public function MatchingResponse::score in Quiz 6.6

Same name and namespace in other branches

1. 6.3 question_types/matching/matching.classes.inc \MatchingResponse::score()
2. 6.4 question_types/matching/matching.classes.inc \MatchingResponse::score()
3. 6.5 question_types/matching/matching.classes.inc \MatchingResponse::score()
4. 7.6 question_types/matching/matching.classes.inc \MatchingResponse::score()
5. 7 question_types/matching/matching.classes.inc \MatchingResponse::score()
6. 7.4 question_types/matching/matching.classes.inc \MatchingResponse::score()
7. 7.5 question_types/matching/matching.classes.inc \MatchingResponse::score()

File

question_types/matching/matching.classes.inc, line 245

matching.classes

Class

MatchingResponse

Class that describes a "Directions question response". For the most part, no real scoring takes place for a direction node. However, there are a few behind-the-scenes tricks that are done here to make the quiz-taking process a little easier.

Code

public function score() {
  $wrong_answer = 0;
  $correct_answer = 0;
  $user_answers = isset($this->answer) ? $this->answer : $this
    ->getUserAnswers();
  $user_answers = isset($user_answers) ? $user_answers : array();

  // to prevent warning : Invalid argument supplied for foreach()
  foreach ((array) $user_answers as $key => $value) {
    if ($key != $value) {
      $wrong_answer++;
    }
    else {
      $correct_answer++;
    }
  }
  $score = $correct_answer - $wrong_answer;
  return $score < 0 ? 0 : $score;
}