42 lines
1.9 KiB
SQL
42 lines
1.9 KiB
SQL
-- ===========================================
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-- 班级操行分管理系统 - v1.1 → v1.2 升级脚本
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-- 字符集: utf8mb4
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--
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-- 变更内容:
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-- 1. 创建 assignments（作业表）
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-- 2. 创建 homework_submissions（作业提交记录表）
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--
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-- 兼容性: 使用 IF NOT EXISTS 实现幂等，phpMyAdmin 可直接执行
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-- ===========================================
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-- 升级步骤 1: 创建作业表
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CREATE TABLE IF NOT EXISTS `assignments` (
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`assignment_id` INT PRIMARY KEY AUTO_INCREMENT,
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`subject_id` INT NOT NULL,
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`title` VARCHAR(100) NOT NULL,
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`description` TEXT,
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`deadline` DATE NOT NULL,
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`created_by` INT NOT NULL,
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`created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (`subject_id`) REFERENCES `subjects`(`subject_id`),
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FOREIGN KEY (`created_by`) REFERENCES `users`(`user_id`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
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-- 升级步骤 2: 创建作业提交记录表
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CREATE TABLE IF NOT EXISTS `homework_submissions` (
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`submission_id` INT PRIMARY KEY AUTO_INCREMENT,
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`assignment_id` INT NOT NULL,
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`student_id` INT NOT NULL,
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`status` ENUM('submitted', 'not_submitted', 'late') DEFAULT 'not_submitted',
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`submit_time` DATETIME DEFAULT NULL,
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`comments` TEXT,
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`deduction_applied` TINYINT DEFAULT 0,
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`deduction_record_id` BIGINT DEFAULT NULL,
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`updated_by` INT DEFAULT NULL,
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`updated_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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FOREIGN KEY (`assignment_id`) REFERENCES `assignments`(`assignment_id`) ON DELETE CASCADE,
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FOREIGN KEY (`student_id`) REFERENCES `students`(`student_id`) ON DELETE CASCADE,
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FOREIGN KEY (`deduction_record_id`) REFERENCES `conduct_records`(`record_id`) ON DELETE SET NULL,
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UNIQUE KEY `uk_assignment_student` (`assignment_id`, `student_id`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
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