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76cf77e4d3
We also check permissions when removing questions from the quiz, so that we do not let users make mistakes they cannot immediately undo.
589 lines
22 KiB
PHP
589 lines
22 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Page to edit quizzes
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*
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* This page generally has two columns:
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* The right column lists all available questions in a chosen category and
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* allows them to be edited or more to be added. This column is only there if
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* the quiz does not already have student attempts
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* The left column lists all questions that have been added to the current quiz.
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* The lecturer can add questions from the right hand list to the quiz or remove them
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*
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* The script also processes a number of actions:
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* Actions affecting a quiz:
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* up and down Changes the order of questions and page breaks
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* addquestion Adds a single question to the quiz
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* add Adds several selected questions to the quiz
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* addrandom Adds a certain number of random questions to the quiz
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* repaginate Re-paginates the quiz
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* delete Removes a question from the quiz
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* savechanges Saves the order and grades for questions in the quiz
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*
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* @package mod
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* @subpackage quiz
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* @copyright 1999 onwards Martin Dougiamas and others {@link http://moodle.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once('../../config.php');
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require_once($CFG->dirroot . '/mod/quiz/editlib.php');
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require_once($CFG->dirroot . '/mod/quiz/addrandomform.php');
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require_once($CFG->dirroot . '/question/category_class.php');
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/**
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* Callback function called from question_list() function
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* (which is called from showbank())
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* Displays button in form with checkboxes for each question.
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*/
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function module_specific_buttons($cmid, $cmoptions) {
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global $OUTPUT;
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$params = array(
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'type' => 'submit',
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'name' => 'add',
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'value' => $OUTPUT->larrow() . ' ' . get_string('addtoquiz', 'quiz'),
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);
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if ($cmoptions->hasattempts) {
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$params['disabled'] = 'disabled';
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}
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return html_writer::empty_tag('input', $params);
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}
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/**
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* Callback function called from question_list() function
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* (which is called from showbank())
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*/
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function module_specific_controls($totalnumber, $recurse, $category, $cmid, $cmoptions) {
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global $OUTPUT;
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$out = '';
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$catcontext = get_context_instance_by_id($category->contextid);
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if (has_capability('moodle/question:useall', $catcontext)) {
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if ($cmoptions->hasattempts) {
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$disabled = ' disabled="disabled"';
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} else {
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$disabled = '';
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}
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$randomusablequestions =
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question_bank::get_qtype('random')->get_available_questions_from_category(
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$category->id, $recurse);
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$maxrand = count($randomusablequestions);
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if ($maxrand > 0) {
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for ($i = 1; $i <= min(10, $maxrand); $i++) {
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$randomcount[$i] = $i;
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}
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for ($i = 20; $i <= min(100, $maxrand); $i += 10) {
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$randomcount[$i] = $i;
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}
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} else {
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$randomcount[0] = 0;
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$disabled = ' disabled="disabled"';
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}
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$out = '<strong><label for="menurandomcount">'.get_string('addrandomfromcategory', 'quiz').
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'</label></strong><br />';
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$attributes = array();
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$attributes['disabled'] = $disabled ? 'disabled' : null;
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$select = html_writer::select($randomcount, 'randomcount', '1', null, $attributes);
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$out .= get_string('addrandom', 'quiz', $select);
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$out .= '<input type="hidden" name="recurse" value="'.$recurse.'" />';
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$out .= '<input type="hidden" name="categoryid" value="' . $category->id . '" />';
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$out .= ' <input type="submit" name="addrandom" value="'.
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get_string('addtoquiz', 'quiz').'"' . $disabled . ' />';
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$out .= $OUTPUT->help_icon('addarandomquestion', 'quiz');
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}
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return $out;
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}
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//these params are only passed from page request to request while we stay on
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//this page otherwise they would go in question_edit_setup
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$quiz_reordertool = optional_param('reordertool', -1, PARAM_BOOL);
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$quiz_qbanktool = optional_param('qbanktool', -1, PARAM_BOOL);
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$scrollpos = optional_param('scrollpos', '', PARAM_INT);
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list($thispageurl, $contexts, $cmid, $cm, $quiz, $pagevars) =
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question_edit_setup('editq', '/mod/quiz/edit.php', true);
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$quiz->questions = quiz_clean_layout($quiz->questions);
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$defaultcategoryobj = question_make_default_categories($contexts->all());
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$defaultcategory = $defaultcategoryobj->id . ',' . $defaultcategoryobj->contextid;
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if ($quiz_qbanktool > -1) {
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$thispageurl->param('qbanktool', $quiz_qbanktool);
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set_user_preference('quiz_qbanktool_open', $quiz_qbanktool);
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} else {
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$quiz_qbanktool = get_user_preferences('quiz_qbanktool_open', 0);
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}
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if ($quiz_reordertool > -1) {
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$thispageurl->param('reordertool', $quiz_reordertool);
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set_user_preference('quiz_reordertab', $quiz_reordertool);
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} else {
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$quiz_reordertool = get_user_preferences('quiz_reordertab', 0);
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}
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$canaddrandom = $contexts->have_cap('moodle/question:useall');
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$canaddquestion = (bool) $contexts->having_add_and_use();
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$quizhasattempts = quiz_has_attempts($quiz->id);
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$PAGE->set_url($thispageurl);
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$pagetitle = get_string('editingquiz', 'quiz');
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if ($quiz_reordertool) {
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$pagetitle = get_string('orderingquiz', 'quiz');
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}
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// Get the course object and related bits.
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$course = $DB->get_record('course', array('id' => $quiz->course));
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if (!$course) {
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print_error('invalidcourseid', 'error');
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}
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$questionbank = new quiz_question_bank_view($contexts, $thispageurl, $course, $cm, $quiz);
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$questionbank->set_quiz_has_attempts($quizhasattempts);
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// Log this visit.
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add_to_log($cm->course, 'quiz', 'editquestions',
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"view.php?id=$cm->id", "$quiz->id", $cm->id);
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// You need mod/quiz:manage in addition to question capabilities to access this page.
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require_capability('mod/quiz:manage', $contexts->lowest());
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if (empty($quiz->grades)) {
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$quiz->grades = quiz_get_all_question_grades($quiz);
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}
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// Process commands ============================================================
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if ($quiz->shufflequestions) {
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// Strip page breaks before processing actions, so that re-ordering works
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// as expected when shuffle questions is on.
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$quiz->questions = quiz_repaginate($quiz->questions, 0);
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}
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// Get the list of question ids had their check-boxes ticked.
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$selectedquestionids = array();
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$params = (array) data_submitted();
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foreach ($params as $key => $value) {
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if (preg_match('!^s([0-9]+)$!', $key, $matches)) {
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$selectedquestionids[] = $matches[1];
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}
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}
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$afteractionurl = new moodle_url($thispageurl);
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if ($scrollpos) {
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$afteractionurl->param('scrollpos', $scrollpos);
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}
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if (($up = optional_param('up', false, PARAM_INT)) && confirm_sesskey()) {
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$quiz->questions = quiz_move_question_up($quiz->questions, $up);
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$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
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quiz_delete_previews($quiz);
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redirect($afteractionurl);
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}
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if (($down = optional_param('down', false, PARAM_INT)) && confirm_sesskey()) {
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$quiz->questions = quiz_move_question_down($quiz->questions, $down);
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$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
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quiz_delete_previews($quiz);
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redirect($afteractionurl);
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}
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if (optional_param('repaginate', false, PARAM_BOOL) && confirm_sesskey()) {
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// Re-paginate the quiz
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$questionsperpage = optional_param('questionsperpage', $quiz->questionsperpage, PARAM_INT);
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$quiz->questions = quiz_repaginate($quiz->questions, $questionsperpage );
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$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
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quiz_delete_previews($quiz);
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redirect($afteractionurl);
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}
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if (($addquestion = optional_param('addquestion', 0, PARAM_INT)) && confirm_sesskey()) {
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// Add a single question to the current quiz
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quiz_require_question_use($addquestion);
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$addonpage = optional_param('addonpage', 0, PARAM_INT);
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quiz_add_quiz_question($addquestion, $quiz, $addonpage);
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quiz_delete_previews($quiz);
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quiz_update_sumgrades($quiz);
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$thispageurl->param('lastchanged', $addquestion);
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redirect($afteractionurl);
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}
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if (optional_param('add', false, PARAM_BOOL) && confirm_sesskey()) {
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// Add selected questions to the current quiz
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$rawdata = (array) data_submitted();
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foreach ($rawdata as $key => $value) { // Parse input for question ids
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if (preg_match('!^q([0-9]+)$!', $key, $matches)) {
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$key = $matches[1];
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quiz_require_question_use($key);
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quiz_add_quiz_question($key, $quiz);
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}
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}
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quiz_delete_previews($quiz);
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quiz_update_sumgrades($quiz);
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redirect($afteractionurl);
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}
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if ((optional_param('addrandom', false, PARAM_BOOL)) && confirm_sesskey()) {
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// Add random questions to the quiz
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$recurse = optional_param('recurse', 0, PARAM_BOOL);
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$addonpage = optional_param('addonpage', 0, PARAM_INT);
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$categoryid = required_param('categoryid', PARAM_INT);
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$randomcount = required_param('randomcount', PARAM_INT);
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quiz_add_random_questions($quiz, $addonpage, $categoryid, $randomcount, $recurse);
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quiz_delete_previews($quiz);
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quiz_update_sumgrades($quiz);
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redirect($afteractionurl);
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}
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if (optional_param('addnewpagesafterselected', null, PARAM_CLEAN) &&
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!empty($selectedquestionids) && confirm_sesskey()) {
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foreach ($selectedquestionids as $questionid) {
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$quiz->questions = quiz_add_page_break_after($quiz->questions, $questionid);
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}
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$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
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quiz_delete_previews($quiz);
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redirect($afteractionurl);
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}
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$addpage = optional_param('addpage', false, PARAM_INT);
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if ($addpage !== false && confirm_sesskey()) {
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$quiz->questions = quiz_add_page_break_at($quiz->questions, $addpage);
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$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
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quiz_delete_previews($quiz);
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redirect($afteractionurl);
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}
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$deleteemptypage = optional_param('deleteemptypage', false, PARAM_INT);
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if (($deleteemptypage !== false) && confirm_sesskey()) {
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$quiz->questions = quiz_delete_empty_page($quiz->questions, $deleteemptypage);
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$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
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quiz_delete_previews($quiz);
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redirect($afteractionurl);
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}
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$remove = optional_param('remove', false, PARAM_INT);
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if ($remove && confirm_sesskey()) {
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// Remove a question from the quiz.
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// We require the user to have the 'use' capability on the question,
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// so that then can add it back if they remove the wrong one by mistake.
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quiz_require_question_use($remove);
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quiz_remove_question($quiz, $remove);
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quiz_delete_previews($quiz);
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quiz_update_sumgrades($quiz);
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redirect($afteractionurl);
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}
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if (optional_param('quizdeleteselected', false, PARAM_BOOL) &&
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!empty($selectedquestionids) && confirm_sesskey()) {
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foreach ($selectedquestionids as $questionid) {
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if (quiz_has_question_use($questionid)) {
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quiz_remove_question($quiz, $questionid);
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}
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}
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quiz_delete_previews($quiz);
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quiz_update_sumgrades($quiz);
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redirect($afteractionurl);
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}
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if (optional_param('savechanges', false, PARAM_BOOL) && confirm_sesskey()) {
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$deletepreviews = false;
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$recomputesummarks = false;
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$oldquestions = explode(',', $quiz->questions); // the questions in the old order
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$questions = array(); // for questions in the new order
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$rawdata = (array) data_submitted();
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$moveonpagequestions = array();
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$moveselectedonpage = optional_param('moveselectedonpagetop', 0, PARAM_INT);
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if (!$moveselectedonpage) {
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$moveselectedonpage = optional_param('moveselectedonpagebottom', 0, PARAM_INT);
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}
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foreach ($rawdata as $key => $value) {
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if (preg_match('!^g([0-9]+)$!', $key, $matches)) {
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// Parse input for question -> grades
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$questionid = $matches[1];
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$quiz->grades[$questionid] = clean_param($value, PARAM_FLOAT);
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quiz_update_question_instance($quiz->grades[$questionid], $questionid, $quiz);
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$deletepreviews = true;
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$recomputesummarks = true;
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} else if (preg_match('!^o(pg)?([0-9]+)$!', $key, $matches)) {
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// Parse input for ordering info
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$questionid = $matches[2];
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// Make sure two questions don't overwrite each other. If we get a second
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// question with the same position, shift the second one along to the next gap.
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$value = clean_param($value, PARAM_INTEGER);
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while (array_key_exists($value, $questions)) {
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$value++;
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}
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if ($matches[1]) {
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// This is a page-break entry.
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$questions[$value] = 0;
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} else {
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$questions[$value] = $questionid;
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}
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$deletepreviews = true;
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}
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}
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// If ordering info was given, reorder the questions
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if ($questions) {
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ksort($questions);
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$questions[] = 0;
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$quiz->questions = implode(',', $questions);
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$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
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$deletepreviews = true;
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}
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//get a list of questions to move, later to be added in the appropriate
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//place in the string
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if ($moveselectedonpage) {
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$questions = explode(',', $quiz->questions);
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$newquestions = array();
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//remove the questions from their original positions first
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foreach ($questions as $questionid) {
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if (!in_array($questionid, $selectedquestionids)) {
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$newquestions[] = $questionid;
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}
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}
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$questions = $newquestions;
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//move to the end of the selected page
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$pagebreakpositions = array_keys($questions, 0);
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$numpages = count($pagebreakpositions);
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// Ensure the target page number is in range.
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for ($i = $moveselectedonpage; $i > $numpages; $i--) {
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$questions[] = 0;
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$pagebreakpositions[] = count($questions) - 1;
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}
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$moveselectedpos = $pagebreakpositions[$moveselectedonpage - 1];
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// Do the move.
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array_splice($questions, $moveselectedpos, 0, $selectedquestionids);
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$quiz->questions = implode(',', $questions);
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// Update the database.
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$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id));
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$deletepreviews = true;
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}
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// If rescaling is required save the new maximum
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$maxgrade = optional_param('maxgrade', -1, PARAM_FLOAT);
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if ($maxgrade >= 0) {
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quiz_set_grade($maxgrade, $quiz);
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}
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if ($deletepreviews) {
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quiz_delete_previews($quiz);
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}
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if ($recomputesummarks) {
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quiz_update_sumgrades($quiz);
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quiz_update_all_attempt_sumgrades($quiz);
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quiz_update_all_final_grades($quiz);
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quiz_update_grades($quiz, 0, true);
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}
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redirect($afteractionurl);
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}
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$questionbank->process_actions($thispageurl, $cm);
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// End of process commands =====================================================
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$PAGE->requires->yui2_lib('container');
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$PAGE->requires->yui2_lib('dragdrop');
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$PAGE->requires->skip_link_to('questionbank',
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get_string('skipto', 'access', get_string('questionbank', 'question')));
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$PAGE->requires->skip_link_to('quizcontentsblock',
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get_string('skipto', 'access', get_string('questionsinthisquiz', 'quiz')));
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$PAGE->set_title($pagetitle);
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$PAGE->set_heading($course->fullname);
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$node = $PAGE->settingsnav->find('mod_quiz_edit', navigation_node::TYPE_SETTING);
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if ($node) {
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$node->make_active();
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}
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echo $OUTPUT->header();
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// Initialise the JavaScript.
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$quizeditconfig = new stdClass();
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$quizeditconfig->url = $thispageurl->out(true, array('qbanktool' => '0'));
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$quizeditconfig->dialoglisteners = array();
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$numberoflisteners = max(quiz_number_of_pages($quiz->questions), 1);
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for ($pageiter = 1; $pageiter <= $numberoflisteners; $pageiter++) {
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$quizeditconfig->dialoglisteners[] = 'addrandomdialoglaunch_' . $pageiter;
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}
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$PAGE->requires->data_for_js('quiz_edit_config', $quizeditconfig);
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$PAGE->requires->js('/question/qengine.js');
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$PAGE->requires->js('/mod/quiz/edit.js');
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$PAGE->requires->js_init_call('quiz_edit_init');
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// Print the tabs to switch mode.
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if ($quiz_reordertool) {
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$currenttab = 'reorder';
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} else {
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$currenttab = 'edit';
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}
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$tabs = array(array(
|
|
new tabobject('edit', new moodle_url($thispageurl,
|
|
array('reordertool' => 0)), get_string('editingquiz', 'quiz')),
|
|
new tabobject('reorder', new moodle_url($thispageurl,
|
|
array('reordertool' => 1)), get_string('orderingquiz', 'quiz')),
|
|
));
|
|
print_tabs($tabs, $currenttab);
|
|
|
|
if ($quiz_qbanktool) {
|
|
$bankclass = '';
|
|
$quizcontentsclass = '';
|
|
} else {
|
|
$bankclass = 'collapsed ';
|
|
$quizcontentsclass = 'quizwhenbankcollapsed';
|
|
}
|
|
|
|
echo '<div class="questionbankwindow ' . $bankclass . 'block">';
|
|
echo '<div class="header"><div class="title"><h2>';
|
|
echo get_string('questionbankcontents', 'quiz') .
|
|
' <a href="' . $thispageurl->out(true, array('qbanktool' => '1')) .
|
|
'" id="showbankcmd">[' . get_string('show').
|
|
']</a>
|
|
<a href="' . $thispageurl->out(true, array('qbanktool' => '0')) .
|
|
'" id="hidebankcmd">[' . get_string('hide').
|
|
']</a>';
|
|
echo '</h2></div></div><div class="content">';
|
|
|
|
echo '<span id="questionbank"></span>';
|
|
echo '<div class="container">';
|
|
echo '<div id="module" class="module">';
|
|
echo '<div class="bd">';
|
|
$questionbank->display('editq',
|
|
$pagevars['qpage'],
|
|
$pagevars['qperpage'],
|
|
$pagevars['cat'], $pagevars['recurse'], $pagevars['showhidden'],
|
|
$pagevars['qbshowtext']);
|
|
echo '</div>';
|
|
echo '</div>';
|
|
echo '</div>';
|
|
|
|
echo '</div></div>';
|
|
|
|
echo '<div class="quizcontents ' . $quizcontentsclass . '" id="quizcontentsblock">';
|
|
if ($quiz->shufflequestions) {
|
|
$repaginatingdisabledhtml = 'disabled="disabled"';
|
|
$repaginatingdisabled = true;
|
|
$quiz->questions = quiz_repaginate($quiz->questions, $quiz->questionsperpage);
|
|
} else {
|
|
$repaginatingdisabledhtml = '';
|
|
$repaginatingdisabled = false;
|
|
}
|
|
if ($quiz_reordertool) {
|
|
echo '<div class="repaginatecommand"><button id="repaginatecommand" ' .
|
|
$repaginatingdisabledhtml.'>'.
