CREATE TABLE IF NOT EXISTS `teachers` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `school_id` INT,
  `user_id` INT,
  `can_edit_workload` BOOLEAN NOT NULL DEFAULT FALSE,
  PRIMARY KEY (`id`),
  CONSTRAINT `fk_teachers_school_id` FOREIGN KEY (`school_id`) REFERENCES `schools`(`id`) ON DELETE CASCADE,
  CONSTRAINT `fk_teachers_user_id` FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON DELETE SET NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;