Express 打字批量插入？

如何在一个查询中大容量插入多条记录，使我的数据库效率更高 我想创建Office并将多个新设备插入该办公室。 表/型号代码：

办公室

@Entity({ name: 'offices' })
export class Office extends Timestamps {

    @OneToMany(() => Equipment, (equipment: Equipment) => equipment.office, {
        onDelete: 'CASCADE',
        onUpdate: 'CASCADE'
    })
    equipment: Array<Equipment>;
}

我建议您在人际关系中使用财产：

@Entity({ name: 'offices' })
export class Office extends Timestamps {

    @OneToMany(() => Equipment, (equipment: Equipment) => equipment.office, {
        cascade: true, // <= here
        onDelete: 'CASCADE',
        onUpdate: 'CASCADE'
    })
    equipment: Array<Equipment>;
}

或者，如果使用数据映射器方法处理基于以下内容的存储库：

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不知道我要用级联：真的。。酷。但是如何使用wait-Office.create（{equipment:['whatever']}）.save（）；使用存储库？因为我使用TypeORM repository来处理我的数据库内容。基于这个链接[，这很容易做到。我编辑我的答案。

@Entity({ name: 'offices' })
export class Office extends Timestamps {

    @OneToMany(() => Equipment, (equipment: Equipment) => equipment.office, {
        cascade: true, // <= here
        onDelete: 'CASCADE',
        onUpdate: 'CASCADE'
    })
    equipment: Array<Equipment>;
}

await Office.create({equipment: ['whatever']}).save();

const officeRepository = connection.getRepository(Office);
const office = new Office();
const equipment1 = new Equipment(); // and set your properties or make more instances

office.equipment = [equipment1]; // or more instances
await officeRepository.save(office);