完整性更新

现在已经实现了大部分基础功能

drizzle/0003_petite_newton_destine.sql

@@ -0,0 +1,43 @@
+CREATE TABLE `class_enrollments` (
+	`class_id` varchar(128) NOT NULL,
+	`student_id` varchar(128) NOT NULL,
+	`class_enrollment_status` enum('active','inactive') NOT NULL DEFAULT 'active',
+	`created_at` timestamp NOT NULL DEFAULT (now()),
+	CONSTRAINT `class_enrollments_class_id_student_id_pk` PRIMARY KEY(`class_id`,`student_id`)
+);
+--> statement-breakpoint
+CREATE TABLE `class_schedule` (
+	`id` varchar(128) NOT NULL,
+	`class_id` varchar(128) NOT NULL,
+	`weekday` int NOT NULL,
+	`start_time` varchar(5) NOT NULL,
+	`end_time` varchar(5) NOT NULL,
+	`course` varchar(255) NOT NULL,
+	`location` varchar(100),
+	`created_at` timestamp NOT NULL DEFAULT (now()),
+	`updated_at` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
+	CONSTRAINT `class_schedule_id` PRIMARY KEY(`id`)
+);
+--> statement-breakpoint
+CREATE TABLE `classes` (
+	`id` varchar(128) NOT NULL,
+	`name` varchar(255) NOT NULL,
+	`grade` varchar(50) NOT NULL,
+	`homeroom` varchar(50),
+	`room` varchar(50),
+	`teacher_id` varchar(128) NOT NULL,
+	`created_at` timestamp NOT NULL DEFAULT (now()),
+	`updated_at` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
+	CONSTRAINT `classes_id` PRIMARY KEY(`id`)
+);
+--> statement-breakpoint
+ALTER TABLE `class_enrollments` ADD CONSTRAINT `ce_c_fk` FOREIGN KEY (`class_id`) REFERENCES `classes`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE `class_enrollments` ADD CONSTRAINT `ce_s_fk` FOREIGN KEY (`student_id`) REFERENCES `users`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE `class_schedule` ADD CONSTRAINT `cs_c_fk` FOREIGN KEY (`class_id`) REFERENCES `classes`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE `classes` ADD CONSTRAINT `classes_teacher_id_users_id_fk` FOREIGN KEY (`teacher_id`) REFERENCES `users`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX `class_enrollments_class_idx` ON `class_enrollments` (`class_id`);--> statement-breakpoint
+CREATE INDEX `class_enrollments_student_idx` ON `class_enrollments` (`student_id`);--> statement-breakpoint
+CREATE INDEX `class_schedule_class_idx` ON `class_schedule` (`class_id`);--> statement-breakpoint
+CREATE INDEX `class_schedule_class_day_idx` ON `class_schedule` (`class_id`,`weekday`);--> statement-breakpoint
+CREATE INDEX `classes_teacher_idx` ON `classes` (`teacher_id`);--> statement-breakpoint
+CREATE INDEX `classes_grade_idx` ON `classes` (`grade`);