Created
December 6, 2018 19:04
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Helper for migrations with paragraphs
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<?php | |
namespace Drupal\sd8; | |
use Drupal\Core\Entity\ContentEntityInterface; | |
use Drupal\Core\Field\EntityReferenceFieldItemListInterface; | |
/** | |
* Convert an entity to an array and back. | |
*/ | |
class EntityArrayHelper { | |
/** | |
* Convert an array to entity or entities. | |
* | |
* @param $entityTypeId | |
* The entity type id. | |
* @param array $data | |
* Similar to what can be passed ContentEntityStorageInterface::create() | |
* but entity references can be inlined and they will be autocreated. The | |
* reference entity type can be specified by an entity_type key. | |
* Run static::entity2array() for examples. | |
* | |
* @return \Drupal\Core\Entity\ContentEntityInterface | |
*/ | |
public static function array2entity($entityTypeId, array $data) { | |
/** @var \Drupal\Core\Entity\ContentEntityInterface $entity */ | |
$entity = \Drupal::entityTypeManager()->getStorage($entityTypeId)->create($data); | |
foreach ($entity->getFieldDefinitions() as $fieldName => $fieldDefinition) { | |
$fieldItemList = $entity->get($fieldName); | |
if (isset($data[$fieldName]) && $fieldItemList instanceof EntityReferenceFieldItemListInterface) { | |
if (!isset($data[$fieldName][0])) { | |
$data[$fieldName] = [$data[$fieldName]]; | |
} | |
foreach ($data[$fieldName] as $referencedData) { | |
if (!isset($referencedData['target_id'])) { | |
$referencedEntityTypeId = $referencedData['entity_type'] ?? $fieldDefinition->getSetting('target_type'); | |
$fieldItemList->appendItem(static::array2entity($referencedEntityTypeId, $referencedData)); | |
} | |
} | |
} | |
} | |
return $entity; | |
} | |
/** | |
* Convert an entity to an array, inlining referred entities. | |
* | |
* @param \Drupal\Core\Entity\ContentEntityInterface $entity | |
* Entity to be converted. | |
* @param array $inline | |
* Entity type IDs to be inlined. | |
* | |
* @return array | |
* Similar to $entity->toArray() but the values for entity references are | |
* not target_id but the entire referenced $entity->toArray() for types in | |
* $expand. As the default value of $inline shows, this is very useful for | |
* paragraphs. | |
*/ | |
public static function entity2array(ContentEntityInterface $entity, array $inline = ['paragraph']) { | |
$array = $entity->toArray(); | |
foreach ($entity->getFields() as $fieldName => $fieldItemList) { | |
if ($fieldItemList instanceof EntityReferenceFieldItemListInterface) { | |
foreach ($fieldItemList->referencedEntities() as $delta => $referencedEntity) { | |
if ($referencedEntity instanceof ContentEntityInterface && array_search($referencedEntity->getEntityTypeId(), $inline) !== FALSE) { | |
$array[$fieldName][$delta] = static::inlineEntity($referencedEntity, $inline); | |
} | |
} | |
} | |
} | |
return $array; | |
} | |
/** | |
* @param \Drupal\Core\Entity\ContentEntityInterface $entity | |
* | |
* @param array $inline | |
* | |
* @return array | |
*/ | |
protected static function inlineEntity(ContentEntityInterface $entity, array $inline) { | |
$array = static::entity2array($entity, $inline); | |
$array['entity_type'] = $entity->getEntityTypeId(); | |
$keys = $entity->getEntityType()->getKeys(); | |
unset($array[$keys['id']], $array[$keys['revision']], $array[$keys['uuid']]); | |
return $array; | |
} | |
} |
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