor());
And the interceptor code:
public class AddHeaderInterceptor implements Interceptor {
@Override
public Response intercept(Chain chain) throws IOException {
Request.Builder builder = chain.request().newBuilder();
builder.addHeader("Authorization", "MyauthHeaderContent");
return chain.proceed(builder.build());
}
}
This and more examples on this gist
Actually, the trick is that the command prompt actually understands these non-english characters, just can't display them correctly.
When I enter a path in the command prompt that contains some non-english chracters it is displayed as "?? ?????? ?????". When you submit your command (cd "??? ?????? ?????" in my case), everything is working as expected.
Instead of any Array
you can load your data in DataTable
like:
using System.Data;
DataTable dt = new DataTable();
using (var con = new SqlConnection("Data Source=local;Initial Catalog=Test;Integrated Security=True"))
{
using (var command = new SqlCommand("SELECT col1,col2" +
{
con.Open();
using (SqlDataReader dr = command.ExecuteReader())
{
dt.Load(dr);
}
}
}
You can also use SqlDataAdapater
to fill your DataTable like
SqlDataAdapter da = new SqlDataAdapter(command);
da.Fill(dt);
Later you can iterate each row and compare like:
foreach (DataRow dr in dt.Rows)
{
if (dr.Field<string>("col1") == "yourvalue") //your condition
{
}
}
Ahmet's answer provides on how to assign the comma separated values to String array.
To use the above configuration in different classes you might need to create getters/setters for this.. But if you would like to load this configuration once and keep using this as a bean with Autowired annotation, here is the how I accomplished:
In ConfigProvider.java
@Bean (name = "ignoreFileNames")
@ConfigurationProperties ( prefix = "ignore.filenames" )
public List<String> ignoreFileNames(){
return new ArrayList<String>();
}
In outside classes:
@Autowired
@Qualifier("ignoreFileNames")
private List<String> ignoreFileNames;
you can use the same list everywhere else by autowiring.
//you can use the ? operator instead of if
ddlCustomerNumber.SelectedValue = ddlType.Items.FindByValue(GetCustomerNumberCookie().ToString()) != null ? GetCustomerNumberCookie().ToString() : "0";
First you have to add an ArrayList to the Map
ArrayList<Item> al = new ArrayList<Item>();
Items.add("theKey", al);
then you can add an item to the ArrayLIst that is inside the Map like this:
Items.get("theKey").add(item); // item is an object of type Item
better use quoted `data`
and `date`
. AFAIR these may be reserved words
my version is:
INSERT INTO `table` ( `data` , `date` ) VALUES('".$date."',NOW()+INTERVAL 1 DAY);
From jquery.validate.js (by joern), contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/
/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i
Make sure to double up the @@ if you are using MVC Razor:
/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i
Hungry for spaghetti?
Instead of using standard installation for android studio,i use custom installation and it's worked for me!!.
Make sure you wrap the condition in the correct precedence
ng-disabled="((!product.img) || (!product.name))"
To answer to your second question. You can just hit the IP address of the machine that your flask app is running, e.g. 192.168.1.100
in a browser on different machine on the same network and you are there. Though, you will not be able to access it if you are on a different network. Firewalls or VLans can cause you problems with reaching your application.
If that computer has a public IP, then you can hit that IP from anywhere on the planet and you will be able to reach the app. Usually this might impose some configuration, since most of the public servers are behind some sort of router or firewall.
To my knowledge, there is sadly no CSS filter to colorise an element (perhaps with the use of some SVG filter magic, but I'm somewhat unfamiliar with that) and even if that wasn't the case, filters are basically only supported by webkit browsers.
With that said, you could still work around this and use a canvas
to modify your image. Basically, you can draw an image element onto a canvas and then loop through the pixels, modifying the respective RGBA values to the colour you want.
However, canvases do come with some restrictions. Most importantly, you have to make sure that the image src comes from the same domain as the page. Otherwise the browser won't allow you to read or modify the pixel data of the canvas.
Here's a JSFiddle changing the colour of the JSFiddle logo.
//Base64 source, but any local source will work_x000D_
var src = "data:image/png;base64,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";_x000D_
var canvas = document.getElementById("theCanvas");_x000D_
var ctx = canvas.getContext("2d");_x000D_
var img = new Image;_x000D_
_x000D_
//wait for the image to load_x000D_
img.onload = function() {_x000D_
//Draw the original image so that you can fetch the colour data_x000D_
ctx.drawImage(img,0,0);_x000D_
var imgData = ctx.getImageData(0, 0, canvas.width, canvas.height);_x000D_
_x000D_
/*_x000D_
imgData.data is a one-dimensional array which contains _x000D_
the respective RGBA values for every pixel _x000D_
in the selected region of the context _x000D_
(note i+=4 in the loop)_x000D_
*/_x000D_
_x000D_
for (var i = 0; i < imgData.data.length; i+=4) {_x000D_
imgData.data[i] = 255; //Red, 0-255_x000D_
imgData.data[i+1] = 255; //Green, 0-255_x000D_
imgData.data[i+2] = 255; //Blue, 0-255_x000D_
/* _x000D_
imgData.data[i+3] contains the alpha value_x000D_
which we are going to ignore and leave_x000D_
alone with its original value_x000D_
*/_x000D_
}_x000D_
ctx.clearRect(0, 0, canvas.width, canvas.height); //clear the original image_x000D_
ctx.putImageData(imgData, 0, 0); //paint the new colorised image_x000D_
}_x000D_
_x000D_
//Load the image!_x000D_
img.src = src;
_x000D_
body {_x000D_
background: green;_x000D_
}
_x000D_
<canvas id="theCanvas"></canvas>
_x000D_
This is a solution that I've used in the past. Although the example here is in VB.net - I've used this technique with c and c++. It bypasses all the issues with Process IDs & Process handles, and return codes. Windows is very faithful in releasing the mutex no matter how Process2 is terminated. I hope it is helpful to someone...
**PROCESS1 :-**
Randomize()
mutexname = "myprocess" & Mid(Format(CDbl(Long.MaxValue) * Rnd(), "00000000000000000000"), 1, 16)
hnd = CreateMutex(0, False, mutexname)
' pass this name to Process2
File.WriteAllText("mutexname.txt", mutexname)
<start Process2>
<wait for Process2 to start>
pr = WaitForSingleObject(hnd, 0)
ReleaseMutex(hnd)
If pr = WAIT_OBJECT_0 Then
<Process2 not running>
Else
<Process2 is running>
End If
...
CloseHandle(hnd)
EXIT
**PROCESS2 :-**
mutexname = File.ReadAllText("mutexname.txt")
hnd = OpenMutex(MUTEX_ALL_ACCESS Or SYNCHRONIZE, True, mutexname)
...
ReleaseMutex(hnd)
CloseHandle(hnd)
EXIT
There are two excellent choices:
and
I like NetworkX, but I read good things about igraph as well. I routinely use NetworkX with graphs with 1 million nodes with no problem (it's about double the overhead of a dict of size V + E)
If you want a feature comparison, see this from the Networkx-discuss list
@selectField1 AS bit
@selectField2 AS bit
SELECT
CASE
WHEN @selectField1 THEN Field1
WHEN @selectField2 THEN Field2
ELSE someDefaultField
END
FROM Table
Is this what you're looking for?
Tests
On the Tests
class we will add an @XmlRootElement
annotation. Doing this will let your JAXB implementation know that when a document starts with this element that it should instantiate this class. JAXB is configuration by exception, this means you only need to add annotations where your mapping differs from the default. Since the testData
property differs from the default mapping we will use the @XmlElement
annotation. You may find the following tutorial helpful: http://wiki.eclipse.org/EclipseLink/Examples/MOXy/GettingStarted
package forum11221136;
import javax.xml.bind.annotation.*;
@XmlRootElement
public class Tests {
TestData testData;
@XmlElement(name="test-data")
public TestData getTestData() {
return testData;
}
public void setTestData(TestData testData) {
this.testData = testData;
}
}
TestData
On this class I used the @XmlType
annotation to specify the order in which the elements should be ordered in. I added a testData
property that appeared to be missing. I also used an @XmlElement
annotation for the same reason as in the Tests
class.
package forum11221136;
import java.util.List;
import javax.xml.bind.annotation.*;
@XmlType(propOrder={"title", "book", "count", "testData"})
public class TestData {
String title;
String book;
String count;
List<TestData> testData;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getBook() {
return book;
}
public void setBook(String book) {
this.book = book;
}
public String getCount() {
return count;
}
public void setCount(String count) {
this.count = count;
}
@XmlElement(name="test-data")
public List<TestData> getTestData() {
return testData;
}
public void setTestData(List<TestData> testData) {
this.testData = testData;
}
}
Demo
Below is an example of how to use the JAXB APIs to read (unmarshal) the XML and populate your domain model and then write (marshal) the result back to XML.
package forum11221136;
import java.io.File;
import javax.xml.bind.*;
public class Demo {
public static void main(String[] args) throws Exception {
JAXBContext jc = JAXBContext.newInstance(Tests.class);
Unmarshaller unmarshaller = jc.createUnmarshaller();
File xml = new File("src/forum11221136/input.xml");
Tests tests = (Tests) unmarshaller.unmarshal(xml);
Marshaller marshaller = jc.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(tests, System.out);
}
}
Application.Wait Second(Now) + 1
Listview lv = (ListView) findViewById(R.id.previewlist);
final BaseAdapter adapter = new PreviewAdapter(this, name, age);
confirm.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
View view = null;
String value;
for (int i = 0; i < adapter.getCount(); i++) {
view = adapter.getView(i, view, lv);
Textview et = (TextView) view.findViewById(R.id.passfare);
value=et.getText().toString();
Toast.makeText(getApplicationContext(), value,
Toast.LENGTH_SHORT).show();
}
}
});
My favorite way is called do the sleep to 50. here i
variable need to be used inside echo statements.
for i in $(seq 1 50); do
echo -ne "$i%\033[0K\r"
sleep 50
done
echo "ended"
You don't need to use
adb shell getevent -l
command, you just need to enable in Developer Options on the device [Show Touch data] to get X and Y.
