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  • sequelize 用于PostgreSQL,MySQL,SQLite和MSSQL的Node.js / io.js ORM

    安装

    Sequelize可通过NPM获得。

    $ npm install --save sequelize
    
    # And one of the following:
    $ npm install --save pg pg-hstore
    $ npm install --save mysql // For both mysql and mariadb dialects
    $ npm install --save sqlite3
    $ npm install --save tedious // MSSQL

    建立连接

    Sequelize将在初始化时设置一个连接池,因此理想情况下只应为每个数据库创建一个实例。

    var sequelize = new Sequelize('database', 'username', 'password', {
      host: 'localhost',
      dialect: 'mysql'|'mariadb'|'sqlite'|'postgres'|'mssql',
    
      pool: {
        max: 5,
        min: 0,
        idle: 10000
      },
    
      // SQLite only
      storage: 'path/to/database.sqlite'
    });
    
    // Or you can simply use a connection uri
    var sequelize = new Sequelize('postgres://user:pass@example.com:5432/dbname');

    你的第一个模型

    模型使用sequelize.define('name', {attributes}, {options})

    var User = sequelize.define('user', {
      firstName: {
        type: Sequelize.STRING,
        field: 'first_name' // Will result in an attribute that is firstName when user facing but first_name in the database
      },
      lastName: {
        type: Sequelize.STRING
      }
    }, {
      freezeTableName: true // Model tableName will be the same as the model name
    });
    
    User.sync({force: true}).then(function () {
      // Table created
      return User.create({
        firstName: 'John',
        lastName: 'Hancock'
      });
    });

    参考链接:https://sequelize.readthedocs.io/en/v3/docs/getting-started/#setting-up-a-connection

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  • 原文地址:https://www.cnblogs.com/yu-hailong/p/8522796.html
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