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Size: 1.73 KB
Versions: 14
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Contents
# encoding: UTF-8
# Copyright 2011 innoQ Deutschland GmbH
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
module Concept
module Relation
module ReverseRelationExtension
def create_with_reverse_relation(target_concept)
relation_class = proxy_reflection.class_name.constantize
ActiveRecord::Base.transaction do
# The one direction
scope = relation_class.where(:owner_id => proxy_owner.id, :target_id => target_concept.id)
scope.any? || scope.create!
# The reverse direction
scope = relation_class.reverse_relation_class.where(:owner_id => target_concept.id, :target_id => proxy_owner.id)
scope.any? || scope.create!
end
end
def destroy_with_reverse_relation(target_concept)
relation_class = proxy_reflection.class_name.constantize
ActiveRecord::Base.transaction do
relation_class.where(:owner_id => proxy_owner.id, :target_id => target_concept.id).all.each do |relation|
relation.destroy
end
relation_class.reverse_relation_class.where(:owner_id => target_concept.id, :target_id => proxy_owner.id).all.each do |relation|
relation.destroy
end
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems