class.ilChatroomBlock.php

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<?php
/* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once 'Modules/Chatroom/classes/class.ilChatroom.php';

class ilChatroomBlock
{
        private function getReadableAreas()
        {
                global $ilUser, $rbacsystem;

                $readable_rooms = array();

                $chatroom_objects = ilChatroom::getUntrashedChatReferences(array(
                        'last_activity' => strtotime('-5 days', time())
                ));
                foreach($chatroom_objects as $object)
                {
                        if(isset($readable_rooms[$object['obj_id']]))
                        {
                                continue;
                        }

                        if($rbacsystem->checkAccess('read', '', $object['ref_id']))
                        {
                                $room = ilChatroom::byObjectId($object['obj_id']);
                                if($room && !$room->isUserBanned($ilUser->getId()))
                                {
                                        $readable_rooms[$object['obj_id']] = array(
                                                'ref_id'       => $object['ref_id'],
                                                'obj_id'       => $object['obj_id'],
                                                'room_id'      => $room->getRoomId(),
                                                'title'        => $object['title'],
                                                'parent_title' => $object['parent_title']
                                        );
                                }
                        }
                }

                $title = array();
                foreach($readable_rooms as $k => $v)
                {
                        $title[$k] = strtolower($v['title']);
                }
                array_multisort($title, SORT_STRING, $readable_rooms);

                return $readable_rooms;
        }

        public function getRoomSelect()
        {
                global $lng, $ilUser;

                $readable = $this->getReadableAreas();
                $tpl      = new ilTemplate('tpl.chatroom_block_room_select.html', true, true, 'Modules/Chatroom');
                $tpl->setVariable('TXT_SELECT_ROOM', $lng->txt('chat_select_room'));
                foreach($readable as $room)
                {
                        $tpl->setCurrentBlock('select_room_row');
                        $tpl->setVariable('ROW_VALUE', $room['ref_id']);
                        $tpl->setVariable('ROW_CAPTION', sprintf($lng->txt('room_in_container'), $room['title'], $room['parent_title']));

                        if($ilUser->getPref('chatviewer_last_selected_room') == $room['ref_id'])
                                $tpl->setVariable('ROW_SELECTED', 'selected="selected"');

                        $tpl->parseCurrentBlock();
                }

                return $tpl->get();
        }

        public function getMessages(ilChatroom $room)
        {
                global $ilUser;

                include 'Modules/Chatroom/classes/class.ilChatroomUser.php';
                $messages = $room->getLastMessagesForChatViewer($room->getSetting('display_past_msgs'), new ilChatroomUser($ilUser, $room));

                $output_messages = array();

                foreach($messages as $msg)
                {
                        $output_messages[] = $msg;
                }

                return $output_messages;
        }
}