Question

I’d like to have a OneToOne mapping from an Entity in one Bundle to an Entity in another. I have:

# KWI\SeniorProjectBundle\Entity\Project:
use KWI\PeopleBundle\Entity\User;

/**
 * @ORM\OneToOne(targetEntity="\KWI\PeopleBundle\Entity\User")
 */
protected $mentor;

Yet running doctrine:schema:update gives the following error:

[Doctrine\ORM\Mapping\MappingException]
Class KWI\PeopleBundle\Entity\User is not a valid entity or mapped super class.

Both entities reside in different databases (realized through two separate entity managers which use two separate DB connections).

Is this even possible to accomplish? I have the feeling that it’s actually pretty common to have different databases that have mappings between each other. So this should be possible, right?

Answer 1

Doctrine doesn’t seem to support mappings across databases. Moving both entities into the same entity manager resolves the issue.