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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/>.
/**
* This file contains the forms to add session.
*
* @package mod_attendance
* @copyright 2011 Artem Andreev <andreev.artem@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mod_attendance\form;
defined('MOODLE_INTERNAL') || die();
use moodleform;
use mod_attendance_structure;
use DateTime;
use DateInterval;
use DatePeriod;
/**
* class for displaying add form.
*
* @copyright 2011 Artem Andreev <andreev.artem@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class addsession extends moodleform {
/**
* Called to define this moodle form
*
* @return void
*/
public function definition() {
global $CFG, $USER;
$mform =& $this->_form;
$course = $this->_customdata['course'];
$cm = $this->_customdata['cm'];
$modcontext = $this->_customdata['modcontext'];
$pluginconfig = get_config('attendance');
$mform->addElement('header', 'general', get_string('addsession', 'attendance'));
$groupmode = groups_get_activity_groupmode($cm);
switch ($groupmode) {
case NOGROUPS:
$mform->addElement('static', 'sessiontypedescription', get_string('sessiontype', 'attendance'),
get_string('commonsession', 'attendance'));
$mform->addHelpButton('sessiontypedescription', 'sessiontype', 'attendance');
$mform->addElement('hidden', 'sessiontype', mod_attendance_structure::SESSION_COMMON);
$mform->setType('sessiontype', PARAM_INT);
break;
case SEPARATEGROUPS:
$mform->addElement('static', 'sessiontypedescription', get_string('sessiontype', 'attendance'),
get_string('groupsession', 'attendance'));
$mform->addHelpButton('sessiontypedescription', 'sessiontype', 'attendance');
$mform->addElement('hidden', 'sessiontype', mod_attendance_structure::SESSION_GROUP);
$mform->setType('sessiontype', PARAM_INT);
break;
case VISIBLEGROUPS:
$radio = array();
$radio[] = &$mform->createElement('radio', 'sessiontype', '', get_string('commonsession', 'attendance'),
mod_attendance_structure::SESSION_COMMON);
$radio[] = &$mform->createElement('radio', 'sessiontype', '', get_string('groupsession', 'attendance'),
mod_attendance_structure::SESSION_GROUP);
$mform->addGroup($radio, 'sessiontype', get_string('sessiontype', 'attendance'), ' ', false);
$mform->setType('sessiontype', PARAM_INT);
$mform->addHelpButton('sessiontype', 'sessiontype', 'attendance');
$mform->setDefault('sessiontype', mod_attendance_structure::SESSION_COMMON);
break;
}
if ($groupmode == SEPARATEGROUPS or $groupmode == VISIBLEGROUPS) {
if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $modcontext)) {
$groups = groups_get_all_groups ($course->id, $USER->id, $cm->groupingid);
} else {
$groups = groups_get_all_groups($course->id, 0, $cm->groupingid);
}
if ($groups) {
$selectgroups = array();
foreach ($groups as $group) {
$selectgroups[$group->id] = $group->name;
}
$select = &$mform->addElement('select', 'groups', get_string('groups', 'group'), $selectgroups);
$select->setMultiple(true);
$mform->disabledIf('groups', 'sessiontype', 'eq', mod_attendance_structure::SESSION_COMMON);
} else {
if ($groupmode == VISIBLEGROUPS) {
$mform->updateElementAttr($radio, array('disabled' => 'disabled'));
}
$mform->addElement('static', 'groups', get_string('groups', 'group'),
get_string('nogroups', 'attendance'));
if ($groupmode == SEPARATEGROUPS) {
return;
}
}
}
attendance_form_sessiondate_selector($mform);
// Select which status set to use.
$maxstatusset = attendance_get_max_statusset($this->_customdata['att']->id);
if ($maxstatusset > 0) {
$opts = array();
for ($i = 0; $i <= $maxstatusset; $i++) {
$opts[$i] = attendance_get_setname($this->_customdata['att']->id, $i);
}
$mform->addElement('select', 'statusset', get_string('usestatusset', 'mod_attendance'), $opts);
} else {
$mform->addElement('hidden', 'statusset', 0);
$mform->setType('statusset', PARAM_INT);
}
$mform->addElement('editor', 'sdescription', get_string('description', 'attendance'), array('rows' => 1, 'columns' => 80),
array('maxfiles' => EDITOR_UNLIMITED_FILES, 'noclean' => true, 'context' => $modcontext));
$mform->setType('sdescription', PARAM_RAW);
if (!empty($pluginconfig->enablecalendar)) {
$mform->addElement('checkbox', 'calendarevent', '', get_string('calendarevent', 'attendance'));
$mform->addHelpButton('calendarevent', 'calendarevent', 'attendance');
if (isset($pluginconfig->calendarevent_default)) {
$mform->setDefault('calendarevent', $pluginconfig->calendarevent_default);
}
} else {
$mform->addElement('hidden', 'calendarevent', 0);
$mform->setType('calendarevent', PARAM_INT);
}
// If warnings allow selector for reporting.
