NestJs使用连接表更新多对多关系

我有两个实体 - 财产和所有者。一处房产可以有很多业主，业主也可以有很多房产。对于连接，请使用 property_owner 表。如何使用 NestJS/TypeORM 更新这种多对多关系？

@Entity('property')
export class Property extends EntityModel {

    @Column({ length: 255, nullable: false })
    name: string;

    @ManyToMany(type => Owner, { cascade: true })
    @JoinTable({
        name: 'property_owner',
        joinColumn: { name: 'propertyId', referencedColumnName: 'id'},
        inverseJoinColumn: { name: 'ownerId', referencedColumnName: 'id'},
    })
    owners: Owner[];
}


@Entity('owner')
export class Owner extends EntityModel {

    @Column({ length: 255, nullable: false })
    name: string;

    @ManyToMany(type => Property, { cascade: true })
    @JoinTable({
        name: 'property_owner',
        joinColumn: { name: 'ownerId', referencedColumnName: 'id'},
        inverseJoinColumn: { name: 'propertyId', referencedColumnName: 'id'},
    })
    properties: Property[];
}

下面是我的服务的保存和更新方法：

public create(req: Request): Promise<Dto> {
    const dto: CreateDto = {
      ...req.body,
      owners: this.formatJoinData(req.body.owners) //[1,2,3] => [{id:1},{id:2},{id:3}]
    };

    const entity = Object.assign(new Entity(), dto);
    return this.repo.save(entity);
  }

  public update(req: Request): Promise<UpdateResult> {
    const dto: EditDto = {
      ...req.body,
      owners: this.formatJoinData(req.body.owners) //[1,2,3] => [{id:1},{id:2},{id:3}]
    };

    const id = req.params.id;
    const entity = Object.assign(new Entity(), dto);
    return this.repo.update(id, entity);
  }

保存新属性工作正常，但是当我尝试更新属性时出现错误

 [ExceptionsHandler] column "propertyId" of relation "property" does not exist

两种情况下的所有者数据均类似于 [{id:1},{id:2},{id:3}]。我认为保存/更新方法会出现问题。 Save方法返回给我们带有id的Entity，update方法返回给我们不包含Entity id的UpdateResult。但也许我们可以在某处转换/另外定义这个值......

我找到了解决方案。需要调用 save 方法而不是 update 。 就我而言，更新看起来像

import {plainToClass} from 'class-transformer';

public async update(req: Request): Promise<Dto> {

    const found = await this.repo.findOneOrFail(req.params.id, {
                    relations: ['owners', 'electricMeter'],
                  });

    const dto = {
      ...found,
      ...req.body,
      owners: this.formatJoinData(req.body.owners) //[1,2,3] => [{id:1},{id:2},{id:3}]
      updatedBy: this.getUser(req),
      updatedDate: Date.now(),
    };

    return this.repo.save(plainToClass(Entity, dto));
  }

这段代码可以改进，但认为主要思想是明确的。