在带有 TypeORM 的 NestJS 10 中，如何更新实体的 @OneToOne 成员中的字段？

Question

我正在使用 NestJS 10 和 TypeORM 0.3.17。我已经用 @OneToOne 关系定义了这个实体

@Entity()
export class User {
  @PrimaryGeneratedColumn('uuid')
  id: string;

    ...
  @Column()
  password: string;

  @OneToOne(() => Contact, {
    cascade: true,
    onDelete: 'CASCADE',
    nullable: true,
  })
  @JoinColumn({ name: 'contact_id', referencedColumnName: 'id' })
  contact?: Contact;

}

我已经定义了对应的UpdateUserDto和CreateUserDto...

export class UpdateUserDto extends PartialType(CreateUserDto) {
}

export class CreateUserDto {
  email: string;
  password: string;
  refreshToken: string;
  contact: CreateContactDto;
}

如何创建服务方法来更新联系人对象中的单个字段？我试过这个

export class UsersService {
  constructor(
    private readonly userRepository: UserRepository, // import as usual
  ) {}
    ...
  async update(
    id: string,
    updateUserDto: UpdateUserDto,
  ): Promise<UpdateResult> {
    return this.userRepository.update(id, updateUserDto);
  }

但是当我用参数调用这个方法时

this.usersService.update(userId, {
  contact: {
    firstName: 'Dave',
    lastName: 'Test',
    mailingAddress: {
      addressLine1: '321 oklahoma',
      city: 'Springfield',
      zipCode: '90210',
      region: { id: '123' }
    }
  }
});

由于运行时错误而失败

[ExceptionsHandler] Property "contact.firstName" was not found in "User". Make sure your query is correct.

Answer 1

首先通过ID找到用户：

this. userRepository.findOneBy({id});
if (!user) throw new NotFoundException();

然后创建联系人对象；

const contact = new Contact();
contact.frstName = "Dave";
...

最后，您可以保存关系：

user.contact = contact;
userRepository.save(user);

Answer 2

就我而言，我会这样做：

const user = await User.findOneOrFail({
  where: { id || IsNull() }, //in case of id null and not getting the first row in db
  relations: ['contact'],
});
Object.assign(user.contact, {
  firstName: 'Dave',
  lastName: 'test',
  //...your rest
}); //if the user doesn't have a contact, it will create a new one
await user.save();