function _quiz_add_hidden_questions in Quiz 7

Same name and namespace in other branches

1. 8.4 quiz.admin.inc \_quiz_add_hidden_questions()
2. 6.4 quiz.admin.inc \_quiz_add_hidden_questions()
3. 7.4 quiz.admin.inc \_quiz_add_hidden_questions()

Adds all information about the hidden questions to the questions array.

Hidden questions are used to avoid unnecessary ajax calls.

Parameters

$questions: The questions already added to the question list(array)

$hidden_questions: The questions added to the browser(array)

$form_state: FAPI form_state(array)

$quiz: The quiz node

See also

quiz_questions_form

1 call to _quiz_add_hidden_questions()

quiz_questions_form in ./quiz.admin.inc

Handles "manage questions" tab.

File

./quiz.admin.inc, line 1038

Administrator interface for Quiz module.

Code

function _quiz_add_hidden_questions(&$questions, &$hidden_questions, &$form_state, &$quiz) {
  $cur_questions = array();
  $vids = array();
  foreach ($hidden_questions as $key => $id) {
    $cur_question = new stdClass();
    $matches = array();

    // Find nid and vid
    preg_match('/([0-9]+)-([0-9]+)/', $id, $matches);
    $nid = $matches[1];
    $vid = $matches[2];

    // If a question already exists in the $questions array we won't add a new one...
    $continue = FALSE;
    foreach ($questions as $question) {
      if ($question->vid == $vid) {
        $continue = TRUE;
        break;
      }
    }
    if (!is_numeric($nid) || !is_numeric($vid) || $continue) {
      continue;
    }
    $cur_question->nid = $nid;
    $vids[] = $cur_question->vid = $vid;
    $cur_question->weight = 0;
    $cur_question->question_status = $quiz->randomization == 2 ? QUESTION_RANDOM : QUESTION_ALWAYS;
    $cur_question->staying = isset($form_state['values']['stayers'][$id]) ? $form_state['values']['stayers'][$id] === '1' : FALSE;
    $cur_questions[$cur_question->nid] = $cur_question;
  }
  if (count($vids) > 0) {

    // We fetch the rest of the information for each question and adds node access security
    $res = db_select('node', 'n');
    $res
      ->fields('n', array(
      'nid',
      'type',
    ));
    $res
      ->fields('r', array(
      'title',
    ));
    $res
      ->fields('p', array(
      'max_score',
    ));
    $res
      ->addField('n', 'vid', 'latest_vid');
    $res
      ->join('node_revision', 'r', 'n.nid = r.nid');
    $res
      ->join('quiz_question_properties', 'p', 'r.vid = p.vid');
    $res
      ->condition('r.vid', $vids, 'in');

    // TODO: Don't user db_fetch_object
    foreach ($res
      ->execute() as $res_o) {
      $cur_questions[$res_o->nid]->type = $res_o->type;
      $cur_questions[$res_o->nid]->title = $res_o->title;
      $cur_questions[$res_o->nid]->max_score = $res_o->type == 'scale' ? 0 : $res_o->max_score;
      $cur_questions[$res_o->nid]->latest_vid = $res_o->latest_vid;
      $questions[] = $cur_questions[$res_o->nid];
    }
  }
}