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class PagerTestController in Drupal 8

Same name and namespace in other branches
  1. 9 core/modules/system/tests/modules/pager_test/src/Controller/PagerTestController.php \Drupal\pager_test\Controller\PagerTestController
  2. 10 core/modules/system/tests/modules/pager_test/src/Controller/PagerTestController.php \Drupal\pager_test\Controller\PagerTestController

Controller routine for testing the pager.

Hierarchy

Expanded class hierarchy of PagerTestController

File

core/modules/system/tests/modules/pager_test/src/Controller/PagerTestController.php, line 15

Namespace

Drupal\pager_test\Controller
View source
class PagerTestController extends ControllerBase implements TrustedCallbackInterface {

  /**
   * The pager request service.
   *
   * @var \Drupal\Core\Pager\PagerParametersInterface
   */
  protected $pagerParams;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('pager.parameters'));
  }

  /**
   * Construct a new PagerTestController object.
   *
   * @param \Drupal\Core\Pager\PagerParametersInterface $pager_params
   *   The pager parameters.
   */
  public function __construct(PagerParametersInterface $pager_params) {
    $this->pagerParams = $pager_params;
  }

  /**
   * Builds a render array for a pageable test table.
   *
   * @param int $element
   *   The pager element to be used for paging.
   * @param int $limit
   *   The limit of rows per page for the specified element.
   *
   * @return array
   *   A render array.
   */
  protected function buildTestTable($element, $limit) {
    $header = [
      [
        'data' => 'wid',
      ],
      [
        'data' => 'type',
      ],
      [
        'data' => 'timestamp',
      ],
    ];
    $query = Database::getConnection()
      ->select('watchdog', 'd')
      ->extend(PagerSelectExtender::class)
      ->element($element);
    $result = $query
      ->fields('d', [
      'wid',
      'type',
      'timestamp',
    ])
      ->limit($limit)
      ->orderBy('d.wid')
      ->execute();
    $rows = [];
    foreach ($result as $row) {
      $rows[] = [
        'data' => (array) $row,
      ];
    }
    return [
      '#theme' => 'table',
      '#header' => $header,
      '#rows' => $rows,
      '#empty' => $this
        ->t("There are no watchdog records found in the db"),
    ];
  }

  /**
   * Returns a pager with 'parameters' variable.
   *
   * The 'pager_calls' parameter counts the calls to the pager, subsequent
   * to the initial call.
   */
  public function queryParameters() {

    // Example query.
    $build['pager_table_0'] = $this
      ->buildTestTable(0, 5);

    // Counter of calls to the current pager.
    $query_params = $this->pagerParams
      ->getQueryParameters();
    $pager_calls = isset($query_params['pager_calls']) ? $query_params['pager_calls'] ? $query_params['pager_calls'] : 0 : 0;
    $build['l_pager_pager_0'] = [
      '#markup' => $this
        ->t('Pager calls: @pager_calls', [
        '@pager_calls' => $pager_calls,
      ]),
    ];

    // Pager.
    $build['pager_pager_0'] = [
      '#type' => 'pager',
      '#element' => 0,
      '#parameters' => [
        'pager_calls' => ++$pager_calls,
      ],
      '#pre_render' => [
        'Drupal\\pager_test\\Controller\\PagerTestController::showPagerCacheContext',
      ],
    ];
    return $build;
  }

  /**
   * Returns a page with multiple pagers.
   */
  public function multiplePagers() {

    // Build three tables with same query and different pagers.
    $build['pager_table_0'] = $this
      ->buildTestTable(0, 20);
    $build['pager_pager_0'] = [
      '#type' => 'container',
      '#attributes' => [
        'class' => [
          'test-pager-0',
        ],
      ],
      'pager' => [
        '#type' => 'pager',
        '#element' => 0,
      ],
    ];
    $build['pager_table_1'] = $this
      ->buildTestTable(1, 20);
    $build['pager_pager_1'] = [
      '#type' => 'container',
      '#attributes' => [
        'class' => [
          'test-pager-1',
        ],
      ],
      'pager' => [
        '#type' => 'pager',
        '#element' => 1,
      ],
    ];
    $build['pager_table_4'] = $this
      ->buildTestTable(4, 20);
    $build['pager_pager_4'] = [
      '#type' => 'container',
      '#attributes' => [
        'class' => [
          'test-pager-4',
        ],
      ],
      'pager' => [
        '#type' => 'pager',
        '#element' => 4,
      ],
    ];
    return $build;
  }

