Sha256: 02559388c1e90b93f3ffbb28d3c67a4cfa702bbc8317d97c83600dec7a7ace6b
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Versions: 16
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Contents
# encoding: utf-8 require "mongoid/relations/cascading/strategy" require "mongoid/relations/cascading/delete" require "mongoid/relations/cascading/destroy" require "mongoid/relations/cascading/nullify" module Mongoid # :nodoc: module Relations #:nodoc: # This module defines the behaviour for setting up cascading deletes and # nullifies for relations, and how to delegate to the approriate strategy. module Cascading extend ActiveSupport::Concern included do class_attribute :cascades self.cascades = [] delegate :cascades, :to => "self.class" end # Perform all cascading deletes, destroys, or nullifies. Will delegate to # the appropriate strategy to perform the operation. # # @example Execute cascades. # document.cascade! # # @since 2.0.0.rc.1 def cascade! cascades.each do |name| metadata = relations[name] strategy = metadata.cascade_strategy strategy.new(self, metadata).cascade end end module ClassMethods #:nodoc: # Attempt to add the cascading information for the document to know how # to handle associated documents on a removal. # # @example Set up cascading information # Movie.cascade(metadata) # # @param [ Metadata ] metadata The metadata for the relation. # # @return [ Class ] The class of the document. # # @since 2.0.0.rc.1 def cascade(metadata) tap { self.cascades += [ metadata.name.to_s ] if metadata.dependent? } end end end end end
Version data entries
16 entries across 16 versions & 2 rubygems