chamilo-lms/main/mySpace/session.php

<?php
/* For licensing terms, see /license.txt */
/*
 * Sessions reporting
 * @package chamilo.reporting
 */
ob_start();
$nameTools= 'Sessions';
// name of the language file that needs to be included
$language_file = array ('registration', 'index', 'trad4all', 'tracking', 'admin');
$cidReset = true;

require_once '../inc/global.inc.php';
require_once api_get_path(LIBRARY_PATH).'export.lib.inc.php';

api_block_anonymous_users();

$this_section = SECTION_TRACKING;

api_block_anonymous_users();
$interbreadcrumb[] = array ("url" => "index.php", "name" => get_lang('MySpace'));
Display :: display_header($nameTools);

$export_csv = false;

if (isset($_GET['export']) && $_GET['export'] == 'csv') {
	$export_csv = true;
}

/*
	FUNCTION
*/

function count_sessions_coached() {
	global $nb_sessions;
	return $nb_sessions;
}

function sort_sessions($a, $b) {
	global $tracking_column;
	if ($a[$tracking_column] > $b[$tracking_column]) {
		return 1;
	} else {
		return -1;
	}
}

function rsort_sessions($a, $b) {
	global $tracking_column;
	if ($b[$tracking_column] > $a[$tracking_column]) {
		return 1;
	} else {
		return -1;
	}
}

/*	MAIN CODE	*/

if (isset($_GET['id_coach']) && $_GET['id_coach'] != '') {
	$id_coach = intval($_GET['id_coach']);
} else {
	$id_coach = $_user['user_id'];
}

if (api_is_drh() || api_is_session_admin() || api_is_platform_admin()) {

	$a_sessions = SessionManager::get_sessions_followed_by_drh(api_get_user_id());

	if (!api_is_session_admin()) {
		$menu_items[] = Display::url(Display::return_icon('stats.png', get_lang('MyStats'),'',ICON_SIZE_MEDIUM),api_get_path(WEB_CODE_PATH)."auth/my_progress.php" );
		$menu_items[] = Display::url(Display::return_icon('user.png', get_lang('Students'), array(), ICON_SIZE_MEDIUM), "index.php?view=drh_students&amp;display=yourstudents");
		$menu_items[] = Display::url(Display::return_icon('teacher.png', get_lang('Trainers'), array(), ICON_SIZE_MEDIUM), 'teachers.php');
		$menu_items[] = Display::url(Display::return_icon('course.png', get_lang('Courses'), array(), ICON_SIZE_MEDIUM), 'course.php');
		$menu_items[] = Display::url(Display::return_icon('session_na.png', get_lang('Sessions'), array(), ICON_SIZE_MEDIUM), '#');
	}

	echo '<div class="actions">';
	$nb_menu_items = count($menu_items);
	if ($nb_menu_items > 1) {
		foreach ($menu_items as $key => $item) {
			echo $item;
		}
	}
	if (count($a_sessions) > 0) {
		echo '<span style="float:right">';
		echo Display::url(Display::return_icon('printer.png', get_lang('Print'), array(), 32), 'javascript: void(0);', array('onclick'=>'javascript: window.print();'));
		echo Display::url(Display::return_icon('export_csv.png', get_lang('ExportAsCSV'), array(), 32), api_get_self().'?export=csv');
		echo '</span>';
	}
	echo '</div>';
	echo Display::page_header(get_lang('YourSessionsList'));

} else {
    $a_sessions = Tracking :: get_sessions_coached_by_user($id_coach);
}

$nb_sessions = count($a_sessions);

if ($export_csv) {
	$csv_content = array();
}

if ($nb_sessions > 0) {

	$table = new SortableTable('tracking', 'count_sessions_coached');
	$table->set_header(0, get_lang('Title'));
	$table->set_header(1, get_lang('Date'));
	$table->set_header(2, get_lang('NbCoursesPerSession'));
	$table->set_header(3, get_lang('Details'), false);

	$all_data = array();
	foreach ($a_sessions as $session) {
		$row = array();
		$row[] = $session['name'];

		if ($session['date_start'] != '0000-00-00' && $session['date_end'] != '0000-00-00') {
			$row[] = get_lang('From').' '. api_convert_and_format_date($session['date_start'], DATE_FORMAT_SHORT, date_default_timezone_get()).' '.get_lang('To').' '.api_convert_and_format_date($session['date_end'], DATE_FORMAT_SHORT, date_default_timezone_get());
		} else {
			$row[] = ' - ';
		}

		$row[] = count(Tracking::get_courses_list_from_session($session['id']));

		if ($export_csv) {
			$csv_content[] = $row;
		}

		if (isset($_GET['id_coach']) && $_GET['id_coach'] != '') {
			$row[] = '<a href="student.php?id_session='.$session['id'].'&id_coach='.intval($_GET['id_coach']).'"><img src="'.api_get_path(WEB_IMG_PATH).'2rightarrow.gif" border="0" /></a>';
		} else {
			$row[] = '<a href="course.php?id_session='.$session['id'].'"><img src="'.api_get_path(WEB_IMG_PATH).'2rightarrow.gif" border="0" /></a>';
		}
		$all_data[] = $row;
	}

	if (!isset($tracking_column)) {
		$tracking_column = 0;
	}

	if ($_GET['tracking_direction'] == 'DESC') {
		usort($all_data, 'rsort_sessions');
	} else {
		usort($all_data, 'sort_sessions');
	}

	if ($export_csv) {
		usort($csv_content, 'sort_sessions');
	}

	foreach ($all_data as $row) {
		$table -> addRow($row);
	}

	//$table -> setColAttributes(2, array('align' => 'center'));
	$table -> display();

	if ($export_csv) {
		ob_end_clean();
		Export :: export_table_csv($csv_content, 'reporting_student_list');
		exit;
	}
} else {
	echo get_lang('NoSession');
}
Display::display_footer();