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我正在尝试将 Doctrine 2 的“类表继承功能”与 XML 映射(Symfony 2 PR 7)一起使用。

XML 超类 CatalogProduct 的 XML 定义:

<?xml version="1.0" encoding="UTF-8"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                          http://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
    <entity name="MyApp\CatalogBundle\Entity\CatalogProduct" table="catalog_product" inheritance-type="JOINED">
        <discriminator-column name="discr" type="string" />
        <discriminator-map>
            <discriminator-mapping value="book" class="MyApp\CatalogBundle\Entity\CatalogBook" />
        </discriminator-map>
        <id name="id" type="integer" column="id">
            <generator strategy="AUTO"/>
            <sequence-generator sequence-name="tablename_seq" allocation-size="100" initial-value="1" />
        </id>
        <field name="name" column="name" type="string" length="50" nullable="true" unique="false" />
        <field name="isPublic" column="is_public" type="boolean" />        
    </entity>    
</doctrine-mapping>

XML 超类 CatalogBook 的 XML 定义,应该扩展 CatalogProduct:

<?xml version="1.0" encoding="UTF-8"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                          http://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
    <entity name="MyApp\CatalogBundle\Entity\CatalogBook" table="catalog_book">
        <id name="id" type="integer" column="id">
            <generator strategy="AUTO"/>
            <sequence-generator sequence-name="tablename_seq" allocation-size="100" initial-value="1" />
        </id>
        <field name="author_name" column="author_name" type="string" length="50" nullable="true" unique="false" />
    </entity>    
</doctrine-mapping>

./php 应用程序/控制台原则:生成:实体“CatalogBu​​ndle”

工作正常(实体生成),但 CatalogBook 原来是一个“简单”类,而不是扩展 CatalogProduct。

$book = new CatalogBook();
$book->setAuthorName('some author');
$book->setName('some book name');

导致异常:

Fatal error: Call to undefined method MyApp\CatalogBundle\Entity\CatalogBook::setName()

我想,我在 XML 中遗漏了一些东西,它告诉 CatalogBook 实体扩展 CatalogProduct。但是我在 Doctrine 2 文档或 Google 上找不到任何有帮助的东西。

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1 回答 1

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生成实体不会为您生成继承层次结构,因为这在语义上是不可能的。你必须在调用教义之后自己做:generate:entities。

于 2011-03-11T13:01:14.660 回答