如何在从symfony2 php中的抽象类扩展而来的Doctrine Entity中使用dicriminator映射 - HOw to use dicriminator map in Doctrine Entity extended from abstract class in symfony2 php

HOw to use dicriminator map in Doctrine Entity extended from abstract class in symfony2 php

我有这个结构

`UserInterface.php`
 abstract class User implements UserInterfacee in model`
`class student extends user.php`
`class teacher extends user.php`

现在我应该在哪一类中使用这个条令代码

/**
 * @Entity
 * @InheritanceType("JOINED")
 * @DiscriminatorColumn(name="discr", type="string")
 * @DiscriminatorMap({"user" = "User", "student" = "Student"})
 */

您应该在父类中使用继承注释。

/**
 * @Entity
 * @InheritanceType("JOINED")
 * @DiscriminatorColumn(name="discr", type="string")
 * @DiscriminatorMap({"student" = "Student", "teacher" = "Teacher"})
 */
  class User
 {
 // ...
 }
  /** @Entity */
  class Student extends User
   {
    // ...
  }
  /** @Entity */
  class Teacher extends User
   {
    // ...
  }