We've used STI (Single Table Inheritance) to define an Attachment entity, which a series of other entities inherit. Here is the Attachment module, showing one of the entities that inherits the Attachment entity.
The full qualified entity names in this example are:
\Attachment\Entity\Attachment
\Application\Entity\WorkinstructionDocumentVersion
This is the xml that gets generated for these two entities.
In the subEntity, I have to define a primary key or ORMD won't let me create relationships (for example Many-To-Many between WorkinstructionDocumentVersion and something else (in my case TestSetup) that needs to reference it. However, once I try to use compile the entities in doctrine, it complains the id is redundant (since it inherits the Attachment Id)
<?xml version="1.0"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xsi="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
<entity name="Application\Entity\WorkinstructionDocumentVersion">
<!-- manual edit: id is inherited from \Attachment\Entity\Attachment
<id name="id" type="integer">
<generator strategy="AUTO"/>
</id>
-->
<many-to-one field="workinstructionDocument" target-entity="Application\Entity\WorkinstructionDocument" inversed-by="versions">
<join-columns>
<join-column name="workinstruction_document_id" referenced-column-name="id"/>
</join-columns>
</many-to-one>
<many-to-many field="waterfallTestSetups" target-entity="Application\Entity\WaterfallTestSetup" inversed-by="workinstructionDocumentVersions">
<join-table name="waterfall_test_setups_workinstruction_document_versions_xref">
<join-columns>
<join-column name="workinstruction_document_version_id" referenced-column-name="id" nullable="false"/>
</join-columns>
<inverse-join-columns>
<join-column name="waterfall_test_setup_id" referenced-column-name="id" nullable="false"/>
</inverse-join-columns>
</join-table>
</many-to-many>
</entity>
</doctrine-mapping>
This maybe has something to do with it? When I generate the xml from ORMD, the discriminator mapping class references don't include the fully qualified class names, so Doctrine errors, as it's looking in the \Attachment namespace. If I add the fqn Doctrine is happy.
<?xml version="1.0"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xsi="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
<entity name="Attachment\Entity\Attachment" inheritance-type="SINGLE_TABLE" table="attachments">
<id name="id" type="integer">
<generator strategy="AUTO"/>
</id>
<field name="filename" type="string" nullable="true"/>
<field name="version" type="integer" nullable="true"/>
<field name="path" type="string" nullable="true"/>
<field name="md5" type="text" nullable="true"/>
<field name="description" type="text" nullable="true"/>
<field name="uploadedAt" type="datetime" nullable="true" column="uploaded_at"/>
<discriminator-column name="type_discriminator" field-name="typeDiscriminator" length="255" type="text"/>
<discriminator-map>
<!-- manual edit: have to use Fq class names here -->
<discriminator-mapping class="Application\Entity\WaterfallAttachment" value="Waterfall"/>
<discriminator-mapping class="Application\Entity\SampleAttachment" value="Sample"/>
<discriminator-mapping class="Application\Entity\RequestAttachment" value="Request"/>
<discriminator-mapping class="Application\Entity\WorkinstructionDocumentVersion" value="Workinstruction"/>
<discriminator-mapping class="Application\Entity\SpecificationDocumentVersion"/>
<discriminator-mapping class="Application\Entity\ObservationAttachment" value="Observation"/>
</discriminator-map>
</entity>
</doctrine-mapping>
Am I doing something wrong here, or is this an ORMD issue with inheritance across namespaces?]]>