初始代码

yawei-mes/.sql/2026-01-27_00_周启威_设备维修单修复.sql

@@ -0,0 +1,28 @@
+SET @dbname = DATABASE();
+SET @tablename = 'dm_repair_order_entry';
+SET @columnname = 'item_id';
+ 
+-- 修改 item_id 字段允许为空
+SET @preparedStatement = (SELECT IF(
+  (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = @dbname AND TABLE_NAME = @tablename AND COLUMN_NAME = @columnname) > 0,
+  CONCAT('ALTER TABLE ', @tablename, ' MODIFY COLUMN ', @columnname, ' BIGINT DEFAULT NULL COMMENT ''项目ID（可选）'''),
+  'SELECT 1'
+));
+PREPARE alterIfExists FROM @preparedStatement;
+EXECUTE alterIfExists;
+DEALLOCATE PREPARE alterIfExists;
+
+SET @dbname = DATABASE();
+SET @tablename = 'dm_repair_order_entry';
+SET @columnname = 'item_name';
+
+-- 修改 item_name 字段允许为空（避免保存维修单明细时报 NOT NULL 约束异常）
+SET @preparedStatement = (SELECT IF(
+  (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = @dbname AND TABLE_NAME = @tablename AND COLUMN_NAME = @columnname) > 0,
+  CONCAT('ALTER TABLE ', @tablename, ' MODIFY COLUMN ', @columnname, ' VARCHAR(64) DEFAULT NULL COMMENT ''项目名称（可选）'''),
+  'SELECT 1'
+));
+PREPARE alterIfExists FROM @preparedStatement;
+EXECUTE alterIfExists;
+DEALLOCATE PREPARE alterIfExists;
+