/**
* This adds a particular question to the supplied quiz. Based on /mod/quiz/edit.php
*
* @param int $questionid
* @param stdClass $quiz
* @return void
*/
public function add_question_to_quiz($questionid, $quiz)
{
quiz_require_question_use($questionid);
quiz_add_quiz_question($questionid, $quiz, 0);
quiz_delete_previews($quiz);
quiz_update_sumgrades($quiz);
}
quiz_delete_previews($quiz);
redirect($afteractionurl);
}
$deleteemptypage = optional_param('deleteemptypage', false, PARAM_INT);
if ($deleteemptypage !== false && confirm_sesskey()) {
$quiz->questions = quiz_delete_empty_page($quiz->questions, $deleteemptypage);
$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
quiz_delete_previews($quiz);
redirect($afteractionurl);
}
$remove = optional_param('remove', false, PARAM_INT);
if ($remove && confirm_sesskey()) {
// Remove a question from the quiz.
// We require the user to have the 'use' capability on the question,
// so that then can add it back if they remove the wrong one by mistake.
quiz_require_question_use($remove);
quiz_remove_question($quiz, $remove);
quiz_delete_previews($quiz);
quiz_update_sumgrades($quiz);
redirect($afteractionurl);
}
if (optional_param('quizdeleteselected', false, PARAM_BOOL) && !empty($selectedquestionids) && confirm_sesskey()) {
foreach ($selectedquestionids as $questionid) {
if (quiz_has_question_use($questionid)) {
quiz_remove_question($quiz, $questionid);
}
}
quiz_delete_previews($quiz);
quiz_update_sumgrades($quiz);
redirect($afteractionurl);
}
quiz_add_quiz_question($addquestion, $quiz, $addonpage);
quiz_delete_previews($quiz);
quiz_update_sumgrades($quiz);
$thispageurl->param('lastchanged', $addquestion);
redirect($afteractionurl);
}
if (optional_param('add', false, PARAM_BOOL) && confirm_sesskey()) {
$structure->check_can_be_edited();
$addonpage = optional_param('addonpage', 0, PARAM_INT);
// Add selected questions to the current quiz.
$rawdata = (array) data_submitted();
foreach ($rawdata as $key => $value) {
// Parse input for question ids.
if (preg_match('!^q([0-9]+)$!', $key, $matches)) {
$key = $matches[1];
quiz_require_question_use($key);
quiz_add_quiz_question($key, $quiz, $addonpage);
}
}
quiz_delete_previews($quiz);
quiz_update_sumgrades($quiz);
redirect($afteractionurl);
}
if (optional_param('addrandom', false, PARAM_BOOL) && confirm_sesskey()) {
// Add random questions to the quiz.
$structure->check_can_be_edited();
$recurse = optional_param('recurse', 0, PARAM_BOOL);
$addonpage = optional_param('addonpage', 0, PARAM_INT);
$categoryid = required_param('categoryid', PARAM_INT);
$randomcount = required_param('randomcount', PARAM_INT);
quiz_add_random_questions($quiz, $addonpage, $categoryid, $randomcount, $recurse);