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class ContentEntityForm in Drupal 9

Same name and namespace in other branches
  1. 8 core/lib/Drupal/Core/Entity/ContentEntityForm.php \Drupal\Core\Entity\ContentEntityForm
  2. 10 core/lib/Drupal/Core/Entity/ContentEntityForm.php \Drupal\Core\Entity\ContentEntityForm

Entity form variant for content entity types.

Hierarchy

Expanded class hierarchy of ContentEntityForm

See also

\Drupal\Core\ContentEntityBase

15 files declare their use of ContentEntityForm
AccountForm.php in core/modules/user/src/AccountForm.php
BlockContentForm.php in core/modules/block_content/src/BlockContentForm.php
BookOutlineForm.php in core/modules/book/src/Form/BookOutlineForm.php
CommentForm.php in core/modules/comment/src/CommentForm.php
EntityTestForm.php in core/modules/system/tests/modules/entity_test/src/EntityTestForm.php

... See full list

File

core/lib/Drupal/Core/Entity/ContentEntityForm.php, line 16

Namespace

Drupal\Core\Entity
View source 
class ContentEntityForm extends EntityForm implements ContentEntityFormInterface {

  /**
   * The entity being used by this form.
   *
   * @var \Drupal\Core\Entity\ContentEntityInterface|\Drupal\Core\Entity\RevisionLogInterface
   */
  protected $entity;

  /**
   * The entity type bundle info service.
   *
   * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
   */
  protected $entityTypeBundleInfo;

  /**
   * The time service.
   *
   * @var \Drupal\Component\Datetime\TimeInterface
   */
  protected $time;

  /**
   * The entity repository service.
   *
   * @var \Drupal\Core\Entity\EntityRepositoryInterface
   */
  protected $entityRepository;

  /**
   * Constructs a ContentEntityForm object.
   *
   * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
   *   The entity repository service.
   * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_type_bundle_info
   *   The entity type bundle service.
   * @param \Drupal\Component\Datetime\TimeInterface $time
   *   The time service.
   */
  public function __construct(EntityRepositoryInterface $entity_repository, EntityTypeBundleInfoInterface $entity_type_bundle_info, TimeInterface $time) {
    $this->entityRepository = $entity_repository;
    $this->entityTypeBundleInfo = $entity_type_bundle_info;
    $this->time = $time;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('entity.repository'), $container
      ->get('entity_type.bundle.info'), $container
      ->get('datetime.time'));
  }

  /**
   * {@inheritdoc}
   */
  protected function prepareEntity() {
    parent::prepareEntity();

    // Hide the current revision log message in UI.
    if ($this
      ->showRevisionUi() && !$this->entity
      ->isNew() && $this->entity instanceof RevisionLogInterface) {
      $this->entity
        ->setRevisionLogMessage(NULL);
    }
  }

  /**
   * Returns the bundle entity of the entity, or NULL if there is none.
   *
   * @return \Drupal\Core\Entity\EntityInterface|null
   *   The bundle entity.
   */
  protected function getBundleEntity() {
    if ($bundle_entity_type = $this->entity
      ->getEntityType()
      ->getBundleEntityType()) {
      return $this->entityTypeManager
        ->getStorage($bundle_entity_type)
        ->load($this->entity
        ->bundle());
    }
    return NULL;
  }

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {
    if ($this
      ->showRevisionUi()) {

      // Advanced tab must be the first, because other fields rely on that.
      if (!isset($form['advanced'])) {
        $form['advanced'] = [
          '#type' => 'vertical_tabs',
          '#weight' => 99,
        ];
      }
    }
    $form = parent::form($form, $form_state);

    // Content entity forms do not use the parent's #after_build callback
    // because they only need to rebuild the entity in the validation and the
    // submit handler because Field API uses its own #after_build callback for
    // its widgets.
    unset($form['#after_build']);
    $this
      ->getFormDisplay($form_state)
      ->buildForm($this->entity, $form, $form_state);

    // Allow modules to act before and after form language is updated.
    $form['#entity_builders']['update_form_langcode'] = '::updateFormLangcode';
    if ($this
      ->showRevisionUi()) {
      $this
        ->addRevisionableFormFields($form);
    }
    $form['footer'] = [
      '#type' => 'container',
      '#weight' => 99,
      '#attributes' => [
        'class' => [
          'entity-content-form-footer',
        ],
      ],
      '#optional' => TRUE,
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    parent::submitForm($form, $form_state);

