[Flow] Find all Objects with an empty Collection

[David Sporer]

Sorry.. I shouldn't use this Online Tool to format things...
Hi,
I have a Model containing an 1:n relationship:
/**
 * The pushNotificationRegistrations
 * @var
\Doctrine\Common\Collections\Collection<\My\Project\Domain\Model\Registration>

 * @ORM\OneToMany(mappedBy="User")
 */
protected $registrations;

Is it possible to find all Objects  where the count of the Collection is 0?
I tried this in the Repository but it doesn't work:

public function countEmpty(){
       $query = $this->createQuery();
        return $query->matching($query->equals('registrations.count',
0))->count();
}


But this doesn't seem to work.
Do you have an idea how to solve this?

Regards
David


2014/1/20 David Sporer <david.sporer at gmail.com>

> Hi,
> I have a Model containing an 1:n relationship:/**        * The
> pushNotificationRegistrations     * @var
> \Doctrine\Common\Collections\Collection<\My\Project\Domain\Model\Registration>
>   * @ORM\OneToMany(mappedBy="User")       */     protected $registrations;
> Is it possible to find all Objects  where the count of the Collection is
> 0?I tried this in the Repository but it doesn't work:public function
> countEmpty(){             $query = $this->createQuery();          return
> $query->matching($query->equals('registrations.count', 0))->count();     }
> But this doesn't seem to work.
> Do you have an idea how to solve this?
> RegardsDavid
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