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How do you delete an ActiveRecord object?
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It's destroy and destroy_all methods, like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent as...
Validation of radio button group using jQuery validation plugin
...alidation for a radio button group (one radio button should be selected) using jQuery validation plugin?
8 Answers
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Android: Vertical alignment for multi line EditText (Text area)
I want to have 5 lines for the height of the text area. I am using the following code.
7 Answers
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Unknown Column In Where Clause
... parsed and evaluate prior to the select clause. Because of this the aliasing of u_name to user_name has not yet occurred.
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Can a div have multiple classes (Twitter Bootstrap) [duplicate]
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Sure, a div can have as many classes as you want (this is both regarding to bootstrap and HTML in general):
<div class="active dropdown-toggle"></div>
Just separate the classes by space.
Also: Keep in mind some bootstrap classes are supposed to be used for the same stuff but in...
Detect when an HTML5 video finishes
How do you detect when a HTML5 <video> element has finished playing?
7 Answers
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How to Reload ReCaptcha using JavaScript?
...refresh Recaptcha image anytime an error is occured (i.e. username already in use).
10 Answers
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How to sign an android apk file
I am trying to sign my apk file. I can't figure out how to do it. I can't find good in-depth directions. I have very little programing experience, so any help would be appreciated.
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Getting URL hash location, and using it in jQuery
I'd like to get the value after a hash in the URL of the current page and then be able to apply this in a new function... eg.
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Add and Remove Views in Android Dynamically?
... add and remove views such as TextView s from Android app like on the original stock Android contacts screen where you press a small icon on the right side of a field and it adds or deletes a field which consists of a TextView and an editTextView (from what I can see).
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