if (!empty(get_config('attendance', 'enablewarnings'))) {
$mform->addElement('checkbox', 'absenteereport', '', get_string('includeabsentee', 'attendance'));
$mform->addHelpButton('absenteereport', 'includeabsentee', 'attendance');
if (isset($pluginconfig->absenteereport_default)) {
$mform->setDefault('absenteereport', $pluginconfig->absenteereport_default);
}
} else {
$mform->addElement('hidden', 'absenteereport', 1);
$mform->setType('absenteereport', PARAM_INT);
}
// For multiple sessions.
$mform->addElement('header', 'headeraddmultiplesessions', get_string('addmultiplesessions', 'attendance'));
if (!empty($pluginconfig->multisessionexpanded)) {
$mform->setExpanded('headeraddmultiplesessions');
}
$mform->addElement('checkbox', 'addmultiply', '', get_string('repeatasfollows', 'attendance'));
$mform->addHelpButton('addmultiply', 'createmultiplesessions', 'attendance');
$sdays = array();
if ($CFG->calendar_startwday === '0') { // Week start from sunday.
$sdays[] =& $mform->createElement('checkbox', 'Sun', '', get_string('sunday', 'calendar'));
}
$sdays[] =& $mform->createElement('checkbox', 'Mon', '', get_string('monday', 'calendar'));
$sdays[] =& $mform->createElement('checkbox', 'Tue', '', get_string('tuesday', 'calendar'));
$sdays[] =& $mform->createElement('checkbox', 'Wed', '', get_string('wednesday', 'calendar'));
$sdays[] =& $mform->createElement('checkbox', 'Thu', '', get_string('thursday', 'calendar'));
$sdays[] =& $mform->createElement('checkbox', 'Fri', '', get_string('friday', 'calendar'));
$sdays[] =& $mform->createElement('checkbox', 'Sat', '', get_string('saturday', 'calendar'));
if ($CFG->calendar_startwday !== '0') { // Week start from sunday.
$sdays[] =& $mform->createElement('checkbox', 'Sun', '', get_string('sunday', 'calendar'));
}
$mform->addGroup($sdays, 'sdays', get_string('repeaton', 'attendance'), array('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'), true);
$mform->disabledIf('sdays', 'addmultiply', 'notchecked');
$period = array(1 => 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36);
$periodgroup = array();
$periodgroup[] =& $mform->createElement('select', 'period', '', $period, false, true);
$periodgroup[] =& $mform->createElement('static', 'perioddesc', '', get_string('week', 'attendance'));
$mform->addGroup($periodgroup, 'periodgroup', get_string('repeatevery', 'attendance'), array(' '), false);
$mform->disabledIf('periodgroup', 'addmultiply', 'notchecked');
$mform->addElement('date_selector', 'sessionenddate', get_string('repeatuntil', 'attendance'));
$mform->disabledIf('sessionenddate', 'addmultiply', 'notchecked');
$mform->addElement('hidden', 'coursestartdate', $course->startdate);
$mform->setType('coursestartdate', PARAM_INT);
$mform->addElement('hidden', 'previoussessiondate', 0);
$mform->setType('previoussessiondate', PARAM_INT);
// Students can mark own attendance.
$studentscanmark = get_config('attendance', 'studentscanmark');
$mform->addElement('header', 'headerstudentmarking', get_string('studentmarking', 'attendance'), true);
if (!empty($pluginconfig->studentrecordingexpanded)) {
$mform->setExpanded('headerstudentmarking');
}
if (!empty($studentscanmark)) {
$mform->addElement('checkbox', 'studentscanmark', '', get_string('studentscanmark', 'attendance'));
$mform->addHelpButton('studentscanmark', 'studentscanmark', 'attendance');
} else {
$mform->addElement('hidden', 'studentscanmark', '0');
$mform->settype('studentscanmark', PARAM_INT);
}
$options = attendance_get_automarkoptions();
$mform->addElement('select', 'automark', get_string('automark', 'attendance'), $options);
$mform->setType('automark', PARAM_INT);
$mform->addHelpButton('automark', 'automark', 'attendance');
$mform->setDefault('automark', $this->_customdata['att']->automark);
if (!empty($studentscanmark)) {
$mgroup = array();
$mgroup[] = & $mform->createElement('text', 'studentpassword', get_string('studentpassword', 'attendance'));
$mform->disabledif('studentpassword', 'rotateqrcode', 'checked');
$mgroup[] = & $mform->createElement('checkbox', 'randompassword', '', get_string('randompassword', 'attendance'));
$mform->disabledif('randompassword', 'rotateqrcode', 'checked');
$mgroup[] = & $mform->createElement('checkbox', 'includeqrcode', '', get_string('includeqrcode', 'attendance'));
$mform->disabledif('includeqrcode', 'rotateqrcode', 'checked');
$mform->addGroup($mgroup, 'passwordgrp', get_string('passwordgrp', 'attendance'), array(' '), false);
$mform->setType('studentpassword', PARAM_TEXT);
$mform->addHelpButton('passwordgrp', 'passwordgrp', 'attendance');
$mform->addElement('checkbox', 'rotateqrcode', '', get_string('rotateqrcode', 'attendance'));
$mform->hideif('rotateqrcode', 'studentscanmark', 'notchecked');
$mform->hideif('passwordgrp', 'studentscanmark', 'notchecked');
$mform->hideif('studentpassword', 'randompassword', 'checked');
$mform->hideif('passwordgrp', 'automark', 'eq', ATTENDANCE_AUTOMARK_ALL);
$mform->addElement('checkbox', 'autoassignstatus', '', get_string('autoassignstatus', 'attendance'));
$mform->addHelpButton('autoassignstatus', 'autoassignstatus', 'attendance');
$mform->hideif('autoassignstatus', 'studentscanmark', 'notchecked');
if (isset($pluginconfig->autoassignstatus)) {
$mform->setDefault('autoassignstatus', $pluginconfig->autoassignstatus);
}
if (isset($pluginconfig->studentscanmark_default)) {
$mform->setDefault('studentscanmark', $pluginconfig->studentscanmark_default);
}
if (isset($pluginconfig->randompassword_default)) {
$mform->setDefault('randompassword', $pluginconfig->randompassword_default);
}
if (isset($pluginconfig->includeqrcode_default)) {
$mform->setDefault('includeqrcode', $pluginconfig->includeqrcode_default);
}
if (isset($pluginconfig->rotateqrcode_default)) {
$mform->setDefault('rotateqrcode', $pluginconfig->rotateqrcode_default);
}
if (isset($pluginconfig->automark_default)) {
$mform->setDefault('automark', $pluginconfig->automark_default);
}
}
$mgroup2 = array();
$mgroup2[] = & $mform->createElement('text', 'subnet', get_string('requiresubnet', 'attendance'));
if (empty(get_config('attendance', 'subnetactivitylevel'))) {
$mform->setDefault('subnet', get_config('attendance', 'subnet'));
} else {
$mform->setDefault('subnet', $this->_customdata['att']->subnet);
}
$mgroup2[] = & $mform->createElement('checkbox', 'usedefaultsubnet', get_string('usedefaultsubnet', 'attendance'));
$mform->setDefault('usedefaultsubnet', 1);
$mform->setType('subnet', PARAM_TEXT);
$mform->addGroup($mgroup2, 'subnetgrp', get_string('requiresubnet', 'attendance'), array(' '), false);
$mform->setAdvanced('subnetgrp');
$mform->addHelpButton('subnetgrp', 'requiresubnet', 'attendance');
$mform->hideif('subnet', 'usedefaultsubnet', 'checked');
$mgroup3 = array();
$options = attendance_get_sharedipoptions();
$mgroup3[] = & $mform->createElement('select', 'preventsharedip',
get_string('preventsharedip', 'attendance'), $options);
$mgroup3[] = & $mform->createElement('text', 'preventsharediptime',
