partial void Deleteuser_module(user_module instance);
 partial void Updateuser_module(user_module instance);
		private void detach_user_modules(user_module entity)
		{
			this.SendPropertyChanging();
			entity.module = null;
		}
 partial void Insertuser_module(user_module instance);
		private void attach_user_modules(user_module entity)
		{
			this.SendPropertyChanging();
			entity.module = this;
		}