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- <?php
- namespace Drupal\Core\Entity;
- use Drupal\Component\Utility\SafeMarkup;
- use Drupal\Core\Entity\Plugin\DataType\EntityReference;
- use Drupal\Core\Field\BaseFieldDefinition;
- use Drupal\Core\Field\ChangedFieldItemList;
- use Drupal\Core\Language\Language;
- use Drupal\Core\Language\LanguageInterface;
- use Drupal\Core\Session\AccountInterface;
- use Drupal\Core\StringTranslation\TranslatableMarkup;
- use Drupal\Core\TypedData\TranslationStatusInterface;
- use Drupal\Core\TypedData\TypedDataInterface;
- /**
- * Implements Entity Field API specific enhancements to the Entity class.
- *
- * @ingroup entity_api
- */
- abstract class ContentEntityBase extends Entity implements \IteratorAggregate, ContentEntityInterface, TranslationStatusInterface {
- use EntityChangesDetectionTrait {
- getFieldsToSkipFromTranslationChangesCheck as traitGetFieldsToSkipFromTranslationChangesCheck;
- }
- /**
- * The plain data values of the contained fields.
- *
- * This always holds the original, unchanged values of the entity. The values
- * are keyed by language code, whereas LanguageInterface::LANGCODE_DEFAULT
- * is used for values in default language.
- *
- * @todo: Add methods for getting original fields and for determining
- * changes.
- * @todo: Provide a better way for defining default values.
- *
- * @var array
- */
- protected $values = [];
- /**
- * The array of fields, each being an instance of FieldItemListInterface.
- *
- * @var array
- */
- protected $fields = [];
- /**
- * Local cache for field definitions.
- *
- * @see ContentEntityBase::getFieldDefinitions()
- *
- * @var array
- */
- protected $fieldDefinitions;
- /**
- * Local cache for the available language objects.
- *
- * @var \Drupal\Core\Language\LanguageInterface[]
- */
- protected $languages;
- /**
- * The language entity key.
- *
- * @var string
- */
- protected $langcodeKey;
- /**
- * The default langcode entity key.
- *
- * @var string
- */
- protected $defaultLangcodeKey;
- /**
- * Language code identifying the entity active language.
- *
- * This is the language field accessors will use to determine which field
- * values manipulate.
- *
- * @var string
- */
- protected $activeLangcode = LanguageInterface::LANGCODE_DEFAULT;
- /**
- * Local cache for the default language code.
- *
- * @var string
- */
- protected $defaultLangcode;
- /**
- * An array of entity translation metadata.
- *
- * An associative array keyed by translation language code. Every value is an
- * array containing the translation status and the translation object, if it has
- * already been instantiated.
- *
- * @var array
- */
- protected $translations = [];
- /**
- * A flag indicating whether a translation object is being initialized.
- *
- * @var bool
- */
- protected $translationInitialize = FALSE;
- /**
- * Boolean indicating whether a new revision should be created on save.
- *
- * @var bool
- */
- protected $newRevision = FALSE;
- /**
- * Indicates whether this is the default revision.
- *
- * @var bool
- */
- protected $isDefaultRevision = TRUE;
- /**
- * Holds untranslatable entity keys such as the ID, bundle, and revision ID.
- *
- * @var array
- */
- protected $entityKeys = [];
- /**
- * Holds translatable entity keys such as the label.
- *
- * @var array
- */
- protected $translatableEntityKeys = [];
- /**
- * Whether entity validation was performed.
- *
- * @var bool
- */
- protected $validated = FALSE;
- /**
- * Whether entity validation is required before saving the entity.
- *
- * @var bool
- */
- protected $validationRequired = FALSE;
- /**
- * The loaded revision ID before the new revision was set.
- *
- * @var int
- */
- protected $loadedRevisionId;
- /**
- * The revision translation affected entity key.
- *
- * @var string
- */
- protected $revisionTranslationAffectedKey;
- /**
- * Whether the revision translation affected flag has been enforced.
- *
- * An array, keyed by the translation language code.
- *
- * @var bool[]
- */
- protected $enforceRevisionTranslationAffected = [];
- /**
- * {@inheritdoc}
- */
- public function __construct(array $values, $entity_type, $bundle = FALSE, $translations = []) {
- $this->entityTypeId = $entity_type;
- $this->entityKeys['bundle'] = $bundle ? $bundle : $this->entityTypeId;
- $this->langcodeKey = $this->getEntityType()->getKey('langcode');
- $this->defaultLangcodeKey = $this->getEntityType()->getKey('default_langcode');
- $this->revisionTranslationAffectedKey = $this->getEntityType()->getKey('revision_translation_affected');
- foreach ($values as $key => $value) {
- // If the key matches an existing property set the value to the property
- // to set properties like isDefaultRevision.
- // @todo: Should this be converted somehow?
- if (property_exists($this, $key) && isset($value[LanguageInterface::LANGCODE_DEFAULT])) {
- $this->$key = $value[LanguageInterface::LANGCODE_DEFAULT];
- }
- }
- $this->values = $values;
- foreach ($this->getEntityType()->getKeys() as $key => $field_name) {
- if (isset($this->values[$field_name])) {
- if (is_array($this->values[$field_name])) {
- // We store untranslatable fields into an entity key without using a
- // langcode key.