Some more information can be found in my article here: https://mobileqablog.wordpress.com/2016/08/20/android-automatic-touchscreen-taps-adb-shell-input-touchscreen-tap/
If you are a linux user Update node to a later version by running
sudo apt update
sudo apt install build-essential checkinstall libssl-dev
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.35.1/install.sh | bash
nvm --version
nvm ls
nvm ls-remote
nvm install [version.number]
this should solve your problem
You need to use dynamic SQL to achieve this; something like:
DECLARE
TYPE cur_type IS REF CURSOR;
CURSOR client_cur IS
SELECT DISTING username
FROM all_users
WHERE length(username) = 3;
emails_cur cur_type;
l_cur_string VARCHAR2(128);
l_email_id <type>;
l_name <type>;
BEGIN
FOR client IN client_cur LOOP
dbms_output.put_line('Client is '|| client.username);
l_cur_string := 'SELECT id, name FROM '
|| client.username || '.org';
OPEN emails_cur FOR l_cur_string;
LOOP
FETCH emails_cur INTO l_email_id, l_name;
EXIT WHEN emails_cur%NOTFOUND;
dbms_output.put_line('Org id is ' || l_email_id
|| ' org name ' || l_name);
END LOOP;
CLOSE emails_cur;
END LOOP;
END;
/
Edited to correct two errors, and to add links to 10g documentation for OPEN-FOR
and an example.
Edited to make the inner cursor query a string variable.
Because some database can throw an exception at dbContextTransaction.Commit() so better this:
using (var context = new BloggingContext())
{
using (var dbContextTransaction = context.Database.BeginTransaction())
{
try
{
context.Database.ExecuteSqlCommand(
@"UPDATE Blogs SET Rating = 5" +
" WHERE Name LIKE '%Entity Framework%'"
);
var query = context.Posts.Where(p => p.Blog.Rating >= 5);
foreach (var post in query)
{
post.Title += "[Cool Blog]";
}
context.SaveChanges(false);
dbContextTransaction.Commit();
context.AcceptAllChanges();
}
catch (Exception)
{
dbContextTransaction.Rollback();
}
}
}
If you want to use the upstream version:
rm -rf <submodule dir>
git submodule init
git submodule update
A binary search tree is a special kind of binary tree which exhibits the following property: for any node n, every descendant node's value in the left subtree of n is less than the value of n, and every descendant node's value in the right subtree is greater than the value of n.
If you want to build Java EE applications, it's best to use Eclipse IDE for Java EE. It has editors from HTML to JSP/JSF, Javascript. It's rich for webapps development, and provide plugins and tools to develop Java EE applications easily (all bundled).
Eclipse Classic is basically the full featured Eclipse without the Java EE part.
Try This is[\s\S]*sentence
, works in javascript
If you don't need to pass any arguments an easy workaround is to use valueForKeyPath
. This is even possible on a Class
object.
NSString *colorName = @"brightPinkColor";
id uicolor = [UIColor class];
if ([uicolor respondsToSelector:NSSelectorFromString(colorName)]){
UIColor *brightPink = [uicolor valueForKeyPath:colorName];
...
}
tail -f /path/to/glassfish/domains/YOURDOMAIN/logs/server.log
You can also upload log from admin console : http://yoururl:4848
I think it is far more better and modern solution to just use localStorage on the page where the javascript is included and then just re-use it inside the javascript itself. Set it in localStorage with:
localStorage.setItem("nameOfVariable", "some text value");
and refer to it inside javascript file like:
localStorage.getItem("nameOfVariable");
reload
hacksWithout seeing the source it's difficult to know the root cause, so I'll have to speak generally.
UnicodeDecodeError: 'ascii' codec can't decode byte
generally happens when you try to convert a Python 2.x str
that contains non-ASCII to a Unicode string without specifying the encoding of the original string.
In brief, Unicode strings are an entirely separate type of Python string that does not contain any encoding. They only hold Unicode point codes and therefore can hold any Unicode point from across the entire spectrum. Strings contain encoded text, beit UTF-8, UTF-16, ISO-8895-1, GBK, Big5 etc. Strings are decoded to Unicode and Unicodes are encoded to strings. Files and text data are always transferred in encoded strings.
The Markdown module authors probably use unicode()
(where the exception is thrown) as a quality gate to the rest of the code - it will convert ASCII or re-wrap existing Unicodes strings to a new Unicode string. The Markdown authors can't know the encoding of the incoming string so will rely on you to decode strings to Unicode strings before passing to Markdown.
Unicode strings can be declared in your code using the u
prefix to strings. E.g.
>>> my_u = u'my ünicôdé string'
>>> type(my_u)
<type 'unicode'>
Unicode strings may also come from file, databases and network modules. When this happens, you don't need to worry about the encoding.
Conversion from str
to Unicode can happen even when you don't explicitly call unicode()
.
The following scenarios cause UnicodeDecodeError
exceptions:
# Explicit conversion without encoding
unicode('€')
# New style format string into Unicode string
# Python will try to convert value string to Unicode first
u"The currency is: {}".format('€')
# Old style format string into Unicode string
# Python will try to convert value string to Unicode first
u'The currency is: %s' % '€'
# Append string to Unicode
# Python will try to convert string to Unicode first
u'The currency is: ' + '€'
In the following diagram, you can see how the word café
has been encoded in either "UTF-8" or "Cp1252" encoding depending on the terminal type. In both examples, caf
is just regular ascii. In UTF-8, é
is encoded using two bytes. In "Cp1252", é is 0xE9 (which is also happens to be the Unicode point value (it's no coincidence)). The correct decode()
is invoked and conversion to a Python Unicode is successfull:
In this diagram, decode()
is called with ascii
(which is the same as calling unicode()
without an encoding given). As ASCII can't contain bytes greater than 0x7F
, this will throw a UnicodeDecodeError
exception:
It's good practice to form a Unicode sandwich in your code, where you decode all incoming data to Unicode strings, work with Unicodes, then encode to str
s on the way out. This saves you from worrying about the encoding of strings in the middle of your code.
If you need to bake non-ASCII into your source code, just create Unicode strings by prefixing the string with a u
. E.g.
u'Zürich'
To allow Python to decode your source code, you will need to add an encoding header to match the actual encoding of your file. For example, if your file was encoded as 'UTF-8', you would use:
# encoding: utf-8
This is only necessary when you have non-ASCII in your source code.
Usually non-ASCII data is received from a file. The io
module provides a TextWrapper that decodes your file on the fly, using a given encoding
. You must use the correct encoding for the file - it can't be easily guessed. For example, for a UTF-8 file:
import io
with io.open("my_utf8_file.txt", "r", encoding="utf-8") as my_file:
my_unicode_string = my_file.read()
my_unicode_string
would then be suitable for passing to Markdown. If a UnicodeDecodeError
from the read()
line, then you've probably used the wrong encoding value.
The Python 2.7 CSV module does not support non-ASCII characters . Help is at hand, however, with https://pypi.python.org/pypi/backports.csv.
Use it like above but pass the opened file to it:
from backports import csv
import io
with io.open("my_utf8_file.txt", "r", encoding="utf-8") as my_file:
for row in csv.reader(my_file):
yield row
Most Python database drivers can return data in Unicode, but usually require a little configuration. Always use Unicode strings for SQL queries.
MySQLIn the connection string add:
charset='utf8',
use_unicode=True
E.g.
>>> db = MySQLdb.connect(host="localhost", user='root', passwd='passwd', db='sandbox', use_unicode=True, charset="utf8")
PostgreSQL
Add:
psycopg2.extensions.register_type(psycopg2.extensions.UNICODE)
psycopg2.extensions.register_type(psycopg2.extensions.UNICODEARRAY)
Web pages can be encoded in just about any encoding. The Content-type
header should contain a charset
field to hint at the encoding. The content can then be decoded manually against this value. Alternatively, Python-Requests returns Unicodes in response.text
.
