public function MatchingQuestion::delete in Quiz 7.6

Same name and namespace in other branches

1. 6.6 question_types/matching/matching.classes.inc \MatchingQuestion::delete()
2. 6.3 question_types/matching/matching.classes.inc \MatchingQuestion::delete()
3. 6.4 question_types/matching/matching.classes.inc \MatchingQuestion::delete()
4. 6.5 question_types/matching/matching.classes.inc \MatchingQuestion::delete()
5. 7 question_types/matching/matching.classes.inc \MatchingQuestion::delete()
6. 7.4 question_types/matching/matching.classes.inc \MatchingQuestion::delete()
7. 7.5 question_types/matching/matching.classes.inc \MatchingQuestion::delete()

Implementation of delete

Overrides QuizQuestion::delete

See also

QuizQuestion#delete($only_this_version)

File

question_types/matching/matching.classes.inc, line 104

matching.classes

Class

MatchingQuestion

Extension of QuizQuestion.

Code

public function delete($only_this_version = FALSE) {
  parent::delete($only_this_version);
  $delete_properties = db_delete('quiz_matching_properties')
    ->condition('nid', $this->node->nid);
  if ($only_this_version) {
    $delete_properties
      ->condition('vid', $this->node->vid);
    $match_id = db_query('SELECT match_id FROM {quiz_matching_node} WHERE nid = :nid AND vid = :vid', array(
      ':nid' => $this->node->nid,
      ':vid' => $this->node->vid,
    ))
      ->fetchCol();
    db_delete('quiz_matching_user_answers')
      ->condition('match_id', is_array($match_id) ? $match_id : array(
      0,
    ), 'IN')
      ->execute();
    db_delete('quiz_matching_node')
      ->condition('nid', $this->node->nid)
      ->condition('vid', $this->node->vid)
      ->execute();
  }
  else {
    $match_id = db_query('SELECT match_id FROM {quiz_matching_node} WHERE nid = :nid', array(
      ':nid' => $this->node->nid,
    ))
      ->fetchCol();
    if (!empty($match_id)) {
      db_delete('quiz_matching_user_answers')
        ->condition('match_id', $match_id, 'IN')
        ->execute();
    }
    db_delete('quiz_matching_node')
      ->condition('nid', $this->node->nid)
      ->execute();
  }
  $delete_properties
    ->execute();
}