我试图从数据库中删除用户时出现此错误,我知道这是因为我试图删除的用户是外键在约会表中,但我不知道如何纠正它或我出错的地方。不知道这是否改变什么,但只是柜面我使用laravel无法删除或更新父行:外键约束失败 - MYSQL
用户表
CREATE TABLE `users` (
`id` int(10) UNSIGNED NOT NULL,
`firstname` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`surname` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`address` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`postcode` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`email` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`password` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`dateofbirth` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`role` tinyint(4) NOT NULL,
`remember_token` varchar(100) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
预约表
CREATE TABLE `appointments` (
`id` int(10) UNSIGNED NOT NULL,
`time` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`date` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`doctor_id` int(10) UNSIGNED NOT NULL,
`user_id` int(10) UNSIGNED NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
ALTER TABLE `appointments`
ADD PRIMARY KEY (`id`),
ADD KEY `appointments_doctor_id_foreign` (`doctor_id`),
ADD KEY `appointments_user_id_foreign` (`user_id`);
ALTER TABLE `appointments`
ADD CONSTRAINT `appointments_doctor_id_foreign` FOREIGN KEY (`doctor_id`) REFERENCES `doctors` (`id`),
ADD CONSTRAINT `appointments_user_id_foreign` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`);
与删除级联选项,它工作很好,谢谢 – TF120