1. 8.5.x core/lib/Drupal/Core/Entity/EntityForm.php EntityForm
  2. 8.0.x core/lib/Drupal/Core/Entity/EntityForm.php EntityForm
  3. 8.1.x core/lib/Drupal/Core/Entity/EntityForm.php EntityForm
  4. 8.2.x core/lib/Drupal/Core/Entity/EntityForm.php EntityForm
  5. 8.3.x core/lib/Drupal/Core/Entity/EntityForm.php EntityForm
  6. 8.4.x core/lib/Drupal/Core/Entity/EntityForm.php EntityForm
  7. 8.6.x core/lib/Drupal/Core/Entity/EntityForm.php EntityForm

Base class for entity forms.

Hierarchy

Expanded class hierarchy of EntityForm

Related topics

27 files declare their use of EntityForm
ActionFormBase.php in core/modules/action/src/ActionFormBase.php
BlockForm.php in core/modules/block/src/BlockForm.php
CommentTypeForm.php in core/modules/comment/src/CommentTypeForm.php
ConfigTestForm.php in core/modules/config/tests/config_test/src/ConfigTestForm.php
ContactFormEditForm.php in core/modules/contact/src/ContactFormEditForm.php

... See full list

File

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

Namespace

Drupal\Core\Entity
View source
class EntityForm extends FormBase implements EntityFormInterface {

  /**
   * The name of the current operation.
   *
   * Subclasses may use this to implement different behaviors depending on its
   * value.
   *
   * @var string
   */
  protected $operation;

  /**
   * The module handler service.
   *
   * @var \Drupal\Core\Extension\ModuleHandlerInterface
   */
  protected $moduleHandler;

  /**
   * The entity manager.
   *
   * @var \Drupal\Core\Entity\EntityManagerInterface
   *
   * @deprecated in Drupal 8.0.0, will be removed before Drupal 9.0.0.
   *
   * @see https://www.drupal.org/node/2549139
   */
  protected $entityManager;

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

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

  /**
   * {@inheritdoc}
   */
  public function setOperation($operation) {

    // If NULL is passed, do not overwrite the operation.
    if ($operation) {
      $this->operation = $operation;
    }
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getBaseFormId() {

    // Assign ENTITYTYPE_form as base form ID to invoke corresponding
    // hook_form_alter(), #validate, #submit, and #theme callbacks, but only if
    // it is different from the actual form ID, since callbacks would be invoked
    // twice otherwise.
    $base_form_id = $this->entity
      ->getEntityTypeId() . '_form';
    if ($base_form_id == $this
      ->getFormId()) {
      $base_form_id = NULL;
    }
    return $base_form_id;
  }

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    $form_id = $this->entity
      ->getEntityTypeId();
    if ($this->entity
      ->getEntityType()
      ->hasKey('bundle')) {
      $form_id .= '_' . $this->entity
        ->bundle();
    }
    if ($this->operation != 'default') {
      $form_id = $form_id . '_' . $this->operation;
    }
    return $form_id . '_form';
  }

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

    // During the initial form build, add this form object to the form state and
    // allow for initial preparation before form building and processing.
    if (!$form_state
      ->has('entity_form_initialized')) {
      $this
        ->init($form_state);
    }

    // Ensure that edit forms have the correct cacheability metadata so they can
    // be cached.
    if (!$this->entity
      ->isNew()) {
      \Drupal::service('renderer')
        ->addCacheableDependency($form, $this->entity);
    }

    // Retrieve the form array using the possibly updated entity in form state.
    $form = $this
      ->form($form, $form_state);

    // Retrieve and add the form actions array.
    $actions = $this
      ->actionsElement($form, $form_state);
    if (!empty($actions)) {
      $form['actions'] = $actions;
    }
    return $form;
  }

  /**
   * Initialize the form state and the entity before the first form build.
   */
  protected function init(FormStateInterface $form_state) {

    // Flag that this form has been initialized.
    $form_state
      ->set('entity_form_initialized', TRUE);

