public function MatchingResponse::score in Quiz 8.4

Implementation of score

Overrides QuizQuestionResponse::score

See also

QuizQuestionResponse#score()

File

question_types/matching/lib/Drupal/matching/MatchingResponse.php, line 86

Class

MatchingResponse

Extension of QuizQuestionResponse

Namespace

Drupal\matching

Code

public function score() {
  $wrong_answer = 0;
  $correct_answer = 0;
  $user_answers = isset($this->answer['answer']) ? $this->answer['answer'] : $this->answer;
  foreach ((array) $user_answers as $key => $value) {
    if ($key == $value) {
      $correct_answer++;
    }
    elseif ($value == 0 || $value == 'def') {
    }
    else {
      $wrong_answer++;
    }
  }
  $score = $correct_answer - $wrong_answer;
  return $score < 0 ? 0 : $score;
}