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Many-to-many relationship with the same model in rails?
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For reference: the Rails documentation on the subject. There's a section called “Many-to-many”, and of course the documentation on the class methods themselves.
Simplest scenario, uni-directional, no additional fields
This is the most compact in code.
I'll start out with this basic schema f...
How to dynamically update a ListView on Android [closed]
... that filters based on user input, where the items shown are updated dynamically based on the TextView value?
3 Answers
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twitter bootstrap typeahead ajax example
...xample of the twitter bootstrap typeahead element that will make an ajax call to populate it's dropdown.
16 Answers
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How to hide soft keyboard on android after clicking outside EditText?
...f you are defining it within an activity, avoid the activity parameter, or call hideSoftKeyboard(this).
The trickiest part is when to call it. You can write a method that iterates through every View in your activity, and check if it is an instanceof EditText if it is not register a setOnTouchListen...
jQuery select2 get value of select tag?
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for an select called by id name instead of class name, use: $(".first").val()
– Rui Martins
Jun 21 '17 at 9:15
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Get value of c# dynamic property via string
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Once you have your PropertyInfo (from GetProperty), you need to call GetValue and pass in the instance that you want to get the value from. In your case:
d.GetType().GetProperty("value2").GetValue(d, null);
shar...
Is there a builtin identity function in python?
...ing "multiple values" in Python is to return a tuple of the values - technically that's one return value but it can be used in most contexts as if it were multiple values. But doing that here means you get
>>> def mv_identity(*args):
... return args
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>>> mv_identity(1,2,3)
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How to get the body's content of an iframe in Javascript?
...// or
var iframeContent = iframeDocument.querySelectorAll('#frameBody');
Call functions in the iframe
Get just the window element from iframe to call some global functions, variables or whole libraries (e.g. jQuery):
var iframeWindow = iframe.contentWindow;
// you can even call jQuery or other ...
Create singleton using GCD's dispatch_once in Objective-C
...and thread-safe way to create an instance of your class. It may not technically be a "singleton" (in that there can only ever be 1 of these objects), but as long as you only use the [Foo sharedFoo] method to access the object, this is good enough.
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ASP.NET MVC controller actions that return JSON or partial html
...ctionMethod() {
return Json(new {foo="bar", baz="Blech"});
}
Then just call the action method using Ajax. You could use one of the helper methods from the ViewPage such as
<%= Ajax.ActionLink("SomeActionMethod", new AjaxOptions {OnSuccess="somemethod"}) %>
SomeMethod would be a javascr...