    // Prepare the entity to be presented in the entity form.
    $this
      ->prepareEntity();

    // Invoke the prepare form hooks.
    $this
      ->prepareInvokeAll('entity_prepare_form', $form_state);
    $this
      ->prepareInvokeAll($this->entity
      ->getEntityTypeId() . '_prepare_form', $form_state);
  }

  /**
   * Gets the actual form array to be built.
   *
   * @see \Drupal\Core\Entity\EntityForm::processForm()
   * @see \Drupal\Core\Entity\EntityForm::afterBuild()
   */
  public function form(array $form, FormStateInterface $form_state) {

    // Add #process and #after_build callbacks.
    $form['#process'][] = '::processForm';
    $form['#after_build'][] = '::afterBuild';
    return $form;
  }

  /**
   * Process callback: assigns weights and hides extra fields.
   *
   * @see \Drupal\Core\Entity\EntityForm::form()
   */
  public function processForm($element, FormStateInterface $form_state, $form) {

    // If the form is cached, process callbacks may not have a valid reference
    // to the entity object, hence we must restore it.
    $this->entity = $form_state
      ->getFormObject()
      ->getEntity();
    return $element;
  }

  /**
   * Form element #after_build callback: Updates the entity with submitted data.
   *
   * Updates the internal $this->entity object with submitted values when the
   * form is being rebuilt (e.g. submitted via AJAX), so that subsequent
   * processing (e.g. AJAX callbacks) can rely on it.
   */
  public function afterBuild(array $element, FormStateInterface $form_state) {

    // Rebuild the entity if #after_build is being called as part of a form
    // rebuild, i.e. if we are processing input.
    if ($form_state
      ->isProcessingInput()) {
      $this->entity = $this
        ->buildEntity($element, $form_state);
    }
    return $element;
  }

  /**
   * Returns the action form element for the current entity form.
   */
  protected function actionsElement(array $form, FormStateInterface $form_state) {
    $element = $this
      ->actions($form, $form_state);
    if (isset($element['delete'])) {

      // Move the delete action as last one, unless weights are explicitly
      // provided.
      $delete = $element['delete'];
      unset($element['delete']);
      $element['delete'] = $delete;
      $element['delete']['#button_type'] = 'danger';
    }
    if (isset($element['submit'])) {

      // Give the primary submit button a #button_type of primary.
      $element['submit']['#button_type'] = 'primary';
    }
    $count = 0;
    foreach (Element::children($element) as $action) {
      $element[$action] += [
        '#weight' => ++$count * 5,
      ];
    }
    if (!empty($element)) {
      $element['#type'] = 'actions';
    }
    return $element;
  }

  /**
   * Returns an array of supported actions for the current entity form.
   *
   * @todo Consider introducing a 'preview' action here, since it is used by
   *   many entity types.
   */
  protected function actions(array $form, FormStateInterface $form_state) {

    // @todo Consider renaming the action key from submit to save. The impacts
    //   are hard to predict. For example, see
    //   \Drupal\language\Element\LanguageConfiguration::processLanguageConfiguration().
    $actions['submit'] = [
      '#type' => 'submit',
      '#value' => $this
        ->t('Save'),
      '#submit' => [
        '::submitForm',
        '::save',
      ],
    ];
    if (!$this->entity
      ->isNew() && $this->entity
      ->hasLinkTemplate('delete-form')) {
      $route_info = $this->entity
        ->urlInfo('delete-form');
      if ($this
        ->getRequest()->query
        ->has('destination')) {
        $query = $route_info
          ->getOption('query');
        $query['destination'] = $this
          ->getRequest()->query
          ->get('destination');
        $route_info
          ->setOption('query', $query);
      }
      $actions['delete'] = [
        '#type' => 'link',
        '#title' => $this
          ->t('Delete'),
        '#access' => $this->entity
          ->access('delete'),
        '#attributes' => [
          'class' => [
            'button',
            'button--danger',
          ],
        ],
      ];
      $actions['delete']['#url'] = $route_info;
    }
    return $actions;
  }

  /**
   * {@inheritdoc}
   *
   * 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 can be updated, this way the subsequently
   * invoked handlers can retrieve a regular entity object to act on. Generally
   * this method should not be overridden unless the entity requires the same
   * preparation for two actions, see \Drupal\comment\CommentForm for an example
   * with the save and preview actions.
   *
   * @param array $form
   *   An associative array containing the structure of the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {

    // Remove button and internal Form API values from submitted values.
    $form_state
      ->cleanValues();
    $this->entity = $this
      ->buildEntity($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    return $this->entity
      ->save();
  }

  /**
   * {@inheritdoc}
   */
  public function buildEntity(array $form, FormStateInterface $form_state) {
    $entity = clone $this->entity;
    $this
      ->copyFormValuesToEntity($entity, $form, $form_state);

    // Invoke all specified builders for copying form values to entity
    // properties.
    if (isset($form['#entity_builders'])) {
      foreach ($form['#entity_builders'] as $function) {
        call_user_func_array($form_state
          ->prepareCallback($function), [
          $entity
            ->getEntityTypeId(),
          $entity,
          &$form,
          &$form_state,
        ]);
      }
    }
    return $entity;
  }

  /**
   * Copies top-level form values to entity properties
   *
   * This should not change existing entity properties that are not being edited
   * by this form.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity the current form should operate upon.
   * @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 copyFormValuesToEntity(EntityInterface $entity, array $form, FormStateInterface $form_state) {
    $values = $form_state
      ->getValues();
    if ($this->entity instanceof EntityWithPluginCollectionInterface) {

      // Do not manually update values represented by plugin collections.
      $values = array_diff_key($values, $this->entity
        ->getPluginCollections());
    }

    // @todo: This relies on a method that only exists for config and content
    //   entities, in a different way. Consider moving this logic to a config
    //   entity specific implementation.
    foreach ($values as $key => $value) {
      $entity
        ->set($key, $value);
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getEntity() {
    return $this->entity;
  }

  /**
   * {@inheritdoc}
   */
  public function setEntity(EntityInterface $entity) {
    $this->entity = $entity;
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getEntityFromRouteMatch(RouteMatchInterface $route_match, $entity_type_id) {
    if ($route_match
      ->getRawParameter($entity_type_id) !== NULL) {
      $entity = $route_match
        ->getParameter($entity_type_id);
    }
    else {
      $values = [];

      // If the entity has bundles, fetch it from the route match.
      $entity_type = $this->entityTypeManager
        ->getDefinition($entity_type_id);
      if ($bundle_key = $entity_type
        ->getKey('bundle')) {
        if (($bundle_entity_type_id = $entity_type
          ->getBundleEntityType()) && $route_match
          ->getRawParameter($bundle_entity_type_id)) {
          $values[$bundle_key] = $route_match
            ->getParameter($bundle_entity_type_id)
            ->id();
        }
        elseif ($route_match
          ->getRawParameter($bundle_key)) {
          $values[$bundle_key] = $route_match
            ->getParameter($bundle_key);
        }
      }
      $entity = $this->entityTypeManager
        ->getStorage($entity_type_id)
        ->create($values);
    }
    return $entity;
  }

  /**
   * Prepares the entity object before the form is built first.
   */
  protected function prepareEntity() {
  }

  /**
   * Invokes the specified prepare hook variant.
   *
   * @param string $hook
   *   The hook variant name.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  protected function prepareInvokeAll($hook, FormStateInterface $form_state) {
    $implementations = $this->moduleHandler
      ->getImplementations($hook);
    foreach ($implementations as $module) {
      $function = $module . '_' . $hook;
      if (function_exists($function)) {

