inherited.rb in customize-0.0.8

- old
+ new

@@ -26,11 +26,11 @@
 													 end
 				base.joins(:inherit_node).where(condition_string, node.left, node.right)
 			}
 
 			base.after_create { |object|
-				object.create_inherit_node :left=>0, :right=>1
+				object.create_inherit_node
 			}
 
 			base.delegate :leaf?, :to=>:inherit_node
 
 			base.before_destroy { |object|
@@ -79,15 +79,11 @@
 			raise 'should be same class' if self.class != parent.class
 			raise 'should not be self' if self.id == parent.id
 			raise 'should not inherit descents' if self.descent_ids.include? parent.id
 			raise 'should not inherit parent' if self.parent.try(:id) == parent.id
 			self.class.transaction do
-				inherit_node.parent_id = parent.inherit_node.id
-				right = parent.inherit_node.right
-				InheritNode.where("right >= ?", inherit_node.left).update_all("right = right+2")
-				inherit_node.left = right
-				inherit_node.right = right + 1
-				inherit_node.save
+				inherit_node.destroy
+				create_inherit_node(:parent_id=>parent.inherit_node.id)
 			end
 		end
 
 		def ascents options={:include=>false}
 			return [] if new_record?