Question

我正在使用Nodejs，Sequelize。这是我的用户模型的结构：

"use strict";

module.exports = function(sequelize, DataTypes) {
  var User = sequelize.define('user', { 
    first_name: {
      type: DataTypes.STRING,
      allowNull: false,
    },
    last_name: {
      type: DataTypes.STRING,
      allowNull: false,
    },
    email: {
      type: DataTypes.STRING,
      allowNull: false,
      unique: true,
      validate: {
        isUnique: function (email, done) {
            User.find({ where: { email: email }})
                .done(function (err, user) {
                    if (err) {
                        done(err);
                    }
                    if (user) {
                        done(new Error('Email already registered'));
                    }
                    done();
                });
        }
    }
    },
    profile_image_path: {
      type: DataTypes.STRING,
      allowNull: true,
    },
    active_flag: {
      type: DataTypes.BOOLEAN,
      allowNull: true,
      defaultValue: true
    },
    delete_flag: {
      type: DataTypes.BOOLEAN,
      allowNull: true,
      defaultValue: false
    }
  }, {
    classMethods: {
      associate: function(models) {
        User.hasMany(models.account),
        User.hasMany(models.user_has_contact)
      }
    }
  });
  return User;
};

默认情况下会创建3列：

ID
createdAt
updatedAt

我不想要createdAt＆amp; updatedAt采用此格式，我想要的是created_at和updated_at。如何更改这些默认列名???

我有另一张表user_has_contact，其关系如下：

{
    classMethods: {
      associate: function(models) {
        UserHasContact.belongsTo(models.user)
      }
    }
  }

它会自动创建userId字段，但我又希望它为user_id。任何建议将不胜感激！

Answer 1

您可以通过在配置中添加此设置进行全局操作，如下所示

 var config=  {
     "define": {
          "underscored": true
        }
    }

  var Sequelize = require("sequelize");
  var sequelize = new Sequelize(database, username, password, config);

Answer 2

sequelize.define('user', ..., {
  createdAt: 'created_at',
  updatedAt: 'updated_at',
});

http://docs.sequelizejs.com/manual/tutorial/models-definition.html#configuration

UserHasContact.belongsTo(models.user, { foreignKey: 'user_id' })

http://docs.sequelizejs.com/en/latest/docs/associations/#foreign-keys

Answer 3

     var config=  {
     "define": {
          "underscored": true
        }
    }
var Sequelize = require("sequelize");
var sequelize = new Sequelize(database, username, password, config);

ashwini jindal 的这段代码为我工作

更改默认列名称sequelize

3 个答案: