TypeORM @JoinTable() 如何指定自定义连接列？

Question

这是我的示例数据模型

我已经声明了以下类：

@Entity({
  name: 'user'
})
export class User {
  @Column({ type: 'int4' })
  @PrimaryColumn()
  userid: number

  @Column({name: 'name', type: 'varchar', length: 30})
  name: string

  @Column({name: 'age', type: 'int2'})
  age: number

  @ManyToMany(() => Department, (department)=> department.users)
  @JoinTable({
    name: 'department_user'
  })
  departments: Department[]
}

@Entity({ name: 'department' })
export class Department {

  @Column({ type: 'int2' })
  @PrimaryColumn()
  departmentid: number

  @Column({type: 'varchar', length: 50})
  title: string

  @Column({type:'text'})
  notes: string

  @ManyToMany(() => User, (user)=> user.departments)
  @JoinTable({ name: 'department_user' })
  users: User[]  
}

每当我运行该应用程序时，它都会创建 departmentDepartmentId 和 userUserId 列，而不使用相应连接表中的列。如何告诉 typeorm 只使用连接表中预定义的连接列？

Answer 1

您可以指定连接列名和反向连接列名。像这样的东西应该适合你：

@ManyToMany(() => Department, (department)=> department.users)
@JoinTable({ 
    name: 'department_user',
    joinColumn: { name: 'userid' },
    inverseJoinColumn: { name: 'departmentid' }
})
departments: Department[]