- if (!$this->getFieldDefinition($field_name)->isTranslatable()) {
- if (isset($this->values[$field_name][LanguageInterface::LANGCODE_DEFAULT])) {
- if (is_array($this->values[$field_name][LanguageInterface::LANGCODE_DEFAULT])) {
- if (isset($this->values[$field_name][LanguageInterface::LANGCODE_DEFAULT][0]['value'])) {
- $this->entityKeys[$key] = $this->values[$field_name][LanguageInterface::LANGCODE_DEFAULT][0]['value'];
- }
- }
- else {
- $this->entityKeys[$key] = $this->values[$field_name][LanguageInterface::LANGCODE_DEFAULT];
- }
- }
- }
- else {
- // We save translatable fields such as the publishing status of a node
- // into an entity key array keyed by langcode as a performance
- // optimization, so we don't have to go through TypedData when we
- // need these values.
- foreach ($this->values[$field_name] as $langcode => $field_value) {
- if (is_array($this->values[$field_name][$langcode])) {
- if (isset($this->values[$field_name][$langcode][0]['value'])) {
- $this->translatableEntityKeys[$key][$langcode] = $this->values[$field_name][$langcode][0]['value'];
- }
- }
- else {
- $this->translatableEntityKeys[$key][$langcode] = $this->values[$field_name][$langcode];
- }
- }
- }
- }
- }
- }
- // Initialize translations. Ensure we have at least an entry for the default
- // language.
- // We determine if the entity is new by checking in the entity values for
- // the presence of the id entity key, as the usage of ::isNew() is not
- // possible in the constructor.
- $data = isset($values[$this->getEntityType()->getKey('id')]) ? ['status' => static::TRANSLATION_EXISTING] : ['status' => static::TRANSLATION_CREATED];
- $this->translations[LanguageInterface::LANGCODE_DEFAULT] = $data;
- $this->setDefaultLangcode();
- if ($translations) {
- foreach ($translations as $langcode) {
- if ($langcode != $this->defaultLangcode && $langcode != LanguageInterface::LANGCODE_DEFAULT) {
- $this->translations[$langcode] = $data;
- }
- }
- }
- if ($this->getEntityType()->isRevisionable()) {
- // Store the loaded revision ID the entity has been loaded with to
- // keep it safe from changes.
- $this->updateLoadedRevisionId();
- }
- }
- /**
- * {@inheritdoc}
- */
- protected function getLanguages() {
- if (empty($this->languages)) {
- $this->languages = $this->languageManager()->getLanguages(LanguageInterface::STATE_ALL);
- // If the entity references a language that is not or no longer available,
- // we return a mock language object to avoid disrupting the consuming
- // code.
- if (!isset($this->languages[$this->defaultLangcode])) {
- $this->languages[$this->defaultLangcode] = new Language(['id' => $this->defaultLangcode]);
- }
- }
- return $this->languages;
- }
- /**
- * {@inheritdoc}
- */
- public function postCreate(EntityStorageInterface $storage) {
- $this->newRevision = TRUE;
- }
- /**
- * {@inheritdoc}
- */
- public function setNewRevision($value = TRUE) {
- if (!$this->getEntityType()->hasKey('revision')) {
- throw new \LogicException("Entity type {$this->getEntityTypeId()} does not support revisions.");
- }
- if ($value && !$this->newRevision) {
- // When saving a new revision, set any existing revision ID to NULL so as
- // to ensure that a new revision will actually be created.
- $this->set($this->getEntityType()->getKey('revision'), NULL);
- }
- elseif (!$value && $this->newRevision) {
- // If ::setNewRevision(FALSE) is called after ::setNewRevision(TRUE) we
- // have to restore the loaded revision ID.
- $this->set($this->getEntityType()->getKey('revision'), $this->getLoadedRevisionId());
- }
- $this->newRevision = $value;
- }
- /**
- * {@inheritdoc}
- */
- public function getLoadedRevisionId() {
- return $this->loadedRevisionId;
- }
- /**
- * {@inheritdoc}
- */
- public function updateLoadedRevisionId() {
- $this->loadedRevisionId = $this->getRevisionId() ?: $this->loadedRevisionId;
- return $this;
- }
- /**
- * {@inheritdoc}
- */
- public function isNewRevision() {
- return $this->newRevision || ($this->getEntityType()->hasKey('revision') && !$this->getRevisionId());
- }
- /**
- * {@inheritdoc}
- */
- public function isDefaultRevision($new_value = NULL) {
- $return = $this->isDefaultRevision;
- if (isset($new_value)) {
- $this->isDefaultRevision = (bool) $new_value;
- }
- // New entities should always ensure at least one default revision exists,
- // creating an entity without a default revision is an invalid state.
