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Rails - Validate Presence Of Association?
...
You can use validates_presence_of http://apidock.com/rails/ActiveModel/Validations/ClassMethods/validates_presence_of
class A < ActiveRecord::Base
has_many :bs
validates_presence_of :bs
end
or just validates
http://apidock.com/rails/ActiveModel/Vali...
ASP MVC href to a controller/view
...;
<span>Clients</span>
</a>
The result would have http://localhost/10000 (or with whatever port you are using) to be appended to the URL structure like:
http://localhost:10000/Users
I hope this helps.
...
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android
...ooking at your code. However, this article has some tips that might help:
http://android-developers.blogspot.de/2009/01/avoiding-memory-leaks.html
In particular, using static variables is likely to make things worse, not better. You might need to add code that removes callbacks when your applicati...
How to change href of tag on button click through javascript
...ef(){
document.getElementById("a").setAttribute("onclick", "location.href='http://religiasatanista.ro'");
}
</script>
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Why there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT clause?
... see Automatic
Initialization and Updating for TIMESTAMP and DATETIME.
http://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-5.html
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CSS Font Border?
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UPDATE
Here's a SCSS mixin to generate the stroke: http://codepen.io/pixelass/pen/gbGZYL
/// Stroke font-character
/// @param {Integer} $stroke - Stroke width
/// @param {Color} $color - Stroke color
/// @return {List} - text-shadow list
@function stroke($str...
How to set an iframe src attribute from a variable in AngularJS
...$sceProvider) {
$sceProvider.enabled(false);
});
for more info
https://docs.angularjs.org/api/ng/service/$sce
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Inefficient jQuery usage warnings in PHPStorm IDE
...elector rather than selection on id and then find for a very simple case:
http://jsperf.com/jquery-find-vs-insel
For selection of multiple children by class at any depth, the "find" does appear to be faster:
http://jsperf.com/jquery-find-vs-insel/7
There was some discussion about this on jQuery ...
Change the URL in the browser without loading the new page using JavaScript
...e the url without changing pages is to use an internal link or hash. e.g.: http://site.com/page.html becomes http://site.com/page.html#item1 . This technique is often used in hijax(AJAX + preserve history).
When doing this I'll often just use links for the actions with the hash as the href, then a...
How do you stretch an image to fill a while keeping the image's aspect-ratio?
...
width: auto;
}
HTML
<div class="container">
<img src="http://i48.tinypic.com/wrltuc.jpg" />
</div>
<br />
<br />
<div class="container">
<img src="http://i47.tinypic.com/i1bek8.jpg" />
</div>
Script
$(window).load(function(){
$('.conta...