collection_for (DataMapper::Associations::OneToMany::Relationship)

    # File lib/dm-core/associations/one_to_many.rb, line 46
            def collection_for(source, other_query = nil)
              query = query_for(source, other_query)

              collection = collection_class.new(query)
              collection.relationship = self
              collection.source       = source

              # make the collection empty if the source is not saved
              collection.replace([]) unless source.saved?

              collection
            end