缺少事务可能出现数据不一致风险 (#1575)

Co-authored-by: zongqiang <zongq@rp-pet.cn>

server/service/system/sys_user.go

@@ -148,13 +148,15 @@ func (userService *UserService) SetUserAuthorities(id uint, authorityIds []uint)
 //@return: err error
 
 func (userService *UserService) DeleteUser(id int) (err error) {
-	var user system.SysUser
-	err = global.GVA_DB.Where("id = ?", id).Delete(&user).Error
-	if err != nil {
-		return err
-	}
-	err = global.GVA_DB.Delete(&[]system.SysUserAuthority{}, "sys_user_id = ?", id).Error
-	return err
+	return global.GVA_DB.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Where("id = ?", id).Delete(&system.SysUser{}).Error; err != nil {
+			return err
+		}
+		if err := tx.Delete(&[]system.SysUserAuthority{}, "sys_user_id = ?", id).Error; err != nil {
+			return err
+		}
+		return nil
+	})
 }
 
 //@author: [piexlmax](https://github.com/piexlmax)