QuizViewBuilder.php in Quiz 8.6

Namespace

Drupal\quiz\View

File

src/View/QuizViewBuilder.php

<?php

namespace Drupal\quiz\View;

use Drupal;
use Drupal\Core\Entity\EntityViewBuilder;
use Drupal\quiz\Entity\Quiz;
use function _quiz_format_duration;
use function _quiz_get_quiz_name;
class QuizViewBuilder extends EntityViewBuilder {
  public function alterBuild(array &$build, Drupal\Core\Entity\EntityInterface $entity, Drupal\Core\Entity\Display\EntityViewDisplayInterface $display, $view_mode) {

    /* @var $entity Quiz */
    $stats = array(
      array(
        array(
          'header' => TRUE,
          'width' => '25%',
          'data' => t('Questions'),
        ),
        $entity
          ->getNumberOfQuestions(),
      ),
    );
    if ($entity
      ->get('show_attempt_stats')
      ->getString()) {
      $takes = $entity
        ->get('takes')
        ->getString() == 0 ? t('Unlimited') : $entity
        ->get('takes')
        ->getString();
      $stats[] = array(
        array(
          'header' => TRUE,
          'data' => t('Attempts allowed'),
        ),
        $takes,
      );
    }
    if ($entity
      ->get('quiz_date')
      ->isEmpty()) {
      $stats[] = array(
        array(
          'header' => TRUE,
          'data' => t('Available'),
        ),
        t('Always'),
      );
    }
    else {
      $stats[] = array(
        array(
          'header' => TRUE,
          'data' => t('Opens'),
        ),
        $entity
          ->get('quiz_date')->value,
      );
      $stats[] = array(
        array(
          'header' => TRUE,
          'data' => t('Closes'),
        ),
        $entity
          ->get('quiz_date')->end_value,
      );
    }
    if (!$entity
      ->get('pass_rate')
      ->isEmpty()) {
      $stats[] = array(
        array(
          'header' => TRUE,
          'data' => t('Pass rate'),
        ),
        $entity
          ->get('pass_rate')
          ->getString() . ' %',
      );
    }
    if (!$entity
      ->get('time_limit')
      ->isEmpty()) {
      $stats[] = array(
        array(
          'header' => TRUE,
          'data' => t('Time limit'),
        ),
        _quiz_format_duration($entity
          ->get('time_limit')
          ->getString()),
      );
    }
    $stats[] = array(
      array(
        'header' => TRUE,
        'data' => t('Backwards navigation'),
      ),
      $entity
        ->get('backwards_navigation') ? t('Allowed') : t('Forbidden'),
    );
    if ($display
      ->getComponent('stats')) {
      $build['stats'] = array(
        '#id' => 'quiz-view-table',
        '#theme' => 'table',
        '#rows' => $stats,
        '#weight' => -1,
      );
    }
    $available = $entity
      ->access('take', NULL, TRUE);

    // Check the permission before displaying start button.
    if ($available
      ->isAllowed()) {
      if (is_a($available, \Drupal\Core\Access\AccessResultReasonInterface::class)) {

        // There's a friendly success message available. Only display if we are
        // viewing the quiz.
        // @todo does not work because we cannot pass allowed reason, only
        // forbidden reason. The message is displayed in quiz_quiz_access().
        if (\Drupal::routeMatch() == 'entity.quiz.canonical') {
          Drupal::messenger()
            ->addMessage($available
            ->getReason());
        }
      }

      // Add a link to the take tab.
      $link = Drupal\Core\Link::createFromRoute(t('Start @quiz', array(
        '@quiz' => _quiz_get_quiz_name(),
      )), 'entity.quiz.take', [
        'quiz' => $entity
          ->id(),
      ], [
        'attributes' => [
          'class' => array(
            'quiz-start-link',
          ),
        ],
      ]);
      $build['take'] = array(
        '#cache' => [
          'max-age' => 0,
        ],
        '#markup' => $link
          ->toString(),
        '#weight' => 2,
      );
    }
    else {
      $build['take'] = array(
        '#cache' => [
          'max-age' => 0,
        ],
        '#markup' => '<div class="quiz-not-available">' . $available
          ->getReason() . '</div>',
        '#weight' => 2,
      );
    }
  }

}

Classes

Name	Description
QuizViewBuilder