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What is the difference between t.belongs_to and t.references in rails?
...= options.delete(:polymorphic)
args.each do |col|
column("#{col}_id", :integer, options)
column("#{col}_type", :string, polymorphic.is_a?(Hash) ? polymorphic : options) unless polymorphic.nil?
end
end
alias :belongs_to :references
This is just a way of making your code more...
How to use split?
... is in some field you could also do:
tRow.append($('<td>').text($('[id$=txtEntry2]').val().split(' -- ')[0])));
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How to vertically center a div for all browsers?
...ound solution I could build to vertically and horizontally center a fixed-width, flexible height content box. It was tested and working for recent versions of Firefox, Opera, Chrome, and Safari.
.outer {
display: table;
position: absolute;
top: 0;
left: 0;
height: 100%;
width:...
Android: Expand/collapse animation
... adapts height if content changes. It works great for me.
public static void expand(final View v) {
int matchParentMeasureSpec = View.MeasureSpec.makeMeasureSpec(((View) v.getParent()).getWidth(), View.MeasureSpec.EXACTLY);
int wrapContentMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, Vi...
Android WebView: handling orientation changes
...f you do not want the WebView to reload on orientation changes simply override onConfigurationChanged in your Activity class:
@Override
public void onConfigurationChanged(Configuration newConfig){
super.onConfigurationChanged(newConfig);
}
And set the android:configChanges attribute ...
HTML anchor link - href and onclick both?
... @maciek then the return value is treated as undefined which is considered false for these purposes.
– Amber
May 6 '15 at 1:05
...
Difference between style = “position:absolute” and style = “position:relative”
...the browser viewport, and 20px from the left edge of same.
However, if I did something like this:
<div id="outer" style="position:relative">
<div id="inner" style="position:absolute; left: 20px; top: 20px;"></div>
</div>
...then the inner div would be positioned 20px...
Call an activity method from a fragment
...ayout xml
YourFragmentClass fragment = (YourFragmentClass)fm.findFragmentById(R.id.your_fragment_id);
fragment.yourPublicMethod();
If you added fragment via code and used a tag string when you added your fragment, use findFragmentByTag instead:
YourFragmentClass fragment = (YourFragmentClass)fm.f...
Most simple but complete CMake example
...tions offer some form of named arguments by the fact that they expect some ids like PUBLIC or DESTINATION in their argument list, to group the arguments. But that's not a language feature, those ids are also just strings, and parsed by the function implementation.
you can clone everything from git...
Find objects between two dates MongoDB
I've been playing around storing tweets inside mongodb, each object looks like this:
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