Module: Oort::Scopes

Defined in:
lib/oort/scopes.rb

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/oort/scopes.rb', line 5

def self.included(base)
  # user = User.find(909)
  # user.posts.ordered_with(user.posts_ordered)
  # by default this will use posts.id::INTEGER
  # but you can pass in something else if you have joins and items
  # stored in another table
  base.scope :ordered_with, lambda { |ids, type = "#{table_name}.id::INTEGER"|
                              if ids.blank?
                                order(:id)
                              else
                                order(Arel.sql("array_position(ARRAY[#{ids.join(", ")}], #{type})"))
                              end
                            }
end