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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/>.
/**
* Defines the quiz module ettings form.
*
* @package mod
* @subpackage quiz
* @copyright 2006 Jamie Pratt
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once($CFG->dirroot . '/course/moodleform_mod.php');
require_once($CFG->dirroot . '/mod/quiz/locallib.php');
/**
* Settings form for the quiz module.
*
* @copyright 2006 Jamie Pratt
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class mod_quiz_mod_form extends moodleform_mod {
protected $_feedbacks;
protected static $reviewfields = array(); // Initialised in the constructor.
public function __construct($current, $section, $cm, $course) {
self::$reviewfields = array(
'attempt' => get_string('theattempt', 'quiz'),
'correctness' => get_string('whethercorrect', 'question'),
'marks' => get_string('marks', 'question'),
'specificfeedback' => get_string('specificfeedback', 'question'),
'generalfeedback' => get_string('generalfeedback', 'question'),
'rightanswer' => get_string('rightanswer', 'question'),
'overallfeedback' => get_string('overallfeedback', 'quiz'),
);
parent::__construct($current, $section, $cm, $course);
}
protected function definition() {
global $COURSE, $CFG, $DB, $PAGE;
$quizconfig = get_config('quiz');
$mform = $this->_form;
//-------------------------------------------------------------------------------
$mform->addElement('header', 'general', get_string('general', 'form'));
// Name.
$mform->addElement('text', 'name', get_string('name'), array('size'=>'64'));
if (!empty($CFG->formatstringstriptags)) {
$mform->setType('name', PARAM_TEXT);
} else {
$mform->setType('name', PARAM_CLEANHTML);
}
$mform->addRule('name', null, 'required', null, 'client');
// Introduction.
$this->add_intro_editor(false, get_string('introduction', 'quiz'));
// Open and close dates.
$mform->addElement('date_time_selector', 'timeopen', get_string('quizopen', 'quiz'),
array('optional' => true, 'step' => 1));
$mform->addHelpButton('timeopen', 'quizopenclose', 'quiz');
$mform->addElement('date_time_selector', 'timeclose', get_string('quizclose', 'quiz'),
array('optional' => true, 'step' => 1));
// Time limit.
$mform->addElement('duration', 'timelimit', get_string('timelimit', 'quiz'),
array('optional' => true));
$mform->addHelpButton('timelimit', 'timelimit', 'quiz');
$mform->setAdvanced('timelimit', $quizconfig->timelimit_adv);
$mform->setDefault('timelimit', $quizconfig->timelimit);
// Number of attempts.
$attemptoptions = array('0' => get_string('unlimited'));
for ($i = 1; $i <= QUIZ_MAX_ATTEMPT_OPTION; $i++) {
$attemptoptions[$i] = $i;
}
$mform->addElement('select', 'attempts', get_string('attemptsallowed', 'quiz'),
$attemptoptions);
$mform->setAdvanced('attempts', $quizconfig->attempts_adv);
$mform->setDefault('attempts', $quizconfig->attempts);
// Grading method.
$mform->addElement('select', 'grademethod', get_string('grademethod', 'quiz'),
quiz_get_grading_options());
$mform->addHelpButton('grademethod', 'grademethod', 'quiz');
$mform->setAdvanced('grademethod', $quizconfig->grademethod_adv);
$mform->setDefault('grademethod', $quizconfig->grademethod);
$mform->disabledIf('grademethod', 'attempts', 'eq', 1);
//-------------------------------------------------------------------------------
// Grade settings
$this->standard_grading_coursemodule_elements();
$mform->removeElement('grade');
$mform->addElement('hidden', 'grade', $quizconfig->maximumgrade);
$mform->setType('grade', PARAM_NUMBER);
//-------------------------------------------------------------------------------
$mform->addElement('header', 'layouthdr', get_string('layout', 'quiz'));
// Shuffle questions.
$shuffleoptions = array(
0 => get_string('asshownoneditscreen', 'quiz'),
1 => get_string('shuffledrandomly', 'quiz')
);
$mform->addElement('select', 'shufflequestions', get_string('questionorder', 'quiz'),
$shuffleoptions, array('id' => 'id_shufflequestions'));
$mform->setAdvanced('shufflequestions', $quizconfig->shufflequestions_adv);
$mform->setDefault('shufflequestions', $quizconfig->shufflequestions);
// Questions per page.
$pageoptions = array();
$pageoptions[0] = get_string('neverallononepage', 'quiz');
$pageoptions[1] = get_string('everyquestion', 'quiz');
for ($i = 2; $i <= QUIZ_MAX_QPP_OPTION; ++$i) {
$pageoptions[$i] = get_string('everynquestions', 'quiz', $i);
}
$pagegroup = array();
$pagegroup[] = $mform->createElement('select', 'questionsperpage',
get_string('newpage', 'quiz'), $pageoptions, array('id' => 'id_questionsperpage'));
$mform->setDefault('questionsperpage', $quizconfig->questionsperpage);
if (!empty($this->_cm)) {
$pagegroup[] = $mform->createElement('checkbox', 'repaginatenow', '',
get_string('repaginatenow', 'quiz'), array('id' => 'id_repaginatenow'));
$mform->disabledIf('repaginatenow', 'shufflequestions', 'eq', 1);
$PAGE->requires->yui2_lib('event');
$PAGE->requires->js('/mod/quiz/edit.js');
$PAGE->requires->js_init_call('quiz_settings_init');
}
$mform->addGroup($pagegroup, 'questionsperpagegrp',
get_string('newpage', 'quiz'), null, false);
$mform->addHelpButton('questionsperpagegrp', 'newpage', 'quiz');
$mform->setAdvanced('questionsperpagegrp', $quizconfig->questionsperpage_adv);
//-------------------------------------------------------------------------------
$mform->addElement('header', 'interactionhdr', get_string('questionbehaviour', 'quiz'));
// Shuffle within questions.
$mform->addElement('selectyesno', 'shuffleanswers', get_string('shufflewithin', 'quiz'));
$mform->addHelpButton('shuffleanswers', 'shufflewithin', 'quiz');
$mform->setAdvanced('shuffleanswers', $quizconfig->shuffleanswers_adv);
$mform->setDefault('shuffleanswers', $quizconfig->shuffleanswers);
// How questions behave (question behaviour).
if (!empty($this->current->preferredbehaviour)) {
$currentbehaviour = $this->current->preferredbehaviour;
} else {
$currentbehaviour = '';
}
$behaviours = question_engine::get_behaviour_options($currentbehaviour);
$mform->addElement('select', 'preferredbehaviour',
get_string('howquestionsbehave', 'question'), $behaviours);
$mform->addHelpButton('preferredbehaviour', 'howquestionsbehave', 'question');
$mform->setDefault('preferredbehaviour', $quizconfig->preferredbehaviour);
// Each attempt builds on last.
$mform->addElement('selectyesno', 'attemptonlast',
get_string('eachattemptbuildsonthelast', 'quiz'));
$mform->addHelpButton('attemptonlast', 'eachattemptbuildsonthelast', 'quiz');
$mform->setAdvanced('attemptonlast', $quizconfig->attemptonlast_adv);
$mform->setDefault('attemptonlast', $quizconfig->attemptonlast);
$mform->disabledIf('attemptonlast', 'attempts', 'eq', 1);
//-------------------------------------------------------------------------------
$mform->addElement('header', 'reviewoptionshdr',
get_string('reviewoptionsheading', 'quiz'));
$mform->addHelpButton('reviewoptionshdr', 'reviewoptionsheading', 'quiz');
// Review options.
$this->add_review_options_group($mform, $quizconfig, 'during',
mod_quiz_display_options::DURING);
$this->add_review_options_group($mform, $quizconfig, 'immediately',
mod_quiz_display_options::IMMEDIATELY_AFTER);
$this->add_review_options_group($mform, $quizconfig, 'open',
mod_quiz_display_options::LATER_WHILE_OPEN);
$this->add_review_options_group($mform, $quizconfig, 'closed',
mod_quiz_display_options::AFTER_CLOSE);
foreach ($behaviours as $behaviour => $notused) {
$unusedoptions = question_engine::get_behaviour_unused_display_options($behaviour);
foreach ($unusedoptions as $unusedoption) {
$mform->disabledIf($unusedoption . 'during', 'preferredbehaviour',
'eq', $behaviour);
}
}
$mform->disabledIf('attemptduring', 'preferredbehaviour',
'neq', 'wontmatch');
$mform->disabledIf('overallfeedbackduring', 'preferredbehaviour',
'neq', 'wontmatch');
//-------------------------------------------------------------------------------
$mform->addElement('header', 'display', get_string('display', 'form'));
// Show user picture.
$mform->addElement('selectyesno', 'showuserpicture',
get_string('showuserpicture', 'quiz'));
$mform->addHelpButton('showuserpicture', 'showuserpicture', 'quiz');
$mform->setAdvanced('showuserpicture', $quizconfig->showuserpicture_adv);
$mform->setDefault('showuserpicture', $quizconfig->showuserpicture);
// Overall decimal points.
$options = array();
for ($i = 0; $i <= QUIZ_MAX_DECIMAL_OPTION; $i++) {
$options[$i] = $i;
}
$mform->addElement('select', 'decimalpoints', get_string('decimalplaces', 'quiz'),
$options);
$mform->addHelpButton('decimalpoints', 'decimalplaces', 'quiz');
$mform->setAdvanced('decimalpoints', $quizconfig->decimalpoints_adv);
$mform->setDefault('decimalpoints', $quizconfig->decimalpoints);
// Question decimal points.
$options = array(-1 => get_string('sameasoverall', 'quiz'));
for ($i = 0; $i <= QUIZ_MAX_Q_DECIMAL_OPTION; $i++) {
$options[$i] = $i;
}
$mform->addElement('select', 'questiondecimalpoints',
get_string('decimalplacesquestion', 'quiz'), $options);
$mform->addHelpButton('questiondecimalpoints', 'decimalplacesquestion', 'quiz');
$mform->setAdvanced('questiondecimalpoints', $quizconfig->questiondecimalpoints_adv);
$mform->setDefault('questiondecimalpoints', $quizconfig->questiondecimalpoints);
// Show blocks during quiz attempt
$mform->addElement('selectyesno', 'showblocks', get_string('showblocks', 'quiz'));
$mform->addHelpButton('showblocks', 'showblocks', 'quiz');
$mform->setAdvanced('showblocks', $quizconfig->showblocks_adv);
$mform->setDefault('showblocks', $quizconfig->showblocks);
//-------------------------------------------------------------------------------
$mform->addElement('header', 'security', get_string('extraattemptrestrictions', 'quiz'));
// Require password to begin quiz attempt.
$mform->addElement('passwordunmask', 'quizpassword', get_string('requirepassword', 'quiz'));
$mform->setType('quizpassword', PARAM_TEXT);
$mform->addHelpButton('quizpassword', 'requirepassword', 'quiz');
$mform->setAdvanced('quizpassword', $quizconfig->password_adv);
$mform->setDefault('quizpassword', $quizconfig->password);
// IP address.
$mform->addElement('text', 'subnet', get_string('requiresubnet', 'quiz'));
$mform->setType('subnet', PARAM_TEXT);
$mform->addHelpButton('subnet', 'requiresubnet', 'quiz');
$mform->setAdvanced('subnet', $quizconfig->subnet_adv);
$mform->setDefault('subnet', $quizconfig->subnet);
// Enforced time delay between quiz attempts.
$mform->addElement('duration', 'delay1', get_string('delay1st2nd', 'quiz'),
array('optional' => true));
$mform->addHelpButton('delay1', 'delay1st2nd', 'quiz');
$mform->setAdvanced('delay1', $quizconfig->delay1_adv);
$mform->setDefault('delay1', $quizconfig->delay1);
$mform->disabledIf('delay1', 'attempts', 'eq', 1);
$mform->addElement('duration', 'delay2', get_string('delaylater', 'quiz'),
array('optional' => true));
$mform->addHelpButton('delay2', 'delaylater', 'quiz');
$mform->setAdvanced('delay2', $quizconfig->delay2_adv);
$mform->setDefault('delay2', $quizconfig->delay2);
$mform->disabledIf('delay2', 'attempts', 'eq', 1);
$mform->disabledIf('delay2', 'attempts', 'eq', 2);
// 'Secure' window.
$options = array(
0 => get_string('none', 'quiz'),
1 => get_string('popupwithjavascriptsupport', 'quiz'));
if (!empty($CFG->enablesafebrowserintegration)) {
$options[2] = get_string('requiresafeexambrowser', 'quiz');
}
$mform->addElement('select', 'popup', get_string('browsersecurity', 'quiz'), $options);
$mform->addHelpButton('popup', 'browsersecurity', 'quiz');
$mform->setAdvanced('popup', $quizconfig->popup_adv);
$mform->setDefault('popup', $quizconfig->popup);
//-------------------------------------------------------------------------------
$mform->addElement('header', 'overallfeedbackhdr', get_string('overallfeedback', 'quiz'));
$mform->addHelpButton('overallfeedbackhdr', 'overallfeedback', 'quiz');
if (isset($this->current->grade)) {
$needwarning = $this->current->grade === 0;
} else {
$needwarning = $quizconfig->maximumgrade == 0;
}
if ($needwarning) {
$mform->addElement('static', 'nogradewarning', '',
get_string('nogradewarning', 'quiz'));
}
$mform->addElement('static', 'gradeboundarystatic1',
get_string('gradeboundary', 'quiz'), '100%');
$repeatarray = array();
$repeatedoptions = array();
$repeatarray[] = MoodleQuickForm::createElement('editor', 'feedbacktext',
get_string('feedback', 'quiz'), null, array('maxfiles' => EDITOR_UNLIMITED_FILES,
'noclean' => true, 'context' => $this->context));
$repeatarray[] = MoodleQuickForm::createElement('text', 'feedbackboundaries',
get_string('gradeboundary', 'quiz'), array('size' => 10));
$repeatedoptions['feedbacktext']['type'] = PARAM_RAW;
$repeatedoptions['feedbackboundaries']['type'] = PARAM_RAW;
if (!empty($this->_instance)) {
$this->_feedbacks = $DB->get_records('quiz_feedback',
array('quizid' => $this->_instance), 'mingrade DESC');
} else {
$this->_feedbacks = array();
}
$numfeedbacks = max(count($this->_feedbacks) * 1.5, 5);
$nextel = $this->repeat_elements($repeatarray, $numfeedbacks - 1,
$repeatedoptions, 'boundary_repeats', 'boundary_add_fields', 3,
get_string('addmoreoverallfeedbacks', 'quiz'), true);
// Put some extra elements in before the button
$mform->insertElementBefore(MoodleQuickForm::createElement('editor',
"feedbacktext[$nextel]", get_string('feedback', 'quiz'), null,
array('maxfiles' => EDITOR_UNLIMITED_FILES, 'noclean' => true,
'context' => $this->context)),
'boundary_add_fields');
$mform->insertElementBefore(MoodleQuickForm::createElement('static',
'gradeboundarystatic2', get_string('gradeboundary', 'quiz'), '0%'),
'boundary_add_fields');
// Add the disabledif rules. We cannot do this using the $repeatoptions parameter to
// repeat_elements because we don't want to dissable the first feedbacktext.
for ($i = 0; $i < $nextel; $i++) {
$mform->disabledIf('feedbackboundaries[' . $i . ']', 'grade', 'eq', 0);
$mform->disabledIf('feedbacktext[' . ($i + 1) . ']', 'grade', 'eq', 0);
}
//-------------------------------------------------------------------------------
$this->standard_coursemodule_elements();
//-------------------------------------------------------------------------------
// buttons
$this->add_action_buttons();
}
protected function add_review_options_group($mform, $quizconfig, $whenname, $when) {
$group = array();
foreach (self::$reviewfields as $field => $label) {
$group[] = $mform->createElement('checkbox', $field . $whenname, '', $label);
}
$mform->addGroup($group, $whenname . 'optionsgrp',
get_string('review' . $whenname, 'quiz'), null, false);
foreach (self::$reviewfields as $field => $notused) {
$cfgfield = 'review' . $field;
if ($quizconfig->$cfgfield & $when) {
$mform->setDefault($field . $whenname, 1);
} else {
$mform->setDefault($field . $whenname, 0);
}
}
$mform->disabledIf('correctness' . $whenname, 'attempt' . $whenname);
$mform->disabledIf('specificfeedback' . $whenname, 'attempt' . $whenname);
$mform->disabledIf('generalfeedback' . $whenname, 'attempt' . $whenname);
$mform->disabledIf('rightanswer' . $whenname, 'attempt' . $whenname);
}
protected function preprocessing_review_settings(&$toform, $whenname, $when) {
foreach (self::$reviewfields as $field => $notused) {
$fieldname = 'review' . $field;
if (array_key_exists($fieldname, $toform)) {
$toform[$field . $whenname] = $toform[$fieldname] & $when;
}
}
}
public function data_preprocessing(&$toform) {
if (isset($toform['grade'])) {
// Convert to a real number, so we don't get 0.0000.
$toform['grade'] = $toform['grade'] + 0;
}
if (count($this->_feedbacks)) {
$key = 0;
foreach ($this->_feedbacks as $feedback) {
$draftid = file_get_submitted_draft_itemid('feedbacktext['.$key.']');
$toform['feedbacktext['.$key.']']['text'] = file_prepare_draft_area(
$draftid, // draftid
$this->context->id, // context
'mod_quiz', // component
'feedback', // filarea
!empty($feedback->id) ? (int) $feedback->id : null, // itemid
null,
$feedback->feedbacktext // text
);
$toform['feedbacktext['.$key.']']['format'] = $feedback->feedbacktextformat;
$toform['feedbacktext['.$key.']']['itemid'] = $draftid;
if ($toform['grade'] == 0) {
// When a quiz is un-graded, there can only be one lot of
// feedback. If the quiz previously had a maximum grade and
// several lots of feedback, we must now avoid putting text
// into input boxes that are disabled, but which the
// validation will insist are blank.
break;
}
if ($feedback->mingrade > 0) {
$toform['feedbackboundaries['.$key.']'] =
(100.0 * $feedback->mingrade / $toform['grade']) . '%';
}
$key++;
}
}
if (isset($toform['timelimit'])) {
$toform['timelimitenable'] = $toform['timelimit'] > 0;
}
$this->preprocessing_review_settings($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;
}
}
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