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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Page to edit quizzes
*
* This page generally has two columns:
* The right column lists all available questions in a chosen category and
* allows them to be edited or more to be added. This column is only there if
* the quiz does not already have student attempts
* The left column lists all questions that have been added to the current quiz.
* The lecturer can add questions from the right hand list to the quiz or remove them
*
* The script also processes a number of actions:
* Actions affecting a quiz:
* up and down Changes the order of questions and page breaks
* addquestion Adds a single question to the quiz
* add Adds several selected questions to the quiz
* addrandom Adds a certain number of random questions to the quiz
* repaginate Re-paginates the quiz
* delete Removes a question from the quiz
* savechanges Saves the order and grades for questions in the quiz
*
* @package mod_quiz
* @copyright 1999 onwards Martin Dougiamas and others {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(__DIR__ . '/../../config.php');
require_once($CFG->dirroot . '/mod/quiz/locallib.php');
require_once($CFG->dirroot . '/mod/quiz/addrandomform.php');
require_once($CFG->dirroot . '/question/editlib.php');
// These params are only passed from page request to request while we stay on
// this page otherwise they would go in question_edit_setup.
$scrollpos = optional_param('scrollpos', '', PARAM_INT);
list($thispageurl, $contexts, $cmid, $cm, $quiz, $pagevars) =
question_edit_setup('editq', '/mod/quiz/edit.php', true);
$defaultcategoryobj = question_make_default_categories($contexts->all());
$defaultcategory = $defaultcategoryobj->id . ',' . $defaultcategoryobj->contextid;
$quizhasattempts = quiz_has_attempts($quiz->id);
$PAGE->set_url($thispageurl);
$PAGE->set_secondary_active_tab("mod_quiz_edit");
// Get the course object and related bits.
$course = $DB->get_record('course', array('id' => $quiz->course), '*', MUST_EXIST);
$quizobj = new quiz($quiz, $cm, $course);
$structure = $quizobj->get_structure();
// You need mod/quiz:manage in addition to question capabilities to access this page.
require_capability('mod/quiz:manage', $contexts->lowest());
// Process commands ============================================================.
// Get the list of question ids had their check-boxes ticked.
$selectedslots = array();
$params = (array) data_submitted();
foreach ($params as $key => $value) {
if (preg_match('!^s([0-9]+)$!', $key, $matches)) {
$selectedslots[] = $matches[1];
}
}
$afteractionurl = new moodle_url($thispageurl);
if ($scrollpos) {
$afteractionurl->param('scrollpos', $scrollpos);
}
if (optional_param('repaginate', false, PARAM_BOOL) && confirm_sesskey()) {
// Re-paginate the quiz.
$structure->check_can_be_edited();
$questionsperpage = optional_param('questionsperpage', $quiz->questionsperpage, PARAM_INT);
quiz_repaginate_questions($quiz->id, $questionsperpage );
quiz_delete_previews($quiz);
redirect($afteractionurl);
}
if (($addquestion = optional_param('addquestion', 0, PARAM_INT)) && confirm_sesskey()) {
// Add a single question to the current quiz.
$structure->check_can_be_edited();
quiz_require_question_use($addquestion);
$addonpage = optional_param('addonpage', 0, PARAM_INT);
quiz_add_quiz_question($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 ($addsectionatpage = optional_param('addsectionatpage', false, PARAM_INT)) {
// Add a section to the quiz.
$structure->check_can_be_edited();
$structure->add_section_heading($addsectionatpage);
quiz_delete_previews($quiz);
redirect($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, $recurse);
quiz_delete_previews($quiz);
quiz_update_sumgrades($quiz);
redirect($afteractionurl);
}
if (optional_param('savechanges', false, PARAM_BOOL) && confirm_sesskey()) {
// If rescaling is required save the new maximum.
$maxgrade = unformat_float(optional_param('maxgrade', '', PARAM_RAW_TRIMMED), true);
if (is_float($maxgrade) && $maxgrade >= 0) {
quiz_set_grade($maxgrade, $quiz);
quiz_update_all_final_grades($quiz);
quiz_update_grades($quiz, 0, true);
}
redirect($afteractionurl);
}
// Log this visit.
$event = \mod_quiz\event\edit_page_viewed::create([
'courseid' => $course->id,
'context' => $contexts->lowest(),
'other' => [
'quizid' => $quiz->id
]
]);
$event->trigger();
// Get the question bank view.
$questionbank = new mod_quiz\question\bank\custom_view($contexts, $thispageurl, $course, $cm, $quiz);
$questionbank->set_quiz_has_attempts($quizhasattempts);
// End of process commands =====================================================.
$PAGE->set_pagelayout('incourse');
$PAGE->add_body_class('limitedwidth');
$PAGE->set_pagetype('mod-quiz-edit');
$output = $PAGE->get_renderer('mod_quiz', 'edit');
$PAGE->set_title(get_string('editingquizx', 'quiz', format_string($quiz->name)));
$PAGE->set_heading($course->fullname);
$PAGE->activityheader->disable();
$node = $PAGE->settingsnav->find('mod_quiz_edit', navigation_node::TYPE_SETTING);
if ($node) {
$node->make_active();
}
echo $OUTPUT->header();
// Initialise the JavaScript.
$quizeditconfig = new stdClass();
$quizeditconfig->url = $thispageurl->out(true, array('qbanktool' => '0'));
$quizeditconfig->dialoglisteners = array();
$numberoflisteners = $DB->get_field_sql("
SELECT COALESCE(MAX(page), 1)
FROM {quiz_slots}
WHERE quizid = ?", array($quiz->id));
for ($pageiter = 1; $pageiter <= $numberoflisteners; $pageiter++) {
$quizeditconfig->dialoglisteners[] = 'addrandomdialoglaunch_' . $pageiter;
}
$PAGE->requires->data_for_js('quiz_edit_config', $quizeditconfig);
$PAGE->requires->js('/question/qengine.js');
// Questions wrapper start.
echo html_writer::start_tag('div', array('class' => 'mod-quiz-edit-content'));
echo $output->edit_page($quizobj, $structure, $contexts, $thispageurl, $pagevars);
// Questions wrapper end.
echo html_writer::end_tag('div');
echo $OUTPUT->footer();