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public function MatchingResponse::isValid in Quiz 8.4

Implementation of isValid

Overrides QuizQuestionResponse::isValid

See also

QuizQuestionResponse#isValid()

File

question_types/matching/lib/Drupal/matching/MatchingResponse.php, line 38

Class

MatchingResponse: Extension of QuizQuestionResponse

Namespace

Drupal\matching

Code

public function isValid() {
  foreach ($this->answer as $value) {
    if ($value != 'def') {
      return TRUE;
    }
  }
  return t('You need to match at least one of the items.');
}