    // Update the changed timestamp of the entity.
    $this
      ->updateChangedTime($this->entity);
  }

  /**
   * {@inheritdoc}
   */
  public function buildEntity(array $form, FormStateInterface $form_state) {

    /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
    $entity = parent::buildEntity($form, $form_state);

    // Mark the entity as requiring validation.
    $entity
      ->setValidationRequired(!$form_state
      ->getTemporaryValue('entity_validated'));

    // Save as a new revision if requested to do so.
    if ($this
      ->showRevisionUi() && !$form_state
      ->isValueEmpty('revision')) {
      $entity
        ->setNewRevision();
      if ($entity instanceof RevisionLogInterface) {

        // If a new revision is created, save the current user as
        // revision author.
        $entity
          ->setRevisionUserId($this
          ->currentUser()
          ->id());
        $entity
          ->setRevisionCreationTime($this->time
          ->getRequestTime());
      }
    }
    return $entity;
  }

  /**
   * {@inheritdoc}
   *
   * Button-level validation handlers are highly discouraged for entity forms,
   * as they will prevent entity validation from running. If the entity is going
   * to be saved during the form submission, this method should be manually
   * invoked from the button-level validation handler, otherwise an exception
   * will be thrown.
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
    parent::validateForm($form, $form_state);

    /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
    $entity = $this
      ->buildEntity($form, $form_state);
    $violations = $entity
      ->validate();

    // Remove violations of inaccessible fields.
    $violations
      ->filterByFieldAccess($this
      ->currentUser());

    // In case a field-level submit button is clicked, for example the 'Add
    // another item' button for multi-value fields or the 'Upload' button for a
    // File or an Image field, make sure that we only keep violations for that
    // specific field.
    $edited_fields = [];
    if ($limit_validation_errors = $form_state
      ->getLimitValidationErrors()) {
      foreach ($limit_validation_errors as $section) {
        $field_name = reset($section);
        if ($entity
          ->hasField($field_name)) {
          $edited_fields[] = $field_name;
        }
      }
      $edited_fields = array_unique($edited_fields);
    }
    else {
      $edited_fields = $this
        ->getEditedFieldNames($form_state);
    }

    // Remove violations for fields that are not edited.
    $violations
      ->filterByFields(array_diff(array_keys($entity
      ->getFieldDefinitions()), $edited_fields));
    $this
      ->flagViolations($violations, $form, $form_state);

    // The entity was validated.
    $entity
      ->setValidationRequired(FALSE);
    $form_state
      ->setTemporaryValue('entity_validated', TRUE);
    return $entity;
  }

  /**
   * Gets the names of all fields edited in the form.
   *
   * If the entity form customly adds some fields to the form (i.e. without
   * using the form display), it needs to add its fields here and override
   * flagViolations() for displaying the violations.
   *
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @return string[]
   *   An array of field names.
   */
  protected function getEditedFieldNames(FormStateInterface $form_state) {
    return array_keys($this
      ->getFormDisplay($form_state)
      ->getComponents());
  }

  /**
   * Flags violations for the current form.
   *
   * If the entity form customly adds some fields to the form (i.e. without
   * using the form display), it needs to add its fields to array returned by
   * getEditedFieldNames() and overwrite this method in order to show any
   * violations for those fields; e.g.:
   * @code
   * foreach ($violations->getByField('name') as $violation) {
   *   $form_state->setErrorByName('name', $violation->getMessage());
   * }
   * parent::flagViolations($violations, $form, $form_state);
   * @endcode
   *
   * @param \Drupal\Core\Entity\EntityConstraintViolationListInterface $violations
   *   The violations to flag.
   * @param array $form
   *   A nested array of form elements comprising the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  protected function flagViolations(EntityConstraintViolationListInterface $violations, array $form, FormStateInterface $form_state) {

    // Flag entity level violations.
    foreach ($violations
      ->getEntityViolations() as $violation) {

      /** @var \Symfony\Component\Validator\ConstraintViolationInterface $violation */
      $form_state
        ->setErrorByName(str_replace('.', '][', $violation
        ->getPropertyPath()), $violation
        ->getMessage());
    }

    // Let the form display flag violations of its fields.
    $this
      ->getFormDisplay($form_state)
      ->flagWidgetsErrorsFromViolations($violations, $form, $form_state);
  }

