Additions to the default call class (Database)
 partial void Updatetask(task instance);
 partial void Deletetask(task instance);
 partial void Inserttask(task instance);
		private void detach_tasks(task entity)
		{
			this.SendPropertyChanging();
			entity.task1 = null;
		}
		private void attach_tasks(task entity)
		{
			this.SendPropertyChanging();
			entity.task1 = this;
		}
		private void detach_tasks2(task entity)
		{
			this.SendPropertyChanging();
			entity.person2 = null;
		}
		private void attach_tasks2(task entity)
		{
			this.SendPropertyChanging();
			entity.person2 = this;
		}