If you must decode strings manually, you can simply do my_string.decode(encoding)
, where encoding
is the appropriate encoding. Python 2.x supported codecs are given here: Standard Encodings. Again, if you get UnicodeDecodeError
then you've probably got the wrong encoding.
Work with Unicodes as you would normal strs.
print
writes through the stdout stream. Python tries to configure an encoder on stdout so that Unicodes are encoded to the console's encoding. For example, if a Linux shell's locale
is en_GB.UTF-8
, the output will be encoded to UTF-8
. On Windows, you will be limited to an 8bit code page.
An incorrectly configured console, such as corrupt locale, can lead to unexpected print errors. PYTHONIOENCODING
environment variable can force the encoding for stdout.
Just like input, io.open
can be used to transparently convert Unicodes to encoded byte strings.
The same configuration for reading will allow Unicodes to be written directly.
Python 3 is no more Unicode capable than Python 2.x is, however it is slightly less confused on the topic. E.g the regular str
is now a Unicode string and the old str
is now bytes
.
The default encoding is UTF-8, so if you .decode()
a byte string without giving an encoding, Python 3 uses UTF-8 encoding. This probably fixes 50% of people's Unicode problems.
Further, open()
operates in text mode by default, so returns decoded str
(Unicode ones). The encoding is derived from your locale, which tends to be UTF-8 on Un*x systems or an 8-bit code page, such as windows-1251, on Windows boxes.
sys.setdefaultencoding('utf8')
It's a nasty hack (there's a reason you have to use reload
) that will only mask problems and hinder your migration to Python 3.x. Understand the problem, fix the root cause and enjoy Unicode zen.
See Why should we NOT use sys.setdefaultencoding("utf-8") in a py script? for further details
You're right using div.container-fluid
and you also need a div.row
child. Then, the content must be placed inside without any grid columns.
If you have a look at the docs you can find this text:
- Rows must be placed within a .container (fixed-width) or .container-fluid (full-width) for proper alignment and padding.
- Use rows to create horizontal groups of columns.
Not using grid columns it's ok as stated here:
- Content should be placed within columns, and only columns may be immediate children of rows.
And looking at this example, you can read this text:
Full width, single column: No grid classes are necessary for full-width elements.
Here's a live example showing some elements using the correct layout. This way you don't need any custom CSS or hack.
(Using Python's terminology.)
To say Ruby uses "pass by value" or "pass by reference" isn't really descriptive enough to be helpful. I think as most people know it these days, that terminology ("value" vs "reference") comes from C++.
In C++, "pass by value" means the function gets a copy of the variable and any changes to the copy don't change the original. That's true for objects too. If you pass an object variable by value then the whole object (including all of its members) get copied and any changes to the members don't change those members on the original object. (It's different if you pass a pointer by value but Ruby doesn't have pointers anyway, AFAIK.)
class A {
public:
int x;
};
void inc(A arg) {
arg.x++;
printf("in inc: %d\n", arg.x); // => 6
}
void inc(A* arg) {
arg->x++;
printf("in inc: %d\n", arg->x); // => 1
}
int main() {
A a;
a.x = 5;
inc(a);
printf("in main: %d\n", a.x); // => 5
A* b = new A;
b->x = 0;
inc(b);
printf("in main: %d\n", b->x); // => 1
return 0;
}
Output:
in inc: 6
in main: 5
in inc: 1
in main: 1
In C++, "pass by reference" means the function gets access to the original variable. It can assign a whole new literal integer and the original variable will then have that value too.
void replace(A &arg) {
A newA;
newA.x = 10;
arg = newA;
printf("in replace: %d\n", arg.x);
}
int main() {
A a;
a.x = 5;
replace(a);
printf("in main: %d\n", a.x);
return 0;
}
Output:
in replace: 10
in main: 10
Ruby uses pass by value (in the C++ sense) if the argument is not an object. But in Ruby everything is an object, so there really is no pass by value in the C++ sense in Ruby.
In Ruby, "pass by object reference" (to use Python's terminology) is used:
Therefore Ruby does not use "pass by reference" in the C++ sense. If it did, then assigning a new object to a variable inside a function would cause the old object to be forgotten after the function returned.
class A
attr_accessor :x
end
def inc(arg)
arg.x += 1
puts arg.x
end
def replace(arg)
arg = A.new
arg.x = 3
puts arg.x
end
a = A.new
a.x = 1
puts a.x # 1
inc a # 2
puts a.x # 2
replace a # 3
puts a.x # 2
puts ''
def inc_var(arg)
arg += 1
puts arg
end
b = 1 # Even integers are objects in Ruby
puts b # 1
inc_var b # 2
puts b # 1
Output:
1
2
2
3
2
1
2
1
* This is why, in Ruby, if you want to modify an object inside a function but forget those changes when the function returns, then you must explicitly make a copy of the object before making your temporary changes to the copy.
$("#personal").click(function() {
if ($(this).is(":checked")) {
alert('Personal');
/* var validator = $("#register_france").validate();
validator.resetForm(); */
}
}
);
Use the change event of the select:
$('#my_select').change(function()
{
$(this).parents('td').css('background', '#000000');
});
STACK is a LIFO (last in, first out) list. means suppose 3 elements are inserted in stack i.e 10,20,30. 10 is inserted first & 30 is inserted last so 30 is first deleted from stack & 10 is last deleted from stack.this is an LIFO list(Last In First Out).
QUEUE is FIFO list(First In First Out).means one element is inserted first which is to be deleted first.e.g queue of peoples.
I will expand on the earlier answer about np.fliplr()
. Here is some code that demonstrates constructing a 1d array, transforming it into a 2d array, flipping it, then converting back into a 1d array. time.clock()
will be used to keep time, which is presented in terms of seconds.
import time
import numpy as np
start = time.clock()
x = np.array(range(3))
#transform to 2d
x = np.atleast_2d(x)
#flip array
x = np.fliplr(x)
#take first (and only) element
x = x[0]
#print x
end = time.clock()
print end-start
With print statement uncommented:
[2 1 0]
0.00203907123594
With print statement commented out:
5.59799927506e-05
So, in terms of efficiency, I think that's decent. For those of you that love to do it in one line, here is that form.
np.fliplr(np.atleast_2d(np.array(range(3))))[0]
Press Ctrl + Alt + S then choose Keymap
and finally find the keyboard shortcut by type back
word in search bar at the top right corner.
An array isn't immutable by nature; you can't make it constant.
The nearest you can get is:
var letter_goodness = [...]float32 {.0817, .0149, .0278, .0425, .1270, .0223, .0202, .0609, .0697, .0015, .0077, .0402, .0241, .0675, .0751, .0193, .0009, .0599, .0633, .0906, .0276, .0098, .0236, .0015, .0197, .0007 }
Note the [...]
instead of []
: it ensures you get a (fixed size) array instead of a slice. So the values aren't fixed but the size is.
As an update, when doing
brew unlink python # If you have installed (with brew) another version of python
brew install https://raw.githubusercontent.com/Homebrew/homebrew-core/f2a764ef944b1080be64bd88dca9a1d80130c558/Formula/python.rb
You may encounter
Error: python contains a recursive dependency on itself:
python depends on sphinx-doc
sphinx-doc depends on python
To bypass it, add the --ignore-dependencies
argument to brew install.
brew unlink python # If you have installed (with brew) another version of python
brew install --ignore-dependencies https://raw.githubusercontent.com/Homebrew/homebrew-core/f2a764ef944b1080be64bd88dca9a1d80130c558/Formula/python.rb
Angular 4 empty data if else
if(this.data == 0)
{
alert("Null data");
}
else
{
//some logic
}
Moreover to convert whatever you want, you can use QVariant
.
For an int
to a QString
you get:
QVariant(3).toString();
A float
to a string
or a string
to a float
:
QVariant(3.2).toString();
QVariant("5.2").toFloat();
You need to to create a new migration file using following command
rails generate migration drop_table_xyz
and write drop_table code in newly generated migration file (db/migration/xxxxxxx_drop_table_xyz) like
drop_table :tablename
Or if you wanted to drop table without migration, simply open rails console by
$ rails c
and execute following command
ActiveRecord::Base.connection.execute("drop table table_name")
or you can use more simplified command
ActiveRecord::Migration.drop_table(:table_name)
I had the same problem with Apache and PHP 5.5.
In php.ini
, I had the following lines:
error_reporting E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT
display_errors Off
instead of the following:
error_reporting=E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT
display_errors=Off
(the =
sign was missing)
Collection is the main interface of Java Collections hierarchy and List(Sequence) is one of the sub interfaces that defines an ordered collection.
I have the same problem and I just used cin.getline(input,300);
.
noskipws
and cin.get()
sometimes are not easy to use. Since you have the right size of your array try using cin.getline()
which does not care about any character and read the whole line in specified character count.
