Question

问题：

想象一下，我有两个关联的模型，Library 有很多 Book s：

var Library = sequelize.define('Library', {
    title: Sequelize.STRING,
    description: Sequelize.TEXT,
    address: Sequelize.STRING
});
var Book = sequelize.define('Book', {
    title: Sequelize.STRING,
    description: Sequelize.TEXT,
    publish_date: Sequelize.DATE
});
Library.hasMany(Book);

现在，为了创建Library和单个关联的Book，我这样做：

Library.create({
    name: 'Roan Library',
    address: '123 Any St'
}).then(function (library) {
    Book.create({
        title: 'Reading with Time',
        description: 'A fun jaunt in reading',
        libraryId: library.id
    });
});

问题：

是否可以一次性创建Library和Book个实例 - 进行单create()次呼叫？

类似的东西（更像是伪代码）：

Library.create({
    name: 'Roan Library',
    address: '123 Any St',
    books: [
        {
            title: 'Reading with Time',
            description: 'A fun jaunt in reading',
            libraryId: library.id
        }
    ]
});

Answer 1

您可以通过将include选项添加到create参数来实现所需的行为，如下所示：

Library.create({
    name: 'Roan Library',
    address: '123 Any St',
    Books: [
        {
            title: 'Reading with Time',
            description: 'A fun jaunt in reading'
        }
    ]
}, {
    include : [Book]
});

一次创建记录和相关记录

1 个答案: