Rapsys\TreeBundle\Entity\Element:
    type: entity
    #repositoryClass: Rapsys\TreeBundle\Repository\ElementRepository
    table: elements
    id:
        id:
            type: integer
            generator:
                strategy: AUTO
            options:
                unsigned: true
    fields:
        path:
            type: string
            length: 4096
            nullable: true
        created:
            type: datetime
        updated:
            type: datetime
    manyToOne:
        album:
            targetEntity: Rapsys\TreeBundle\Entity\Album
            inversedBy: elements
        user:
            targetEntity: Rapsys\TreeBundle\Entity\User
            inversedBy: elements
    uniqueConstraints:
        album_user_path:
            columns: [ album_id, user_id, path ]
    lifecycleCallbacks:
        preUpdate: ['preUpdate']