- return $this->isNew() || $return;
- }
- /**
- * {@inheritdoc}
- */
- public function wasDefaultRevision() {
- /** @var \Drupal\Core\Entity\ContentEntityTypeInterface $entity_type */
- $entity_type = $this->getEntityType();
- if (!$entity_type->isRevisionable()) {
- return TRUE;
- }
- $revision_default_key = $entity_type->getRevisionMetadataKey('revision_default');
- $value = $this->isNew() || $this->get($revision_default_key)->value;
- return $value;
- }
- /**
- * {@inheritdoc}
- */
- public function isLatestRevision() {
- /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
- $storage = $this->entityTypeManager()->getStorage($this->getEntityTypeId());
- return $this->getLoadedRevisionId() == $storage->getLatestRevisionId($this->id());
- }
- /**
- * {@inheritdoc}
- */
- public function isLatestTranslationAffectedRevision() {
- /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
- $storage = $this->entityTypeManager()->getStorage($this->getEntityTypeId());
- return $this->getLoadedRevisionId() == $storage->getLatestTranslationAffectedRevisionId($this->id(), $this->language()->getId());
- }
- /**
- * {@inheritdoc}
- */
- public function isRevisionTranslationAffected() {
- return $this->hasField($this->revisionTranslationAffectedKey) ? $this->get($this->revisionTranslationAffectedKey)->value : TRUE;
- }
- /**
- * {@inheritdoc}
- */
- public function setRevisionTranslationAffected($affected) {
- if ($this->hasField($this->revisionTranslationAffectedKey)) {
- $this->set($this->revisionTranslationAffectedKey, $affected);
- }
- return $this;
- }
- /**
- * {@inheritdoc}
- */
- public function isRevisionTranslationAffectedEnforced() {
- return !empty($this->enforceRevisionTranslationAffected[$this->activeLangcode]);
- }
- /**
- * {@inheritdoc}
- */
- public function setRevisionTranslationAffectedEnforced($enforced) {
- $this->enforceRevisionTranslationAffected[$this->activeLangcode] = $enforced;
- return $this;
- }
- /**
- * {@inheritdoc}
- */
- public function isDefaultTranslation() {
- return $this->activeLangcode === LanguageInterface::LANGCODE_DEFAULT;
- }
- /**
- * {@inheritdoc}
- */
- public function getRevisionId() {
- return $this->getEntityKey('revision');
- }
- /**
- * {@inheritdoc}
- */
- public function isTranslatable() {
- // Check the bundle is translatable, the entity has a language defined, and
- // the site has more than one language.
- $bundles = $this->entityManager()->getBundleInfo($this->entityTypeId);
- return !empty($bundles[$this->bundle()]['translatable']) && !$this->getUntranslated()->language()->isLocked() && $this->languageManager()->isMultilingual();
- }
- /**
- * {@inheritdoc}
- */
- public function preSave(EntityStorageInterface $storage) {
- // An entity requiring validation should not be saved if it has not been
- // actually validated.
- if ($this->validationRequired && !$this->validated) {
- // @todo Make this an assertion in https://www.drupal.org/node/2408013.
- throw new \LogicException('Entity validation was skipped.');
- }
- else {
- $this->validated = FALSE;
- }
- parent::preSave($storage);
- }
- /**
- * {@inheritdoc}
- */
- public function preSaveRevision(EntityStorageInterface $storage, \stdClass $record) {
- }
- /**
- * {@inheritdoc}
- */
- public function postSave(EntityStorageInterface $storage, $update = TRUE) {
- parent::postSave($storage, $update);
- // Update the status of all saved translations.
- $removed = [];
- foreach ($this->translations as $langcode => &$data) {
- if ($data['status'] == static::TRANSLATION_REMOVED) {
- $removed[$langcode] = TRUE;
- }
- else {
- $data['status'] = static::TRANSLATION_EXISTING;
- }
- }
- $this->translations = array_diff_key($this->translations, $removed);
- // Reset the new revision flag.
- $this->newRevision = FALSE;
- // Reset the enforcement of the revision translation affected flag.
- $this->enforceRevisionTranslationAffected = [];
- }
- /**
- * {@inheritdoc}
- */
- public function validate() {
- $this->validated = TRUE;
- $violations = $this->getTypedData()->validate();
- return new EntityConstraintViolationList($this, iterator_to_array($violations));
- }
- /**
- * {@inheritdoc}
- */
- public function isValidationRequired() {
- return (bool) $this->validationRequired;
- }
- /**
- * {@inheritdoc}
- */
- public function setValidationRequired($required) {
- $this->validationRequired = $required;
- return $this;
- }
- /**
- * Clear entity translation object cache to remove stale references.
- */
- protected function clearTranslationCache() {
- foreach ($this->translations as &$translation) {
- unset($translation['entity']);
- }
- }
- /**
- * {@inheritdoc}
- */
- public function __sleep() {
- // Get the values of instantiated field objects, only serialize the values.
- foreach ($this->fields as $name => $fields) {
- foreach ($fields as $langcode => $field) {
- $this->values[$name][$langcode] = $field->getValue();
- }
- }
- $this->fields = [];
- $this->fieldDefinitions = NULL;
- $this->languages = NULL;
- $this->clearTranslationCache();
- return parent::__sleep();
- }
- /**
- * {@inheritdoc}
- */
- public function id() {
- return $this->getEntityKey('id');
- }
- /**
- * {@inheritdoc}
- */
- public function bundle() {
- return $this->getEntityKey('bundle');
- }
- /**
- * {@inheritdoc}
- */
- public function uuid() {
- return $this->getEntityKey('uuid');
- }
- /**
- * {@inheritdoc}
- */
- public function hasField($field_name) {
- return (bool) $this->getFieldDefinition($field_name);
- }
- /**
- * {@inheritdoc}
- */
- public function get($field_name) {
- if (!isset($this->fields[$field_name][$this->activeLangcode])) {
- return $this->getTranslatedField($field_name, $this->activeLangcode);
- }
- return $this->fields[$field_name][$this->activeLangcode];
- }
- /**
- * Gets a translated field.
- *
- * @return \Drupal\Core\Field\FieldItemListInterface
- */
- protected function getTranslatedField($name, $langcode) {
- if ($this->translations[$this->activeLangcode]['status'] == static::TRANSLATION_REMOVED) {
- throw new \InvalidArgumentException("The entity object refers to a removed translation ({$this->activeLangcode}) and cannot be manipulated.");
- }
- // Populate $this->fields to speed-up further look-ups and to keep track of
- // fields objects, possibly holding changes to field values.
- if (!isset($this->fields[$name][$langcode])) {
- $definition = $this->getFieldDefinition($name);
- if (!$definition) {
- throw new \InvalidArgumentException("Field $name is unknown.");
- }
- // Non-translatable fields are always stored with
- // LanguageInterface::LANGCODE_DEFAULT as key.
- $default = $langcode == LanguageInterface::LANGCODE_DEFAULT;
- if (!$default && !$definition->isTranslatable()) {
- if (!isset($this->fields[$name][LanguageInterface::LANGCODE_DEFAULT])) {
- $this->fields[$name][LanguageInterface::LANGCODE_DEFAULT] = $this->getTranslatedField($name, LanguageInterface::LANGCODE_DEFAULT);
- }
- $this->fields[$name][$langcode] = &$this->fields[$name][LanguageInterface::LANGCODE_DEFAULT];
- }
- else {
- $value = NULL;
- if (isset($this->values[$name][$langcode])) {
- $value = $this->values[$name][$langcode];
- }
- $field = \Drupal::service('plugin.manager.field.field_type')->createFieldItemList($this->getTranslation($langcode), $name, $value);
- if ($default) {
- // $this->defaultLangcode might not be set if we are initializing the
- // default language code cache, in which case there is no valid
- // langcode to assign.
- $field_langcode = isset($this->defaultLangcode) ? $this->defaultLangcode : LanguageInterface::LANGCODE_NOT_SPECIFIED;
- }
- else {
- $field_langcode = $langcode;
- }
- $field->setLangcode($field_langcode);
- $this->fields[$name][$langcode] = $field;
- }
- }
- return $this->fields[$name][$langcode];
- }
- /**
- * {@inheritdoc}
- */
- public function set($name, $value, $notify = TRUE) {
- // Assign the value on the child and overrule notify such that we get
- // notified to handle changes afterwards. We can ignore notify as there is
- // no parent to notify anyway.
- $this->get($name)->setValue($value, TRUE);
- return $this;
- }
- /**
- * {@inheritdoc}
- */
- public function getFields($include_computed = TRUE) {
- $fields = [];
- foreach ($this->getFieldDefinitions() as $name => $definition) {
- if ($include_computed || !$definition->isComputed()) {
- $fields[$name] = $this->get($name);
- }
- }
- return $fields;
- }
- /**
- * {@inheritdoc}
- */
- public function getTranslatableFields($include_computed = TRUE) {
- $fields = [];
- foreach ($this->getFieldDefinitions() as $name => $definition) {
- if (($include_computed || !$definition->isComputed()) && $definition->isTranslatable()) {
- $fields[$name] = $this->get($name);
- }
- }
- return $fields;
- }
- /**
- * {@inheritdoc}
- */
- public function getIterator() {
- return new \ArrayIterator($this->getFields());
- }
- /**
- * {@inheritdoc}
- */
- public function getFieldDefinition($name) {
- if (!isset($this->fieldDefinitions)) {
- $this->getFieldDefinitions();
- }
- if (isset($this->fieldDefinitions[$name])) {
- return $this->fieldDefinitions[$name];
- }
- }
- /**
- * {@inheritdoc}
- */
- public function getFieldDefinitions() {
- if (!isset($this->fieldDefinitions)) {
- $this->fieldDefinitions = $this->entityManager()->getFieldDefinitions($this->entityTypeId, $this->bundle());
- }
- return $this->fieldDefinitions;
- }
- /**
- * {@inheritdoc}
- */
- public function toArray() {
- $values = [];
- foreach ($this->getFields() as $name => $property) {
- $values[$name] = $property->getValue();
- }
- return $values;
- }
- /**
- * {@inheritdoc}
- */
- public function access($operation, AccountInterface $account = NULL, $return_as_object = FALSE) {
- if ($operation == 'create') {
- return $this->entityManager()
- ->getAccessControlHandler($this->entityTypeId)
- ->createAccess($this->bundle(), $account, [], $return_as_object);
- }
- return $this->entityManager()
- ->getAccessControlHandler($this->entityTypeId)
- ->access($this, $operation, $account, $return_as_object);
- }
- /**
- * {@inheritdoc}
- */
- public function language() {
- $language = NULL;
- if ($this->activeLangcode != LanguageInterface::LANGCODE_DEFAULT) {
- if (!isset($this->languages[$this->activeLangcode])) {
- $this->getLanguages();
- }
- $language = $this->languages[$this->activeLangcode];
- }
- else {
- // @todo Avoid this check by getting the language from the language
- // manager directly in https://www.drupal.org/node/2303877.
- if (!isset($this->languages[$this->defaultLangcode])) {
- $this->getLanguages();
- }
- $language = $this->languages[$this->defaultLangcode];
- }
- return $language;
- }
- /**
- * Populates the local cache for the default language code.
- */
- protected function setDefaultLangcode() {
- // Get the language code if the property exists.
- // Try to read the value directly from the list of entity keys which got
- // initialized in __construct(). This avoids creating a field item object.
- if (isset($this->translatableEntityKeys['langcode'][$this->activeLangcode])) {
- $this->defaultLangcode = $this->translatableEntityKeys['langcode'][$this->activeLangcode];
- }
- elseif ($this->hasField($this->langcodeKey) && ($item = $this->get($this->langcodeKey)) && isset($item->language)) {
- $this->defaultLangcode = $item->language->getId();
- $this->translatableEntityKeys['langcode'][$this->activeLangcode] = $this->defaultLangcode;
- }
- if (empty($this->defaultLangcode)) {
- // Make sure we return a proper language object, if the entity has a
- // langcode field, default to the site's default language.
- if ($this->hasField($this->langcodeKey)) {
- $this->defaultLangcode = $this->languageManager()->getDefaultLanguage()->getId();
- }
- else {
- $this->defaultLangcode = LanguageInterface::LANGCODE_NOT_SPECIFIED;
- }
- }
- // This needs to be initialized manually as it is skipped when instantiating
- // the language field object to avoid infinite recursion.
- if (!empty($this->fields[$this->langcodeKey])) {
- $this->fields[$this->langcodeKey][LanguageInterface::LANGCODE_DEFAULT]->setLangcode($this->defaultLangcode);
- }
- }
- /**
- * Updates language for already instantiated fields.
- */
- protected function updateFieldLangcodes($langcode) {
- foreach ($this->fields as $name => $items) {
- if (!empty($items[LanguageInterface::LANGCODE_DEFAULT])) {
- $items[LanguageInterface::LANGCODE_DEFAULT]->setLangcode($langcode);
- }
- }
- }
- /**
- * {@inheritdoc}
- */
- public function onChange($name) {
- // Check if the changed name is the value of an entity key and if the value
- // of that is currently cached, if so, reset it. Exclude the bundle from
- // that check, as it ready only and must not change, unsetting it could
- // lead to recursions.
- if ($key = array_search($name, $this->getEntityType()->getKeys())) {
- if ($key != 'bundle') {
- if (isset($this->entityKeys[$key])) {
- unset($this->entityKeys[$key]);
- }
- elseif (isset($this->translatableEntityKeys[$key][$this->activeLangcode])) {
- unset($this->translatableEntityKeys[$key][$this->activeLangcode]);
- }
- // If the revision identifier field is being populated with the original
- // value, we need to make sure the "new revision" flag is reset
- // accordingly.
- if ($key === 'revision' && $this->getRevisionId() == $this->getLoadedRevisionId() && !$this->isNew()) {
- $this->newRevision = FALSE;
- }
- }
- }
- switch ($name) {
- case $this->langcodeKey:
- if ($this->isDefaultTranslation()) {
- // Update the default internal language cache.
- $this->setDefaultLangcode();
- if (isset($this->translations[$this->defaultLangcode])) {
- $message = SafeMarkup::format('A translation already exists for the specified language (@langcode).', ['@langcode' => $this->defaultLangcode]);
- throw new \InvalidArgumentException($message);
- }
- $this->updateFieldLangcodes($this->defaultLangcode);
- }
- else {
- // @todo Allow the translation language to be changed. See
- // https://www.drupal.org/node/2443989.
- $items = $this->get($this->langcodeKey);
- if ($items->value != $this->activeLangcode) {
- $items->setValue($this->activeLangcode, FALSE);
- $message = SafeMarkup::format('The translation language cannot be changed (@langcode).', ['@langcode' => $this->activeLangcode]);
- throw new \LogicException($message);
- }
- }
- break;
- case $this->defaultLangcodeKey:
- // @todo Use a standard method to make the default_langcode field
- // read-only. See https://www.drupal.org/node/2443991.
- if (isset($this->values[$this->defaultLangcodeKey]) && $this->get($this->defaultLangcodeKey)->value != $this->isDefaultTranslation()) {
- $this->get($this->defaultLangcodeKey)->setValue($this->isDefaultTranslation(), FALSE);
- $message = SafeMarkup::format('The default translation flag cannot be changed (@langcode).', ['@langcode' => $this->activeLangcode]);
- throw new \LogicException($message);
- }
- break;
- case $this->revisionTranslationAffectedKey:
- // If the revision translation affected flag is being set then enforce
- // its value.
- $this->setRevisionTranslationAffectedEnforced(TRUE);
- break;
- }
- }
- /**
- * {@inheritdoc}
- */
- public function getTranslation($langcode) {
- // Ensure we always use the default language code when dealing with the
- // original entity language.
- if ($langcode != LanguageInterface::LANGCODE_DEFAULT && $langcode == $this->defaultLangcode) {
- $langcode = LanguageInterface::LANGCODE_DEFAULT;
- }
- // Populate entity translation object cache so it will be available for all
- // translation objects.
- if ($langcode == $this->activeLangcode) {
- $this->translations[$langcode]['entity'] = $this;
- }
- // If we already have a translation object for the specified language we can
- // just return it.
- if (isset($this->translations[$langcode]['entity'])) {
- $translation = $this->translations[$langcode]['entity'];
- }
- // Otherwise if an existing translation language was specified we need to
- // instantiate the related translation.
- elseif (isset($this->translations[$langcode])) {
- $translation = $this->initializeTranslation($langcode);
- $this->translations[$langcode]['entity'] = $translation;
- }
- if (empty($translation)) {
- throw new \InvalidArgumentException("Invalid translation language ($langcode) specified.");
- }
- return $translation;
- }
- /**
- * {@inheritdoc}
- */
- public function getUntranslated() {
- return $this->getTranslation(LanguageInterface::LANGCODE_DEFAULT);
- }
- /**
- * Instantiates a translation object for an existing translation.
- *
- * The translated entity will be a clone of the current entity with the
- * specified $langcode. All translations share the same field data structures
- * to ensure that all of them deal with fresh data.
- *
- * @param string $langcode
- * The language code for the requested translation.
- *
- * @return \Drupal\Core\Entity\EntityInterface
- * The translation object. The content properties of the translation object
- * are stored as references to the main entity.
- */
- protected function initializeTranslation($langcode) {
- // If the requested translation is valid, clone it with the current language
- // as the active language. The $translationInitialize flag triggers a
- // shallow (non-recursive) clone.
