Module: ActiveRecord::Scoping::Default::ClassMethods

Defined in:
activerecord/lib/active_record/scoping/default.rb

Instance Method Summary collapse

Instance Method Details

#before_remove_constObject

:nodoc:


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# File 'activerecord/lib/active_record/scoping/default.rb', line 44

def before_remove_const #:nodoc:
  self.current_scope = nil
end

#unscopedObject

Returns a scope for the model without the default_scope.

class Post < ActiveRecord::Base
  def self.default_scope
    where :published => true
  end
end

Post.all          # Fires "SELECT * FROM posts WHERE published = true"
Post.unscoped.all # Fires "SELECT * FROM posts"

This method also accepts a block. All queries inside the block will not use the default_scope:

Post.unscoped {
  Post.limit(10) # Fires "SELECT * FROM posts LIMIT 10"
}

It is recommended to use the block form of unscoped because chaining unscoped with scope does not work. Assuming that published is a scope, the following two statements are equal: the default_scope is applied on both.

Post.unscoped.published
Post.published

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# File 'activerecord/lib/active_record/scoping/default.rb', line 40

def unscoped #:nodoc:
  block_given? ? relation.scoping { yield } : relation
end