Sql server 在MS SQL下使用关联进行迁移时出现的问题

在MS SQL下运行时出现问题：

sequelize db:migrate

。 我有一个

联系人

型号，属于其他两个型号。因此，我将其添加到

contact.associate=function（models）

函数中：

contact.belongsTo(models.job)
contact.belongsTo(models.customer)

联系人模型的迁移如下所示：

 id: {
    allowNull: false,
    autoIncrement: true,
    primaryKey: true,
    type: Sequelize.INTEGER
  },
...
jobId: {
    type: Sequelize.INTEGER,
    references: {
      model: "jobs",
      key: "id"
    }
  },
customerId: {
    type: Sequelize.INTEGER,
    references: {
      model: "customers",
      key: "id"
    }
  },

我试图与

联系人

模型关联的模型命名为：

作业

和

客户

，它们的表：

作业

和

客户

使用

--debug

标志运行时出现的错误：

== 20181201143147-create-productionstep: migrating =======
ERROR: SequelizeDatabaseError: Could not create constraint or index. See         
previous errors.
at Query.formatError (C:\Users\Jan\Documents\navigatemNode\node_modules\sequelize\lib\dialects\mssql\query.js:315:12)
at Request.connection.lib.Request [as userCallback] (C:\Users\Jan\Documents\navigatemNode\node_modules\sequelize\lib\dialects\mssql\query.js:107:25)
at Request._this.callback (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\request.js:60:27)
at Connection.endOfMessageMarkerReceived (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\connection.js:1922:20)
at Connection.dispatchEvent (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\connection.js:1004:38)
at Parser.<anonymous> (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\connection.js:805:18)
at emitOne (events.js:116:13)
at Parser.emit (events.js:211:7)
at Parser.<anonymous> (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\token\token-stream-parser.js:54:15)
at emitOne (events.js:116:13)
at Parser.emit (events.js:211:7)
at addChunk (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_readable.js:291:12)
at readableAddChunk (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_readable.js:278:11)
at Parser.Readable.push (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_readable.js:245:10)
at Parser.Transform.push (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_transform.js:148:32)
at Parser.afterTransform (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_transform.js:91:10)
at Parser._transform (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\token\stream-parser.js:69:9)
at Parser.Transform._read (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_transform.js:184:10)
at Parser.Transform._write (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_transform.js:172:83)
at doWrite (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_writable.js:428:64)
at writeOrBuffer (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_writable.js:417:5)
at Parser.Writable.write (C:\Users\Jan\Documents\navigatemNode\node_modules\readable-stream\lib\_stream_writable.js:334:11)
at Parser.addEndOfMessageMarker (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\token\token-stream-parser.js:80:26)
at Connection.message (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\connection.js:1913:32)
at Connection.dispatchEvent (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\connection.js:1004:38)
at MessageIO.<anonymous> (C:\Users\Jan\Documents\navigatemNode\node_modules\tedious\lib\connection.js:884:18)
at emitNone (events.js:106:13)
at MessageIO.emit (events.js:208:7)

没有记录以前的错误

我已经检查了

客户

和

作业

表的主键是否命名为

id

，并且这些表是从1月开始在数据库中创建的

编辑：我已经注释掉了

jobId

和

customerId

对象，然后它迁移，一旦撤消，我尝试只添加一个，但再次失败，出现相同的错误

好的， 通过为外键创建单独的迁移，我成功地解决了这个问题：

  up: (queryInterface, Sequelize) => {
return queryInterface.addColumn(
  'contacts',
  'jobId',
  {
    type: Sequelize.INTEGER,
    references: {
      model: "jobs",
      key: "id"
    },
    onDelete: 'SET NULL'
  },
)
  .then(() => {
    return queryInterface.addColumn(
      'contacts',
      'customerId',
      {
        type: Sequelize.INTEGER,
        references: {
          model: "customers",
          key: "id"
        },
        onDelete: 'SET NULL'
      }
    )
  })
},

down: (queryInterface, Sequelize) => {
return queryInterface.removeColumn(
  'contacts',
  'jobId',
)
  .then(() => {
    return queryInterface.removeColumn(
      'contacts',
      'customerId',
    )
  })
}

---

删除ms sql中的sequelize元文件并重新运行迁移

  up: (queryInterface, Sequelize) => {
return queryInterface.addColumn(
  'contacts',
  'jobId',
  {
    type: Sequelize.INTEGER,
    references: {
      model: "jobs",
      key: "id"
    },
    onDelete: 'SET NULL'
  },
)
  .then(() => {
    return queryInterface.addColumn(
      'contacts',
      'customerId',
      {
        type: Sequelize.INTEGER,
        references: {
          model: "customers",
          key: "id"
        },
        onDelete: 'SET NULL'
      }
    )
  })
},

down: (queryInterface, Sequelize) => {
return queryInterface.removeColumn(
  'contacts',
  'jobId',
)
  .then(() => {
    return queryInterface.removeColumn(
      'contacts',
      'customerId',
    )
  })
}