- $this->translationInitialize = TRUE;
- $translation = clone $this;
- $this->translationInitialize = FALSE;
- $translation->activeLangcode = $langcode;
- // Ensure that changes to fields, values and translations are propagated
- // to all the translation objects.
- // @todo Consider converting these to ArrayObject.
- $translation->values = &$this->values;
- $translation->fields = &$this->fields;
- $translation->translations = &$this->translations;
- $translation->enforceIsNew = &$this->enforceIsNew;
- $translation->newRevision = &$this->newRevision;
- $translation->entityKeys = &$this->entityKeys;
- $translation->translatableEntityKeys = &$this->translatableEntityKeys;
- $translation->translationInitialize = FALSE;
- $translation->typedData = NULL;
- $translation->loadedRevisionId = &$this->loadedRevisionId;
- $translation->isDefaultRevision = &$this->isDefaultRevision;
- $translation->enforceRevisionTranslationAffected = &$this->enforceRevisionTranslationAffected;
- return $translation;
- }
- /**
- * {@inheritdoc}
- */
- public function hasTranslation($langcode) {
- if ($langcode == $this->defaultLangcode) {
- $langcode = LanguageInterface::LANGCODE_DEFAULT;
- }
- return !empty($this->translations[$langcode]['status']);
- }
- /**
- * {@inheritdoc}
- */
- public function isNewTranslation() {
- return $this->translations[$this->activeLangcode]['status'] == static::TRANSLATION_CREATED;
- }
- /**
- * {@inheritdoc}
- */
- public function addTranslation($langcode, array $values = []) {
- // Make sure we do not attempt to create a translation if an invalid
- // language is specified or the entity cannot be translated.
- $this->getLanguages();
- if (!isset($this->languages[$langcode]) || $this->hasTranslation($langcode) || $this->languages[$langcode]->isLocked()) {
- throw new \InvalidArgumentException("Invalid translation language ($langcode) specified.");
- }
- if ($this->languages[$this->defaultLangcode]->isLocked()) {
- throw new \InvalidArgumentException("The entity cannot be translated since it is language neutral ({$this->defaultLangcode}).");
- }
- // Initialize the translation object.
- /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
- $storage = $this->entityManager()->getStorage($this->getEntityTypeId());
- $this->translations[$langcode]['status'] = !isset($this->translations[$langcode]['status_existed']) ? static::TRANSLATION_CREATED : static::TRANSLATION_EXISTING;
- return $storage->createTranslation($this, $langcode, $values);
- }
- /**
- * {@inheritdoc}
- */
- public function removeTranslation($langcode) {
- if (isset($this->translations[$langcode]) && $langcode != LanguageInterface::LANGCODE_DEFAULT && $langcode != $this->defaultLangcode) {
- foreach ($this->getFieldDefinitions() as $name => $definition) {
- if ($definition->isTranslatable()) {
- unset($this->values[$name][$langcode]);
- unset($this->fields[$name][$langcode]);
- }
- }
- // If removing a translation which has not been saved yet, then we have
- // to remove it completely so that ::getTranslationStatus returns the
- // proper status.
- if ($this->translations[$langcode]['status'] == static::TRANSLATION_CREATED) {
- unset($this->translations[$langcode]);
- }
- else {
- if ($this->translations[$langcode]['status'] == static::TRANSLATION_EXISTING) {
- $this->translations[$langcode]['status_existed'] = TRUE;
- }
- $this->translations[$langcode]['status'] = static::TRANSLATION_REMOVED;
- }
- }
- else {
- throw new \InvalidArgumentException("The specified translation ($langcode) cannot be removed.");
- }
- }
- /**
- * {@inheritdoc}
- */
- public function getTranslationStatus($langcode) {
- if ($langcode == $this->defaultLangcode) {
- $langcode = LanguageInterface::LANGCODE_DEFAULT;
- }
- return isset($this->translations[$langcode]) ? $this->translations[$langcode]['status'] : NULL;
- }
- /**
- * {@inheritdoc}
- */
- public function getTranslationLanguages($include_default = TRUE) {
- $translations = array_filter($this->translations, function ($translation) {
- return $translation['status'];
- });
- unset($translations[LanguageInterface::LANGCODE_DEFAULT]);
- if ($include_default) {
- $translations[$this->defaultLangcode] = TRUE;
- }
- // Now load language objects based upon translation langcodes.
- return array_intersect_key($this->getLanguages(), $translations);
- }
- /**
- * Updates the original values with the interim changes.
- */
- public function updateOriginalValues() {
- if (!$this->fields) {
- return;
- }
- foreach ($this->getFieldDefinitions() as $name => $definition) {
- if (!$definition->isComputed() && !empty($this->fields[$name])) {
- foreach ($this->fields[$name] as $langcode => $item) {
- $item->filterEmptyItems();
- $this->values[$name][$langcode] = $item->getValue();
- }
- }
- }
- }
- /**
- * Implements the magic method for getting object properties.
- *
- * @todo: A lot of code still uses non-fields (e.g. $entity->content in view
- * builders) by reference. Clean that up.
- */
- public function &__get($name) {
- // If this is an entity field, handle it accordingly. We first check whether
- // a field object has been already created. If not, we create one.
- if (isset($this->fields[$name][$this->activeLangcode])) {
- return $this->fields[$name][$this->activeLangcode];
- }
- // Inline getFieldDefinition() to speed things up.
- if (!isset($this->fieldDefinitions)) {
- $this->getFieldDefinitions();
- }
- if (isset($this->fieldDefinitions[$name])) {
- $return = $this->getTranslatedField($name, $this->activeLangcode);
- return $return;
- }
- // Else directly read/write plain values. That way, non-field entity
- // properties can always be accessed directly.
