Collection.orm.xml

<?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://doctrine-project.org/schemas/orm/doctrine-mapping.xsd"
                  xmlns:gedmo="http://gediminasm.org/schemas/orm/doctrine-extensions-mapping">

    <entity name="Sulu\Bundle\MediaBundle\Entity\Collection" table="me_collections" repository-class="Sulu\Bundle\MediaBundle\Entity\CollectionRepository">
        <id name="id" type="integer" column="id">
            <generator strategy="AUTO"/>
        </id>
        <field name="style" type="string" column="style" length="255" nullable="true"/>
        <field name="lft" type="integer" column="lft">
            <gedmo:tree-left/>
        </field>
        <field name="rgt" type="integer" column="rgt">
            <gedmo:tree-right/>
        </field>
        <field name="depth" type="integer" column="depth">
            <gedmo:tree-level/>
        </field>

        <field name="key" type="string" column="collection_key" length="191" unique="true" nullable="true"/>

        <many-to-one field="type" target-entity="Sulu\Bundle\MediaBundle\Entity\CollectionType" inversed-by="collections">
            <join-columns>
                <join-column name="idCollectionTypes" referenced-column-name="id" nullable="false"/>
            </join-columns>
        </many-to-one>

        <one-to-one field="defaultMeta" target-entity="Sulu\Bundle\MediaBundle\Entity\CollectionMeta">
            <cascade>
                <cascade-all />
            </cascade>

            <join-column name="idCollectionsMetaDefault" referenced-column-name="id" nullable="true" on-delete="CASCADE" />
        </one-to-one>
        <one-to-many field="meta" target-entity="Sulu\Bundle\MediaBundle\Entity\CollectionMeta" mapped-by="collection">
            <cascade>
                <cascade-persist />
            </cascade>
        </one-to-many>
        <one-to-many field="media" target-entity="Sulu\Bundle\MediaBundle\Entity\MediaInterface" mapped-by="collection"/>
        <one-to-many field="children" target-entity="Sulu\Bundle\MediaBundle\Entity\CollectionInterface" mapped-by="parent"/>
        <many-to-one field="parent" target-entity="Sulu\Bundle\MediaBundle\Entity\Collection" inversed-by="children">
            <join-columns>
                <join-column name="idCollectionsParent" referenced-column-name="id" on-delete="SET NULL" />
            </join-columns>
            <gedmo:tree-parent/>
        </many-to-one>

        <gedmo:tree type="nested"/>
    </entity>
</doctrine-mapping>