Sails.JS + MySQL：“where 子句”中的未知列“NaN”

Question

这是我第一次将sails.js 与mySQL 数据库一起使用，我对这个错误感到非常困惑。

我有一个名为“公司”的控制器和模型。它与 mySQL 数据库中的表“公司”有关。该表本身与名为“模块”和“用户”的两个表具有一对多关联（每个用户/模块必须与一个公司 ID 连接）。我已经在 MySQL 数据库中设置了外键。

问题是..每次我从这个控制器打开任何页面/动作时，都会出现这个错误：

    error: Sending 500 ("Server Error") response: 
 Error (E_UNKNOWN) :: Encountered an unexpected error
: ER_BAD_FIELD_ERROR: Unknown column 'NaN' in 'where clause'
    at Query.Sequence._packetToError (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/sequences/Sequence.js:30:14)
    at Query.ErrorPacket (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/sequences/Query.js:82:18)
    at Protocol._parsePacket (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/Protocol.js:213:24)
    at Parser.write (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/Parser.js:62:12)
    at Protocol.write (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/Protocol.js:37:16)
    at Socket.<anonymous> (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/Connection.js:75:28)
    at Socket.emit (events.js:95:17)
    at Socket.<anonymous> (_stream_readable.js:764:14)
    at Socket.emit (events.js:92:17)
    at emitReadable_ (_stream_readable.js:426:10)
    --------------------
    at Protocol._enqueue (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/Protocol.js:110:48)


    at PoolConnection.Connection.query (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/Connection.js:166:25)
    at PoolConnection.liveConnection.query (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/lib/connections/spawn.js:98:16)
    at __FIND__ (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/lib/adapter.js:836:20)
    at afterwards (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/lib/connections/spawn.js:104:5)
    at /Users/alanyudh/Sites/matta/node_modules/sails-mysql/lib/connections/spawn.js:40:7
    at Pool.<anonymous> (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/Pool.js:51:14)
    at Handshake.Sequence.end (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/sequences/Sequence.js:78:24)
    at Handshake.Sequence.OkPacket (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/sequences/Sequence.js:87:8)
    at Protocol._parsePacket (/Users/alanyudh/Sites/matta/node_modules/sails-mysql/node_modules/mysql/lib/protocol/Protocol.js:213:24)

Details:  Error: ER_BAD_FIELD_ERROR: Unknown column 'NaN' in 'where clause'

这是我公司的模型：

    module.exports = {
  attributes: {
      name:{
        type:"string",
        required:true,
        unique:true,
        minLength: 2
      },
      type:{
        type:"string",
        enum: ['hq','sub'],
        defaultsTo: 'hq'
      },     
      desc:{
        type:"text",
        required:true
      },
      logo: {
        type: 'string'
      },
      address: {
        type: 'text'
      },
      city: {
        type: 'string'
      },
      region: {
        type: 'string'
      },
      country: {
        type: 'string'
      },
      zipcode: {
        type: 'string'
      },
      phone_number: {
        type: 'string'
      },
      website: {
        type: 'string'
      }
  },
};

我曾尝试使用“autoPK: false”、“schema: true”、添加“columnName/fieldName”，但它们都不起作用。

错误是什么意思？我如何解决它？

非常感谢。

Answer 1

打开 localhost:1337/company/index 是您的问题，而不是任何 mysql 或其他 orm 问题！

这是一个路由配置探针。当您打开此 URL 时，默认的风帆行为是您尝试通过默认的 REST api 访问特定的公司记录。检查默认的休息路线行为。

为了在您的情况下更明确，sails 解释您正在查询具有 id “index”的特定公司，该公司不是数字，NaN因此您会收到此错误。

RESTful 路由，其中​​路径始终为 /:modelIdentity 或/:modelIdentity/:id。