Feathers 和 Sequelize SQL 服务器错误

Feathers and Sequelize SQL Server Errors

我 运行 遇到几个 sql 服务器错误,试图开始使用 feathers js 和 sequelize 进行简单的休息 api。我正在使用 SQL Server 2012 (express) 版本。

首先是我的代码:

const { db } = require('../database');
const Sequelize = require('sequelize');
const service = require('feathers-sequelize');
const app = require('../app');

const Model = db.define('workorder', {
  id: { type: Sequelize.INTEGER, primaryKey: true },
  created_by: Sequelize.STRING,
  modified_by: Sequelize.STRING,

  status_name: Sequelize.STRING,
  date_completed: Sequelize.DATE,
  category: Sequelize.STRING,
  location: Sequelize.STRING,
  details: Sequelize.TEXT,
  crew_name: Sequelize.STRING,
  assigned_to: Sequelize.STRING,
}, {
  schema: 'dbo',
  freezeTableName: true,
  createdAt: 'date_created',
  updatedAt: 'date_modified',
});

app.use('/api/workorders', service({
  Model,
  id: 'id',
  paginate: {
    default: 10,
    max: 100,
  },
}));

当我点击 api 端点时 /api/workorders 它出错了:

SequelizeDatabaseError:FETCH 语句中选项 NEXT 的使用无效。

我看到 sql 生成了:

 Executing (default): SELECT [id], [created_by], [modified_by], [status_name], [date_completed], [category], [location], [details], [crew_name], [assigned_to], [date_created], [date_modified] FROM [dbo].[workorder] AS [workorder] OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY;

似乎 sql 服务器需要一些 ORDER BY 子句。所以我尝试将参数发送到端点 /api/workorders?$sort=id

这也出错了:

SequelizeDatabaseError: 列名称“1”无效。

生成的SQL看起来像这样:

Executing (default): SELECT [id], [created_by], [modified_by], [status_name], [date_completed], [category], [location], [details], [crew_name], [assigned_to], [date_created], [date_modified] FROM [dbo].[workorder] AS [workorder] ORDER BY [workorder].[0] DESC, [workorder].[1] DESC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY;

这个错误比较明显,没有第1列或第0列。

有没有人运行以前遇到过这些问题?

这似乎是 Sequelize 与旧版本的 MSSQL 服务器不兼容,如 this issue. A Feathers specific solution mentioned in this issue comment 中提到的那样添加 $sort$limit

query: {
        $limit: 5,
        $sort: {createdAt: -1}
      }

正如 Daff 所提到的,我也发现对于 SQL Server 2014,Sequelize 仍然没有生成 MSSQL 2014 兼容代码。因此,鉴于建议 here 指定 MSSQL 低于 11.0.0 的版本,我指定了有点武断的数据库版本 10.0.0。

这对我有用 - Sequelize 现在生成 2014(及更早版本)兼容的 tsql 代码。我在从 feathers-cli 生成的 'sequelize.js' 文件中生成 Sequelize 实例时,对传递的选项对象中的 databaseVersion 属性 进行了更改,如下所示:

const sequelize = new Sequelize(database, username, password, {
  dialect: 'mssql',
  host: hostname,
  logging: console.log,
  define: {
    freezeTableName: true
  },
  // from https://github.com/sequelize/sequelize/issues/4404
  // use earlier SQL Server version to assure tsql compatible code generation
  databaseVersion: '10.0.0' 
});