This question is pretty old but I'll add the solution I found the be the simplest at present.
library(reshape2)
before = data.frame(attr = c(1,30,4,6), type=c('foo_and_bar','foo_and_bar_2'))
newColNames <- c("type1", "type2")
newCols <- colsplit(before$type, "_and_", newColNames)
after <- cbind(before, newCols)
after$type <- NULL
after
This is how I solved the issue on my computer:
I find another way of doing the same thing by using @PathParam
. Here is the code sample.
@GET
@Path("data/xml/{Ids}")
@Produces("application/xml")
public Object getData(@PathParam("zrssIds") String Ids)
{
System.out.println("zrssIds = " + Ids);
//Here you need to use String tokenizer to make the array from the string.
}
Call the service by using following url.
http://localhost:8080/MyServices/resources/cm/data/xml/12,13,56,76
where
http://localhost:8080/[War File Name]/[Servlet Mapping]/[Class Path]/data/xml/12,13,56,76
The problem is that solutions that work on regular angular select boxes do not work with Angular Material md-select and md-option using protractor. This one was posted by another, but it worked for me and I am unable to comment on his post yet (only 23 rep points). Also, I cleaned it up a bit, instead of browser.sleep, I used browser.waitForAngular();
element.all(by.css('md-select')).each(function (eachElement, index) {
eachElement.click(); // select the <select>
browser.waitForAngular(); // wait for the renderings to take effect
element(by.css('md-option')).click(); // select the first md-option
browser.waitForAngular(); // wait for the renderings to take effect
});
querySelectorAll
function and split the values
string.Array#forEach
to iterate over every element from the values
array.Array#find
to find the option matching given value.selected
attribute to true
.Note: Array#from
transforms an array-like object into an array and then you are able to use Array.prototype
functions on it, like find or map.
var values = "Test,Prof,Off",_x000D_
options = Array.from(document.querySelectorAll('#strings option'));_x000D_
_x000D_
values.split(',').forEach(function(v) {_x000D_
options.find(c => c.value == v).selected = true;_x000D_
});
_x000D_
<select name='strings' id="strings" multiple style="width:100px;">_x000D_
<option value="Test">Test</option>_x000D_
<option value="Prof">Prof</option>_x000D_
<option value="Live">Live</option>_x000D_
<option value="Off">Off</option>_x000D_
<option value="On">On</option>_x000D_
</select>
_x000D_
-eq
is a mathematical comparison operator. I've never used it for string comparison, relying on ==
and !=
for compares.
if [ 'XYZ' == 'ABC' ]; then # Double equal to will work in Linux but not on HPUX boxes it should be if [ 'XYZ' = 'ABC' ] which will work on both
echo "Match"
else
echo "No Match"
fi
You should use the current sys
catalog views (if you're on SQL Server 2005 or newer - the sysobjects
views are deprecated and should be avoided) - check out the extensive MSDN SQL Server Books Online documentation on catalog views here.
There are quite a few views you might be interested in:
sys.default_constraints
for default constraints on columnssys.check_constraints
for check constraints on columnssys.key_constraints
for key constraints (e.g. primary keys)sys.foreign_keys
for foreign key relationsand a lot more - check it out!
You can query and join those views to get the info needed - e.g. this will list the tables, columns and all default constraints defined on them:
SELECT
TableName = t.Name,
ColumnName = c.Name,
dc.Name,
dc.definition
FROM sys.tables t
INNER JOIN sys.default_constraints dc ON t.object_id = dc.parent_object_id
INNER JOIN sys.columns c ON dc.parent_object_id = c.object_id AND c.column_id = dc.parent_column_id
ORDER BY t.Name
With JQuery this stuff is pretty easy to do. Since you can bind to sets.
Its NOT enough to do the onbeforeunload, you want to only trigger the navigate away if someone started editing stuff.
#include <stdio.h>
#include <string.h>
char isNumber(char *text)
{
int j;
j = strlen(text);
while(j--)
{
if(text[j] > 47 && text[j] < 58)
continue;
return 0;
}
return 1;
}
int main(){
char tmp[16];
scanf("%s", tmp);
if(isNumber(tmp))
return printf("is a number\n");
return printf("is not a number\n");
}
You can also check its stringfied value, which could also work with non Ascii
char isNumber(char *text)
{
int j;
j = strlen(text);
while(j--)
{
if(text[j] >= '0' && text[j] <= '9')
continue;
return 0;
}
return 1;
}
Here is example with above methods:
<div class="ui-field-contain">
<fieldset data-role="controlgroup" data-type="horizontal"> <legend>Choose a pet:</legend>
<input type="radio" name="radio-choice-2" id="radio-choice-1" value="choice1">
<label for="radio-choice-1">Cat</label>
<input type="radio" name="radio-choice-2" id="radio-choice-2" value="choice2">
<label for="radio-choice-2">Dog</label>
<input type="radio" name="radio-choice-2" id="radio-choice-3" value="choice3">
<label for="radio-choice-3">Hamster</label>
<input type="radio" name="radio-choice-2" id="radio-choice-4" value="choice4">
<label for="radio-choice-4">Lizard</label>
</fieldset>
</div>
In javascript:
$("[name = 'radio-choice-2'][value='choice3']").prop('checked', true).checkboxradio('refresh');
Span does not have 'change' event by default. But you can add this event manually.
Listen to the change event of span.
$("#span1").on('change',function(){
//Do calculation and change value of other span2,span3 here
$("#span2").text('calculated value');
});
And wherever you change the text in span1. Trigger the change event manually.
$("#span1").text('test').trigger('change');
Or try pure ES6 nonlodash method like this
const reducer = (array, object) => {
array.push(object.a)
return array
}
var objects = [{ 'a': 1 }, { 'a': 2 }];
objects.reduce(reducer, [])
In very short
Encapsulation:– Information hiding
Abstraction :– Implementation hiding
Abstraction
lets you focus on what the object does
while Encapsulation means how an object works
As James Selvakumar already said, grep -a
does the trick. -a or --text forces Grep to handle the inputstream as text.
See Manpage http://unixhelp.ed.ac.uk/CGI/man-cgi?grep
try
cat test.log | grep -a somestring
It bugged me too to find a solution to mimic interfaces with the lower impacts possible.
One solution could be to make a tool :
/**
@parameter {Array|object} required : method name list or members types by their name
@constructor
*/
let Interface=function(required){
this.obj=0;
if(required instanceof Array){
this.obj={};
required.forEach(r=>this.obj[r]='function');
}else if(typeof(required)==='object'){
this.obj=required;
}else {
throw('Interface invalid parameter required = '+required);
}
};
/** check constructor instance
@parameter {object} scope : instance to check.
@parameter {boolean} [strict] : if true -> throw an error if errors ar found.
@constructor
*/
Interface.prototype.check=function(scope,strict){
let err=[],type,res={};
for(let k in this.obj){
type=typeof(scope[k]);
if(type!==this.obj[k]){
err.push({
key:k,
type:this.obj[k],
inputType:type,
msg:type==='undefined'?'missing element':'bad element type "'+type+'"'
});
}
}
res.success=!err.length;
if(err.length){
res.msg='Class bad structure :';
res.errors=err;
if(strict){
let stk = new Error().stack.split('\n');
stk.shift();
throw(['',res.msg,
res.errors.map(e=>'- {'+e.type+'} '+e.key+' : '+e.msg).join('\n'),
'','at :\n\t'+stk.join('\n\t')
].join('\n'));
}
}
return res;
};
Exemple of use :
// create interface tool
let dataInterface=new Interface(['toData','fromData']);
// abstract constructor
let AbstractData=function(){
dataInterface.check(this,1);// check extended element
};
// extended constructor
let DataXY=function(){
AbstractData.apply(this,[]);
this.xy=[0,0];
};
DataXY.prototype.toData=function(){
return [this.xy[0],this.xy[1]];
};
// should throw an error because 'fromData' is missing
let dx=new DataXY();
With classes
class AbstractData{
constructor(){
dataInterface.check(this,1);
}
}
class DataXY extends AbstractData{
constructor(){
super();
this.xy=[0,0];
}
toData(){
return [this.xy[0],this.xy[1]];
}
}
It's still a bit performance consumming and require dependancy to the Interface class, but can be of use for debug or open api.
This is the right way to clear this error.
export ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1 sqlplus / as sysdba
From strdup man:
The strdup()
function shall return a pointer to a new string, which is a duplicate of the string pointed to by s1
. The returned pointer can be passed to free()
. A null pointer is returned if the new string cannot be created.
As others explained, the toString
is not the place to be instantiating your class. Instead, the toString
method is intended to build a string representing the value of an instance of your class, reporting on at least the most important fields of data stored in that object. In most cases, toString
is used for debugging and logging, not for your business logic.
To generate text representing the value of an object for display to a user, add another method. People often name the method something like getDisplayName
. For example, DayOfWeek::getDisplayName
and Month::getDisplayName
.
