You are here

Home » API reference » Examples for Developers 3.x » RobotDeleteForm.php

class RobotDeleteForm in Examples for Developers 3.x

Same name and namespace in other branches
  1. 8 config_entity_example/src/Form/RobotDeleteForm.php \Drupal\config_entity_example\Form\RobotDeleteForm

Class RobotDeleteForm.

Provides a confirm form for deleting the entity. This is different from the add and edit forms as it does not inherit from RobotFormBase. The reason for this is that we do not need to build the same form. Instead, we present the user with a simple yes/no question. For this reason, we derive from EntityConfirmFormBase instead.

Hierarchy

Expanded class hierarchy of RobotDeleteForm

Related topics

Example: Config Entity
Implement a Config Entity.

File

modules/config_entity_example/src/Form/RobotDeleteForm.php, line 20

Namespace

Drupal\config_entity_example\Form
View source 
class RobotDeleteForm extends EntityConfirmFormBase {

  /**
   * Gathers a confirmation question.
   *
   * The question is used as a title in our confirm form. For delete confirm
   * forms, this typically takes the form of "Are you sure you want to
   * delete...", including the entity label.
   *
   * @return string
   *   Translated string.
   */
  public function getQuestion() {
    return $this
      ->t('Are you sure you want to delete robot %label?', [
      '%label' => $this->entity
        ->label(),
    ]);
  }

  /**
   * Gather the confirmation text.
   *
   * The confirm text is used as the text in the button that confirms the
   * question posed by getQuestion().
   *
   * @return string
   *   Translated string.
   */
  public function getConfirmText() {
    return $this
      ->t('Delete Robot');
  }

  /**
   * Gets the cancel URL.
   *
   * Provides the URL to go to if the user cancels the action. For entity
   * delete forms, this is typically the route that points at the list
   * controller.
   *
   * @return \Drupal\Core\Url
   *   The URL to go to if the user cancels the deletion.
   */
  public function getCancelUrl() {
    return new Url('entity.robot.list');
  }

  /**
   * The submit handler for the confirm form.
   *
   * For entity delete forms, you use this to delete the entity in
   * $this->entity.
   *
   * @param array $form
   *   An associative array containing the structure of the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   An associative array containing the current state of the form.
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {

    // Delete the entity.
    $this->entity
      ->delete();

    // Set a message that the entity was deleted.
    $this
      ->messenger()
      ->addMessage($this
      ->t('Robot %label was deleted.', [
      '%label' => $this->entity
        ->label(),
    ]));

    // Redirect the user to the list controller when complete.
    $form_state
      ->setRedirectUrl($this
      ->getCancelUrl());
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DependencySerializationTrait::$_entityStorages protected property
DependencySerializationTrait::$_serviceIds protected property
DependencySerializationTrait::__sleep public function 2
DependencySerializationTrait::__wakeup public function 2
EntityConfirmFormBase::actions protected function Returns an array of supported actions for the current entity form. Overrides EntityForm::actions 1
EntityConfirmFormBase::buildForm public function Form constructor. Overrides EntityForm::buildForm 4
EntityConfirmFormBase::delete public function The delete() method is not used in EntityConfirmFormBase. This overrides the default implementation that redirects to the delete-form confirmation form.
EntityConfirmFormBase::getBaseFormId public function Returns a string identifying the base form. Overrides EntityForm::getBaseFormId
EntityConfirmFormBase::getCancelText public function Returns a caption for the link which cancels the action. Overrides ConfirmFormInterface::getCancelText
EntityConfirmFormBase::getDescription public function Returns additional text to display as a description. Overrides ConfirmFormInterface::getDescription 11
EntityConfirmFormBase::getFormName public function Returns the internal name used to refer to the confirmation item. Overrides ConfirmFormInterface::getFormName
EntityConfirmFormBase::save public function The save() method is not used in EntityConfirmFormBase. This overrides the default implementation that saves the entity. Overrides EntityForm::save
EntityForm::$entity protected property The entity being used by this form. 11
EntityForm::$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::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 3
EntityForm::copyFormValuesToEntity protected function Copies top-level form values to entity properties. 9
EntityForm::form public function Gets the actual form array to be built. 36
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::init protected function Initialize the form state and the entity before the first form build. 3
EntityForm::prepareEntity protected function Prepares the entity object before the form is built first. 3
EntityForm::prepareInvokeAll protected function Invokes the specified prepare hook variant.
EntityForm::processForm public function Process callback: assigns weights and hides extra fields.
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::$routeMatch protected property The route match.
FormBase::config protected function Retrieves a configuration object.
FormBase::configFactory protected function Gets the config factory for this form. 3
FormBase::container private function Returns the service container.
FormBase::create public static function Instantiates a new instance of this class. Overrides ContainerInjectionInterface::create 105
FormBase::currentUser protected function Gets the current user.
FormBase::getRequest protected function Gets the request object.
FormBase::getRouteMatch protected function Gets the route match.
FormBase::logger protected function Gets the logger for a specific channel.
FormBase::redirect protected function Returns a redirect response object for the specified route.
FormBase::resetConfigFactory public function Resets the configuration factory.
FormBase::setConfigFactory public function Sets the config factory for this form.
FormBase::setRequestStack public function Sets the request stack object to use.
FormBase::validateForm public function Form validation handler. Overrides FormInterface::validateForm 72
LoggerChannelTrait::$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.
RobotDeleteForm::getCancelUrl public function Gets the cancel URL. Overrides ConfirmFormInterface::getCancelUrl
RobotDeleteForm::getConfirmText public function Gather the confirmation text. Overrides EntityConfirmFormBase::getConfirmText
RobotDeleteForm::getQuestion public function Gathers a confirmation question. Overrides ConfirmFormInterface::getQuestion
RobotDeleteForm::submitForm public function The submit handler for the confirm form. Overrides EntityForm::submitForm
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.