在typeorm express中多对多更新数据

Question

我尝试了 .save 和 .update 但它会导致错误，--在 的情况下.save it return 错误：重复键的值打破了唯一约束 --in .update如果它 return 错误：“用户”关系的“userId”列不存在

注意：我有 2 个表角色和用户以及关联 user_role

 //Many-to-many relation with user
  @ManyToMany((type) => User, (user) => user.roles)
  users: User[];



//Many-to-many relation with role
  @ManyToMany((type) => Role, {
    cascade: true,
  })
  @JoinTable({
    name: "users_roles",
    joinColumn: { name: "userId", referencedColumnName: "id" },
    inverseJoinColumn: { name: "roleId" }
  })
  roles: Role[];

源代码是： /* 数据示例实体2 = { 用户名：'user8'，密码：'user8'，名字：'test'，姓氏：'tt'，电子邮件：'user8@gmail.com'，公司：18，角色：[ { id: 62 }, { id: 63 } ] } */

  let entity = await this.userRepository.create(data.payload);

            let entity2 = { ...entity, roles: data.payload.selectedRoles }
    
 
            const user = await this.userRepository.save(entity2);
          /*const user = await this.userRepository.update(id, entity2);*/

            //todo we need to serialize the user
            // return only what we need like username , email, ...etc not password!!!!
            return { success: true, user: SanitizeUser(user) };

Answer 1

我确实找到了，然后保存，首先使用 data= this.userRepository.findOne(id) 获取要更新的数据，然后您可以将 userRepository.save(data) 应用于此数据。例如：

const userUpdated = await this.userRepository.findOne(id)
      let dataUpdated = {
        ...userUpdated,
        username: data.payload.username,
        firstname: data.payload.firstname,
        lastname: data.payload.lastname,
        email: data.payload.email,
        company: data.payload.selectedCompany,
        roles: data.payload.selectedRoles
      }

      const user = await this.userRepository.save(dataUpdated);

在typeorm express中多对多更新数据

Update data many-to-many in typeorm express

javascript

express

many-to-many

typeorm

relation