Question

我是sails的初学者，我正在尝试使用sails和mysql创建我的第一个API。我尝试在我的mysql控制台中创建表，并将配置配置到configuration.js文件，并尝试在chrome浏览器中从POSTMAN访问API。我从sails服务器得到以下错误。我的查询没有该字段，也不确定这些字段是否为标准字段并在查询中附加，并且不确定如何自动将这些字段创建为表的一部分。

error: Sending 500 ("Server Error") response:
 Error (E_UNKNOWN) :: Encountered an unexpected error
: ER_BAD_FIELD_ERROR: Unknown column 'message.createdAt' in 'field list'
    at Query.Sequence._packetToError (C:\MyApi\node_modules\sails-mysql\node_mod
ules\mysql\lib\protocol\sequences\Sequence.js:48:14)
    at Query.ErrorPacket (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\l
ib\protocol\sequences\Query.js:82:18)
    at Protocol._parsePacket (C:\MyApi\node_modules\sails-mysql\node_modules\mys
ql\lib\protocol\Protocol.js:271:23)
    at Parser.write (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\lib\pr
otocol\Parser.js:77:12)
    at Protocol.write (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\lib\
protocol\Protocol.js:39:16)
    at Socket.<anonymous> (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\
lib\Connection.js:82:28)
    at Socket.emit (events.js:95:17)
    at Socket.<anonymous> (_stream_readable.js:765:14)
    at Socket.emit (events.js:92:17)
    at emitReadable_ (_stream_readable.js:427:10)
    at emitReadable (_stream_readable.js:423:5)
    at readableAddChunk (_stream_readable.js:166:9)
    at Socket.Readable.push (_stream_readable.js:128:10)
    at TCP.onread (net.js:529:21)
    --------------------
    at Protocol._enqueue (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\l
ib\protocol\Protocol.js:135:48)
    at PoolConnection.Connection.query (C:\MyApi\node_modules\sails-mysql\node_m
odules\mysql\lib\Connection.js:185:25)
    at __FIND__ (C:\MyApi\node_modules\sails-mysql\lib\adapter.js:836:20)
    at afterwards (C:\MyApi\node_modules\sails-mysql\lib\connections\spawn.js:84
:5)
    at C:\MyApi\node_modules\sails-mysql\lib\connections\spawn.js:40:7
    at Ping.onPing [as _callback] (C:\MyApi\node_modules\sails-mysql\node_module
s\mysql\lib\Pool.js:94:5)
    at Ping.Sequence.end (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\l
ib\protocol\sequences\Sequence.js:96:24)
    at Ping.Sequence.OkPacket (C:\MyApi\node_modules\sails-mysql\node_modules\my
sql\lib\protocol\sequences\Sequence.js:105:8)
    at Protocol._parsePacket (C:\MyApi\node_modules\sails-mysql\node_modules\mys
ql\lib\protocol\Protocol.js:271:23)
    at Parser.write (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\lib\pr
otocol\Parser.js:77:12)
    at Protocol.write (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\lib\
protocol\Protocol.js:39:16)
    at Socket.<anonymous> (C:\MyApi\node_modules\sails-mysql\node_modules\mysql\
lib\Connection.js:82:28)
    at Socket.emit (events.js:95:17)
    at Socket.<anonymous> (_stream_readable.js:765:14)
    at Socket.emit (events.js:92:17)
    at emitReadable_ (_stream_readable.js:427:10)

Details:  Error: ER_BAD_FIELD_ERROR: Unknown column 'message.createdAt' in 'fiel
d list'

但是我收到了上述错误，下面是我的表格。

mysql> desc message
    -> ;
+-------+-------------+------+-----+---------+----------------+
| Field | Type        | Null | Key | Default | Extra          |
+-------+-------------+------+-----+---------+----------------+
| name  | varchar(20) | YES  |     | NULL    |                |
| id    | int(4)      | NO   | PRI | NULL    | auto_increment |
+-------+-------------+------+-----+---------+----------------+
2 rows in set (0.03 sec)

我在下面作为模型message.js中的代码

module.exports = {
connection: 'someMysqlServer',
  attributes: {
        name: { type: 'string',
                 required: true}

  }
};

Answer 1

似乎您可能在该连接上设置migrate: safe，这意味着Sails无法更改您创建的MySQL表。这很好，除了Sails查询包括迁移器通常添加的createdAt和updatedAt字段。您可以手动将这些列添加到表中（使用datetime类型），也可以将以下内容添加到模型配置中：

autoCreatedAt: false,
autoUpdatedAt: false

有关这些字段的更多信息in the docs。

Answer 2

当升力航行时，它会提示输入数字1作为安全2进行实验，就像那样......选择2它会起作用。为我工作..

Sails API获取错误（500）ER_BAD_FIELD_ERROR

2 个答案: