partial void DeleteDiscussion(Discussion instance);
 partial void UpdateDiscussion(Discussion instance);
		private void detach_Discussions(Discussion entity)
		{
			this.SendPropertyChanging();
			entity.DiscussionProvider = null;
		}
 partial void InsertDiscussion(Discussion instance);
		private void detach_Discussions(Discussion entity)
		{
			this.SendPropertyChanging();
			entity.ContentItem = null;
		}