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class LanguageAddForm in Zircon Profile 8

Same name and namespace in other branches
  1. 8.0 core/modules/language/src/Form/LanguageAddForm.php \Drupal\language\Form\LanguageAddForm

Controller for language addition forms.

Hierarchy

Expanded class hierarchy of LanguageAddForm

File

core/modules/language/src/Form/LanguageAddForm.php, line 18
Contains \Drupal\language\Form\LanguageAddForm.

Namespace

Drupal\language\Form
View source 
class LanguageAddForm extends LanguageFormBase {

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

    // @todo Remove in favour of base method.
    return 'language_admin_add_form';
  }

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {
    $form['#title'] = $this
      ->t('Add language');
    $predefined_languages = $this->languageManager
      ->getStandardLanguageListWithoutConfigured();
    $predefined_languages['custom'] = $this
      ->t('Custom language...');
    $predefined_default = $form_state
      ->getValue('predefined_langcode', key($predefined_languages));
    $form['predefined_langcode'] = array(
      '#type' => 'select',
      '#title' => $this
        ->t('Language name'),
      '#default_value' => $predefined_default,
      '#options' => $predefined_languages,
    );
    $form['predefined_submit'] = array(
      '#type' => 'submit',
      '#value' => $this
        ->t('Add language'),
      '#name' => 'add_language',
      '#limit_validation_errors' => array(
        array(
          'predefined_langcode',
        ),
        array(
          'predefined_submit',
        ),
      ),
      '#states' => array(
        'invisible' => array(
          'select#edit-predefined-langcode' => array(
            'value' => 'custom',
          ),
        ),
      ),
      '#validate' => array(
        '::validatePredefined',
      ),
      '#submit' => array(
        '::submitForm',
        '::save',
      ),
      '#button_type' => 'primary',
    );
    $custom_language_states_conditions = array(
      'select#edit-predefined-langcode' => array(
        'value' => 'custom',
      ),
    );
    $form['custom_language'] = array(
      '#type' => 'container',
      '#states' => array(
        'visible' => $custom_language_states_conditions,
      ),
    );
    $this
      ->commonForm($form['custom_language']);
    $form['custom_language']['langcode']['#states'] = array(
      'required' => $custom_language_states_conditions,
    );
    $form['custom_language']['label']['#states'] = array(
      'required' => $custom_language_states_conditions,
    );
    $form['custom_language']['submit'] = array(
      '#type' => 'submit',
      '#value' => $this
        ->t('Add custom language'),
      '#name' => 'add_custom_language',
      '#validate' => array(
        '::validateCustom',
      ),
      '#submit' => array(
        '::submitForm',
        '::save',
      ),
    );
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    parent::save($form, $form_state);
    $t_args = array(
      '%language' => $this->entity
        ->label(),
      '%langcode' => $this->entity
        ->id(),
    );
    $this
      ->logger('language')
      ->notice('The %language (%langcode) language has been created.', $t_args);
    drupal_set_message($this
      ->t('The language %language has been created and can now be used.', $t_args));
    if ($this->moduleHandler
      ->moduleExists('block')) {

      // Tell the user they have the option to add a language switcher block
      // to their theme so they can switch between the languages.
      drupal_set_message($this
        ->t('Use one of the language switcher blocks to allow site visitors to switch between languages. You can enable these blocks on the <a href=":block-admin">block administration page</a>.', array(
        ':block-admin' => $this
          ->url('block.admin_display'),
      )));
    }
    $form_state
      ->setRedirectUrl($this->entity
      ->urlInfo('collection'));
  }

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

    // No actions needed.
    return array();
  }

  /**
   * Validates the language addition form on custom language button.
   */
  public function validateCustom(array $form, FormStateInterface $form_state) {
    if ($form_state
      ->getValue('predefined_langcode') == 'custom') {
      $langcode = $form_state
        ->getValue('langcode');

      // Reuse the editing form validation routine if we add a custom language.
      $this
        ->validateCommon($form['custom_language'], $form_state);
      if ($language = $this->languageManager
        ->getLanguage($langcode)) {
        $form_state
          ->setErrorByName('langcode', $this
          ->t('The language %language (%langcode) already exists.', array(
          '%language' => $language
            ->getName(),
          '%langcode' => $langcode,
        )));
      }
    }
    else {
      $form_state
        ->setErrorByName('predefined_langcode', $this
        ->t('Use the <em>Add language</em> button to save a predefined language.'));
    }
  }

  /**
   * Element specific validator for the Add language button.
   */
  public function validatePredefined($form, FormStateInterface $form_state) {
    $langcode = $form_state
      ->getValue('predefined_langcode');
    if ($langcode == 'custom') {
      $form_state
        ->setErrorByName('predefined_langcode', $this
        ->t('Fill in the language details and save the language with <em>Add custom language</em>.'));
    }
    else {
      if ($language = $this->languageManager
        ->getLanguage($langcode)) {
        $form_state
          ->setErrorByName('predefined_langcode', $this
          ->t('The language %language (%langcode) already exists.', array(
          '%language' => $language
            ->getName(),
          '%langcode' => $langcode,
        )));
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  protected function copyFormValuesToEntity(EntityInterface $entity, array $form, FormStateInterface $form_state) {
    $langcode = $form_state
      ->getValue('predefined_langcode');
    if ($langcode == 'custom') {
      $langcode = $form_state
        ->getValue('langcode');
      $label = $form_state
        ->getValue('label');
      $direction = $form_state
        ->getValue('direction');
    }
    else {
      $standard_languages = LanguageManager::getStandardLanguageList();
      $label = $standard_languages[$langcode][0];
      $direction = isset($standard_languages[$langcode][2]) ? $standard_languages[$langcode][2] : ConfigurableLanguage::DIRECTION_LTR;
    }
    $entity
      ->set('id', $langcode);
    $entity
      ->set('label', $label);
    $entity
      ->set('direction', $direction);

    // There is no weight on the edit form. Fetch all configurable languages
    // ordered by weight and set the new language to be placed after them.
    $languages = \Drupal::languageManager()
      ->getLanguages(ConfigurableLanguage::STATE_CONFIGURABLE);
    $last_language = end($languages);
    $entity
      ->setWeight($last_language
      ->getWeight() + 1);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
EntityForm::$entity protected property The entity being used by this form. 15
EntityForm::$entityManager Deprecated protected property The entity manager. 7
EntityForm::$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::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 2
EntityForm::buildForm public function Form constructor. Overrides FormInterface::buildForm 7
EntityForm::getBaseFormId public function Returns a string identifying the base form. Overrides BaseFormIdInterface::getBaseFormId 4
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 2
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. 5
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::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 18
FormBase::$configFactory protected property The config factory. 3
FormBase::$loggerFactory protected property The logger factory.
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::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 64
LanguageAddForm::actions public function Returns an array of supported actions for the current entity form. Overrides EntityForm::actions
LanguageAddForm::copyFormValuesToEntity protected function Copies top-level form values to entity properties Overrides EntityForm::copyFormValuesToEntity
LanguageAddForm::form public function Gets the actual form array to be built. Overrides EntityForm::form
LanguageAddForm::getFormId public function Returns a unique string identifying the form. Overrides EntityForm::getFormId
LanguageAddForm::save public function Form submission handler for the 'save' action. Overrides EntityForm::save
LanguageAddForm::validateCustom public function Validates the language addition form on custom language button.
LanguageAddForm::validatePredefined public function Element specific validator for the Add language button.
LanguageFormBase::$languageManager protected property The configurable language manager.
LanguageFormBase::commonForm public function Common elements of the language addition and editing form.
LanguageFormBase::create public static function Instantiates a new instance of this class. Overrides FormBase::create
LanguageFormBase::validateCommon public function Validates the language editing element.
LanguageFormBase::__construct public function Constructs a ContentEntityForm object.
LinkGeneratorTrait::$linkGenerator protected property The link generator. 1
LinkGeneratorTrait::getLinkGenerator protected function Returns the link generator.
LinkGeneratorTrait::l protected function Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator public function Sets the link generator service.
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. 2
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 protected function Generates a URL or path for a specific route based on the given parameters.