get_string('preventsharediptime', 'attendance'), '', 'test');
$mform->addGroup($mgroup3, 'preventsharedgroup', get_string('preventsharedip', 'attendance'), array(' '), false);
$mform->addHelpButton('preventsharedgroup', 'preventsharedip', 'attendance');
$mform->setAdvanced('preventsharedgroup');
$mform->setType('preventsharedip', PARAM_INT);
$mform->setType('preventsharediptime', PARAM_INT);
if (isset($pluginconfig->preventsharedip)) {
$mform->setDefault('preventsharedip', $pluginconfig->preventsharedip);
}
if (isset($pluginconfig->preventsharediptime)) {
$mform->setDefault('preventsharediptime', $pluginconfig->preventsharediptime);
}
$this->add_action_buttons(true, get_string('add', 'attendance'));
}
/**
* Perform minimal validation on the settings form
* @param array $data
* @param array $files
*/
public function validation($data, $files) {
global $DB;
$errors = parent::validation($data, $files);
$sesstarttime = $data['sestime']['starthour'] * HOURSECS + $data['sestime']['startminute'] * MINSECS;
$sesendtime = $data['sestime']['endhour'] * HOURSECS + $data['sestime']['endminute'] * MINSECS;
if ($sesendtime < $sesstarttime) {
$errors['sestime'] = get_string('invalidsessionendtime', 'attendance');
}
if (!empty($data['addmultiply']) && $data['sessiondate'] != 0 && $data['sessionenddate'] != 0 &&
$data['sessionenddate'] < $data['sessiondate']) {
$errors['sessionenddate'] = get_string('invalidsessionenddate', 'attendance');
}
if ($data['sessiontype'] == mod_attendance_structure::SESSION_GROUP and empty($data['groups'])) {
$errors['groups'] = get_string('errorgroupsnotselected', 'attendance');
}
$addmulti = isset($data['addmultiply']) ? (int)$data['addmultiply'] : 0;
if (($addmulti != 0) && (!array_key_exists('sdays', $data) || empty($data['sdays']))) {
$data['sdays'] = array();
$errors['sdays'] = get_string('required', 'attendance');
}
if (isset($data['sdays'])) {
if (!$this->checkweekdays($data['sessiondate'], $data['sessionenddate'], $data['sdays']) ) {
$errors['sdays'] = get_string('checkweekdays', 'attendance');
}
}
if ($addmulti && ceil(($data['sessionenddate'] - $data['sessiondate']) / YEARSECS) > 1) {
$errors['sessionenddate'] = get_string('timeahead', 'attendance');
}
$sessstart = $data['sessiondate'] + $sesstarttime;
if ($sessstart < $data['coursestartdate'] && $sessstart != $data['previoussessiondate']) {
$errors['sessiondate'] = get_string('priorto', 'attendance',
userdate($data['coursestartdate'], get_string('strftimedmyhm', 'attendance')));
$this->_form->setConstant('previoussessiondate', $sessstart);
}
if (!empty($data['studentscanmark']) && $data['automark'] == ATTENDANCE_AUTOMARK_CLOSE) {
$cm = $this->_customdata['cm'];
// Check that the selected statusset has a status to use when unmarked.
$sql = 'SELECT id
FROM {attendance_statuses}
WHERE deleted = 0 AND (attendanceid = 0 or attendanceid = ?)
AND setnumber = ? AND setunmarked = 1';
$params = array($cm->instance, $data['statusset']);
if (!$DB->record_exists_sql($sql, $params)) {
$errors['automark'] = get_string('noabsentstatusset', 'attendance');
}
}
if (!empty($data['studentscanmark']) && !empty($data['preventsharedip']) &&
empty($data['preventsharediptime'])) {
$errors['preventsharedgroup'] = get_string('iptimemissing', 'attendance');
}
return $errors;
}
/**
* Check weekdays function.
* @param int $sessiondate
* @param int $sessionenddate
* @param int $sdays
* @return bool
*/
private function checkweekdays($sessiondate, $sessionenddate, $sdays) {
$found = false;
$daysofweek = array(0 => "Sun", 1 => "Mon", 2 => "Tue", 3 => "Wed", 4 => "Thu", 5 => "Fri", 6 => "Sat");
$start = new DateTime( date("Y-m-d", $sessiondate) );
$interval = new DateInterval('P1D');
$end = new DateTime( date("Y-m-d", $sessionenddate) );
$end->add( new DateInterval('P1D') );
$period = new DatePeriod($start, $interval, $end);
foreach ($period as $date) {
if (!$found) {
foreach ($sdays as $name => $value) {
$key = array_search($name, $daysofweek);
if ($date->format("w") == $key) {
$found = true;
break;
}
}
}
}
return $found;
}
}