Sequelize - 基于特定属性包含

Question

我有一个模型定义如下：

sequelize.define('game', {
    id: {
        type: type.INTEGER,
        primaryKey: true,
        autoIncrement: true,
    },
    leaderId: {
        type: type.INTEGER,
        allowNull: false,
        references: {
            model: 'users',
            key: 'id',
        },
    },
    playerId: {
        type: type.INTEGER,
        allowNull: false,
        references: {
            model: 'users',
            key: 'id',
        },
    },
    status: {
        type: type.STRING,
        defaultValue: 'running',
    },
    notes: {
        type: type.TEXT,
    },
});

我正在尝试使用 Sequelize 加载所有 game 对象并包含 ID 等于 playerId 字段的 User。

问题是我有两个属性（leaderId、playerId）引用了 User 模型，因此按如下方式使用 include 不起作用：

Game.findAll({
    where: conditions,
    include: [{ model: User }],
})

有没有办法指定 include 命令应该使用哪个属性？

Answer 1

const game = sequelize.define('game', {
    id: {
        type: type.INTEGER,
        primaryKey: true,
        autoIncrement: true,
    },
    leaderId: {
        type: type.INTEGER,
        allowNull: false,
        references: {
            model: 'users',
            key: 'id',
        },
    },
    playerId: {
        type: type.INTEGER,
        allowNull: false,
        references: {
            model: 'users',
            key: 'id',
        },
        as:'player'
    },
    status: {
        type: type.STRING,
        defaultValue: 'running',
    },
    notes: {
        type: type.TEXT,
    },
});

game.associate = function (models) {
   game.belongsTo(models.user, {
      foreignKey: "playerId",
      as: "player",
   });

   game.belongsTo(models.user, {
      foreignKey: "leaderId",
      as: "leader",
   });
};

Game.findAll({
    where: conditions,
    include: ['player'],
})

Or

Game.findAll({
    where: conditions,
    include: [{model: User, as: 'player' }],
})

Or

Game.findAll({
    where: conditions,
    include: [{model: User, as: 'player', foreignKey: 'playerId' }],
})

https://github.com/nkhs/node-sequelize

Sequelize - 基于特定属性包含

Sequelize - Include based on specific attribute

javascript

sql

postgresql

node.js

sequelize.js