mirror of
https://github.com/moodle/moodle.git
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465 lines
23 KiB
PHP
465 lines
23 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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* Defines the quiz module ettings form.
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*
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* @package mod
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* @subpackage quiz
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* @copyright 2006 Jamie Pratt
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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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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->dirroot . '/course/moodleform_mod.php');
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require_once($CFG->dirroot . '/mod/quiz/locallib.php');
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/**
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* Settings form for the quiz module.
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*
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* @copyright 2006 Jamie Pratt
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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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class mod_quiz_mod_form extends moodleform_mod {
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protected $_feedbacks;
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protected static $reviewfields = array(); // Initialised in the constructor.
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public function __construct($current, $section, $cm, $course) {
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self::$reviewfields = array(
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'attempt' => get_string('theattempt', 'quiz'),
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'correctness' => get_string('whethercorrect', 'question'),
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'marks' => get_string('marks', 'question'),
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'specificfeedback' => get_string('specificfeedback', 'question'),
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'generalfeedback' => get_string('generalfeedback', 'question'),
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'rightanswer' => get_string('rightanswer', 'question'),
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'overallfeedback' => get_string('overallfeedback', 'quiz'),
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);
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parent::__construct($current, $section, $cm, $course);
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}
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protected function definition() {
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global $COURSE, $CFG, $DB, $PAGE;
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$quizconfig = get_config('quiz');
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$mform = $this->_form;
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//-------------------------------------------------------------------------------
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$mform->addElement('header', 'general', get_string('general', 'form'));
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/// Name.
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$mform->addElement('text', 'name', get_string('name'), array('size'=>'64'));
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if (!empty($CFG->formatstringstriptags)) {
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$mform->setType('name', PARAM_TEXT);
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} else {
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$mform->setType('name', PARAM_CLEANHTML);
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}
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$mform->addRule('name', null, 'required', null, 'client');
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/// Introduction.
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$this->add_intro_editor(false, get_string('introduction', 'quiz'));
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/// Open and close dates.
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$mform->addElement('date_time_selector', 'timeopen', get_string('quizopen', 'quiz'),
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array('optional' => true, 'step' => 1));
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$mform->addHelpButton('timeopen', 'quizopenclose', 'quiz');
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$mform->addElement('date_time_selector', 'timeclose', get_string('quizclose', 'quiz'),
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array('optional' => true, 'step' => 1));
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/// Time limit.
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$mform->addElement('duration', 'timelimit', get_string('timelimit', 'quiz'), array('optional' => true));
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$mform->addHelpButton('timelimit', 'timelimit', 'quiz');
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$mform->setAdvanced('timelimit', $quizconfig->timelimit_adv);
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$mform->setDefault('timelimit', $quizconfig->timelimit);
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/// Number of attempts.
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$attemptoptions = array('0' => get_string('unlimited'));
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for ($i = 1; $i <= QUIZ_MAX_ATTEMPT_OPTION; $i++) {
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$attemptoptions[$i] = $i;
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}
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$mform->addElement('select', 'attempts', get_string('attemptsallowed', 'quiz'), $attemptoptions);
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$mform->setAdvanced('attempts', $quizconfig->attempts_adv);
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$mform->setDefault('attempts', $quizconfig->attempts);
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/// Grading method.
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$mform->addElement('select', 'grademethod', get_string('grademethod', 'quiz'), quiz_get_grading_options());
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$mform->addHelpButton('grademethod', 'grademethod', 'quiz');
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$mform->setAdvanced('grademethod', $quizconfig->grademethod_adv);
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$mform->setDefault('grademethod', $quizconfig->grademethod);
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$mform->disabledIf('grademethod', 'attempts', 'eq', 1);
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//-------------------------------------------------------------------------------
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$mform->addElement('header', 'layouthdr', get_string('layout', 'quiz'));
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/// Shuffle questions.
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$shuffleoptions = array(0 => get_string('asshownoneditscreen', 'quiz'), 1 => get_string('shuffledrandomly', 'quiz'));
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$mform->addElement('select', 'shufflequestions', get_string('questionorder', 'quiz'), $shuffleoptions, array('id' => 'id_shufflequestions'));
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$mform->setAdvanced('shufflequestions', $quizconfig->shufflequestions_adv);
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$mform->setDefault('shufflequestions', $quizconfig->shufflequestions);
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/// Questions per page.
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$pageoptions = array();
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$pageoptions[0] = get_string('neverallononepage', 'quiz');
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$pageoptions[1] = get_string('everyquestion', 'quiz');
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for ($i = 2; $i <= QUIZ_MAX_QPP_OPTION; ++$i) {
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$pageoptions[$i] = get_string('everynquestions', 'quiz', $i);
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}
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$pagegroup = array();
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$pagegroup[] = &$mform->createElement('select', 'questionsperpage', get_string('newpage', 'quiz'), $pageoptions, array('id' => 'id_questionsperpage'));
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$mform->setDefault('questionsperpage', $quizconfig->questionsperpage);
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if (!empty($this->_cm)) {
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$pagegroup[] = &$mform->createElement('checkbox', 'repaginatenow', '', get_string('repaginatenow', 'quiz'), array('id' => 'id_repaginatenow'));
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$mform->disabledIf('repaginatenow', 'shufflequestions', 'eq', 1);
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$PAGE->requires->yui2_lib('event');
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$PAGE->requires->js('/mod/quiz/edit.js');
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$PAGE->requires->js_init_call('quiz_settings_init');
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}
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$mform->addGroup($pagegroup, 'questionsperpagegrp', get_string('newpage', 'quiz'), null, false);
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$mform->addHelpButton('questionsperpagegrp', 'newpage', 'quiz');
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$mform->setAdvanced('questionsperpagegrp', $quizconfig->questionsperpage_adv);
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//-------------------------------------------------------------------------------
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$mform->addElement('header', 'interactionhdr', get_string('questionbehaviour', 'quiz'));
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/// Shuffle within questions.
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$mform->addElement('selectyesno', 'shuffleanswers', get_string('shufflewithin', 'quiz'));
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$mform->addHelpButton('shuffleanswers', 'shufflewithin', 'quiz');
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$mform->setAdvanced('shuffleanswers', $quizconfig->shuffleanswers_adv);
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$mform->setDefault('shuffleanswers', $quizconfig->shuffleanswers);
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/// How questions behave (question behaviour).
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if (!empty($this->current->preferredbehaviour)) {
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$currentbehaviour = $this->current->preferredbehaviour;
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} else {
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$currentbehaviour = '';
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}
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$behaviours = question_engine::get_behaviour_options($currentbehaviour);
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$mform->addElement('select', 'preferredbehaviour', get_string('howquestionsbehave', 'question'), $behaviours);
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$mform->addHelpButton('preferredbehaviour', 'howquestionsbehave', 'question');
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$mform->setAdvanced('preferredbehaviour', $CFG->quiz_fix_preferredbehaviour);
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$mform->setDefault('preferredbehaviour', $CFG->quiz_preferredbehaviour);
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/// Each attempt builds on last.
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$mform->addElement('selectyesno', 'attemptonlast', get_string('eachattemptbuildsonthelast', 'quiz'));
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$mform->addHelpButton('attemptonlast', 'eachattemptbuildsonthelast', 'quiz');
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$mform->setAdvanced('attemptonlast', $quizconfig->attemptonlast_adv);
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$mform->setDefault('attemptonlast', $quizconfig->attemptonlast);
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$mform->disabledIf('attemptonlast', 'attempts', 'eq', 1);
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//-------------------------------------------------------------------------------
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$mform->addElement('header', 'reviewoptionshdr', get_string('reviewoptionsheading', 'quiz'));
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$mform->addHelpButton('reviewoptionshdr', 'reviewoptionsheading', 'quiz');
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/// Review options.
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$this->add_review_options_group($mform, $quizconfig, 'during', mod_quiz_display_options::DURING);
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$this->add_review_options_group($mform, $quizconfig, 'immediately', mod_quiz_display_options::IMMEDIATELY_AFTER);
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$this->add_review_options_group($mform, $quizconfig, 'open', mod_quiz_display_options::LATER_WHILE_OPEN);
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$this->add_review_options_group($mform, $quizconfig, 'closed', mod_quiz_display_options::AFTER_CLOSE);
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foreach ($behaviours as $behaviour => $notused) {
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$unusedoptions = question_engine::get_behaviour_unused_display_options($behaviour);
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foreach ($unusedoptions as $unusedoption) {
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$mform->disabledIf($unusedoption . 'during', 'preferredbehaviour',
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'eq', $behaviour);
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}
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}
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$mform->disabledIf('attemptduring', 'preferredbehaviour',
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'neq', 'wontmatch');
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$mform->disabledIf('overallfeedbackduring', 'preferredbehaviour',
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'neq', 'wontmatch');
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//-------------------------------------------------------------------------------
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$mform->addElement('header', 'display', get_string('display', 'form'));
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/// Show user picture.
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$mform->addElement('selectyesno', 'showuserpicture', get_string('showuserpicture', 'quiz'));
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$mform->addHelpButton('showuserpicture', 'showuserpicture', 'quiz');
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$mform->setAdvanced('showuserpicture', $quizconfig->showuserpicture_adv);
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$mform->setDefault('showuserpicture', $quizconfig->showuserpicture);
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/// Overall decimal points.
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$options = array();
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for ($i = 0; $i <= QUIZ_MAX_DECIMAL_OPTION; $i++) {
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$options[$i] = $i;
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}
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$mform->addElement('select', 'decimalpoints', get_string('decimalplaces', 'quiz'), $options);
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$mform->addHelpButton('decimalpoints', 'decimalplaces', 'quiz');
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$mform->setAdvanced('decimalpoints', $quizconfig->decimalpoints_adv);
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$mform->setDefault('decimalpoints', $quizconfig->decimalpoints);
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/// Question decimal points.
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$options = array(-1 => get_string('sameasoverall', 'quiz'));
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for ($i = 0; $i <= QUIZ_MAX_Q_DECIMAL_OPTION; $i++) {
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$options[$i] = $i;
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}
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$mform->addElement('select', 'questiondecimalpoints', get_string('decimalplacesquestion', 'quiz'), $options);
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$mform->addHelpButton('questiondecimalpoints', 'decimalplacesquestion','quiz');
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$mform->setAdvanced('questiondecimalpoints', $quizconfig->questiondecimalpoints_adv);
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$mform->setDefault('questiondecimalpoints', $quizconfig->questiondecimalpoints);
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// Show blocks during quiz attempt
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$mform->addElement('selectyesno', 'showblocks', get_string('showblocks', 'quiz'));
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$mform->addHelpButton('showblocks', 'showblocks', 'quiz');
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$mform->setAdvanced('showblocks', $quizconfig->showblocks_adv);
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$mform->setDefault('showblocks', $quizconfig->showblocks);
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//-------------------------------------------------------------------------------
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$mform->addElement('header', 'security', get_string('extraattemptrestrictions', 'quiz'));
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/// Enforced time delay between quiz attempts.
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$mform->addElement('passwordunmask', 'quizpassword', get_string('requirepassword', 'quiz'));
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$mform->setType('quizpassword', PARAM_TEXT);
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$mform->addHelpButton('quizpassword', 'requirepassword', 'quiz');
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$mform->setAdvanced('quizpassword', $quizconfig->password_adv);
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$mform->setDefault('quizpassword', $quizconfig->password);
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/// IP address.
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$mform->addElement('text', 'subnet', get_string('requiresubnet', 'quiz'));
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$mform->setType('subnet', PARAM_TEXT);
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$mform->addHelpButton('subnet', 'requiresubnet', 'quiz');
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$mform->setAdvanced('subnet', $quizconfig->subnet_adv);
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$mform->setDefault('subnet', $quizconfig->subnet);
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/// Enforced time delay between quiz attempts.
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$mform->addElement('duration', 'delay1', get_string('delay1st2nd', 'quiz'), array('optional' => true));
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$mform->addHelpButton('delay1', 'delay1st2nd', 'quiz');
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$mform->setAdvanced('delay1', $quizconfig->delay1_adv);
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$mform->setDefault('delay1', $quizconfig->delay1);
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$mform->disabledIf('delay1', 'attempts', 'eq', 1);
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$mform->addElement('duration', 'delay2', get_string('delaylater', 'quiz'), array('optional' => true));
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$mform->addHelpButton('delay2', 'delaylater', 'quiz');
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$mform->setAdvanced('delay2', $quizconfig->delay2_adv);
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$mform->setDefault('delay2', $quizconfig->delay2);
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$mform->disabledIf('delay2', 'attempts', 'eq', 1);
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$mform->disabledIf('delay2', 'attempts', 'eq', 2);
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/// 'Secure' window.
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$options = array(
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0 => get_string('none', 'quiz'),
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1 => get_string('popupwithjavascriptsupport', 'quiz'));
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if (!empty($CFG->enablesafebrowserintegration)) {
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$options[2] = get_string('requiresafeexambrowser', 'quiz');
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}
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$mform->addElement('select', 'popup', get_string('browsersecurity', 'quiz'), $options);
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$mform->addHelpButton('popup', 'browsersecurity', 'quiz');
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$mform->setAdvanced('popup', $quizconfig->popup_adv);
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$mform->setDefault('popup', $quizconfig->popup);
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//-------------------------------------------------------------------------------
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$mform->addElement('header', 'overallfeedbackhdr', get_string('overallfeedback', 'quiz'));
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$mform->addHelpButton('overallfeedbackhdr', 'overallfeedback', 'quiz');
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$mform->addElement('hidden', 'grade', $quizconfig->maximumgrade);
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$mform->setType('grade', PARAM_RAW);
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if (isset($this->current->grade)) {
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$needwarning = $this->current->grade === 0;
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} else {
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$needwarning = $quizconfig->maximumgrade == 0;
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}
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if ($needwarning) {
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$mform->addElement('static', 'nogradewarning', '', get_string('nogradewarning', 'quiz'));
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}
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$mform->addElement('static', 'gradeboundarystatic1', get_string('gradeboundary', 'quiz'), '100%');
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$repeatarray = array();
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$repeatedoptions = array();
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$repeatarray[] = MoodleQuickForm::createElement('editor', 'feedbacktext', get_string('feedback', 'quiz'), null, array('maxfiles'=>EDITOR_UNLIMITED_FILES, 'noclean'=>true, 'context'=>$this->context));
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$repeatarray[] = MoodleQuickForm::createElement('text', 'feedbackboundaries', get_string('gradeboundary', 'quiz'), array('size' => 10));
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$repeatedoptions['feedbacktext']['type'] = PARAM_RAW;
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$repeatedoptions['feedbackboundaries']['type'] = PARAM_RAW;
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if (!empty($this->_instance)) {
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$this->_feedbacks = $DB->get_records('quiz_feedback',
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array('quizid' => $this->_instance), 'mingrade DESC');
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} else {
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$this->_feedbacks = array();
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}
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$numfeedbacks = max(count($this->_feedbacks) * 1.5, 5);
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$nextel = $this->repeat_elements($repeatarray, $numfeedbacks - 1,
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$repeatedoptions, 'boundary_repeats', 'boundary_add_fields', 3,
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get_string('addmoreoverallfeedbacks', 'quiz'), true);
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// Put some extra elements in before the button
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$mform->insertElementBefore(MoodleQuickForm::createElement('editor',
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"feedbacktext[$nextel]", get_string('feedback', 'quiz'), null,
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array('maxfiles' => EDITOR_UNLIMITED_FILES, 'noclean' => true,
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'context' => $this->context)),
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'boundary_add_fields');
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$mform->insertElementBefore(MoodleQuickForm::createElement('static',
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'gradeboundarystatic2', get_string('gradeboundary', 'quiz'), '0%'),
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'boundary_add_fields');
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// Add the disabledif rules. We cannot do this using the $repeatoptions parameter to
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// repeat_elements becuase we don't want to dissable the first feedbacktext.
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for ($i = 0; $i < $nextel; $i++) {
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$mform->disabledIf('feedbackboundaries[' . $i . ']', 'grade', 'eq', 0);
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$mform->disabledIf('feedbacktext[' . ($i + 1) . ']', 'grade', 'eq', 0);
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}
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//-------------------------------------------------------------------------------
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$this->standard_coursemodule_elements();
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//-------------------------------------------------------------------------------
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// buttons
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$this->add_action_buttons();
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}
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protected function add_review_options_group($mform, $quizconfig, $whenname, $when) {
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$group = array();
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foreach (self::$reviewfields as $field => $label) {
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$group[] = $mform->createElement('checkbox', $field . $whenname, '', $label);
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}
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$mform->addGroup($group, $whenname . 'optionsgrp', get_string('review' . $whenname, 'quiz'), null, false);
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foreach (self::$reviewfields as $field => $notused) {
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$cfgfield = 'review' . $field;
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if ($quizconfig->$cfgfield & $when) {
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$mform->setDefault($field . $whenname, 1);
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} else {
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$mform->setDefault($field . $whenname, 0);
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}
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}
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$mform->disabledIf('correctness' . $whenname, 'attempt' . $whenname);
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$mform->disabledIf('specificfeedback' . $whenname, 'attempt' . $whenname);
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$mform->disabledIf('generalfeedback' . $whenname, 'attempt' . $whenname);
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$mform->disabledIf('rightanswer' . $whenname, 'attempt' . $whenname);
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}
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protected function preprocessing_review_settings(&$toform, $whenname, $when) {
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foreach (self::$reviewfields as $field => $notused) {
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$fieldname = 'review' . $field;
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if (array_key_exists($fieldname, $toform)) {
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$toform[$field . $whenname] = $toform[$fieldname] & $when;
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}
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}
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}
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public function data_preprocessing(&$toform) {
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if (isset($toform['grade'])) {
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$toform['grade'] = $toform['grade'] + 0; // Convert to a real number, so we don't get 0.0000.
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}
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if (count($this->_feedbacks)) {
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$key = 0;
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foreach ($this->_feedbacks as $feedback){
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$draftid = file_get_submitted_draft_itemid('feedbacktext['.$key.']');
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$toform['feedbacktext['.$key.']']['text'] = file_prepare_draft_area(
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$draftid, // draftid
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$this->context->id, // context
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'mod_quiz', // component
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'feedback', // filarea
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!empty($feedback->id) ? (int) $feedback->id : null, // itemid
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null,
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$feedback->feedbacktext // text
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);
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$toform['feedbacktext['.$key.']']['format'] = $feedback->feedbacktextformat;
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$toform['feedbacktext['.$key.']']['itemid'] = $draftid;
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if ($toform['grade'] == 0) {
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// When a quiz is un-graded, there can only be one lot of
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// feedback. If the quiz previously had a maximum grade and
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// several lots of feedback, we must now avoid putting text
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// into input boxes that are disabled, but which the
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// validation will insist are blank.
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break;
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}
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if ($feedback->mingrade > 0) {
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$toform['feedbackboundaries['.$key.']'] = (100.0 * $feedback->mingrade / $toform['grade']) . '%';
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}
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$key++;
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}
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}
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if (isset($toform['timelimit'])) {
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$toform['timelimitenable'] = $toform['timelimit'] > 0;
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}
|
|
|
|
$this->preprocessing_review_settings($toform, 'during', mod_quiz_display_options::DURING);
|
|
$this->preprocessing_review_settings($toform, 'immediately', mod_quiz_display_options::IMMEDIATELY_AFTER);
|
|
$this->preprocessing_review_settings($toform, 'open', mod_quiz_display_options::LATER_WHILE_OPEN);
|
|
$this->preprocessing_review_settings($toform, 'closed', mod_quiz_display_options::AFTER_CLOSE);
|
|
$toform['attemptduring'] = true;
|
|
$toform['overallfeedbackduring'] = false;
|
|
|
|
// Password field - different in form to stop browsers that remember
|
|
// passwords from getting confused.
|
|
if (isset($toform['password'])) {
|
|
$toform['quizpassword'] = $toform['password'];
|
|
unset($toform['password']);
|
|
}
|
|
}
|
|
|
|
public function validation($data, $files) {
|
|
$errors = parent::validation($data, $files);
|
|
|
|
// Check open and close times are consistent.
|
|
if ($data['timeopen'] != 0 && $data['timeclose'] != 0 && $data['timeclose'] < $data['timeopen']) {
|
|
$errors['timeclose'] = get_string('closebeforeopen', 'quiz');
|
|
}
|
|
|
|
// Check the boundary value is a number or a percentage, and in range.
|
|
$i = 0;
|
|
while (!empty($data['feedbackboundaries'][$i] )) {
|
|
$boundary = trim($data['feedbackboundaries'][$i]);
|
|
if (strlen($boundary) > 0 && $boundary[strlen($boundary) - 1] == '%') {
|
|
$boundary = trim(substr($boundary, 0, -1));
|
|
if (is_numeric($boundary)) {
|
|
$boundary = $boundary * $data['grade'] / 100.0;
|
|
} else {
|
|
$errors["feedbackboundaries[$i]"] = get_string('feedbackerrorboundaryformat', 'quiz', $i + 1);
|
|
}
|
|
}
|
|
if (is_numeric($boundary) && $boundary <= 0 || $boundary >= $data['grade'] ) {
|
|
$errors["feedbackboundaries[$i]"] = get_string('feedbackerrorboundaryoutofrange', 'quiz', $i + 1);
|
|
}
|
|
if (is_numeric($boundary) && $i > 0 && $boundary >= $data['feedbackboundaries'][$i - 1]) {
|
|
$errors["feedbackboundaries[$i]"] = get_string('feedbackerrororder', 'quiz', $i + 1);
|
|
}
|
|
$data['feedbackboundaries'][$i] = $boundary;
|
|
$i += 1;
|
|
}
|
|
$numboundaries = $i;
|
|
|
|
// Check there is nothing in the remaining unused fields.
|
|
if (!empty($data['feedbackboundaries'])) {
|
|
for ($i = $numboundaries; $i < count($data['feedbackboundaries']); $i += 1) {
|
|
if (!empty($data['feedbackboundaries'][$i] ) && trim($data['feedbackboundaries'][$i] ) != '') {
|
|
$errors["feedbackboundaries[$i]"] = get_string('feedbackerrorjunkinboundary', 'quiz', $i + 1);
|
|
}
|
|
}
|
|
}
|
|
for ($i = $numboundaries + 1; $i < count($data['feedbacktext']); $i += 1) {
|
|
if (!empty($data['feedbacktext'][$i]['text']) && trim($data['feedbacktext'][$i]['text'] ) != '') {
|
|
$errors["feedbacktext[$i]"] = get_string('feedbackerrorjunkinfeedback', 'quiz', $i + 1);
|
|
}
|
|
}
|
|
|
|
return $errors;
|
|
}
|
|
}
|