NodeJs报SequelizeDatabaseError Unknown column ‘created_at‘ in ‘field list‘解决方法

Posted 2022-11-04 秋9

现象

    "ret": 0,
    "msg": "获取失败",
    "e": 
        "name": "SequelizeDatabaseError",
        "parent": 
            "code": "ER_BAD_FIELD_ERROR",
            "errno": 1054,
            "sqlState": "42S22",
            "sqlMessage": "Unknown column 'created_at' in 'field list'",
            "sql": "SELECT `id`, `room_id` AS `roomId`, `stu_name` AS `stuName`, `stu_code` AS `stuCode`, `vision_left` AS `visionLeft`, `vision_right` AS `visionRight`, `vision_avg` AS `visionAvg`, `correct_left` AS `correctLeft`, `correct_right` AS `correctRight`, `correct_avg` AS `correctAvg`, `change_yn` AS `changeYn`, `vision_source` AS `visionSource`, `vision_type` AS `visionType`, `created_at` AS `createdAt`, `updated_at` AS `updatedAt` FROM `vision` AS `vision` WHERE `vision`.`room_id` = 1681;"
        ,
        "original": 
            "code": "ER_BAD_FIELD_ERROR",
            "errno": 1054,
            "sqlState": "42S22",
            "sqlMessage": "Unknown column 'created_at' in 'field list'",
            "sql": "SELECT `id`, `room_id` AS `roomId`, `stu_name` AS `stuName`, `stu_code` AS `stuCode`, `vision_left` AS `visionLeft`, `vision_right` AS `visionRight`, `vision_avg` AS `visionAvg`, `correct_left` AS `correctLeft`, `correct_right` AS `correctRight`, `correct_avg` AS `correctAvg`, `change_yn` AS `changeYn`, `vision_source` AS `visionSource`, `vision_type` AS `visionType`, `created_at` AS `createdAt`, `updated_at` AS `updatedAt` FROM `vision` AS `vision` WHERE `vision`.`room_id` = 1681;"
        ,
        "sql": "SELECT `id`, `room_id` AS `roomId`, `stu_name` AS `stuName`, `stu_code` AS `stuCode`, `vision_left` AS `visionLeft`, `vision_right` AS `visionRight`, `vision_avg` AS `visionAvg`, `correct_left` AS `correctLeft`, `correct_right` AS `correctRight`, `correct_avg` AS `correctAvg`, `change_yn` AS `changeYn`, `vision_source` AS `visionSource`, `vision_type` AS `visionType`, `created_at` AS `createdAt`, `updated_at` AS `updatedAt` FROM `vision` AS `vision` WHERE `vision`.`room_id` = 1681;",
        "parameters": 
    

原因：

Nodejs中，在Sequelize创建实例时未设置timestamps参数，timestamps参数含义为是否给每条记录添加createdAt和updatedAt字段，默认为true。通过使此参数为false使其不添加这两个参数即可。

解决方法：

module.exports = app => 
  const  STRING, INTEGER, DATE, BOOLEAN, DOUBLE ,TEXT = app.Sequelize;

  const Vision = app.model.define('vision', 
    id:  type: INTEGER, primaryKey: true, autoIncrement: true ,
    stuName: STRING(32),
    stuCode: STRING(32),
    visionLeft:type: DOUBLE,defaultValue: 0,
    visionRight:type: DOUBLE,defaultValue: 0,
    visionAvg:type: DOUBLE,defaultValue: 0
  ,tableName: 'vision',timestamps: false);
  return Vision;
;