如何在 Zend Framework 3 中自动加载继承的学说实体？

Question

<?php
namespace MyProject\Model;

/**
 * @Entity
 * @InheritanceType("SINGLE_TABLE")
 * @DiscriminatorColumn(name="discr", type="string")
 * @DiscriminatorMap({"person" = "Person", "employee" = "Employee"})
 */
class Person
{
    // ...
}

/**
 * @Entity
 */
class Employee extends Person
{
    // ...
}

如何为上述学说实体继承定义Autoload？或者我们可以将每个实体放在单独的文件中，例如 Entity\Person.php , Employee\Person.php ?

Answer 1

如果您希望您的项目与（例如）PSR-4 (Autoloader).

兼容，则应将每个 PHP class 放入其自己的文件中

引用自 PSR-4 规范：

When loading a file that corresponds to a fully qualified class name …

A contiguous series of one or more leading namespace and sub-namespace names, not including the leading namespace separator, in the fully qualified class name (a “namespace prefix”) corresponds to at least one “base directory”.

The contiguous sub-namespace names after the “namespace prefix” correspond to a subdirectory within a “base directory”, in which the namespace separators represent directory separators. The subdirectory name MUST match the case of the sub-namespace names.

The terminating class name corresponds to a file name ending in .php. The file name MUST match the case of the terminating class name.

因此，如果您在 MyProject\Model 命名空间中创建 class Person，自动加载器将只能在 …/Model/Person.php 文件中找到它。 Employee class 必须转到单独的 …/Model/Employee.php 文件才能供自动加载器使用。

如何在 Zend Framework 3 中自动加载继承的学说实体？

How to autoload inherited doctrine entity in Zend Framework 3?

php

entity

zend-framework

doctrine-orm

zend-framework3