Question

我正在使用sequelize和mysql方言在Nodejs中构建一个应用程序。我可以很好地生成迁移，但是不能运行它们来填充数据库中的表。这是我运行db：migrate时得到的：

Sequelize CLI [Node: 8.9.4, CLI: 4.1.1, ORM: 4.38.1]

Loaded configuration file "config\config.json".
Using environment "development".
sequelize deprecated String based operators are now deprecated. Please use Symbo
l based operators for better security, read more at http://docs.sequelizejs.com/
manual/tutorial/querying.html#operators ..\..\Users\Admin\AppData\Roaming\npm\no
de_modules\sequelize\lib\sequelize.js:242:13

ERROR: connect ETIMEDOUT

我试图在数据库连接中设置 operatorAliases：false ，但是没有运气。

这是我的数据库连接：

'use strict';

var fs        = require('fs');
var path      = require('path');
var Sequelize = require('sequelize');
var basename  = path.basename(__filename);
var env       = process.env.NODE_ENV || 'development';
var config = require(__dirname + '/../config/config.json')[env];
var db        = {};
const Op = Sequelize.Op;

if (config.use_env_variable) {
  var sequelize = new Sequelize(process.env[config.use_env_variable], config,{ operatorsAliases: false });
} else {

  var sequelize = new Sequelize(config.database,
   config.username,
    config.password,

     { 
  operatorsAliases: false,
  host: config.host,
  dialect: config.dialect,
    }
  );


  //check if connection is established
  sequelize
  .authenticate()
  .then(() => {
    console.log('Database Connection has been established successfully.');
  })
  .catch(err => {
    console.error('Unable to connect to the database:', err);
  });
}

fs
  .readdirSync(__dirname)
  .filter(file => {
    return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
  })
  .forEach(file => {
    var model = sequelize['import'](path.join(__dirname, file));
    db[model.name] = model;
  });

Object.keys(db).forEach(modelName => {
  if (db[modelName].associate) {
    db[modelName].associate(db);
  }
});
db.sequelize = sequelize;

module.exports = db;

该应用程序正好连接到数据库。最初我没有这个问题，然后迁移成功。使用ORM从现有表中添加检索记录工作正常。但是我无法运行新迁移来创建新表。

任何解决此问题的建议将不胜感激。我可以说我已经尝试过在线提供的解决方案，但是没有处理我的案件。谢谢。

Answer 1

我通过用false代替布尔属性0解决了这个问题。

Sequelize db：migrate失败，出现sequelize不推荐使用的字符串错误

1 个答案: