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Adding 'serial' to existing column in Postgres
... answer.
A non-interactive solution
Just adding to the other two answers, for those of us who need to have these Sequences created by a non-interactive script, while patching a live-ish DB for instance.
That is, when you don't wanna SELECT the value manually and type it yourself into a subsequent C...
Convert json data to a html table [closed]
...
Thanks all for your replies. I wrote one myself. Please note that this uses jQuery.
Code snippet:
var myList = [
{ "name": "abc", "age": 50 },
{ "age": "25", "hobby": "swimming" },
{ "name": "xyz", "hobby": "programming" }...
Is it possible to read the value of a annotation in java?
....RUNTIME)
@interface Column {
....
}
you can do something like this
for (Field f: MyClass.class.getFields()) {
Column column = f.getAnnotation(Column.class);
if (column != null)
System.out.println(column.columnName());
}
UPDATE : To get private fields use
Myclass.class.getDecl...
Convert JSON String to Pretty Print JSON output using Jackson
...when I use indented to add into the Model so that I can show them in resultform page. It still gets printed in two three lines. I have updated the question, maybe you will get some more idea what's happening now.
– arsenal
Jan 26 '13 at 3:09
...
Determine if an element has a CSS class with jQuery
...ched literally against the collection's elements' className string. So if, for instance, you have an element,
<span class="foo bar" />
then this will return true:
$('span').hasClass('foo bar')
and these will return false:
$('span').hasClass('bar foo')
$('span').hasClass('foo bar')
...
Can one AngularJS controller call another?
...e to the same instance of the service
// so if the service updates state for example, this controller knows about it
}
Another way is emitting an event on scope:
function FirstController($scope)
{
$scope.$on('someEvent', function(event, args) {});
// another controller or even directive
}
...
HTML tag want to add both href and onclick working
...
Doesn't work for me, until I put href="#" there instead of a real URL.
– yegor256
Sep 7 '17 at 18:00
...
What's the better (cleaner) way to ignore output in PowerShell? [closed]
... to [Void], but that may not be as understandable when glancing at code or for new users.
I guess I slightly prefer redirecting output to $null.
Do-Something > $null
Edit
After stej's comment again, I decided to do some more tests with pipelines to better isolate the overhead of trashing the...
Overriding a Rails default_scope
...o override the default scope if you need to.
Have a look at this question for more details.
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Laravel Check If Related Model Exists
... can't use count on the relation object, so there's no one-fits-all method for all relations. Use query method instead as @tremby provided below:
$model->relation()->exists()
generic solution working on all the relation types (pre php 7.2):
if (count($model->relation))
{
// exists
}...