Completely fix tradeCattle folder

tradeCattle/add_id_card_field_safe.sql

@@ -0,0 +1,80 @@
+-- =============================================
+-- 数据库迁移脚本：为 member_driver 表添加 id_card 字段
+-- 用途：存储司机身份证前后面照片地址
+-- 创建时间：2025-10-20
+-- 数据库：MySQL
+-- 版本：安全版本（包含错误处理）
+-- =============================================
+
+-- 开始事务
+START TRANSACTION;
+
+-- 检查表是否存在
+SET @table_exists = (
+    SELECT COUNT(*) 
+    FROM INFORMATION_SCHEMA.TABLES 
+    WHERE TABLE_SCHEMA = DATABASE() 
+      AND TABLE_NAME = 'member_driver'
+);
+
+-- 如果表不存在，回滚并退出
+IF @table_exists = 0 THEN
+    ROLLBACK;
+    SELECT 'ERROR: member_driver 表不存在' AS result;
+    LEAVE;
+END IF;
+
+-- 检查字段是否已存在
+SET @column_exists = (
+    SELECT COUNT(*) 
+    FROM INFORMATION_SCHEMA.COLUMNS 
+    WHERE TABLE_SCHEMA = DATABASE() 
+      AND TABLE_NAME = 'member_driver' 
+      AND COLUMN_NAME = 'id_card'
+);
+
+-- 如果字段已存在，回滚并退出
+IF @column_exists > 0 THEN
+    ROLLBACK;
+    SELECT 'WARNING: id_card 字段已存在，无需添加' AS result;
+    LEAVE;
+END IF;
+
+-- 添加 id_card 字段
+ALTER TABLE member_driver 
+ADD COLUMN id_card TEXT COMMENT '身份证前后面照片地址（多个URL用逗号分隔）' 
+AFTER car_img;
+
+-- 验证字段是否添加成功
+SET @verify_result = (
+    SELECT COUNT(*) 
+    FROM INFORMATION_SCHEMA.COLUMNS 
+    WHERE TABLE_SCHEMA = DATABASE() 
+      AND TABLE_NAME = 'member_driver' 
+      AND COLUMN_NAME = 'id_card'
+);
+
+-- 如果验证失败，回滚
+IF @verify_result = 0 THEN
+    ROLLBACK;
+    SELECT 'ERROR: id_card 字段添加失败' AS result;
+    LEAVE;
+END IF;
+
+-- 提交事务
+COMMIT;
+
+-- 显示成功信息
+SELECT 'SUCCESS: id_card 字段添加成功' AS result;
+
+-- 显示字段信息
+SELECT 
+    COLUMN_NAME as '字段名',
+    DATA_TYPE as '数据类型',
+    IS_NULLABLE as '允许空值',
+    COLUMN_DEFAULT as '默认值',
+    COLUMN_COMMENT as '注释'
+FROM INFORMATION_SCHEMA.COLUMNS 
+WHERE TABLE_SCHEMA = DATABASE() 
+  AND TABLE_NAME = 'member_driver' 
+  AND COLUMN_NAME = 'id_card';