class SearchPageForm in Drupal 9

Provides a search form for site wide search.

Search plugins can define method searchFormAlter() to alter the form. If they have additional or substitute fields, they will need to override the form submit, making sure to redirect with a GET parameter of 'keys' included, to trigger the search being processed by the controller, and adding in any additional query parameters they need to execute search.

@internal

Hierarchy

• class \Drupal\Core\Form\FormBase implements ContainerInjectionInterface, FormInterface uses DependencySerializationTrait, LoggerChannelTrait, MessengerTrait, RedirectDestinationTrait, StringTranslationTrait
  • class \Drupal\search\Form\SearchPageForm

1 file declares its use of SearchPageForm

SearchController.php in core/modules/search/src/Controller/SearchController.php

File

core/modules/search/src/Form/SearchPageForm.php, line 21

Namespace

Drupal\search\Form

class SearchPageForm extends FormBase {

  /**
   * The search page entity.
   *
   * @var \Drupal\search\SearchPageInterface
   */
  protected $entity;

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'search_form';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, SearchPageInterface $search_page = NULL) {
    $this->entity = $search_page;
    $plugin = $this->entity
      ->getPlugin();
    $form_state
      ->set('search_page_id', $this->entity
      ->id());
    $form['basic'] = [
      '#type' => 'container',
      '#attributes' => [
        'class' => [
          'container-inline',
        ],
      ],
    ];
    $form['basic']['keys'] = [
      '#type' => 'search',
      '#title' => $this
        ->t('Enter your keywords'),
      '#default_value' => $plugin
        ->getKeywords(),
      '#size' => 30,
      '#maxlength' => 255,
    ];

    // processed_keys is used to coordinate keyword passing between other forms
    // that hook into the basic search form.
    $form['basic']['processed_keys'] = [
      '#type' => 'value',
      '#value' => '',
    ];
    $form['basic']['submit'] = [
      '#type' => 'submit',
      '#value' => $this
        ->t('Search'),
    ];
    $form['help_link'] = [
      '#type' => 'link',
      '#url' => new Url('search.help_' . $this->entity
        ->id()),
      '#title' => $this
        ->t('About searching'),
      '#options' => [
        'attributes' => [
          'class' => 'search-help-link',
        ],
      ],
    ];

    // Allow the plugin to add to or alter the search form.
    $plugin
      ->searchFormAlter($form, $form_state);
    return $form;
  }

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

    // Redirect to the search page with keywords in the GET parameters.
    // Plugins with additional search parameters will need to provide their
    // own form submit handler to replace this, so they can put their values
    // into the GET as well. If so, make sure to put 'keys' into the GET
    // parameters so that the search results generation is triggered.
    $query = $this->entity
      ->getPlugin()
      ->buildSearchUrlQuery($form_state);
    $route = 'search.view_' . $form_state
      ->get('search_page_id');
    $form_state
      ->setRedirect($route, [], [
      'query' => $query,
    ]);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property
DependencySerializationTrait::$_serviceIds	protected	property
DependencySerializationTrait::__sleep	public	function		2
DependencySerializationTrait::__wakeup	public	function		2
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.
SearchPageForm::$entity	protected	property	The search page entity.
SearchPageForm::buildForm	public	function	Form constructor. Overrides FormInterface::buildForm
SearchPageForm::getFormId	public	function	Returns a unique string identifying the form. Overrides FormInterface::getFormId
SearchPageForm::submitForm	public	function	Form submission handler. Overrides FormInterface::submitForm
StringTranslationTrait::$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.