TrueFalseResponse.php in Quiz 6.x

Namespace

Drupal\quiz_truefalse\Plugin\quiz\QuizQuestion

File

question_types/quiz_truefalse/src/Plugin/quiz/QuizQuestion/TrueFalseResponse.php

<?php

namespace Drupal\quiz_truefalse\Plugin\quiz\QuizQuestion;

use Drupal\quiz\Entity\QuizQuestionResponse;
use Drupal\quiz\Entity\QuizResultAnswer;
use Drupal\quiz\Util\QuizUtil;

/**
 * Extension of QuizQuestionResponse.
 */
class TrueFalseResponse extends QuizResultAnswer {

  /**
   * {@inheritdoc}
   */
  public function score(array $response) : ?int {
    $tfQuestion = $this
      ->getQuizQuestion();
    $this
      ->set('truefalse_answer', $response['answer']);
    $this
      ->setEvaluated();
    if ($response['answer'] == $tfQuestion
      ->getCorrectAnswer()) {
      return $tfQuestion
        ->getMaximumScore();
    }
    else {
      return 0;
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getResponse() {
    return $this
      ->get('truefalse_answer')
      ->getString();
  }

  /**
   * {@inheritdoc}
   */
  public function getFeedbackValues() : array {
    $answer = $this
      ->getResponse();
    if (is_numeric($answer)) {
      $answer = intval($answer);
    }
    $correct_answer = intval($this
      ->getQuizQuestion()
      ->getCorrectAnswer());
    $data = [];
    $data[] = [
      'choice' => t('True'),
      'attempt' => $answer === 1 ? QuizUtil::icon('selected') : '',
      'correct' => $answer === 1 ? QuizUtil::icon($correct_answer ? 'correct' : 'incorrect') : '',
      'score' => intval($correct_answer === 1 && $answer === 1),
      'answer_feedback' => '',
      'solution' => $correct_answer === 1 ? QuizUtil::icon('should') : '',
    ];
    $data[] = [
      'choice' => t('False'),
      'attempt' => $answer === 0 ? QuizUtil::icon('selected') : '',
      'correct' => $answer === 0 ? QuizUtil::icon(!$correct_answer ? 'correct' : 'incorrect') : '',
      'score' => intval($correct_answer === 0 && $answer === 0),
      'answer_feedback' => '',
      'solution' => $correct_answer === 0 ? QuizUtil::icon('should') : '',
    ];
    return $data;
  }

  /**
   * Get answers for a question in a result.
   *
   * This static method assists in building views for the mass export of
   * question answers.
   *
   * @see views_handler_field_prerender_list for the expected return value.
   */
  public static function viewsGetAnswers(array $result_answer_ids = []) : array {
    $items = [];
    foreach (QuizResultAnswer::loadMultiple($result_answer_ids) as $qra) {
      $items[$qra
        ->get('result_id')
        ->getString()][] = [
        'answer' => $qra
          ->getResponse() ? t('True') : t('False'),
      ];
    }
    return $items;
  }

}

Classes

Name	Description
TrueFalseResponse	Extension of QuizQuestionResponse.