<?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/>.

/**

* Export attendance sessions

*

* @package mod_attendance

* @copyright 2011 Artem Andreev <andreev.artem@gmail.com>

* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

*/

require_once(dirname(__FILE__).'/../../config.php');

require_once(dirname(__FILE__).'/locallib.php');

require_once(dirname(__FILE__).'/export_form.php');

require_once(dirname(__FILE__).'/renderables.php');

require_once(dirname(__FILE__).'/renderhelpers.php');

$id = required_param('id', PARAM_INT);

$cm = get_coursemodule_from_id('attendance', $id, 0, false, MUST_EXIST);

$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);

$att = $DB->get_record('attendance', array('id' => $cm->instance), '*', MUST_EXIST);

require_login($course, true, $cm);

$att = new attendance($att, $cm, $course, $PAGE->context);

$att->perm->require_export_capability();

$PAGE->set_url($att->url_export());

$PAGE->set_title($course->shortname. ": ".$att->name);

$PAGE->set_heading($course->fullname);

$PAGE->set_cacheable(true);

$PAGE->set_button($OUTPUT->update_module_button($cm->id, 'attendance'));

$PAGE->navbar->add(get_string('export', 'attendance'));

$formparams = array('course' => $course, 'cm' => $cm, 'modcontext' => $PAGE->context);

$mform = new mod_attendance_export_form($att->url_export(), $formparams);

if ($formdata = $mform->get_data()) {

$pageparams = new att_page_with_filter_controls();

$pageparams->init($cm);

$pageparams->page = 0;

$pageparams->group = $formdata->group;

$pageparams->set_current_sesstype($formdata->group ? $formdata->group : att_page_with_filter_controls::SESSTYPE_ALL);

if (isset($formdata->includeallsessions)) {

if (isset($formdata->includenottaken)) {

$pageparams->view = ATT_VIEW_ALL;

} else {

$pageparams->view = ATT_VIEW_ALLPAST;

$pageparams->curdate = time();

}

$pageparams->init_start_end_date();

} else {

$pageparams->startdate = $formdata->sessionstartdate;

$pageparams->enddate = $formdata->sessionenddate;

}

if ($formdata->selectedusers) {

$pageparams->userids = $formdata->users;

}

$att->pageparams = $pageparams;

$reportdata = new attendance_report_data($att);

if ($reportdata->users) {

$filename = clean_filename($course->shortname.'_Attendances_'.userdate(time(), '%Y%m%d-%H%M'));

$group = $formdata->group ? $reportdata->groups[$formdata->group] : 0;

$data = new stdClass;

$data->tabhead = array();

$data->course = $att->course->fullname;

$data->group = $group ? $group->name : get_string('allparticipants');

if (isset($formdata->ident['id'])) {

$data->tabhead[] = get_string('studentid', 'attendance');

}

if (isset($formdata->ident['uname'])) {

$data->tabhead[] = get_string('username');

}

$optional = array('idnumber', 'institution', 'department');

foreach ($optional as $opt) {

if (isset($formdata->ident[$opt])) {

$data->tabhead[] = get_string($opt);

}

}

$data->tabhead[] = get_string('lastname');

$data->tabhead[] = get_string('firstname');

$groupmode = groups_get_activity_groupmode($cm, $course);

if (!empty($groupmode)) {

$data->tabhead[] = get_string('groups');

}

if (count($reportdata->sessions) > 0) {

foreach ($reportdata->sessions as $sess) {

$text = userdate($sess->sessdate, get_string('strftimedmyhm', 'attendance'));

$text .= ' ';

$text .= $sess->groupid ? $reportdata->groups[$sess->groupid]->name : get_string('commonsession', 'attendance');

$data->tabhead[] = $text;

if (isset($formdata->includeremarks)) {

$data->tabhead[] = ''; // Space for the remarks.

}

}

} else {

print_error('sessionsnotfound', 'attendance', $att->url_manage());

}

if ($reportdata->gradable) {

$data->tabhead[] = get_string('grade');

$data->tabhead[] = get_string('percentage', 'attendance');

}

$i = 0;

$data->table = array();

foreach ($reportdata->users as $user) {

if (isset($formdata->ident['id'])) {

$data->table[$i][] = $user->id;

}

if (isset($formdata->ident['uname'])) {

$data->table[$i][] = $user->username;

}

$optional_row = array('idnumber', 'institution', 'department');

foreach ($optional_row as $opt) {

if (isset($formdata->ident[$opt])) {

$data->table[$i][] = $user->$opt;

}

}

$data->table[$i][] = $user->lastname;

$data->table[$i][] = $user->firstname;

if (!empty($groupmode)) {

$grouptext = '';

$groupsraw = groups_get_all_groups($course->id, $user->id, 0, 'g.name');

$groups = array();

foreach ($groupsraw as $group) {

$groups[] = $group->name;;

}

$data->table[$i][] = implode(', ', $groups);

}

$cellsgenerator = new user_sessions_cells_text_generator($reportdata, $user);

$data->table[$i] = array_merge($data->table[$i], $cellsgenerator->get_cells(isset($formdata->includeremarks)));

if ($reportdata->gradable) {

$data->table[$i][] = format_float($reportdata->grades[$user->id]).' / '.

format_float($reportdata->maxgrades[$user->id]);

if ($reportdata->maxgrades[$user->id]) {

$percent = $reportdata->grades[$user->id] * 100.0 / $reportdata->maxgrades[$user->id];

} else {

$percent = 0.0;

}

$data->table[$i][] = $percent;

}

$i++;

}

if ($formdata->format === 'text') {

exporttocsv($data, $filename);

} else {

exporttotableed($data, $filename, $formdata->format);

}

exit;

} else {

print_error('studentsnotfound', 'attendance', $att->url_manage());

}

}

$output = $PAGE->get_renderer('mod_attendance');

$tabs = new attendance_tabs($att, attendance_tabs::TAB_EXPORT);

echo $output->header();

echo $output->heading(get_string('attendanceforthecourse', 'attendance').' :: ' .$course->fullname);

echo $output->render($tabs);

$mform->display();

echo $OUTPUT->footer();

function exporttotableed($data, $filename, $format) {

}

function exporttocsv($data, $filename) {

}