|
|
get_string('repaginatecommand', 'quiz').'...</button>';
|
|
echo '</div>';
|
|
}
|
|
|
|
if ($quiz_reordertool) {
|
|
echo $OUTPUT->heading_with_help(get_string('orderingquiz', 'quiz') . ': ' . $quiz->name,
|
|
'orderandpaging', 'quiz');
|
|
} else {
|
|
echo $OUTPUT->heading(get_string('editingquiz', 'quiz') . ': ' . $quiz->name, 2);
|
|
echo $OUTPUT->help_icon('editingquiz', 'quiz', get_string('basicideasofquiz', 'quiz'));
|
|
}
|
|
quiz_print_status_bar($quiz);
|
|
|
|
$tabindex = 0;
|
|
quiz_print_grading_form($quiz, $thispageurl, $tabindex);
|
|
|
|
$notifystrings = array();
|
|
if ($quizhasattempts) {
|
|
$reviewlink = quiz_attempt_summary_link_to_reports($quiz, $cm, $contexts->lowest());
|
|
$notifystrings[] = get_string('cannoteditafterattempts', 'quiz', $reviewlink);
|
|
}
|
|
if ($quiz->shufflequestions) {
|
|
$updateurl = new moodle_url("$CFG->wwwroot/course/mod.php",
|
|
array('return' => 'true', 'update' => $quiz->cmid, 'sesskey' => sesskey()));
|
|
$updatelink = '<a href="'.$updateurl->out().'">' . get_string('updatethis', '',
|
|
get_string('modulename', 'quiz')) . '</a>';
|
|
$notifystrings[] = get_string('shufflequestionsselected', 'quiz', $updatelink);
|
|
}
|
|
if (!empty($notifystrings)) {
|
|
echo $OUTPUT->box('<p>' . implode('</p><p>', $notifystrings) . '</p>', 'statusdisplay');
|
|
}
|
|
|
|
if ($quiz_reordertool) {
|
|
$perpage = array();
|
|
$perpage[0] = get_string('allinone', 'quiz');
|
|
for ($i = 1; $i <= 50; ++$i) {
|
|
$perpage[$i] = $i;
|
|
}
|
|
$gostring = get_string('go');
|
|
echo '<div id="repaginatedialog"><div class="hd">';
|
|
echo get_string('repaginatecommand', 'quiz');
|
|
echo '</div><div class="bd">';
|
|
echo '<form action="edit.php" method="post">';
|
|
echo '<fieldset class="invisiblefieldset">';
|
|
echo html_writer::input_hidden_params($thispageurl);
|
|
echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
|
|
//YUI does not submit the value of the submit button so
|
|
//we need to add the value:
|
|
echo '<input type="hidden" name="repaginate" value="'.$gostring.'" />';
|
|
$attributes = array();
|
|
$attributes['disabled'] = $repaginatingdisabledhtml ? 'disabled' : null;
|
|
$select = html_writer::select(
|
|
$perpage, 'questionsperpage', $quiz->questionsperpage, null, $attributes);
|
|
print_string('repaginate', 'quiz', $select);
|
|
echo '<div class="quizquestionlistcontrols">';
|
|
echo ' <input type="submit" name="repaginate" value="'. $gostring . '" ' .
|
|
$repaginatingdisabledhtml.' />';
|
|
echo '</div></fieldset></form></div></div>';
|
|
}
|
|
|
|
if ($quiz_reordertool) {
|
|
echo '<div class="reorder">';
|
|
} else {
|
|
echo '<div class="editq">';
|
|
}
|
|
|
|
quiz_print_question_list($quiz, $thispageurl, true, $quiz_reordertool, $quiz_qbanktool,
|
|
$quizhasattempts, $defaultcategoryobj, $canaddquestion, $canaddrandom);
|
|
echo '</div>';
|
|
|
|
// Close <div class="quizcontents">:
|
|
echo '</div>';
|
|
|
|
if (!$quiz_reordertool && $canaddrandom) {
|
|
$randomform = new quiz_add_random_form(new moodle_url('/mod/quiz/addrandom.php'), $contexts);
|
|
$randomform->set_data(array(
|
|
'category' => $pagevars['cat'],
|
|
'returnurl' => $thispageurl->out_as_local_url(false),
|
|
'cmid' => $cm->id,
|
|
));
|
|
?>
|
|
<div id="randomquestiondialog">
|
|
<div class="hd"><?php print_string('addrandomquestiontoquiz', 'quiz', $quiz->name); ?>
|
|
<span id="pagenumber"><!-- JavaScript will insert the page number here. -->
|
|
</span>
|
|
</div>
|
|
<div class="bd"><?php
|
|
$randomform->display();
|
|
?></div>
|
|
</div>
|
|
<?php
|
|
}
|
|
echo $OUTPUT->footer();
|