options.define={} 预先定义的model options.logging=console.log Function 用于Sequelize日志打印的函数 options.pool={} 对数据库连接池的配置 3: api 定义模型以及原始查询 sequelize.models: 获取在创建连接时,预先定义的model模型 sequelize.define(): 定义model define(modelName, attributes, [options]) -> Mo...
在sequelize中,当你在model间创建关联关系的时候,将会自动添加带约束条件的外键(foreign key)引用,如下所示: classTaskextendsModel{}Task.init({title:Sequelize.STRING},{sequelize,modelName:'task'});classUserextendsModel{}User.init({username:Sequelize.STRING},{sequelize,modelName:'user'});User.hasMany(...
Is it possible to construct the following in Sequelize model syntax? The use being you want to have nested data. CREATE TABLE Data ( `id` INT AUTO_INCREMENT PRIMARY KEY, ... `parentId` INT, FOREIGN KEY(parentId) REFERENCES Data(id) ); EDIT: Yes it is const Data = sequelize.de...
options.port 连接数据库的端口 options.define={} 预先定义的model options.logging=console.log Function 用于Sequelize日志打印的函数 options.pool={} 对数据库连接池的配置 3: api 定义模型以及原始查询 sequelize.models: 获取在创建连接时,预先定义的model模型 sequelize.define(): 定义model define(modelName, ...
key:'id'} } }, {//disable the modificationoftablenames;Bydefault, sequelize will automatically//transformallpassed model names (firstparameterofdefine)intoplural.//if you don't want that, set the following freezeTableName: true, tableName: 'segment' ...
BelongsTo 关联是在source model上存在一对一关系的外键的关联。 一个简单的例子是Player通过 player 的外键作为Team的一部分。 代码语言:javascript 复制 constPlayer=this.sequelize.define('player',{/* attributes */});constTeam=this.sequelize.define('team',{/* attributes */});Player.belongsTo(Team);...
//foreign key usage attr4: { type: Sequelize.INTEGER, references: { model: 'another_table_name', key: 'id' }, onUpdate: 'cascade', onDelete: 'cascade' } }, { engine: 'MYISAM', // default: 'InnoDB' charset: 'latin1' // default: null ...
model: Actor,//'Actors' 也可以使用key:'id'} } }); Movie.belongsToMany(Actor, { through:'ActorMovies'}); Actor.belongsToMany(Movie, { through:'ActorMovies'}); 上面的代码在 PostgreSQL 中产生了以下 SQL,与上面所示的代码等效: CREATE TABLE IF NOT EXISTS"ActorMovies"("MovieId"INTEGER NOT ...
modelName: "users", freezeTableName: true, timestamps: false, } ); Run Code Online (Sandbox Code Playgroud) 通过queryInterface添加外键(自定义外键名称):sequelize.getQueryInterface().addConstraint("users", { type: "FOREIGN KEY", fields: ["user_rol"], name: "fk_user_rol", // Custom ...
constMovie = sequelize.define('Movie', {name: DataTypes.STRING });constActor = sequelize.define('Actor', {name: DataTypes.STRING });constActorMovies = sequelize.define('ActorMovies', {MovieId: {type: DataTypes.INTEGER,references: {model: Movie,// 'Movies' 也可以使用key:'id'} ...