Question

我正在使用“ sequelize-i18n”来支持多语言。我正在使用带有nodeJS的sequelize，并找到了一个i18n软件包来使用sequelize。

我遵循了文档，但是每次下面出现错误时。

  Unhandled rejection SequelizeDatabaseError: Can't create table `dev_****`.`product_i18ns` (errno: 150 "Foreign key constraint is incorrectly formed")
    at Query.formatError (C:\Users\****\learnings\node\****-acl\node_modules\sequelize\lib\dialects\mysql\query.js:247:16)
    at Query.handler [as onResult] (C:\Users\****\learnings\node\****-acl\node_modules\sequelize\lib\dialects\mysql\query.js:68:23)
    at Query.Command.execute (C:\Users\****\learnings\node\****-acl\node_modules\mysql2\lib\commands\command.js:30:12)
    at Connection.handlePacket (C:\Users\****\learnings\node\****-acl\node_modules\mysql2\lib\connection.js:502:28)
    at PacketParser.onPacket (C:\Users\****\learnings\node\****-acl\node_modules\mysql2\lib\connection.js:81:16)
    at PacketParser.executeStart (C:\Users\****\learnings\node\****-acl\node_modules\mysql2\lib\packet_parser.js:77:14)
    at Socket.<anonymous> (C:\Users\****\learnings\node\****-acl\node_modules\mysql2\lib\connection.js:89:29)
    at Socket.emit (events.js:182:13)
    at addChunk (_stream_readable.js:283:12)
    at readableAddChunk (_stream_readable.js:264:11)
    at Socket.Readable.push (_stream_readable.js:219:10)
    at TCP.onread (net.js:638:20)

我的产品型号代码如下。

 'use strict';
module.exports = (sequelize, DataTypes) => {
  var Product = sequelize.define('Product', {
    id : {
      type          : DataTypes.BIGINT,
      primaryKey        : true,
      autoIncrement     : true
  },
    firstName: {

      type: DataTypes.STRING,
      i18n: true

    },
    lastName: DataTypes.STRING,
    email: DataTypes.STRING
  }, {});

  return Product;
};

下面是我的服务器文件代码，用于初始化i18n

    'use strict';

var fs = require('fs');
var path = require('path');
var Acl = require('acl');
var session = require('express-session');
var Sequelize = require('sequelize');

var SequelizeI18N = require('sequelize-i18n');

var AclSeq = require('acl-sequelize');
var basename = path.basename(__filename);
var env = process.env.NODE_ENV || 'development';
// var config    = require(__dirname + '/..\config\config.json')[env];
var config = require('./../config/config.json')[env];
var db = {};

var languages = { 
  list : ["EN" , "FR" , "ES"] , 
  default : "EN" 
};

if (config.use_env_variable) {
  var sequelize = new Sequelize(process.env[config.use_env_variable], config);
} else {
  var sequelize = new Sequelize(config.database, config.username, config.password, config);
}

var acl = new Acl(new AclSeq(sequelize, { prefix: 'acl_' }));


// Init i18n
var i18n = new SequelizeI18N( sequelize, { languages: languages.list, default_language: languages.default } );
i18n.init();
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;
db.Sequelize = Sequelize;

module.exports = db;

请帮帮我，这是包装问题吗，因为该包装不太受欢迎。

Answer 1

我花了几个小时后自己找到了解决方案，可能对其他人有帮助。问题是dataType不匹配

在我的模型中，我将ID类型创建为BIGINT

id : {
      type : DataTypes.BIGINT}

但是，当我签入phpmyadmin时，它仅是INT（11）。这是问题所在。所以我不得不将dataType更改为BIGINT，并且运行良好。

Sequelize i18n：错误号：150“外键约束格式不正确”）

1 个答案: