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279 lines
11 KiB
279 lines
11 KiB
<?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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* Settings form for overrides in the lesson module.
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*
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* @package mod_lesson
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* @copyright 2015 Jean-Michel Vedrine
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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($CFG->libdir . '/formslib.php');
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require_once($CFG->dirroot . '/mod/lesson/mod_form.php');
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/**
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* Form for editing settings overrides.
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*
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* @copyright 2015 Jean-Michel Vedrine
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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 lesson_override_form extends moodleform {
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/** @var object course module object. */
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protected $cm;
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/** @var object the lesson settings object. */
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protected $lesson;
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/** @var context the lesson context. */
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protected $context;
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/** @var bool editing group override (true) or user override (false). */
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protected $groupmode;
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/** @var int groupid, if provided. */
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protected $groupid;
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/** @var int userid, if provided. */
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protected $userid;
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/**
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* Constructor.
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* @param moodle_url $submiturl the form action URL.
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* @param object $cm course module object.
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* @param object $lesson the lesson settings object.
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* @param object $context the lesson context.
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* @param bool $groupmode editing group override (true) or user override (false).
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* @param object $override the override being edited, if it already exists.
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*/
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public function __construct($submiturl, $cm, $lesson, $context, $groupmode, $override) {
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$this->cm = $cm;
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$this->lesson = $lesson;
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$this->context = $context;
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$this->groupmode = $groupmode;
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$this->groupid = empty($override->groupid) ? 0 : $override->groupid;
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$this->userid = empty($override->userid) ? 0 : $override->userid;
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parent::__construct($submiturl, null, 'post');
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}
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/**
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* Define this form - called by the parent constructor
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*/
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protected function definition() {
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global $CFG, $DB;
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$cm = $this->cm;
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$mform = $this->_form;
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$mform->addElement('header', 'override', get_string('override', 'lesson'));
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if ($this->groupmode) {
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// Group override.
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if ($this->groupid) {
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// There is already a groupid, so freeze the selector.
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$groupchoices = array();
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$groupchoices[$this->groupid] = groups_get_group_name($this->groupid);
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$mform->addElement('select', 'groupid',
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get_string('overridegroup', 'lesson'), $groupchoices);
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$mform->freeze('groupid');
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} else {
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// Prepare the list of groups.
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$groups = groups_get_all_groups($cm->course);
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if (empty($groups)) {
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// Generate an error.
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$link = new moodle_url('/mod/lesson/overrides.php', array('cmid' => $cm->id));
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print_error('groupsnone', 'lesson', $link);
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}
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$groupchoices = array();
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foreach ($groups as $group) {
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$groupchoices[$group->id] = $group->name;
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}
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unset($groups);
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if (count($groupchoices) == 0) {
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$groupchoices[0] = get_string('none');
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}
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$mform->addElement('select', 'groupid',
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get_string('overridegroup', 'lesson'), $groupchoices);
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$mform->addRule('groupid', get_string('required'), 'required', null, 'client');
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}
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} else {
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// User override.
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if ($this->userid) {
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// There is already a userid, so freeze the selector.
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$user = $DB->get_record('user', array('id' => $this->userid));
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$userchoices = array();
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$userchoices[$this->userid] = fullname($user);
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$mform->addElement('select', 'userid',
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get_string('overrideuser', 'lesson'), $userchoices);
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$mform->freeze('userid');
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} else {
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// Prepare the list of users.
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$users = get_enrolled_users($this->context, '', 0,
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'u.id, u.email, ' . get_all_user_name_fields(true, 'u'));
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// Filter users based on any fixed restrictions (groups, profile).
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$info = new \core_availability\info_module($cm);
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$users = $info->filter_user_list($users);
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if (empty($users)) {
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// Generate an error.
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$link = new moodle_url('/mod/lesson/overrides.php', array('cmid' => $cm->id));
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print_error('usersnone', 'lesson', $link);
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}
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$userchoices = array();
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$canviewemail = in_array('email', get_extra_user_fields($this->context));
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foreach ($users as $id => $user) {
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if (empty($invalidusers[$id]) || (!empty($override) &&
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$id == $override->userid)) {
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if ($canviewemail) {
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$userchoices[$id] = fullname($user) . ', ' . $user->email;
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} else {
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$userchoices[$id] = fullname($user);
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}
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}
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}
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unset($users);
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if (count($userchoices) == 0) {
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$userchoices[0] = get_string('none');
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}
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$mform->addElement('searchableselector', 'userid',
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get_string('overrideuser', 'lesson'), $userchoices);
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$mform->addRule('userid', get_string('required'), 'required', null, 'client');
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}
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}
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// Password.
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// This field has to be above the date and timelimit fields,
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// otherwise browsers will clear it when those fields are changed.
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$mform->addElement('passwordunmask', 'password', get_string('usepassword', 'lesson'));
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$mform->setType('password', PARAM_TEXT);
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$mform->addHelpButton('password', 'usepassword', 'lesson');
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$mform->setDefault('password', $this->lesson->password);;
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// Open and close dates.
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$mform->addElement('date_time_selector', 'available', get_string('available', 'lesson'), array('optional' => true));
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$mform->setDefault('available', $this->lesson->available);
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$mform->addElement('date_time_selector', 'deadline', get_string('deadline', 'lesson'), array('optional' => true));
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$mform->setDefault('deadline', $this->lesson->deadline);
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// Lesson time limit.
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$mform->addElement('duration', 'timelimit',
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get_string('timelimit', 'lesson'), array('optional' => true));
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if ($this->lesson->timelimit != 0) {
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$mform->setDefault('timelimit', 0);
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} else {
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$mform->setDefault('timelimit', $this->lesson->timelimit);
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}
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// Try a question again.
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$mform->addElement('selectyesno', 'review', get_string('displayreview', 'lesson'));
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$mform->addHelpButton('review', 'displayreview', 'lesson');
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$mform->setDefault('review', $this->lesson->review);
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// Number of attempts.
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$numbers = array();
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for ($i = 10; $i > 0; $i--) {
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$numbers[$i] = $i;
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}
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$mform->addElement('select', 'maxattempts', get_string('maximumnumberofattempts', 'lesson'), $numbers);
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$mform->addHelpButton('maxattempts', 'maximumnumberofattempts', 'lesson');
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$mform->setDefault('maxattempts', $this->lesson->maxattempts);
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// Retake allowed.
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$mform->addElement('selectyesno', 'retake', get_string('retakesallowed', 'lesson'));
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$mform->addHelpButton('retake', 'retakesallowed', 'lesson');
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$mform->setDefault('retake', $this->lesson->retake);
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// Submit buttons.
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$mform->addElement('submit', 'resetbutton',
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get_string('reverttodefaults', 'lesson'));
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$buttonarray = array();
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$buttonarray[] = $mform->createElement('submit', 'submitbutton',
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get_string('save', 'lesson'));
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$buttonarray[] = $mform->createElement('submit', 'againbutton',
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get_string('saveoverrideandstay', 'lesson'));
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$buttonarray[] = $mform->createElement('cancel');
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$mform->addGroup($buttonarray, 'buttonbar', '', array(' '), false);
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$mform->closeHeaderBefore('buttonbar');
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}
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/**
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* Validate the submitted form data.
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*
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* @param array $data array of ("fieldname"=>value) of submitted data
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* @param array $files array of uploaded files "element_name"=>tmp_file_path
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* @return array of "element_name"=>"error_description" if there are errors
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*/
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public function validation($data, $files) {
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global $COURSE, $DB;
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$errors = parent::validation($data, $files);
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$mform =& $this->_form;
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$lesson = $this->lesson;
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if ($mform->elementExists('userid')) {
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if (empty($data['userid'])) {
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$errors['userid'] = get_string('required');
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}
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}
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if ($mform->elementExists('groupid')) {
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if (empty($data['groupid'])) {
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$errors['groupid'] = get_string('required');
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}
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}
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// Ensure that the dates make sense.
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if (!empty($data['available']) && !empty($data['deadline'])) {
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if ($data['deadline'] < $data['available'] ) {
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$errors['deadline'] = get_string('closebeforeopen', 'lesson');
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}
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}
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// Ensure that at least one lesson setting was changed.
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$changed = false;
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$keys = array('available', 'deadline', 'review', 'timelimit', 'maxattempts', 'retake', 'password');
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foreach ($keys as $key) {
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if ($data[$key] != $lesson->{$key}) {
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$changed = true;
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break;
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}
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}
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if (!$changed) {
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$errors['available'] = get_string('nooverridedata', 'lesson');
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}
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return $errors;
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}
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}
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