public function MultichoiceQuestion::delete in Quiz 8.4

Implementation of delete

Overrides QuizQuestion::delete

See also

QuizQuestion#delete()

File

question_types/multichoice/lib/Drupal/multichoice/MultichoiceQuestion.php, line 313

The main classes for the multichoice question type.

Class

MultichoiceQuestion

Extension of QuizQuestion.

Namespace

Drupal\multichoice

Code

public function delete($only_this_version = FALSE) {
  $delete_properties = db_delete('quiz_multichoice_properties')
    ->condition('nid', $this->node
    ->id());
  $delete_answers = db_delete('quiz_multichoice_answers')
    ->condition('question_nid', $this->node
    ->id());
  $delete_results = db_delete('quiz_multichoice_user_answers')
    ->condition('question_nid', $this->node
    ->id());
  if ($only_this_version) {
    $delete_properties
      ->condition('vid', $this->node
      ->getRevisionId());
    $delete_answers
      ->condition('question_vid', $this->node
      ->getRevisionId());
    $delete_results
      ->condition('question_vid', $this->node
      ->getRevisionId());
  }

  // Delete from table quiz_multichoice_user_answer_multi
  if ($only_this_version) {
    $user_answer_id = db_query('SELECT id FROM {quiz_multichoice_user_answers} WHERE question_nid = :nid AND question_vid = :vid', array(
      ':nid' => $this->node
        ->id(),
      ':vid' => $this->node
        ->getRevisionId(),
    ))
      ->fetchCol();
  }
  else {
    $user_answer_id = db_query('SELECT id FROM {quiz_multichoice_user_answers} WHERE question_nid = :nid', array(
      ':nid' => $this->node
        ->id(),
    ))
      ->fetchCol();
  }
  db_delete('quiz_multichoice_user_answer_multi')
    ->condition('user_answer_id', $user_answer_id, 'IN')
    ->execute();
  $delete_properties
    ->execute();
  $delete_answers
    ->execute();
  $delete_results
    ->execute();
  parent::delete($only_this_version);
}