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cancelling queued performSelector:afterDelay calls
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[NSObject cancelPreviousPerformRequestsWithTarget:]
or
[NSObject cancelPreviousPerformRequ...
Django's SuspiciousOperation Invalid HTTP_HOST header
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edited Apr 25 '13 at 8:04
Henrik Heimbuerger
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Insert all values of a table into another table in SQL
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263
The insert statement actually has a syntax for doing just that. It's a lot easier if you speci...
How can you run a command in bash over until success
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John Kugelman
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answered Mar 11 '11 at 14:48
ErikErik
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postgresql return 0 if returned value is null
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use coalesce
COALESCE(value [, ...])
The COALESCE function returns the first of its argument...
Add directives from directive in AngularJS
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In cases where you have multiple directives on a single DOM element and where the
order in whi...
Convert XML to JSON (and back) using Javascript
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12 Answers
12
Active
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How do you delete an ActiveRecord object?
... 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 association options.
User.delete_all(condition:...