doctrine 获取 OneToMany 关系结果

Question

I have 3 entities Advert , Applications , ApplicationFiles

Advert

/**
 * @ORM\OneToMany(targetEntity="App\Entity\Application", mappedBy="advert", orphanRemoval=true)
 */
private $applications;

Applications

    /**
     * @ORM\OneToMany(targetEntity="App\Entity\ApplicationFiles", mappedBy="app", orphanRemoval=true)
     */
    private $applicationFiles;

ApplicationsFiles

public function getFilePath(): string
    {
        return Uploader::APPLICATION_FILES.'/'.$this->getName();
    }

What I'm trying to do, is when I remove an Advert is to delete every Application with it's related ApplicationsFiles - which I did

My problem is that i can't manage to get the file names for each Advert so i could delete them.

All I could manage to do is to get only one result...

$appRepo = $m->getRepository(Application::class);
$rrr = $appRepo->getFilePath($post);
    dd($rrr);

getFilePath

/**
 * @param $s
 * @return mixed
 */
public function getFilePath($s)
{
    return $this->createQueryBuilder('a')
        ->andWhere('advert.id = :s')
        ->leftJoin('a.applicationFiles','applicationFiles')
        ->leftJoin('a.advert','advert')
        ->addSelect('applicationFiles.name')
        ->setParameter('s', $s)
        ->getQuery()
        ->getResult()
        ;
}

Dump -

array:1 [▼
  0 => array:2 [▼
0 => Application^ {#1186 ▶}
"name" => "hrm-01-application-5db552d60410c.doc"
 ]
]

Any help would be very appreciated:)

Answer 1

I think in this case you should query not Applications entity, but ApplicationFiles . Then you will get array of files to delete.

$filesToDelete = $m->getRepository(ApplicationsFiles::class)
                   ->createQueryBuilder('af')
                   ->innerJoin('af.application', 'a')
                   ->innerJoin('a.advert','advert')
                   ->andWhere('advert.id = :s')
                   ->setParameter('s', $post)
                   ->getQuery()
                   ->getReqult();

I'm not sure about $post var is it ID or Advert object? If it's object then we can remove second join and use only join with Application entity.