StringJoiner
As of Java 8 and later, the most modern way to implement toString
would use the StringJoiner
class. As the doc says:
StringJoiner is used to construct a sequence of characters separated by a delimiter and optionally starting with a supplied prefix and ending with a supplied suffix.
Use like this:
@Override
public String toString ()
{
return new StringJoiner( // In Java 8 and later, StringJoiner is used to construct a sequence of characters separated by a delimiter and optionally starting with a supplied prefix and ending with a supplied suffix.
" | " , // Delimiter
Person.class.getSimpleName() + "[ " , // Prefix
" ]" // Suffix
)
.add( "name=" + name ) // Append
.add( "phone=" + phone ) // Append
.toString(); // Convert entire sequence to a single `String` object.
}
Person[ name=Alice | phone=555.867.5309 ]
Check XCode is installed or not.
gcc --version
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew doctor
brew update
http://techsharehub.blogspot.com/2013/08/brew-command-not-found.html "click here for exact instruction updates"
Why not just use the $_POST['submit']
variable as a logical statement in order to save whatever is in the form. You can always redirect to the same page (In case they refresh, and when they hit go back
in the browser, the submit post variable wouldn't be set anymore. Just make sure your submit button has a name
and id
of submit
.
In woocommerce,
Get regular price :
$price = get_post_meta( get_the_ID(), '_regular_price', true);
// $price will return regular price
Get sale price:
$sale = get_post_meta( get_the_ID(), '_sale_price', true);
// $sale will return sale price
For me, it was... the AntiVirus! Kaspersky Endpoint security 10. It seems that the frequent compilations and the changing of the exe, caused it to block the file.
Answers = Answers.GroupBy(a => a.id).Select(x => x.First());
This will select each unique object by email
TEXT
c
bytes of disk space, where c
is the length of the stored string.VARCHAR(M)
M
charactersM
needs to be between 1 and 65535c
bytes (for M
≤ 255) or 2 + c
(for 256 ≤ M
≤ 65535) bytes of disk space where c
is the length of the stored stringTEXT
has a fixed max size of 2¹6-1 = 65535
characters.
VARCHAR
has a variable max size M
up to M = 2¹6-1
.
So you cannot choose the size of TEXT
but you can for a VARCHAR
.
The other difference is, that you cannot put an index (except for a fulltext index) on a TEXT
column.
So if you want to have an index on the column, you have to use VARCHAR
. But notice that the length of an index is also limited, so if your VARCHAR
column is too long you have to use only the first few characters of the VARCHAR
column in your index (See the documentation for CREATE INDEX
).
But you also want to use VARCHAR
, if you know that the maximum length of the possible input string is only M
, e.g. a phone number or a name or something like this. Then you can use VARCHAR(30)
instead of TINYTEXT
or TEXT
and if someone tries to save the text of all three "Lord of the Ring" books in your phone number column you only store the first 30 characters :)
Edit: If the text you want to store in the database is longer than 65535 characters, you have to choose MEDIUMTEXT
or LONGTEXT
, but be careful: MEDIUMTEXT
stores strings up to 16 MB, LONGTEXT
up to 4 GB. If you use LONGTEXT
and get the data via PHP (at least if you use mysqli
without store_result
), you maybe get a memory allocation error, because PHP tries to allocate 4 GB of memory to be sure the whole string can be buffered. This maybe also happens in other languages than PHP.
However, you should always check the input (Is it too long? Does it contain strange code?) before storing it in the database.
Notice: For both types, the required disk space depends only on the length of the stored string and not on the maximum length.
E.g. if you use the charset latin1 and store the text "Test" in VARCHAR(30)
, VARCHAR(100)
and TINYTEXT
, it always requires 5 bytes (1 byte to store the length of the string and 1 byte for each character). If you store the same text in a VARCHAR(2000)
or a TEXT
column, it would also require the same space, but, in this case, it would be 6 bytes (2 bytes to store the string length and 1 byte for each character).
For more information have a look at the documentation.
Finally, I want to add a notice, that both, TEXT
and VARCHAR
are variable length data types, and so they most likely minimize the space you need to store the data. But this comes with a trade-off for performance. If you need better performance, you have to use a fixed length type like CHAR
. You can read more about this here.
This is what lambda is for:
def perform(f):
f()
perform(lambda: action1())
perform(lambda: action2(p))
perform(lambda: action3(p, r))
if(!strcmp(favoriteDairyProduct, "cheese"))
{
printf("You like cheese too!");
}
else
{
printf("I like cheese more.");
}
you create the Selector like below.
1.
UIBarButtonItem(
title: "Some Title",
style: UIBarButtonItemStyle.Done,
target: self,
action: "flatButtonPressed"
)
2.
flatButton.addTarget(self, action: "flatButtonPressed:", forControlEvents: UIControlEvents.TouchUpInside)
Take note that the @selector syntax is gone and replaced with a simple String naming the method to call. There’s one area where we can all agree the verbosity got in the way. Of course, if we declared that there is a target method called flatButtonPressed: we better write one:
func flatButtonPressed(sender: AnyObject) {
NSLog("flatButtonPressed")
}
set the timer:
var timer = NSTimer.scheduledTimerWithTimeInterval(1.0,
target: self,
selector: Selector("flatButtonPressed"),
userInfo: userInfo,
repeats: true)
let mainLoop = NSRunLoop.mainRunLoop() //1
mainLoop.addTimer(timer, forMode: NSDefaultRunLoopMode) //2 this two line is optinal
In order to be complete, here’s the flatButtonPressed
func flatButtonPressed(timer: NSTimer) {
}
You can use the following function:
function format(number, decimals = 2, decimalSeparator = '.', thousandsSeparator = ',') {_x000D_
const roundedNumber = number.toFixed(decimals);_x000D_
let integerPart = '',_x000D_
fractionalPart = '';_x000D_
if (decimals == 0) {_x000D_
integerPart = roundedNumber;_x000D_
decimalSeparator = '';_x000D_
} else {_x000D_
let numberParts = roundedNumber.split('.');_x000D_
integerPart = numberParts[0];_x000D_
fractionalPart = numberParts[1];_x000D_
}_x000D_
integerPart = integerPart.replace(/(\d)(?=(\d{3})+(?!\d))/g, `$1${thousandsSeparator}`);_x000D_
return `${integerPart}${decimalSeparator}${fractionalPart}`;_x000D_
}_x000D_
_x000D_
// Use Example_x000D_
_x000D_
let min = 1556454.0001;_x000D_
let max = 15556982.9999;_x000D_
_x000D_
console.time('number format');_x000D_
for (let i = 0; i < 15; i++) {_x000D_
let randomNumber = Math.random() * (max - min) + min;_x000D_
let formated = format(randomNumber, 4, ',', '.'); // formated number_x000D_
_x000D_
console.log('number: ', randomNumber, '; formated: ', formated);_x000D_
}_x000D_
console.timeEnd('number format');
_x000D_
For Swift 3 it's now: IndexPath(row: rowIndex, section: sectionIndex)
You'll need to open the workbook to refer to it.
Sub Setwbk()
Dim wbk As Workbook
Set wbk = Workbooks.Open("F:\Quarterly Reports\2012 Reports\New Reports\ _
Master Benchmark Data Sheet.xlsx")
End Sub
* Follow Doug's answer if the workbook is already open. For the sake of making this answer as complete as possible, I'm including my comment on his answer:
Why do I have to "set" it?
Set
is how VBA assigns object variables. Since a Range
and a Workbook
/Worksheet
are objects, you must use Set
with these.
Since inplace
argument is available, you don't need to copy and assign the original data frame back to itself, but do as follows:
df.rename(columns={'two':'new_name'}, inplace=True)
There is a pure CSS solution I'm currently using.
Add a body ID (or class) identifying your pages and your menu items, then use something like:
HTML:
<html>
<body id="body_questions">
<ul class="menu">
<li id="questions">Question</li>
<li id="tags">Tags</li>
<li id="users">Users</li>
</ul>
...
</body>
</html>
CSS:
.menu li:hover,
#body_questions #questions,
#body_tags #tags,
#body_users #users {
background-color: #f90;
}
For a more simple solution (not sure if the most optimal), you can simply nest Parallel.ForEach
inside a Task
- as such
var options = new ParallelOptions { MaxDegreeOfParallelism = 5 }
Task.Run(() =>
{
Parallel.ForEach(myCollection, options, item =>
{
DoWork(item);
}
}
The ParallelOptions
will do the throttlering for you, out of the box.
I am using it in a real world scenario to run a very long operations in the background. These operations are called via HTTP and it was designed not to block the HTTP call while the long operation is running.
That way, the CI/CD call does not timeout because of long HTTP operation, rather it loops the status every x seconds without blocking the process
I know this is old question, but future references. In Android Studio with Gradle:
buildTypes {
release {
debuggable true
runProguard true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
The line debuggable true
was the trick for me.
