destroy.rb in mongoid-2.4.1

- old
+ new

@@ -1,9 +1,26 @@
 # encoding: utf-8
 module Mongoid # :nodoc:
   module Relations #:nodoc:
     module Cascading #:nodoc:
-      class Destroy < Strategy
+      class Destroy
+
+        attr_accessor :document, :relation, :metadata
+
+        # Initialize the new cascade strategy, which will set up the relation
+        # and the metadata.
+        #
+        # @example Instantiate the strategy
+        #   Strategy.new(document, metadata)
+        #
+        # @param [ Document ] document The document to cascade from.
+        # @param [ Metadata ] metadata The relation's metadata.
+        #
+        # @return [ Strategy ] The new strategy.
+        def initialize(document, metadata)
+          @document, @metadata = document, metadata
+          @relation = document.send(metadata.name)
+        end
 
         # Execute the cascading deletion for the relation if it already exists.
         # This should be optimized in the future potentially not to load all
         # objects from the db.
         #