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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/>.
/**
* 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(), $formparams);
if ($mform->is_submitted()) {
$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;
}
$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[] = get_string('remark', 'attendance', $text);
}
}
} 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) {
global $CFG;
if ($format === 'excel') {
require_once("$CFG->libdir/excellib.class.php");
$filename .= ".xls";
$workbook = new MoodleExcelWorkbook("-");
} else {
require_once("$CFG->libdir/odslib.class.php");
$filename .= ".ods";
$workbook = new MoodleODSWorkbook("-");
}
// Sending HTTP headers.
$workbook->send($filename);
// Creating the first worksheet.
$myxls = $workbook->add_worksheet('Attendances');
// Format types.
$formatbc = $workbook->add_format();
$formatbc->set_bold(1);
$myxls->write(0, 0, get_string('course'), $formatbc);
$myxls->write(0, 1, $data->course);
$myxls->write(1, 0, get_string('group'), $formatbc);
$myxls->write(1, 1, $data->group);
$i = 3;
$j = 0;
foreach ($data->tabhead as $cell) {
$myxls->write($i, $j++, $cell, $formatbc);
}
$i++;
$j = 0;
foreach ($data->table as $row) {
foreach ($row as $cell) {
$myxls->write($i, $j++, $cell);
}
$i++;
$j = 0;
}
$workbook->close();
}
function exporttocsv($data, $filename) {
$filename .= ".txt";
header("Content-Type: application/download\n");
header("Content-Disposition: attachment; filename=\"$filename\"");
header("Expires: 0");
header("Cache-Control: must-revalidate,post-check=0,pre-check=0");
header("Pragma: public");
echo get_string('course')."\t".$data->course."\n";
echo get_string('group')."\t".$data->group."\n\n";
echo implode("\t", $data->tabhead)."\n";
foreach ($data->table as $row) {
echo implode("\t", $row)."\n";
}
}