Update:
Since gradle 1.0 it's minifyEnabled
instead of runProguard
. Look at here
I agree with peterh's answer, so for those of you who like to copy and paste instead of 60 more seconds of Googling:
private String getComputerName()
{
Map<String, String> env = System.getenv();
if (env.containsKey("COMPUTERNAME"))
return env.get("COMPUTERNAME");
else if (env.containsKey("HOSTNAME"))
return env.get("HOSTNAME");
else
return "Unknown Computer";
}
I have tested this in Windows 7 and it works. If peterh was right the else if
should take care of Mac and Linux. Maybe someone can test this? You could also implement Brian Roach's answer inside the else
if you wanted extra robustness.
Parenthesis ()
are used to enable grouping of regex phrases.
The group(1)
contains the string that is between parenthesis (.*)
so .*
in this case
And group(0)
contains whole matched string.
If you would have more groups (read (...)
) it would be put into groups with next indexes (2, 3 and so on).
ng --version
Please take a look at the above image.
If you use AIX try this This will attach a text file and include a HTML body If this does not work catch the output in the /var/spool/mqueue
#!/usr/bin/kWh
if (( $# < 1 ))
then
echo "\n\tSyntax: $(basename) MAILTO SUBJECT BODY.html ATTACH.txt "
echo "\tmailzatt"
exit
fi
export MAILTO=${[email protected]}
MAILFROM=$(whoami)
SUBJECT=${2-"mailzatt"}
export BODY=${3-/apps/bin/attch.txt}
export ATTACH=${4-/apps/bin/attch.txt}
export HST=$(hostname)
#export BODY="/wrk/stocksum/report.html"
#export ATTACH="/wrk/stocksum/Report.txt"
#export MAILPART=`uuidgen` ## Generates Unique ID
#export MAILPART_BODY=`uuidgen` ## Generates Unique ID
export MAILPART="==".$(date +%d%S)."===" ## Generates Unique ID
export MAILPART_BODY="==".$(date +%d%Sbody)."===" ## Generates Unique ID
(
echo "To: $MAILTO"
echo "From: mailmate@$HST "
echo "Subject: $SUBJECT"
echo "MIME-Version: 1.0"
echo "Content-Type: multipart/mixed; boundary=\"$MAILPART\""
echo ""
echo "--$MAILPART"
echo "Content-Type: multipart/alternative; boundary=\"$MAILPART_BODY\""
echo ""
echo ""
echo "--$MAILPART_BODY"
echo "Content-Type: text/html"
echo "Content-Disposition: inline"
cat $BODY
echo ""
echo "--$MAILPART_BODY--"
echo ""
echo "--$MAILPART"
echo "Content-Type: text/plain"
echo "Content-Disposition: attachment; filename=\"$(basename $ATTACH)\""
echo ""
cat $ATTACH
echo ""
echo "--${MAILPART}--"
) | /usr/sbin/sendmail -t
You've started right - now you just need to fill the each student
structure in the array:
struct student
{
public int s_id;
public String s_name, c_name, dob;
}
class Program
{
static void Main(string[] args)
{
student[] arr = new student[4];
for(int i = 0; i < 4; i++)
{
Console.WriteLine("Please enter StudentId, StudentName, CourseName, Date-Of-Birth");
arr[i].s_id = Int32.Parse(Console.ReadLine());
arr[i].s_name = Console.ReadLine();
arr[i].c_name = Console.ReadLine();
arr[i].s_dob = Console.ReadLine();
}
}
}
Now, just iterate once again and write these information to the console. I will let you do that, and I will let you try to make program to take any number of students, and not just 4.
You can simply use jQuery UI Dialog
Example:
$(function() {_x000D_
$("#dialog").dialog();_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<html lang="en">_x000D_
_x000D_
<head>_x000D_
<meta charset="utf-8" />_x000D_
<title>jQuery UI Dialog - Default functionality</title>_x000D_
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />_x000D_
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>_x000D_
<link rel="stylesheet" href="/resources/demos/style.css" />_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<div id="dialog" title="Basic dialog">_x000D_
<p>This is the default dialog which is useful for displaying information. The dialog window can be moved, resized and closed with the 'x' icon.</p>_x000D_
</div>_x000D_
</body>_x000D_
</html>
_x000D_
Actually, running EXEC sp_who2
in Query Analyzer / Management Studio gives more info than sp_who
.
Beyond that you could set up SQL Profiler to watch all of the in and out traffic to the server. Profiler also let you narrow down exactly what you are watching for.
For SQL Server 2008:
START - All Programs - Microsoft SQL Server 2008 - Performance Tools - SQL Server Profiler
Keep in mind that the profiler is truly a logging and watching app. It will continue to log and watch as long as it is running. It could fill up text files or databases or hard drives, so be careful what you have it watch and for how long.
I think this is exactly what you were looking for
http://today.java.net/pub/a/today/2007/06/26/generating-pdfs-with-flying-saucer-and-itext.html
http://code.google.com/p/flying-saucer
Flying Saucer's primary purpose is to render spec-compliant XHTML and CSS 2.1 to the screen as a Swing component. Though it was originally intended for embedding markup into desktop applications (things like the iTunes Music Store), Flying Saucer has been extended work with iText as well. This makes it very easy to render XHTML to PDFs, as well as to images and to the screen. Flying Saucer requires Java 1.4 or higher.
It must be here, because accepted answer from 2012
In 2018 and modern browsers you can send a custom event from iframe to parent window.
iframe:
var data = { foo: 'bar' }
var event = new CustomEvent('myCustomEvent', { detail: data })
window.parent.document.dispatchEvent(event)
parent:
window.document.addEventListener('myCustomEvent', handleEvent, false)
function handleEvent(e) {
console.log(e.detail) // outputs: {foo: 'bar'}
}
PS: Of course, you can send events in opposite direction same way.
document.querySelector('#iframe_id').contentDocument.dispatchEvent(event)
Add
export PATH=$PATH:/home/me/play
to your ~/.profile
and execute
source ~/.profile
in order to immediately reflect changes to your current terminal instance.
Use deactivate
.
(my_env) user@user:~/my_env$ deactivate
user@user-Lenovo-E40-80:~/my_env$
Note, (my_env)
is gone.
I elaborated on dream83619 answer to make it handle nested Hibernate @Fetch
annotations. I used recursive method to find annotations in nested associated classes.
So you have to implement custom repository and override getQuery(spec, domainClass, sort)
method.
Unfortunately you also have to copy all referenced private methods :(.
Here is the code, copied private methods are omitted.
EDIT: Added remaining private methods.
@NoRepositoryBean
public class EntityGraphRepositoryImpl<T, ID extends Serializable> extends SimpleJpaRepository<T, ID> {
private final EntityManager em;
protected JpaEntityInformation<T, ?> entityInformation;
public EntityGraphRepositoryImpl(JpaEntityInformation<T, ?> entityInformation, EntityManager entityManager) {
super(entityInformation, entityManager);
this.em = entityManager;
this.entityInformation = entityInformation;
}
@Override
protected <S extends T> TypedQuery<S> getQuery(Specification<S> spec, Class<S> domainClass, Sort sort) {
CriteriaBuilder builder = em.getCriteriaBuilder();
CriteriaQuery<S> query = builder.createQuery(domainClass);
Root<S> root = applySpecificationToCriteria(spec, domainClass, query);
query.select(root);
applyFetchMode(root);
if (sort != null) {
query.orderBy(toOrders(sort, root, builder));
}
return applyRepositoryMethodMetadata(em.createQuery(query));
}
private Map<String, Join<?, ?>> joinCache;
private void applyFetchMode(Root<? extends T> root) {
joinCache = new HashMap<>();
applyFetchMode(root, getDomainClass(), "");
}
private void applyFetchMode(FetchParent<?, ?> root, Class<?> clazz, String path) {
for (Field field : clazz.getDeclaredFields()) {
Fetch fetch = field.getAnnotation(Fetch.class);
if (fetch != null && fetch.value() == FetchMode.JOIN) {
FetchParent<?, ?> descent = root.fetch(field.getName(), JoinType.LEFT);
String fieldPath = path + "." + field.getName();
joinCache.put(path, (Join) descent);
applyFetchMode(descent, field.getType(), fieldPath);
}
}
}
/**
* Applies the given {@link Specification} to the given {@link CriteriaQuery}.
*
* @param spec can be {@literal null}.
* @param domainClass must not be {@literal null}.
* @param query must not be {@literal null}.