  /**
   * Initializes the form state and the entity before the first form build.
   *
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  protected function init(FormStateInterface $form_state) {

    // Ensure we act on the translation object corresponding to the current form
    // language.
    $this
      ->initFormLangcodes($form_state);
    $langcode = $this
      ->getFormLangcode($form_state);
    $this->entity = $this->entity
      ->hasTranslation($langcode) ? $this->entity
      ->getTranslation($langcode) : $this->entity
      ->addTranslation($langcode);
    $form_display = EntityFormDisplay::collectRenderDisplay($this->entity, $this
      ->getOperation());
    $this
      ->setFormDisplay($form_display, $form_state);
    parent::init($form_state);
  }

  /**
   * Initializes form language code values.
   *
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  protected function initFormLangcodes(FormStateInterface $form_state) {

    // Store the entity default language to allow checking whether the form is
    // dealing with the original entity or a translation.
    if (!$form_state
      ->has('entity_default_langcode')) {
      $form_state
        ->set('entity_default_langcode', $this->entity
        ->getUntranslated()
        ->language()
        ->getId());
    }

    // This value might have been explicitly populated to work with a particular
    // entity translation. If not we fall back to the most proper language based
    // on contextual information.
    if (!$form_state
      ->has('langcode')) {

      // Imply a 'view' operation to ensure users edit entities in the same
      // language they are displayed. This allows to keep contextual editing
      // working also for multilingual entities.
      $form_state
        ->set('langcode', $this->entityRepository
        ->getTranslationFromContext($this->entity)
        ->language()
        ->getId());
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getFormLangcode(FormStateInterface $form_state) {
    $this
      ->initFormLangcodes($form_state);
    return $form_state
      ->get('langcode');
  }

  /**
   * {@inheritdoc}
   */
  public function isDefaultFormLangcode(FormStateInterface $form_state) {
    $this
      ->initFormLangcodes($form_state);
    return $form_state
      ->get('langcode') == $form_state
      ->get('entity_default_langcode');
  }

  /**
   * {@inheritdoc}
   */
  protected function copyFormValuesToEntity(EntityInterface $entity, array $form, FormStateInterface $form_state) {

    // First, extract values from widgets.
    $extracted = $this
      ->getFormDisplay($form_state)
      ->extractFormValues($entity, $form, $form_state);

    // Then extract the values of fields that are not rendered through widgets,
    // by simply copying from top-level form values. This leaves the fields
    // that are not being edited within this form untouched.
    foreach ($form_state
      ->getValues() as $name => $values) {
      if ($entity
        ->hasField($name) && !isset($extracted[$name])) {
        $entity
          ->set($name, $values);
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getFormDisplay(FormStateInterface $form_state) {
    return $form_state
      ->get('form_display');
  }

  /**
   * {@inheritdoc}
   */
  public function setFormDisplay(EntityFormDisplayInterface $form_display, FormStateInterface $form_state) {
    $form_state
      ->set('form_display', $form_display);
    return $this;
  }

  /**
   * Updates the form language to reflect any change to the entity language.
   *
   * There are use cases for modules to act both before and after form language
   * being updated, thus the update is performed through an entity builder
   * callback, which allows to support both cases.
   *
   * @param string $entity_type_id
   *   The entity type identifier.
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity updated with the submitted values.
   * @param array $form
   *   The complete form array.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @see \Drupal\Core\Entity\ContentEntityForm::form()
   */
  public function updateFormLangcode($entity_type_id, EntityInterface $entity, array $form, FormStateInterface $form_state) {
    $langcode = $entity
      ->language()
      ->getId();
    $form_state
      ->set('langcode', $langcode);

    // If this is the original entity language, also update the default
    // langcode.
    if ($langcode == $entity
      ->getUntranslated()
      ->language()
      ->getId()) {
      $form_state
        ->set('entity_default_langcode', $langcode);
    }
  }

  /**
   * Updates the changed time of the entity.
   *
   * Applies only if the entity implements the EntityChangedInterface.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity updated with the submitted values.
   */
  public function updateChangedTime(EntityInterface $entity) {
    if ($entity instanceof EntityChangedInterface) {
      $entity
        ->setChangedTime($this->time
        ->getRequestTime());
    }
  }

  /**
   * Add revision form fields if the entity enabled the UI.
   *
   * @param array $form
   *   An associative array containing the structure of the form.
   */
  protected function addRevisionableFormFields(array &$form) {