        // Ensure we pass an updated translation object and form display at
        // each invocation, since they depend on form state which is alterable.
        $args = [
          $this->entity,
          $this->operation,
          &$form_state,
        ];
        call_user_func_array($function, $args);
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getOperation() {
    return $this->operation;
  }

  /**
   * {@inheritdoc}
   */
  public function setModuleHandler(ModuleHandlerInterface $module_handler) {
    $this->moduleHandler = $module_handler;
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function setEntityManager(EntityManagerInterface $entity_manager) {
    $this->entityManager = $entity_manager;
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function setEntityTypeManager(EntityTypeManagerInterface $entity_type_manager) {
    $this->entityTypeManager = $entity_type_manager;
    return $this;
  }

}

Members

Contains filters are case sensitive
Namesort descending Modifiers Type Description Overrides
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function Prevents serializing any properties.
DependencySerializationTrait::__wakeup public function
EntityForm::$entity protected property The entity being used by this form.
EntityForm::$entityManager Deprecated protected property The entity manager.
EntityForm::$entityTypeManager protected property The entity type manager.
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.
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::buildEntity public function Builds an updated entity object based upon the submitted form values. Overrides EntityFormInterface::buildEntity
EntityForm::buildForm public function Form constructor. Overrides FormInterface::buildForm
EntityForm::copyFormValuesToEntity protected function Copies top-level form values to entity properties
EntityForm::form public function Gets the actual form array to be built.
EntityForm::getBaseFormId public function Returns a string identifying the base form. Overrides BaseFormIdInterface::getBaseFormId
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
EntityForm::getFormId public function Returns a unique string identifying the form. Overrides FormInterface::getFormId
EntityForm::getOperation public function Gets the operation identifying the form. Overrides EntityFormInterface::getOperation
EntityForm::init protected function Initialize the form state and the entity before the first form build.
EntityForm::prepareEntity protected function Prepares the entity object before the form is built first.
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
EntityForm::setEntity public function Sets the form entity. Overrides EntityFormInterface::setEntity
EntityForm::setEntityManager public function Sets the entity manager for this form. Overrides EntityFormInterface::setEntityManager
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
EntityForm::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 FormInterface::submitForm
FormBase::$configFactory protected property The config factory.
FormBase::$requestStack protected property The request stack.
FormBase::$routeMatch protected property The route match.
FormBase::config protected function Retrieves a configuration object.
FormBase::configFactory protected function Gets the config factory for this form.
FormBase::container private function Returns the service container.
FormBase::create public static function Instantiates a new instance of this class. Overrides ContainerInjectionInterface::create
FormBase::currentUser protected function Gets the current user.
FormBase::getRequest protected function Gets the request object.
FormBase::getRouteMatch protected function Gets the route match.
FormBase::logger protected function Gets the logger for a specific channel.
FormBase::resetConfigFactory public function Resets the configuration factory.
FormBase::setConfigFactory public function Sets the config factory for this form.
FormBase::setRequestStack public function Sets the request stack object to use.
FormBase::validateForm public function Form validation handler. Overrides FormInterface::validateForm
LinkGeneratorTrait::$linkGenerator protected property The link generator.
LinkGeneratorTrait::getLinkGenerator protected function Returns the link generator.
LinkGeneratorTrait::l Deprecated protected function Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator public function Sets the link generator service.
LoggerChannelTrait::$loggerFactory protected property The logger channel factory service.
LoggerChannelTrait::getLogger protected function Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory public function Injects the logger channel factory.
RedirectDestinationTrait::$redirectDestination protected property The redirect destination service.
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::$stringTranslation protected property The string translation service.
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use.
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.
UrlGeneratorTrait::$urlGenerator protected property The url generator.
UrlGeneratorTrait::getUrlGenerator protected function Returns the URL generator service.
UrlGeneratorTrait::redirect protected function Returns a redirect response object for the specified route.
UrlGeneratorTrait::setUrlGenerator public function Sets the URL generator service.
UrlGeneratorTrait::url Deprecated protected function Generates a URL or path for a specific route based on the given parameters.