Displaying 1 result from an estimated 1 matches for "pic_tags".
2010 Jan 15
1
Chaining queries in ActiveRecord
...t a simple search function,
so that I can search for a picture with several given tags.
Now say I want to search for pics that are tagged with "dog" and
"cat". The simplest way to do this is to use named_scopes, for
example:
[code]
class Pic < ActiveRecord::Base
has_many :pic_tags
has_many :tags, :through => :pic_tags
named_scope :dog, options_for_tag(“dog") # options_for_tag(tag) is a
method to generate joined table search conditions, not important
named_scope :cat, options_for_tag("cat")
end
[/code]
But when I chain the query like this:
[code]Pic....