    /** @var ContentEntityTypeInterface $entity_type */
    $entity_type = $this->entity
      ->getEntityType();
    $new_revision_default = $this
      ->getNewRevisionDefault();

    // Add a log field if the "Create new revision" option is checked, or if the
    // current user has the ability to check that option.
    $form['revision_information'] = [
      '#type' => 'details',
      '#title' => $this
        ->t('Revision information'),
      // Open by default when "Create new revision" is checked.
      '#open' => $new_revision_default,
      '#group' => 'advanced',
      '#weight' => 20,
      '#access' => $new_revision_default || $this->entity
        ->get($entity_type
        ->getKey('revision'))
        ->access('update'),
      '#optional' => TRUE,
      '#attributes' => [
        'class' => [
          'entity-content-form-revision-information',
        ],
      ],
      '#attached' => [
        'library' => [
          'core/drupal.entity-form',
        ],
      ],
    ];
    $form['revision'] = [
      '#type' => 'checkbox',
      '#title' => $this
        ->t('Create new revision'),
      '#default_value' => $new_revision_default,
      '#access' => !$this->entity
        ->isNew() && $this->entity
        ->get($entity_type
        ->getKey('revision'))
        ->access('update'),
      '#group' => 'revision_information',
    ];

    // Get log message field's key from definition.
    $log_message_field = $entity_type
      ->getRevisionMetadataKey('revision_log_message');
    if ($log_message_field && isset($form[$log_message_field])) {
      $form[$log_message_field] += [
        '#group' => 'revision_information',
        '#states' => [
          'visible' => [
            ':input[name="revision"]' => [
              'checked' => TRUE,
            ],
          ],
        ],
      ];
    }
  }

  /**
   * Should new revisions created on default.
   *
   * @return bool
   *   New revision on default.
   */
  protected function getNewRevisionDefault() {
    $new_revision_default = FALSE;
    $bundle_entity = $this
      ->getBundleEntity();
    if ($bundle_entity instanceof RevisionableEntityBundleInterface) {

      // Always use the default revision setting.
      $new_revision_default = $bundle_entity
        ->shouldCreateNewRevision();
    }
    return $new_revision_default;
  }

