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DeletionService.php (2419B)

      1 <?php
      2 /**
      3  * Created by PhpStorm.
      4  * User: felicitus
      5  * Date: 10/25/17
      6  * Time: 5:38 PM.
      7  */
      8 
      9 namespace PartKeepr\DoctrineReflectionBundle\Services;
     10 
     11 use Doctrine\ORM\EntityManager;
     12 use Doctrine\ORM\Mapping\ClassMetadata;
     13 
     14 class DeletionService
     15 {
     16     /**
     17      * @var EntityManager
     18      */
     19     private $em;
     20 
     21     public function __construct(EntityManager $entityManager)
     22     {
     23         $this->em = $entityManager;
     24     }
     25 
     26     public function findUndeletableUsages($entity)
     27     {
     28         $realClassName = $this->em->getClassMetadata(get_class($entity))->name;
     29 
     30         $meta = $this->em->getMetadataFactory()->getAllMetadata();
     31         $sourceEntityMetaData = $this->getAllMetadataInfoFor($realClassName);
     32 
     33         $usedIn = [];
     34 
     35         foreach ($meta as $foo) {
     36             /* @var ClassMetadata $foo */
     37             foreach ($foo->getAssociationMappings() as $associationMapping) {
     38                 if ($associationMapping["targetEntity"] === $realClassName && $associationMapping["isOwningSide"]) {
     39 
     40                     //var_dump($associationMapping->
     41                     if ($associationMapping["inversedBy"] !== null) {
     42                         $inverseAssociationMapping = $sourceEntityMetaData->getAssociationMapping($associationMapping["inversedBy"]);
     43 
     44                         if ($inverseAssociationMapping["isCascadeRemove"]) {
     45                             continue;
     46                         }
     47                     }
     48 
     49                     $qb = $this->em->createQueryBuilder();
     50                     $qb->select("q")->from($associationMapping["sourceEntity"], "q")->where(
     51                         $qb->expr()->eq("q.".$associationMapping["fieldName"], ":query")
     52                     );
     53 
     54                     $qb->setParameter(":query", $entity);
     55 
     56                     foreach ($qb->getQuery()->getResult() as $result) {
     57                         $usedIn[] = (string) $result;
     58                     }
     59                 }
     60             }
     61         }
     62 
     63         return $usedIn;
     64     }
     65 
     66     /**
     67      * @param $className
     68      *
     69      * @return ClassMetadata|null
     70      */
     71     protected function getAllMetadataInfoFor($className)
     72     {
     73         $data = $this->em->getMetadataFactory()->getAllMetadata();
     74 
     75         foreach ($data as $info) {
     76             /**
     77              * @var ClassMetadata $info
     78              */
     79             if ($info->getName() == $className) {
     80                 return $info;
     81             }
     82         }
     83 
     84         return null;
     85     }
     86 }