join_collab_session.php

<?php

// This file is part of the Moodle block "EJSApp Collab Session"
//
// EJSApp Collab Session 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.
//
// EJSApp Collab Session 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.
//
// The GNU General Public License is available on <http://www.gnu.org/licenses/>
//
// EJSApp Collab Session has been developed by:
//  - Luis de la Torre (1): ldelatorre@dia.uned.es
//	- Ruben Heradio (1): rheradio@issi.uned.es
//  - Carlos Jara (2): carlos.jara@ua.es
//
//  (1): Computer Science and Automatic Control, Spanish Open University (UNED),
//       Madrid, Spain
//  (2): Physics, Systems Engineering and Signal Theory Department, University
//       of Alicante, Spain


/**
 * Page menu for users to accept an invitation to a collaborative session when they have been invited to one at least.
 *
 * @package    block
 * @subpackage ejsapp_collab_session
 * @copyright  2012 Luis de la Torre, Ruben Heradio and Carlos Jara
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
 
require_once('../../config.php');
require_login();

global $CFG, $DB, $OUTPUT;

require_once('manage_collab_db.php');

$page_caller = get_string('navBarNonMasterUser', 'block_ejsapp_collab_session');
require('init_page.php');

if (is_the_user_participating_in_any_session()) {
	echo $OUTPUT->heading(get_string('cantJoinSessionErr1', 'block_ejsapp_collab_session'));
} elseif ( !has_the_user_been_invited_to_any_session() ) {
	echo $OUTPUT->heading(get_string('cantJoinSessionErr2', 'block_ejsapp_collab_session'));
} else {
	echo $OUTPUT->heading(get_string('selectInvitation', 'block_ejsapp_collab_session'));
	$my_invitations = get_sessions_where_i_am_invited();
    $view_url = $CFG->wwwroot."/mod/ejsapp/view.php";
    echo html_writer::start_tag('form', array('action'=>$view_url, 'method'=>'get'));
	$i = 1;
	foreach ($my_invitations as $master_user=>$ejsapp) {
		$ejsapp_name = get_ejsapp_name($master_user);
		$session = get_collaborative_session_id($master_user);
		if ($i == 1) {
            echo html_writer::nonempty_tag('input checked', get_user_name($master_user) . get_string('invitationMsg1', 'block_ejsapp_collab_session')
                . "$ejsapp_name", array('type'=>'radio', 'name'=>'colsession', 'value'=>$session));
            echo html_writer::tag('br', '');
		} else {
            echo html_writer::nonempty_tag('input', get_user_name($master_user) . get_string('invitationMsg1', 'block_ejsapp_collab_session')
                . "$ejsapp_name", array('type'=>'radio', 'name'=>'colsession', 'value'=>$session));
            echo html_writer::tag('br', '');
		}
		$i++;
	}

    echo html_writer::tag('br', '');
    echo html_writer::empty_tag('input', array('type'=>'submit', 'value'=> get_string('acceptInvitation', 'block_ejsapp_collab_session')));
    echo html_writer::end_tag('form');
} // if (is_the_user_participating_in_any_session())

echo $OUTPUT->footer();