用 sqlite3 续集不会创建数据库

Posted 2023-03-07

【中文标题】用 sqlite3 续集不会创建数据库

【英文标题】：Sequelize with sqlite3 doesn't create a database

【发布时间】：2019-01-17 04:14:06

【问题描述】：

你能帮我解决这个问题吗？ 我将 sqlite3 与 sequelize npm 包一起使用。运行迁移后，我在控制台中看不到错误，但也看不到任何数据库文件。我也可以一次又一次地运行迁移，它看起来不像是正确的行为。 这是我的 /config/config.js 文件：

const path = require('path');

module.exports = 
    test: 
        username: 'root',
        password: 'root',
        database: path.join(__dirname, '..', 'database_test.sqlite'),
        host: 'localhost',
        dialect: 'sqlite',
        logging: console.log,
        operatorsAliases: false
    
;

这是 migrations/XXXXXXXXXXXXXX-create-appeal.js 文件：

'use strict';

module.exports = 
    up: (queryInterface, Sequelize) => queryInterface.createTable('appeals', 
        appealId: 
            allowNull: false,
            primaryKey: true,
            type: Sequelize.UUID
        ,
        name: 
            allowNull: false,
            type: Sequelize.STRING
        ,
        description: 
            type: Sequelize.STRING(511)
        ,
        createdAt: 
            allowNull: false,
            type: Sequelize.DATE
        ,
        updatedAt: 
            allowNull: false,
            type: Sequelize.DATE
        
    ),
    down: queryInterface => queryInterface.dropTable('appeals')
;

这里是 models/index.js 文件

const fs = require('fs');
const path = require('path');
const Sequelize = require('sequelize');
const basename = path.basename(__filename);
const env = process.env.NODE_ENV || 'development';
const config = require(path.join(__dirname, '..', 'config', 'config.js'))[env];
const db = ;

let sequelize = new Sequelize(config.database, config.username, config.password, config);

fs
    .readdirSync(__dirname)
    .filter(file => (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js'))
    .forEach(file => 
        const 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;

这是 models/appeal.js 文件：

'use strict';

module.exports = (sequelize, DataTypes) => 
    const Appeal = sequelize.define('appeals', 
        appealId: 
            allowNull: false,
            defaultValue: DataTypes.UUIDV4,
            primaryKey: true,
            type: DataTypes.UUID,
            validate: 
                isUUID: 4
            ,
            get() 
                return this.getDataValue('appealId').toLowerCase();
            
        ,
        name: 
            type: DataTypes.STRING,
            allowNull: false
        ,
        description: 
            type: DataTypes.STRING(511)
        
    , 
        tableName: 'appeals'
    );
    Appeal.associate = models => 
        // associations can be defined here
    ;
    return Appeal;
;

另一个奇怪的事情：如果我把控制台日志或错误抛出 models/index.js，我什么都看不到，所以 nodejs 不执行文件。

谢谢。

【参考方案1】：

我找到了一个原因：在配置中应该是storage而不是database：

const path = require('path');

module.exports = 
    test: 
        username: 'root',
        password: 'root',
        storage: path.join(__dirname, '..', 'database_test.sqlite'),
        host: 'localhost',
        dialect: 'sqlite',
        logging: console.log
    
;

【参考方案2】：

试试看：

./config.js

const path = require('path');

module.exports = 
    development: 
        username: 'root',
        password: 'root',
        database: path.join(__dirname, '..', 'database_test.sqlite'),
        host: 'localhost',
        dialect: 'sqlite',
        logging: true,
        operatorsAliases: false
    
;

.sequelizerc

const path = require('path');

module.exports = 
    'models-path': path.resolve('./models'),
    'seeders-path': path.resolve('./seeders'),
    'migrations-path': path.resolve('./migrations'),
     'config': path.resolve('./config', 'config.js')
;