- if (!isset($this->values[$name])) {
- $this->values[$name] = NULL;
- }
- return $this->values[$name];
- }
- /**
- * Implements the magic method for setting object properties.
- *
- * Uses default language always.
- */
- public function __set($name, $value) {
- // Inline getFieldDefinition() to speed things up.
- if (!isset($this->fieldDefinitions)) {
- $this->getFieldDefinitions();
- }
- // Handle Field API fields.
- if (isset($this->fieldDefinitions[$name])) {
- // Support setting values via property objects.
- if ($value instanceof TypedDataInterface) {
- $value = $value->getValue();
- }
- // If a FieldItemList object already exists, set its value.
- if (isset($this->fields[$name][$this->activeLangcode])) {
- $this->fields[$name][$this->activeLangcode]->setValue($value);
- }
- // If not, create one.
- else {
- $this->getTranslatedField($name, $this->activeLangcode)->setValue($value);
- }
- }
- // The translations array is unset when cloning the entity object, we just
- // need to restore it.
- elseif ($name == 'translations') {
- $this->translations = $value;
- }
- // Directly write non-field values.
- else {
- $this->values[$name] = $value;
- }
- }
- /**
- * Implements the magic method for isset().
- */
- public function __isset($name) {
- // "Official" Field API fields are always set. For non-field properties,
- // check the internal values.
- return $this->hasField($name) ? TRUE : isset($this->values[$name]);
- }
- /**
- * Implements the magic method for unset().
- */
- public function __unset($name) {
- // Unsetting a field means emptying it.
- if ($this->hasField($name)) {
- $this->get($name)->setValue([]);
- }
- // For non-field properties, unset the internal value.
- else {
- unset($this->values[$name]);
- }
- }
- /**
- * {@inheritdoc}
- */
- public function createDuplicate() {
- if ($this->translations[$this->activeLangcode]['status'] == static::TRANSLATION_REMOVED) {
- throw new \InvalidArgumentException("The entity object refers to a removed translation ({$this->activeLangcode}) and cannot be manipulated.");
- }
- $duplicate = clone $this;
- $entity_type = $this->getEntityType();
- if ($entity_type->hasKey('id')) {
- $duplicate->{$entity_type->getKey('id')}->value = NULL;
- }
- $duplicate->enforceIsNew();
- // Check if the entity type supports UUIDs and generate a new one if so.
- if ($entity_type->hasKey('uuid')) {
- $duplicate->{$entity_type->getKey('uuid')}->value = $this->uuidGenerator()->generate();
- }
- // Check whether the entity type supports revisions and initialize it if so.
- if ($entity_type->isRevisionable()) {
- $duplicate->{$entity_type->getKey('revision')}->value = NULL;
- $duplicate->loadedRevisionId = NULL;
- }
- return $duplicate;
- }
- /**
- * Magic method: Implements a deep clone.
- */
- public function __clone() {
- // Avoid deep-cloning when we are initializing a translation object, since
- // it will represent the same entity, only with a different active language.
- if ($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;
- 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());
- }
- }
- }
- /**
- * {@inheritdoc}
- */
- public function label() {
- $label = NULL;
- $entity_type = $this->getEntityType();
- if (($label_callback = $entity_type->getLabelCallback()) && is_callable($label_callback)) {
- $label = call_user_func($label_callback, $this);
- }
- elseif (($label_key = $entity_type->getKey('label'))) {
- $label = $this->getEntityKey('label');
- }
- return $label;
- }
- /**
- * {@inheritdoc}
- */
- public function referencedEntities() {
- $referenced_entities = [];
- // Gather a list of referenced entities.
- foreach ($this->getFields() as $field_items) {
- foreach ($field_items as $field_item) {
- // Loop over all properties of a field item.
- foreach ($field_item->getProperties(TRUE) as $property) {
- if ($property instanceof EntityReference && $entity = $property->getValue()) {
- $referenced_entities[] = $entity;
- }
- }
- }
- }
- return $referenced_entities;
- }
- /**
- * Gets the value of the given entity key, if defined.
- *
- * @param string $key
- * Name of the entity key, for example id, revision or bundle.
- *
- * @return mixed
- * The value of the entity key, NULL if not defined.
- */
- protected function getEntityKey($key) {
- // If the value is known already, return it.
- if (isset($this->entityKeys[$key])) {
- return $this->entityKeys[$key];
- }
- if (isset($this->translatableEntityKeys[$key][$this->activeLangcode])) {
- return $this->translatableEntityKeys[$key][$this->activeLangcode];
- }
- // Otherwise fetch the value by creating a field object.
- $value = NULL;
- if ($this->getEntityType()->hasKey($key)) {
- $field_name = $this->getEntityType()->getKey($key);
- $definition = $this->getFieldDefinition($field_name);
- $property = $definition->getFieldStorageDefinition()->getMainPropertyName();
- $value = $this->get($field_name)->$property;
- // Put it in the right array, depending on whether it is translatable.
