Component.mongodb.xml

<?xml version="1.0" encoding="UTF-8"?>
<doctrine-mongo-mapping xmlns="http://doctrine-project.org/schemas/odm/doctrine-mongo-mapping"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation="http://doctrine-project.org/schemas/odm/doctrine-mongo-mapping
                  http://doctrine-project.org/schemas/odm/doctrine-mongo-mapping.xsd">

    <mapped-superclass name="Spy\TimelineBundle\Document\Component">
        <field name="model" fieldName="model" type="string" />
        <field name="identifier" fieldName="identifier" type="string" />
        <field name="hash" fieldName="hash" type="string" />
        <field name="identifierMigrated" fieldName="identifier_migrated" type="string" length="255" nullable="true" />
        <field name="hashMigrated" fieldName="hash_migrated" type="string" length="255" nullable="true" unique="true" />
        <indexes>
            <index>
                <key name="model" order="asc" />
                <key name="identifier" order="asc" />
            </index>
            <index unique="true">
                <key name="hash" order="asc" />
            </index>
        </indexes>
    </mapped-superclass>
</doctrine-mongo-mapping>