* @return
*/
private <S, U extends T> Root<U> applySpecificationToCriteria(Specification<U> spec, Class<U> domainClass,
CriteriaQuery<S> query) {
Assert.notNull(query);
Assert.notNull(domainClass);
Root<U> root = query.from(domainClass);
if (spec == null) {
return root;
}
CriteriaBuilder builder = em.getCriteriaBuilder();
Predicate predicate = spec.toPredicate(root, query, builder);
if (predicate != null) {
query.where(predicate);
}
return root;
}
private <S> TypedQuery<S> applyRepositoryMethodMetadata(TypedQuery<S> query) {
if (getRepositoryMethodMetadata() == null) {
return query;
}
LockModeType type = getRepositoryMethodMetadata().getLockModeType();
TypedQuery<S> toReturn = type == null ? query : query.setLockMode(type);
applyQueryHints(toReturn);
return toReturn;
}
private void applyQueryHints(Query query) {
for (Map.Entry<String, Object> hint : getQueryHints().entrySet()) {
query.setHint(hint.getKey(), hint.getValue());
}
}
public Class<T> getEntityType() {
return entityInformation.getJavaType();
}
public EntityManager getEm() {
return em;
}
}
If it overflows, it goes back to the minimum value and continues from there. If it underflows, it goes back to the maximum value and continues from there.
You can check that beforehand as follows:
public static boolean willAdditionOverflow(int left, int right) {
if (right < 0 && right != Integer.MIN_VALUE) {
return willSubtractionOverflow(left, -right);
} else {
return (~(left ^ right) & (left ^ (left + right))) < 0;
}
}
public static boolean willSubtractionOverflow(int left, int right) {
if (right < 0) {
return willAdditionOverflow(left, -right);
} else {
return ((left ^ right) & (left ^ (left - right))) < 0;
}
}
(you can substitute int
by long
to perform the same checks for long
)
If you think that this may occur more than often, then consider using a datatype or object which can store larger values, e.g. long
or maybe java.math.BigInteger
. The last one doesn't overflow, practically, the available JVM memory is the limit.
If you happen to be on Java8 already, then you can make use of the new Math#addExact()
and Math#subtractExact()
methods which will throw an ArithmeticException
on overflow.
public static boolean willAdditionOverflow(int left, int right) {
try {
Math.addExact(left, right);
return false;
} catch (ArithmeticException e) {
return true;
}
}
public static boolean willSubtractionOverflow(int left, int right) {
try {
Math.subtractExact(left, right);
return false;
} catch (ArithmeticException e) {
return true;
}
}
The source code can be found here and here respectively.
Of course, you could also just use them right away instead of hiding them in a boolean
utility method.
My solution is a combination of @Dzintars and @Quassnoi Answer.
SELECT CONCAT("ALTER TABLE ", TABLE_SCHEMA, '.', TABLE_NAME," CONVERT TO CHARACTER SET utf8mb4 ;") AS ExecuteTheString
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA="<your-database>"
AND TABLE_TYPE="BASE TABLE";
By using CONVERT TO
, this generates a scripts, which converts all the Tables of <your-database>
to your requested encoding. This also changes the encoding of every column!
Nothing evaluates to True
faster than True
. So, it is good if you use while True
instead of while 1==1
etc.
you can use mongo query like this yearMonthDayhms: { $dateToString: { format: "%Y-%m-%d-%H-%M-%S", date: {$subtract:["$cdt",14400000]}}}
HourMinute: { $dateToString: { format: "%H-%M-%S", date: {$subtract:["$cdt",14400000]}}}
you can do this without jQuery:
var form=document.getElementById('form-id');//retrieve the form as a DOM element
var input = document.createElement('input');//prepare a new input DOM element
input.setAttribute('name', inputName);//set the param name
input.setAttribute('value', inputValue);//set the value
input.setAttribute('type', inputType)//set the type, like "hidden" or other
form.appendChild(input);//append the input to the form
form.submit();//send with added input
jQuery.fn.make_me_red = function() {
return this.each(function() {
this.style.color = 'red';
});
};
$('a').make_me_red() // - instead of this you can use $(this).make_me_red() instead for better readability.
Adding a separate answer because it is radically different.
You could use rgba and set the alpha channel low (to get transparency) to make your drop shadow less noticeable.
Try something like this (play with the .5)
-webkit-box-shadow: 0px -4px 7px rbga(230, 230, 230, .5);
-moz-box-shadow: 0px -4px 7px rbga(230, 230, 230, .5);
box-shadow: 0px -4px 7px rbga(230, 230, 230, .5);
Hope this helps!
The best bet with these types of questions is to see exactly what python does. The dis
module is incredibly informative:
>>> import dis
>>> dis.dis("val != None")
1 0 LOAD_NAME 0 (val)
2 LOAD_CONST 0 (None)
4 COMPARE_OP 3 (!=)
6 RETURN_VALUE
>>> dis.dis("not (val is None)")
1 0 LOAD_NAME 0 (val)
2 LOAD_CONST 0 (None)
4 COMPARE_OP 9 (is not)
6 RETURN_VALUE
>>> dis.dis("val is not None")
1 0 LOAD_NAME 0 (val)
2 LOAD_CONST 0 (None)
4 COMPARE_OP 9 (is not)
6 RETURN_VALUE
Notice that the last two cases reduce to the same sequence of operations, Python reads not (val is None)
and uses the is not
operator. The first uses the !=
operator when comparing with None
.
As pointed out by other answers, using !=
when comparing with None
is a bad idea.
A double quote character ("
) can be escaped as "
, but here's the rest of the story...
In XML attributes delimited by double quotes:
<EscapeNeeded name="Pete "Maverick" Mitchell"/>
In XML textual content:
<NoEscapeNeeded>He said, "Don't quote me."</NoEscapeNeeded>
In XML attributes delimited by single quotes ('
):
<NoEscapeNeeded name='Pete "Maverick" Mitchell'/>
Similarly, ('
) require no escaping if ("
) are used for the attribute value delimiters:
<NoEscapeNeeded name="Pete 'Maverick' Mitchell"/>
WHERE NULLIF(your_column, '') IS NOT NULL
Nowadays (4.5 years on), to make it easier for a human to read, I would just use
WHERE your_column <> ''
While there is a temptation to make the null check explicit...
WHERE your_column <> ''
AND your_column IS NOT NULL
...as @Martin Smith demonstrates in the accepted answer, it doesn't really add anything (and I personally shun SQL nulls entirely nowadays, so it wouldn't apply to me anyway!).
Back in the day DIM reserved memory for the array and when memory was limited you had to be careful how you used it. I once wrote (in 1981) a BASIC program on TRS-80 Model III with 48Kb RAM. It wouldn't run on a similar machine with 16Kb RAM until I decreased the array size by changing the DIM statement
Here's a one liner answer for this question
List<DataGridViewRow> list = DataGridView1.Rows.Cast<DataGridViewRow>().Where(k => Convert.ToBoolean(k.Cells[CheckBoxColumn1.Name].Value) == true).ToList();
The growing complexity of this answer over time, and the many hacks required, probably ought to caution you against doing this at all. It's relying on undocumented internal implementation details of the admin, is likely to break again in future versions of Django, and is no easier to implement than just finding another JS calendar widget and using that.
That said, here's what you have to do if you're determined to make this work:
Define your own ModelForm subclass for your model (best to put it in forms.py in your app), and tell it to use the AdminDateWidget / AdminTimeWidget / AdminSplitDateTime (replace 'mydate' etc with the proper field names from your model):
from django import forms
from my_app.models import Product
from django.contrib.admin import widgets
class ProductForm(forms.ModelForm):
class Meta:
model = Product
def __init__(self, *args, **kwargs):
super(ProductForm, self).__init__(*args, **kwargs)
self.fields['mydate'].widget = widgets.AdminDateWidget()
self.fields['mytime'].widget = widgets.AdminTimeWidget()
self.fields['mydatetime'].widget = widgets.AdminSplitDateTime()
Change your URLconf to pass 'form_class': ProductForm instead of 'model': Product to the generic create_object view (that'll mean "from my_app.forms import ProductForm" instead of "from my_app.models import Product", of course).
In the head of your template, include {{ form.media }} to output the links to the Javascript files.
And the hacky part: the admin date/time widgets presume that the i18n JS stuff has been loaded, and also require core.js, but don't provide either one automatically. So in your template above {{ form.media }} you'll need:
<script type="text/javascript" src="/my_admin/jsi18n/"></script>
<script type="text/javascript" src="/media/admin/js/core.js"></script>
You may also wish to use the following admin CSS (thanks Alex for mentioning this):
<link rel="stylesheet" type="text/css" href="/media/admin/css/forms.css"/>
<link rel="stylesheet" type="text/css" href="/media/admin/css/base.css"/>
<link rel="stylesheet" type="text/css" href="/media/admin/css/global.css"/>
<link rel="stylesheet" type="text/css" href="/media/admin/css/widgets.css"/>
This implies that Django's admin media (ADMIN_MEDIA_PREFIX) is at /media/admin/ - you can change that for your setup. Ideally you'd use a context processor to pass this values to your template instead of hardcoding it, but that's beyond the scope of this question.