- if ($definition->isTranslatable()) {
- $this->translatableEntityKeys[$key][$this->activeLangcode] = $value;
- }
- else {
- $this->entityKeys[$key] = $value;
- }
- }
- else {
- $this->entityKeys[$key] = $value;
- }
- return $value;
- }
- /**
- * {@inheritdoc}
- */
- public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
- $fields = [];
- if ($entity_type->hasKey('id')) {
- $fields[$entity_type->getKey('id')] = BaseFieldDefinition::create('integer')
- ->setLabel(new TranslatableMarkup('ID'))
- ->setReadOnly(TRUE)
- ->setSetting('unsigned', TRUE);
- }
- if ($entity_type->hasKey('uuid')) {
- $fields[$entity_type->getKey('uuid')] = BaseFieldDefinition::create('uuid')
- ->setLabel(new TranslatableMarkup('UUID'))
- ->setReadOnly(TRUE);
- }
- if ($entity_type->hasKey('revision')) {
- $fields[$entity_type->getKey('revision')] = BaseFieldDefinition::create('integer')
- ->setLabel(new TranslatableMarkup('Revision ID'))
- ->setReadOnly(TRUE)
- ->setSetting('unsigned', TRUE);
- }
- if ($entity_type->hasKey('langcode')) {
- $fields[$entity_type->getKey('langcode')] = BaseFieldDefinition::create('language')
- ->setLabel(new TranslatableMarkup('Language'))
- ->setDisplayOptions('view', [
- 'region' => 'hidden',
- ])
- ->setDisplayOptions('form', [
- 'type' => 'language_select',
- 'weight' => 2,
- ]);
- if ($entity_type->isRevisionable()) {
- $fields[$entity_type->getKey('langcode')]->setRevisionable(TRUE);
- }
- if ($entity_type->isTranslatable()) {
- $fields[$entity_type->getKey('langcode')]->setTranslatable(TRUE);
- }
- }
- if ($entity_type->hasKey('bundle')) {
- if ($bundle_entity_type_id = $entity_type->getBundleEntityType()) {
- $fields[$entity_type->getKey('bundle')] = BaseFieldDefinition::create('entity_reference')
- ->setLabel($entity_type->getBundleLabel())
- ->setSetting('target_type', $bundle_entity_type_id)
- ->setRequired(TRUE)
- ->setReadOnly(TRUE);
- }
- else {
- $fields[$entity_type->getKey('bundle')] = BaseFieldDefinition::create('string')
- ->setLabel($entity_type->getBundleLabel())
- ->setRequired(TRUE)
- ->setReadOnly(TRUE);
- }
- }
- return $fields;
- }
- /**
- * {@inheritdoc}
- */
- public static function bundleFieldDefinitions(EntityTypeInterface $entity_type, $bundle, array $base_field_definitions) {
- return [];
- }
- /**
- * Returns an array of field names to skip in ::hasTranslationChanges.
- *
- * @return array
- * An array of field names.
- */
- protected function getFieldsToSkipFromTranslationChangesCheck() {
- return $this->traitGetFieldsToSkipFromTranslationChangesCheck($this);
- }
- /**
- * {@inheritdoc}
- */
- public function hasTranslationChanges() {
- if ($this->isNew()) {
- return TRUE;
- }
- // $this->original only exists during save. See
- // \Drupal\Core\Entity\EntityStorageBase::save(). If it exists we re-use it
- // here for performance reasons.
- /** @var \Drupal\Core\Entity\ContentEntityBase $original */
- $original = $this->original ? $this->original : NULL;
- if (!$original) {
- $id = $this->getOriginalId() !== NULL ? $this->getOriginalId() : $this->id();
- $original = $this->entityManager()->getStorage($this->getEntityTypeId())->loadUnchanged($id);
- }
- // If the current translation has just been added, we have a change.
- $translated = count($this->translations) > 1;
- if ($translated && !$original->hasTranslation($this->activeLangcode)) {
- return TRUE;
- }
- // Compare field item current values with the original ones to determine
- // whether we have changes. If a field is not translatable and the entity is
- // translated we skip it because, depending on the use case, it would make
- // sense to mark all translations as changed or none of them. We skip also
- // computed fields as comparing them with their original values might not be
- // possible or be meaningless.
- /** @var \Drupal\Core\Entity\ContentEntityBase $translation */
- $translation = $original->getTranslation($this->activeLangcode);
- // The list of fields to skip from the comparision.
- $skip_fields = $this->getFieldsToSkipFromTranslationChangesCheck();
- // We also check untranslatable fields, so that a change to those will mark
- // all translations as affected, unless they are configured to only affect
- // the default translation.
- $skip_untranslatable_fields = !$this->isDefaultTranslation() && $this->isDefaultTranslationAffectedOnly();
- foreach ($this->getFieldDefinitions() as $field_name => $definition) {
- // @todo Avoid special-casing the following fields. See
- // https://www.drupal.org/node/2329253.
- if (in_array($field_name, $skip_fields, TRUE) || ($skip_untranslatable_fields && !$definition->isTranslatable())) {
- continue;
- }
- $field = $this->get($field_name);
- // When saving entities in the user interface, the changed timestamp is
- // automatically incremented by ContentEntityForm::submitForm() even if
- // nothing was actually changed. Thus, the changed time needs to be
- // ignored when determining whether there are any actual changes in the
- // entity.
- if (!($field instanceof ChangedFieldItemList) && !$definition->isComputed()) {
- $items = $field->filterEmptyItems();
- $original_items = $translation->get($field_name)->filterEmptyItems();
- if (!$items->equals($original_items)) {
- return TRUE;
- }
- }
- }
- return FALSE;
- }
- /**
- * {@inheritdoc}
- */
- public function isDefaultTranslationAffectedOnly() {
- $bundle_name = $this->bundle();
- $bundle_info = \Drupal::service('entity_type.bundle.info')
- ->getBundleInfo($this->getEntityTypeId());
- return !empty($bundle_info[$bundle_name]['untranslatable_fields.default_translation_affected']);
- }
- }
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