Doctrine2 Class table 继承实体ID

Question

我有这种情况

<entity name="Company\Entity\User\User" table="usr_user" inheritance-type="JOINED">
    <unique-constraints>
        <unique-constraint name="username_UNIQUE" columns="username" />
    </unique-constraints>
    <discriminator-column name="discriminator" />
    <discriminator-map>
        <discriminator-mapping value="guest" class="\Company\Entity\User\Guest"></discriminator-mapping>
        <discriminator-mapping value="user" class="\Company\Entity\User\User"></discriminator-mapping>
    </discriminator-map>
    <id name="id" type="integer" column="id">
        <generator strategy="AUTO" />
    </id>
    <field name="username" type="string" column="username" length="255" />
    <field name="password" type="string" column="password" length="50" />
</entity>

<entity name="Company\Entity\User\Guest" table="usr_guest">
    <id name="id" type="integer" column="id">
        <generator strategy="AUTO" />
    </id>
    <field name="additionalField1" type="string" column="additional_field_1" length="255" />
    <field name="additionalField1" type="string" column="additional_field_2" length="255" />
</entity>

当我生成实体时，我添加了继承

class User {
 // Some code...
}

class Guest extends User{
 // Some code...
}

当我尝试更新数据库架构时出现问题，因为两个实体的 "id" 列名称相同。我尝试添加属性覆盖，但我想这不是正确的方法

<entity name="Company\Entity\User\Guest" table="usr_guest">

    <id name="id" type="integer" column="id">
        <generator strategy="AUTO" />
    </id>
    <field name="additionalField1" type="string" column="additional_field_1" length="255" />
    <field name="additionalField1" type="string" column="additional_field_2" length="255" />
    <attribute-override name="id">
                <field column="guest_id" />
            </attribute-override>
</entity>

我也尝试过更改 guest_id 中的属性名称（不是列名称），但错误是相同的

 [Doctrine\ORM\Mapping\MappingException]
  Duplicate definition of column 'id' on entity 'Company\Entity\User\Guest' in a field or discriminator column mapping.

我是否必须更改来宾 "id" 列名称？我哪里错了？

谢谢

Answer 1

为了使这个问题的状态变为已回答来自 this :

<entity name="Company\Entity\User\Guest" table="usr_guest">
    <field name="additionalField1" type="string" column="additional_field_1" length="255" />
    <field name="additionalField1" type="string" column="additional_field_2" length="255" />
    <attribute-override name="id">
      <field column="guest_id" />
    </attribute-override>
</entity>

<entity name="Company\Entity\User\User" table="usr_user" inheritance-type="JOINED">
    <id name="id" type="integer" column="id">
        <generator strategy="AUTO" />
    </id>
    <unique-constraints>
        <unique-constraint name="username_UNIQUE" columns="username" />
    </unique-constraints>
    <discriminator-column name="discriminator" />
    <discriminator-map>
        <discriminator-mapping value="guest" class="\Company\Entity\User\Guest"></discriminator-mapping>
        <discriminator-mapping value="user" class="\Company\Entity\User\User"></discriminator-mapping>
    </discriminator-map>
    <field name="username" type="string" column="username" length="255" />
    <field name="password" type="string" column="password" length="50" />
</entity>

您必须删除继承 table 上的主键，因为它已在母 table 上声明。

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