function ContentEntityBase::__clone
Same name in other branches
- 9 core/lib/Drupal/Core/Entity/ContentEntityBase.php \Drupal\Core\Entity\ContentEntityBase::__clone()
- 8.9.x core/lib/Drupal/Core/Entity/ContentEntityBase.php \Drupal\Core\Entity\ContentEntityBase::__clone()
- 11.x core/lib/Drupal/Core/Entity/ContentEntityBase.php \Drupal\Core\Entity\ContentEntityBase::__clone()
Magic method: Implements a deep clone.
File
-
core/
lib/ Drupal/ Core/ Entity/ ContentEntityBase.php, line 1207
Class
- ContentEntityBase
- Implements Entity Field API specific enhancements to the Entity class.
Namespace
Drupal\Core\EntityCode
public function __clone() {
// Avoid deep-cloning when we are initializing a translation object, since
// it will represent the same entity, only with a different active language.
if ($this->translationInitialize) {
return;
}
// The translation is a different object, and needs its own TypedData
// adapter object.
$this->typedData = NULL;
$definitions = $this->getFieldDefinitions();
// The translation cache has to be cleared before cloning the fields
// below so that the call to getTranslation() does not re-use the
// translation objects of the old entity but instead creates new
// translation objects from the newly cloned entity. Otherwise the newly
// cloned field item lists would hold references to the old translation
// objects in their $parent property after the call to setContext().
$this->clearTranslationCache();
// Because the new translation objects that are created below are
// themselves created by *cloning* the newly cloned entity we need to
// make sure that the references to property values are properly cloned
// before cloning the fields. Otherwise calling
// $items->getEntity()->isNew(), for example, would return the
// $enforceIsNew value of the old entity.
// Ensure the translations array is actually cloned by overwriting the
// original reference with one pointing to a copy of the array.
$translations = $this->translations;
$this->translations =& $translations;
// Ensure that the following properties are actually cloned by
// overwriting the original references with ones pointing to copies of
// them: enforceIsNew, newRevision, loadedRevisionId, fields, entityKeys,
// translatableEntityKeys, values, isDefaultRevision and
// enforceRevisionTranslationAffected.
$enforce_is_new = $this->enforceIsNew;
$this->enforceIsNew =& $enforce_is_new;
$new_revision = $this->newRevision;
$this->newRevision =& $new_revision;
$original_revision_id = $this->loadedRevisionId;
$this->loadedRevisionId =& $original_revision_id;
$fields = $this->fields;
$this->fields =& $fields;
$entity_keys = $this->entityKeys;
$this->entityKeys =& $entity_keys;
$translatable_entity_keys = $this->translatableEntityKeys;
$this->translatableEntityKeys =& $translatable_entity_keys;
$values = $this->values;
$this->values =& $values;
$default_revision = $this->isDefaultRevision;
$this->isDefaultRevision =& $default_revision;
$is_revision_translation_affected_enforced = $this->enforceRevisionTranslationAffected;
$this->enforceRevisionTranslationAffected =& $is_revision_translation_affected_enforced;
$is_syncing = $this->isSyncing;
$this->isSyncing =& $is_syncing;
foreach ($this->fields as $name => $fields_by_langcode) {
$this->fields[$name] = [];
// Untranslatable fields may have multiple references for the same field
// object keyed by language. To avoid creating different field objects
// we retain just the original value, as references will be recreated
// later as needed.
if (!$definitions[$name]->isTranslatable() && count($fields_by_langcode) > 1) {
$fields_by_langcode = array_intersect_key($fields_by_langcode, [
LanguageInterface::LANGCODE_DEFAULT => TRUE,
]);
}
foreach ($fields_by_langcode as $langcode => $items) {
$this->fields[$name][$langcode] = clone $items;
$this->fields[$name][$langcode]
->setContext($name, $this->getTranslation($langcode)
->getTypedData());
}
}
}
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