  /**
   * Checks whether the revision form fields should be added to the form.
   *
   * @return bool
   *   TRUE if the form field should be added, FALSE otherwise.
   */
  protected function showRevisionUi() {
    return $this->entity
      ->getEntityType()
      ->showRevisionUi();
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ContentEntityForm::$entity protected property The entity being used by this form. Overrides EntityForm::$entity 9
ContentEntityForm::$entityRepository protected property The entity repository service.
ContentEntityForm::$entityTypeBundleInfo protected property The entity type bundle info service.
ContentEntityForm::$time protected property The time service.
ContentEntityForm::addRevisionableFormFields protected function Add revision form fields if the entity enabled the UI.
ContentEntityForm::buildEntity public function Builds an updated entity object based upon the submitted form values. Overrides EntityForm::buildEntity 4
ContentEntityForm::copyFormValuesToEntity protected function Copies top-level form values to entity properties. Overrides EntityForm::copyFormValuesToEntity
ContentEntityForm::create public static function Instantiates a new instance of this class. Overrides FormBase::create 9
ContentEntityForm::flagViolations protected function Flags violations for the current form. 4
ContentEntityForm::form public function Gets the actual form array to be built. Overrides EntityForm::form 13
ContentEntityForm::getBundleEntity protected function Returns the bundle entity of the entity, or NULL if there is none.
ContentEntityForm::getEditedFieldNames protected function Gets the names of all fields edited in the form. 4
ContentEntityForm::getFormDisplay public function Gets the form display. Overrides ContentEntityFormInterface::getFormDisplay
ContentEntityForm::getFormLangcode public function Gets the code identifying the active form language. Overrides ContentEntityFormInterface::getFormLangcode
ContentEntityForm::getNewRevisionDefault protected function Should new revisions created on default.
ContentEntityForm::init protected function Initializes the form state and the entity before the first form build. Overrides EntityForm::init 1
ContentEntityForm::initFormLangcodes protected function Initializes form language code values.
ContentEntityForm::isDefaultFormLangcode public function Checks whether the current form language matches the entity one. Overrides ContentEntityFormInterface::isDefaultFormLangcode
ContentEntityForm::prepareEntity protected function Prepares the entity object before the form is built first. Overrides EntityForm::prepareEntity 1
ContentEntityForm::setFormDisplay public function Sets the form display. Overrides ContentEntityFormInterface::setFormDisplay
ContentEntityForm::showRevisionUi protected function Checks whether the revision form fields should be added to the form.
ContentEntityForm::submitForm public function This is the default entity object builder function. It is called before any other submit handler to build the new entity object to be used by the following submit handlers. At this point of the form workflow the entity is validated and the form state… Overrides EntityForm::submitForm 4
ContentEntityForm::updateChangedTime public function Updates the changed time of the entity.
ContentEntityForm::updateFormLangcode public function Updates the form language to reflect any change to the entity language.
ContentEntityForm::validateForm public function Button-level validation handlers are highly discouraged for entity forms, as they will prevent entity validation from running. If the entity is going to be saved during the form submission, this method should be manually invoked from the button-level… Overrides FormBase::validateForm 3
ContentEntityForm::__construct public function Constructs a ContentEntityForm object. 9
DependencySerializationTrait::$_entityStorages protected property
DependencySerializationTrait::$_serviceIds protected property
DependencySerializationTrait::__sleep public function 2
DependencySerializationTrait::__wakeup public function 2
EntityForm::$entityTypeManager protected property The entity type manager. 3
EntityForm::$moduleHandler protected property The module handler service.
EntityForm::$operation protected property The name of the current operation.
EntityForm::actions protected function Returns an array of supported actions for the current entity form. 35
EntityForm::actionsElement protected function Returns the action form element for the current entity form.
EntityForm::afterBuild public function Form element #after_build callback: Updates the entity with submitted data.
EntityForm::buildForm public function Form constructor. Overrides FormInterface::buildForm 13
EntityForm::getBaseFormId public function Returns a string identifying the base form. Overrides BaseFormIdInterface::getBaseFormId 6
EntityForm::getEntity public function Gets the form entity. Overrides EntityFormInterface::getEntity
EntityForm::getEntityFromRouteMatch public function Determines which entity will be used by this form from a RouteMatch object. Overrides EntityFormInterface::getEntityFromRouteMatch 3
EntityForm::getFormId public function Returns a unique string identifying the form. Overrides FormInterface::getFormId 12
EntityForm::getOperation public function Gets the operation identifying the form. Overrides EntityFormInterface::getOperation
EntityForm::prepareInvokeAll protected function Invokes the specified prepare hook variant.
EntityForm::processForm public function Process callback: assigns weights and hides extra fields.
EntityForm::save public function Form submission handler for the 'save' action. Overrides EntityFormInterface::save 47
EntityForm::setEntity public function Sets the form entity. Overrides EntityFormInterface::setEntity
EntityForm::setEntityTypeManager public function Sets the entity type manager for this form. Overrides EntityFormInterface::setEntityTypeManager
EntityForm::setModuleHandler public function Sets the module handler for this form. Overrides EntityFormInterface::setModuleHandler
EntityForm::setOperation public function Sets the operation for this form. Overrides EntityFormInterface::setOperation
FormBase::$configFactory protected property The config factory. 3
FormBase::$requestStack protected property The request stack. 1
FormBase::$routeMatch protected property The route match.
FormBase::config protected function Retrieves a configuration object.
FormBase::configFactory protected function Gets the config factory for this form. 3
FormBase::container private function Returns the service container.
FormBase::currentUser protected function Gets the current user.
FormBase::getRequest protected function Gets the request object.
FormBase::getRouteMatch protected function Gets the route match.
FormBase::logger protected function Gets the logger for a specific channel.
FormBase::redirect protected function Returns a redirect response object for the specified route.
FormBase::resetConfigFactory public function Resets the configuration factory.
FormBase::setConfigFactory public function Sets the config factory for this form.
FormBase::setRequestStack public function Sets the request stack object to use.
LoggerChannelTrait::$loggerFactory protected property The logger channel factory service.
LoggerChannelTrait::getLogger protected function Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory public function Injects the logger channel factory.
MessengerTrait::$messenger protected property The messenger. 27
MessengerTrait::messenger public function Gets the messenger. 27
MessengerTrait::setMessenger public function Sets the messenger.
RedirectDestinationTrait::$redirectDestination protected property The redirect destination service. 1
RedirectDestinationTrait::getDestinationArray protected function Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination protected function Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination public function Sets the redirect destination service.
StringTranslationTrait::$stringTranslation protected property The string translation service. 4
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.