v2.3更新

sql/upgrades/v1.6.sql

@@ -0,0 +1,63 @@
+-- ===========================================
+-- 班级操行分管理系统 - v1.5 → v1.6 升级脚本
+-- 字符集: utf8mb4
+--
+-- 变更内容:
+--   1. subjects 表添加 subject_code 列（科目代码）
+--   2. subjects 表添加 sort_order 列（排序序号）
+--   3. 更新已有科目的 subject_code
+--
+-- 兼容性: 使用存储过程实现幂等，phpMyAdmin 可直接执行
+-- ===========================================
+
+-- 升级步骤 1: subjects 添加 subject_code 列
+DROP PROCEDURE IF EXISTS `upgrade_step`;
+DELIMITER $$
+CREATE PROCEDURE `upgrade_step`()
+BEGIN
+    IF NOT EXISTS (
+        SELECT * FROM INFORMATION_SCHEMA.COLUMNS 
+        WHERE TABLE_SCHEMA = DATABASE() 
+          AND TABLE_NAME = 'subjects' 
+          AND COLUMN_NAME = 'subject_code'
+    ) THEN
+        ALTER TABLE `subjects` 
+        ADD COLUMN `subject_code` VARCHAR(20) DEFAULT NULL COMMENT '科目代码' 
+        AFTER `subject_name`;
+    END IF;
+END$$
+DELIMITER ;
+
+CALL `upgrade_step`();
+DROP PROCEDURE IF EXISTS `upgrade_step`;
+
+-- 升级步骤 2: subjects 添加 sort_order 列
+DROP PROCEDURE IF EXISTS `upgrade_step`;
+DELIMITER $$
+CREATE PROCEDURE `upgrade_step`()
+BEGIN
+    IF NOT EXISTS (
+        SELECT * FROM INFORMATION_SCHEMA.COLUMNS 
+        WHERE TABLE_SCHEMA = DATABASE() 
+          AND TABLE_NAME = 'subjects' 
+          AND COLUMN_NAME = 'sort_order'
+    ) THEN
+        ALTER TABLE `subjects` 
+        ADD COLUMN `sort_order` INT DEFAULT 0 COMMENT '排序序号' 
+        AFTER `is_active`;
+    END IF;
+END$$
+DELIMITER ;
+
+CALL `upgrade_step`();
+DROP PROCEDURE IF EXISTS `upgrade_step`;
+
+-- 升级步骤 3: 更新已有科目的 subject_code
+UPDATE `subjects` SET `subject_code` = 'CHI' WHERE `subject_name` = '语文' AND (`subject_code` IS NULL OR `subject_code` = '');
+UPDATE `subjects` SET `subject_code` = 'MATH' WHERE `subject_name` = '数学' AND (`subject_code` IS NULL OR `subject_code` = '');
+UPDATE `subjects` SET `subject_code` = 'ENG' WHERE `subject_name` = '英语' AND (`subject_code` IS NULL OR `subject_code` = '');
+
+-- 升级步骤 4: 设置默认排序
+UPDATE `subjects` SET `sort_order` = 1 WHERE `subject_name` = '语文' AND `sort_order` = 0;
+UPDATE `subjects` SET `sort_order` = 2 WHERE `subject_name` = '数学' AND `sort_order` = 0;
+UPDATE `subjects` SET `sort_order` = 3 WHERE `subject_name` = '英语' AND `sort_order` = 0;