  /**
   * #pre_render callback for #type => pager that shows the pager cache context.
   */
  public static function showPagerCacheContext(array $pager) {
    \Drupal::messenger()
      ->addStatus(\Drupal::service('cache_contexts_manager')
      ->convertTokensToKeys([
      'url.query_args.pagers:' . $pager['#element'],
    ])
      ->getKeys()[0]);
    return $pager;
  }

  /**
   * {@inheritdoc}
   */
  public static function trustedCallbacks() {
    return [
      'showPagerCacheContext',
    ];
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ControllerBase::$configFactory protected property The configuration factory.
ControllerBase::$currentUser protected property The current user service. 1
ControllerBase::$entityFormBuilder protected property The entity form builder.
ControllerBase::$entityManager protected property The entity manager.
ControllerBase::$entityTypeManager protected property The entity type manager.
ControllerBase::$formBuilder protected property The form builder. 2
ControllerBase::$keyValue protected property The key-value storage. 1
ControllerBase::$languageManager protected property The language manager. 1
ControllerBase::$moduleHandler protected property The module handler. 2
ControllerBase::$stateService protected property The state service.
ControllerBase::cache protected function Returns the requested cache bin.
ControllerBase::config protected function Retrieves a configuration object.
ControllerBase::container private function Returns the service container.
ControllerBase::currentUser protected function Returns the current user. 1
ControllerBase::entityFormBuilder protected function Retrieves the entity form builder.
ControllerBase::entityManager Deprecated protected function Retrieves the entity manager service.
ControllerBase::entityTypeManager protected function Retrieves the entity type manager.
ControllerBase::formBuilder protected function Returns the form builder service. 2
ControllerBase::keyValue protected function Returns a key/value storage collection. 1
ControllerBase::languageManager protected function Returns the language manager service. 1
ControllerBase::moduleHandler protected function Returns the module handler. 2
ControllerBase::redirect protected function Returns a redirect response object for the specified route. Overrides UrlGeneratorTrait::redirect
ControllerBase::state protected function Returns the state storage service.
LinkGeneratorTrait::$linkGenerator protected property The link generator. 1
LinkGeneratorTrait::getLinkGenerator Deprecated protected function Returns the link generator.
LinkGeneratorTrait::l Deprecated protected function Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator Deprecated public function Sets the link generator service.
LoggerChannelTrait::$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.
MessengerTrait::$messenger protected property The messenger. 29
MessengerTrait::messenger public function Gets the messenger. 29
MessengerTrait::setMessenger public function Sets the messenger.
PagerTestController::$pagerParams protected property The pager request service.
PagerTestController::buildTestTable protected function Builds a render array for a pageable test table.
PagerTestController::create public static function Instantiates a new instance of this class. Overrides ControllerBase::create
PagerTestController::multiplePagers public function Returns a page with multiple pagers.
PagerTestController::queryParameters public function Returns a pager with 'parameters' variable.
PagerTestController::showPagerCacheContext public static function #pre_render callback for #type => pager that shows the pager cache context.
PagerTestController::trustedCallbacks public static function Lists the trusted callbacks provided by the implementing class. Overrides TrustedCallbackInterface::trustedCallbacks
PagerTestController::__construct public function Construct a new PagerTestController object.
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. 1
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.
TrustedCallbackInterface::THROW_EXCEPTION constant Untrusted callbacks throw exceptions.
TrustedCallbackInterface::TRIGGER_SILENCED_DEPRECATION constant Untrusted callbacks trigger silenced E_USER_DEPRECATION errors.
TrustedCallbackInterface::TRIGGER_WARNING constant Untrusted callbacks trigger E_USER_WARNING errors.
UrlGeneratorTrait::$urlGenerator protected property The url generator.
UrlGeneratorTrait::getUrlGenerator Deprecated protected function Returns the URL generator service.
UrlGeneratorTrait::setUrlGenerator Deprecated 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.