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<?php |
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namespace Silverback\ApiComponentBundle\DoctrineExtension; |
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use Doctrine\Common\Persistence\Mapping\Driver\MappingDriver; |
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use Doctrine\ORM\EntityManagerInterface; |
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use Doctrine\ORM\Event\LoadClassMetadataEventArgs; |
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use Doctrine\ORM\Mapping\ClassMetadata; |
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use Doctrine\ORM\Mapping\MappingException; |
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use Silverback\ApiComponentBundle\Entity\Component\AbstractComponent; |
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use Silverback\ApiComponentBundle\Entity\Component\Collection\Collection; |
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use Silverback\ApiComponentBundle\Entity\Component\Content\Content; |
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use Silverback\ApiComponentBundle\Entity\Component\Feature\Columns\FeatureColumns; |
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use Silverback\ApiComponentBundle\Entity\Component\Feature\Columns\FeatureColumnsItem; |
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use Silverback\ApiComponentBundle\Entity\Component\Feature\Stacked\FeatureStacked; |
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use Silverback\ApiComponentBundle\Entity\Component\Feature\Stacked\FeatureStackedItem; |
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use Silverback\ApiComponentBundle\Entity\Component\Feature\TextList\FeatureTextList; |
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use Silverback\ApiComponentBundle\Entity\Component\Feature\TextList\FeatureTextListItem; |
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use Silverback\ApiComponentBundle\Entity\Component\Form\Form; |
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use Silverback\ApiComponentBundle\Entity\Component\Gallery\Gallery; |
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use Silverback\ApiComponentBundle\Entity\Component\Gallery\GalleryItem; |
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use Silverback\ApiComponentBundle\Entity\Component\Hero\Hero; |
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use Silverback\ApiComponentBundle\Entity\Component\Image\SimpleImage; |
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use Silverback\ApiComponentBundle\Entity\Component\Layout\SideColumn; |
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use Silverback\ApiComponentBundle\Entity\Component\Navigation\Menu\Menu; |
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use Silverback\ApiComponentBundle\Entity\Component\Navigation\Menu\MenuItem; |
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use Silverback\ApiComponentBundle\Entity\Component\Navigation\NavBar\NavBar; |
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use Silverback\ApiComponentBundle\Entity\Component\Navigation\NavBar\NavBarItem; |
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use Silverback\ApiComponentBundle\Entity\Component\Navigation\Tabs\Tabs; |
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use Silverback\ApiComponentBundle\Entity\Component\Navigation\Tabs\TabsItem; |
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use Symfony\Component\Cache\Adapter\FilesystemAdapter; |
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use Symfony\Component\Serializer\NameConverter\CamelCaseToSnakeCaseNameConverter; |
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use Symfony\Contracts\Cache\ItemInterface; |
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class DiscriminatorMappingExtension |
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{ |
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private static $mappingKeys = [ |
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'content' => Content::class, |
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'form' => Form::class, |
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'gallery' => Gallery::class, |
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'gallery_item' => GalleryItem::class, |
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'hero' => Hero::class, |
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'feature_columns' => FeatureColumns::class, |
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'feature_columns_item' => FeatureColumnsItem::class, |
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'feature_stacked' => FeatureStacked::class, |
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'feature_stacked_item' => FeatureStackedItem::class, |
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'feature_text_list' => FeatureTextList::class, |
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'feature_text_list_item' => FeatureTextListItem::class, |
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'nav_bar' => NavBar::class, |
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'nav_bar_item' => NavBarItem::class, |
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'tabs' => Tabs::class, |
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'tabs_item' => TabsItem::class, |
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'menu' => Menu::class, |
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'menu_item' => MenuItem::class, |
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'collection' => Collection::class, |
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'simple_image' => SimpleImage::class, |
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'layout_side_column' => SideColumn::class |
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]; |
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/** |
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* @var MappingDriver |
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*/ |
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private $driver; |
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/** |
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* @param EntityManagerInterface $em |
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*/ |
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public function __construct(EntityManagerInterface $em) |
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{ |
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$this->driver = $em->getConfiguration()->getMetadataDriverImpl(); |
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} |
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public function loadClassMetadata(LoadClassMetadataEventArgs $eventArgs): void |
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{ |
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$classMetadata = $eventArgs->getClassMetadata(); |
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$reflection = $classMetadata->getReflectionClass(); |
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if ($reflection->getName() !== AbstractComponent::class) { |
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return; |
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} |
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$this->addDiscriminatorMap($classMetadata); |
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} |
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protected function addDiscriminatorMap(ClassMetadata $class): void |
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{ |
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// ! $class->discriminatorMap && |
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if ($class->isRootEntity() && ! $class->isInheritanceTypeNone()) { |
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$this->addDefaultDiscriminatorMap($class); |
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} |
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} |
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/** |
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* Adds a default discriminator map if no one is given |
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* |
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* If an entity is of any inheritance type and does not contain a |
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* discriminator map, then the map is generated automatically. This process |
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* is expensive computation wise. We will be looking to manually specify this in future |
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* with a default discriminator map and then further items to merge into it added |
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* via the bundle config |
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* |
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* The automatically generated discriminator map contains the lowercase short name of |
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* each class as key. |
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* |
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* @param ClassMetadata $class |
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*/ |
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private function addDefaultDiscriminatorMap(ClassMetadata $class): void |
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{ |
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$cache = new FilesystemAdapter(); |
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$map = $cache->get('component_discriminator_map', function (ItemInterface $item) use ($class) { |
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$item->expiresAfter(30); |
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return $this->getDiscriminatorMap($class); |
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}); |
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$class->setDiscriminatorMap($map); |
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} |
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/** |
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* @param ClassMetadata $class |
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* @return array |
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* @throws MappingException |
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*/ |
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private function getDiscriminatorMap(ClassMetadata $class): array |
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{ |
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$allClasses = $this->driver->getAllClassNames(); |
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$fqcn = $class->getName(); |
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$map = [$this->getShortName($class->name) => $fqcn]; |
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$duplicates = []; |
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foreach ($allClasses as $subClassCandidate) { |
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if (is_subclass_of($subClassCandidate, $fqcn)) { |
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$shortName = $this->getShortName($subClassCandidate); |
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if (isset($map[$shortName])) { |
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$duplicates[] = $shortName; |
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} |
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$map[$shortName] = $subClassCandidate; |
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} |
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} |
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if ($duplicates) { |
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throw MappingException::duplicateDiscriminatorEntry($class->name, $duplicates, $map); |
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} |
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return $map; |
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} |
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/** |
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* Gets the lower-case short name of a class. |
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* |
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* @param string $className |
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* |
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* @return string |
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*/ |
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private function getShortName($className): string |
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{ |
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$nameConverter = new CamelCaseToSnakeCaseNameConverter(); |
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$name = array_search($className, self::$mappingKeys, true); |
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if (!$name) { |
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$parts = explode("\\", $className); |
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$lastPart = end($parts); |
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$name = $nameConverter->normalize($lastPart); |
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} |
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return $name; |
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} |
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} |
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components-web-app /
api-components-bundle
