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MySQL: Invalid use of group function
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edited Nov 21 '18 at 8:34
Backrub32
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How to select following sibling/xml tag using xpath
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argparse module How to add option without any argument?
... jfsjfs
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Rollback a Git merge
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Reverting a merge commit has been exhaustively covered in other questions. When you do a fast-f...
Insert/Update Many to Many Entity Framework . How do I do it?
I'm using EF4 and new to it. I have a many to many in my project and cannot seem to work out how to insert or update. I have build a small project just to see how it should be coded.
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How can I filter a Django query with a list of values?
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From the Django documentation:
Blog.objects.filter(pk__in=[1, 4, 7])
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How to change cursor from pointer to finger using jQuery?
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jQuery Multiple ID selectors
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– ShankarSangoli
Aug 16 '11 at 14:12
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How to get the max of two values in MySQL?
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edited May 24 '19 at 10:13
answered Oct 14 '09 at 11:29
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What is scope/named_scope in rails?
...e(subscribed_to_newsletter: true)
#yada yada
end
If you're using Rails 4 or newer, do this instead:
#File: users.rb
class User < ActiveRecord::Base
scope :newsletter, -> { where(subscribed_to_newsletter: true) }
#yada yada
end
This allows you to access your subscribers by simply doi...