const { Sequelize,DataTypes }=require('sequelize');const sequelize=new Sequelize('database','username','password');constUser=sequelize.define('User',{ id: {type: DataTypes.INTEGER,primaryKey:true,autoIncrement:true,},username: {type: DataTypes.STRING,allowNull:false,},email: {type: DataTypes....
const sequelize = new Sequelize('database', 'username', 'password'); const User = sequelize.define('User', { id: { type: DataTypes.INTEGER, primaryKey: true, autoIncrement: true, }, username: { type: DataTypes.STRING, allowNull: false, }, email: { type: DataTypes.STRING, allowNull:...
当接收到一个对象时,该对象将用作列的定义,就像在标准的 sequelize.define 调用中所做的一样。因此,指定诸如 type, allowNull, defaultValue 等参数就可以了。 例如,要使用UUID作为外键数据类型而不是默认值(INTEGER),只需执行以下操作: const{ DataTypes } =require("Sequelize"); Foo.hasOne(Bar, {foreignKey...
const{Sequelize,DataTypes}=require('sequelize');constsequelize=newSequelize('database','username','password');constUser=sequelize.define('User',{id:{type:DataTypes.INTEGER,primaryKey:true,autoIncrement:true,},username:{type:DataTypes.STRING,allowNull:false,},email:{type:DataTypes.STRING,allowNull:fa...
Project.belongsToMany(User, { through: UserProjects, uniqueKey:'my_custom_unique'}) 六、基本的涉及关联的查询 了解了定义关联的基础知识之后,我们可以查看涉及关联的查询. 最常见查询是read查询(即 SELECT). 稍后,将展示其他类型的查询. 为了研究这一点,我们将思考一个例子,其中有船和船长,以及它们之间的一...
module.exports=function(sequelize,DataTypes){returnsequelize.define('User',{id:{type:DataTypes.INTEGER,allowNull:false,primaryKey:true,autoIncrement:true},username:{type:DataTypes.STRING(20),allowNull:true},aNumber:{type:DataTypes.SMALLINT,allowNull:true},dateAllowNullTrue:{type:DataTypes.DATE,allow...
sequelize.getQueryInterface().addConstraint("users", { type: "FOREIGN KEY", fields: ["user_rol"], name: "fk_user_rol", // Custom name -> generate CONSTRAINT fk_user_rol references: { table: "rols", field: "rol_id" }, }) *Note: this just add the constraint to the database, ...
Custom settings (version prefix, suffix, schema and more) Supports transaction Usage constSequelize=require('sequelize');constVersion=require('sequelize-version-next');constsequelize=newSequelize(...);constPerson=sequelize.define('Person',...);constPersonVersion=newVersion(Person); ...
This chapter applies only to TypeScript Warning In this article, you'll learn how to create a DatabaseModule based on the Sequelize package from scratch using custom components. As a consequence, this technique contains a lot of overhead that you can avoid by using the dedicated, out-of-the...
不要使用驼峰式语法,用下划线代替 // so updatedAt will be updated_at underscored: true, // 不允许调整表名 ; // 默认地, sequelize 会自动转换所有传递的模型名字(define 的第一个参数) // 为复数 // 如果不想这样,设置为 true freezeTableName: true, // 定义表名 tableName: 'my_very_custom_...