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ActiveRecord::NamedScope

Public Class Methods

included(base) click to toggle source

All subclasses of ActiveRecord::Base have one named scope:

  • scoped - which allows for the creation of anonymous scopes, on the fly: Shirt.scoped(:conditions => {:color => 'red'}).scoped(:include => :washing_instructions)

These anonymous scopes tend to be useful when procedurally generating complex queries, where passing intermediate values (scopes) around as first-class objects is convenient.

You can define a scope that applies to all finders using ActiveRecord::Base.default_scope.

# File lib/active_record/named_scope.rb, line 10
def self.included(base)
  base.extend ClassMethods
end

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