javascript - 一次性创建记录和关联记录

Question

问题:

假设我有两个关联模型，Library，有很多 Book:

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，为了创建一个Library 和一个关联的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一个Library和一个Book实例——在单个create()调用?

类似(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

您可以通过向创建参数添加 include 选项来实现您想要的行为，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]
});