This also requires that the URL /my_admin/jsi18n/ be manually wired up to the django.views.i18n.javascript_catalog view (or null_javascript_catalog if you aren't using I18N). You have to do this yourself instead of going through the admin application so it's accessible regardless of whether you're logged into the admin (thanks Jeremy for pointing this out). Sample code for your URLconf:
(r'^my_admin/jsi18n', 'django.views.i18n.javascript_catalog'),
Lastly, if you are using Django 1.2 or later, you need some additional code in your template to help the widgets find their media:
{% load adminmedia %} /* At the top of the template. */
/* In the head section of the template. */
<script type="text/javascript">
window.__admin_media_prefix__ = "{% filter escapejs %}{% admin_media_prefix %}{% endfilter %}";
</script>
Thanks lupefiasco for this addition.
You can also make an exception for leaving the page via submitting a particular form:
$(window).bind('beforeunload', function(){
return "Do you really want to leave now?";
});
$("#form_id").submit(function(){
$(window).unbind("beforeunload");
});
you can use the Utility mettod. Arrays.deeptoString();
public static void main(String[] args) {
int twoD[][] = new int[4][];
twoD[0] = new int[1];
twoD[1] = new int[2];
twoD[2] = new int[3];
twoD[3] = new int[4];
System.out.println(Arrays.deepToString(twoD));
}
Open your Dockerfile under elasticsearch folder and update "network.host=0.0.0.0" with "network.host=127.0.0.1". Then restart the container. Check your connection with curl.
$ curl http://docker-machine-ip:9200
{
"name" : "vI6Zq_D",
"cluster_name" : "elasticsearch",
"cluster_uuid" : "hhyB_Wa4QwSX6zZd1F894Q",
"version" : {
"number" : "5.2.0",
"build_hash" : "24e05b9",
"build_date" : "2017-01-24T19:52:35.800Z",
"build_snapshot" : false,
"lucene_version" : "6.4.0"
},
"tagline" : "You Know, for Search"
}
You could also try posix_memalign()
(on POSIX platforms, of course).
See this question. LINQ Take() and Skip() are the most popular answers, as well as Array.CopyTo().
A purportedly faster extension method is described here.
In my opinion, deferreds/promises (as you have mentionned) is the way to go, rather than using timeouts.
Here is an example I have just written to demonstrate how you could do it using deferreds/promises.
Take some time to play around with deferreds. Once you really understand them, it becomes very easy to perform asynchronous tasks.
Hope this helps!
$(function(){
function1().done(function(){
// function1 is done, we can now call function2
console.log('function1 is done!');
function2().done(function(){
//function2 is done
console.log('function2 is done!');
});
});
});
function function1(){
var dfrd1 = $.Deferred();
var dfrd2= $.Deferred();
setTimeout(function(){
// doing async stuff
console.log('task 1 in function1 is done!');
dfrd1.resolve();
}, 1000);
setTimeout(function(){
// doing more async stuff
console.log('task 2 in function1 is done!');
dfrd2.resolve();
}, 750);
return $.when(dfrd1, dfrd2).done(function(){
console.log('both tasks in function1 are done');
// Both asyncs tasks are done
}).promise();
}
function function2(){
var dfrd1 = $.Deferred();
setTimeout(function(){
// doing async stuff
console.log('task 1 in function2 is done!');
dfrd1.resolve();
}, 2000);
return dfrd1.promise();
}
You don't use the :
syntax - pull
always modifies the currently checked-out branch. Thus:
git pull origin my_remote_branch
while you have my_local_branch
checked out will do what you want.
Since you already have the tracking branch set, you don't even need to specify - you could just do...
git pull
while you have my_local_branch
checked out, and it will update from the tracked branch.
Documentation for parseDouble()
says "Returns a new double initialized to the value represented by the specified String, as performed by the valueOf method of class Double.", so they should be identical.
I got this way to close fading my Alert after 3 seconds. Hope it will be useful.
setTimeout(function(){
$('.alert').fadeTo("slow", 0.1, function(){
$('.alert').alert('close')
});
}, 3000)
So you can do:
cat Dockerfile | envsubst | docker build -t my-target -
Then have a Dockerfile with something like:
ENV MY_ENV_VAR $MY_ENV_VAR
I guess there might be a problem with some special characters, but this works for most cases at least.
Use %systemdrive%%homepath%
. %systemdrive%
gives drive character ( Mostly C:
) and %homepath%
gives user home directory ( \Users\<USERNAME>
).
There seems to be a lot of misinformation about how to use this event going around (even in upvoted answers on this page).
The onbeforeunload
event API is supplied by the browser for a specific purpose: The only thing you can do that's worth doing in this method is to return a string which the browser will then prompt to the user to indicate to them that action should be taken before they navigate away from the page. You CANNOT prevent them from navigating away from a page (imagine what a nightmare that would be for the end user).
Because browsers use a confirm prompt to show the user the string you returned from your event listener, you can't do anything else in the method either (like perform an ajax request).
In an application I wrote, I want to prompt the user to let them know they have unsaved changes before they leave the page. The browser prompts them with the message and, after that, it's out of my hands, the user can choose to stay or leave, but you no longer have control of the application at that point.
An example of how I use it (pseudo code):
onbeforeunload = function() {
if(Application.hasUnsavedChanges()) {
return 'You have unsaved changes. Please save them before leaving this page';
}
};
If (and only if) the application has unsaved changes, then the browser prompts the user to either ignore my message (and leave the page anyway) or to not leave the page. If they choose to leave the page anyway, too bad, there's nothing you can do (nor should be able to do) about it.
ok, so I think it's actually possible (for the sake of argument):
>>> your_list = [5,6,7]
>>> 2 in zip(*enumerate(your_list))[0]
True
>>> 3 in zip(*enumerate(your_list))[0]
False
cmd
in program startset PATH="%PATH%;C:\Program Files\Java\jdk1.6.0_18\bin"
This helped me a lot and save me much time, its easy to use, and work well, i've even take the risque of change it and it still works.
Fairly good if you dont want to lost to much time on doing it :)
Note that shutdown.exe
is just a wrapper around InitiateSystemShutdownEx
, which provides some niceties missing in ExitWindowsEx
C# version of @yonatan-kiron's answer, and Selenium's using
statement from their example code.
ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.AddArgument("--window-size=1300,1000");
using (IWebDriver driver = new ChromeDriver(chromeOptions))
{
...
}
componentWillReceiveProps is depcricated since react 16: use getDerivedStateFromProps instead
If I understand correctly, you have a parent component that is passing start_time
down to the ModalBody
component which assigns it to its own state? And you want to update that time from the parent, not a child component.
React has some tips on dealing with this scenario. (Note, this is an old article that has since been removed from the web. Here's a link to the current doc on component props).
Using props to generate state in
getInitialState
often leads to duplication of "source of truth", i.e. where the real data is. This is becausegetInitialState
is only invoked when the component is first created.Whenever possible, compute values on-the-fly to ensure that they don't get out of sync later on and cause maintenance trouble.
Basically, whenever you assign parent's props
to a child's state
the render method isn't always called on prop update. You have to invoke it manually, using the componentWillReceiveProps
method.
componentWillReceiveProps(nextProps) {
// You don't have to do this check first, but it can help prevent an unneeded render
if (nextProps.startTime !== this.state.startTime) {
this.setState({ startTime: nextProps.startTime });
}
}
Thanks for the help everyone, but since i'm on HP-UX (after all: the more you pay, the less features you get...) i've had to resort to perl:
perl -e '@T=localtime(time-86400);printf("%02d/%02d/%04d",$T[3],$T[4]+1,$T[5]+1900)' | read dt
In my opinion, Sergiy's answer should be the selected answer for the given question. I'm sharing my understanding.
I was looking to autoload my package files using composer which I have under the dir structure given below.
<web-root>
|--------src/
| |--------App/
| |
| |--------Test/
|
|---------library/
|
|---------vendor/
| |
| |---------composer/
| | |---------autoload_psr4.php
| |
| |----------autoload.php
|
|-----------composer.json
|
I'm using psr-4 autoloading specification.
Had to add below lines to the project's composer.json. I intend to place my class files inside src/App , src/Test and library directory.
"autoload": {
"psr-4": {
"OrgName\\AppType\\AppName\\": ["src/App", "src/Test", "library/"]
}
}
This is pretty much self explaining. OrgName\AppType\AppName is my intended namespace prefix. e.g for class User in src/App/Controller/Provider/User.php -
namespace OrgName\AppType\AppName\Controller\Provider; // namespace declaration
use OrgName\AppType\AppName\Controller\Provider\User; // when using the class
Also notice "src/App", "src/Test" .. are from your web-root that is where your composer.json is. Nothing to do with the vendor dir. take a look at vendor/autoload.php
Now if composer is installed properly all that is required is #composer update
After composer update my classes loaded successfully. What I observed is that composer is adding a line in vendor/composer/autoload_psr4.php
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
'Monolog\\' => array($vendorDir . '/monolog/monolog/src/Monolog'),
'OrgName\\AppType\\AppName\\' => array($baseDir . '/src/App', $baseDir . '/src/Test', $baseDir . '/library'),
);
This is how composer maps. For psr-0 mapping is in vendor/composer/autoload_classmap.php