mod/chat/gui_basic/index.php

   1 <?php  // $Id$
   2
   3     require_once('../../../config.php');
   4     require_once('../lib.php');
   5
   6     $id      = required_param('id', PARAM_INT);
   7     $groupid = optional_param('groupid', 0, PARAM_INT);  // only for teachers
   8     $message = optional_param('message', '', PARAM_CLEAN);
   9     $refresh = optional_param('refresh', '', PARAM_RAW); // force refresh
  10     $last    = optional_param('last', 0, PARAM_INT);     // last time refresh or sending
  11     $newonly = optional_param('newonly', 0, PARAM_BOOL); // show only new messages
  12
  13     if (!$chat = get_record('chat', 'id', $id)) {
  14         error('Could not find that chat room!');
  15     }
  16
  17     if (!$course = get_record('course', 'id', $chat->course)) {
  18         error('Could not find the course this belongs to!');
  19     }
  20
  21     if (!$cm = get_coursemodule_from_instance('chat', $chat->id, $course->id)) {
  22         error('Course Module ID was incorrect');
  23     }
  24
  25     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  26     require_login($course->id, false, $cm);
  27     require_capability('mod/chat:chat',$context);
  28
  29 /// Check to see if groups are being used here
  30      if ($groupmode = groupmode($course, $cm)) {   // Groups are being used
  31         if ($groupid = get_and_set_current_group($course, $groupmode, $groupid)) {
  32             if (!$group = get_record('groups', 'id', $groupid)) {
  33                 error("That group (id $groupid) doesn't exist!");
  34             }
  35             $groupname = ': '.$group->name;
  36         } else {
  37             $groupname = ': '.get_string('allparticipants');
  38         }
  39     } else {
  40         $groupid = 0;
  41         $groupname = '';
  42     }
  43
  44     $strchat  = get_string('modulename', 'chat'); // must be before current_language() in chat_login_user() to force course language!!!
  45     $strchats = get_string('modulenameplural', 'chat');
  46     $stridle  = get_String('idle', 'chat');
  47     if (!$chat_sid = chat_login_user($chat->id, 'basic', $groupid, $course)) {
  48         error('Could not log in to chat room!!');
  49     }
  50
  51     if (!$chatusers = chat_get_users($chat->id, $groupid)) {
  52         error(get_string('errornousers', 'chat'));
  53     }
  54
  55     set_field('chat_users', 'lastping', time(), 'sid', $chat_sid);
  56
  57     if (!isset($SESSION->chatprefs)) {
  58         $SESSION->chatprefs = array();
  59     }
  60     if (!isset($SESSION->chatprefs[$chat->id])) {
  61         $SESSION->chatprefs[$chat->id] = array();
  62         $SESSION->chatprefs[$chat->id]['chatentered'] = time();
  63     }
  64     $chatentered = $SESSION->chatprefs[$chat->id]['chatentered'];
  65
  66     $refreshedmessage = '';
  67
  68     if (!empty($refresh) and data_submitted()) {
  69         $refreshedmessage = $message;
  70
  71         chat_delete_old_users();
  72
  73     } else if (empty($refresh) and data_submitted() and confirm_sesskey()) {
  74
  75         if ($message!='') {
  76             $newmessage = new object();
  77             $newmessage->chatid = $chat->id;
  78             $newmessage->userid = $USER->id;
  79             $newmessage->groupid = $groupid;
  80             $newmessage->systrem = 0;
  81             $newmessage->message = $message;
  82             $newmessage->timestamp = time();
  83             if (!insert_record('chat_messages', $newmessage)) {
  84                 error('Could not insert a chat message!');
  85             }
  86
  87             set_field('chat_users', 'lastmessageping', time(), 'sid', $chat_sid);
  88
  89             add_to_log($course->id, 'chat', 'talk', "view.php?id=$cm->id", $chat->id, $cm->id);
  90         }
  91
  92         chat_delete_old_users();
  93
  94         redirect('index.php?id='.$id.'&amp;newonly='.$newonly.'&amp;last='.$last);
  95     }
  96
  97
  98     print_header("$strchat: $course->shortname: ".format_string($chat->name,true)."$groupname", '', '', 'message');
  99
 100     echo '<div id="mod-chat-gui_basic">';
 101     echo '<h1>'.get_string('participants').'</h1>';
 102     echo '<div id="participants"><ul>';
 103     foreach($chatusers as $chu) {
 104         echo '<li>';
 105         print_user_picture($chu->id, $course->id, $chu->picture, 24, false, false, '', false);
 106         echo '<div class="userinfo">';
 107         echo fullname($chu).' ';
 108         if ($idle = time() - $chu->lastmessageping) {
 109             echo '<span class="idle">'.$stridle.' '.format_time($idle).'</span>';
 110         } else {
 111             echo '<span class="idle" />';
 112         }
 113         echo '</div>';
 114         echo '</li>';
 115     }
 116     echo '</ul></div>';
 117     echo '<div id="send">';
 118     echo '<form id="editing" method="post" action="index.php">';
 119
 120     $usehtmleditor = can_use_html_editor();
 121     echo '<h1><label for="message">'.get_string('sendmessage', 'message').'</label></h1>';
 122     echo '<div>';
 123     echo '<input type="text" id="message" name="message" value="'.s($refreshedmessage, true).'" size="60" />';
 124     echo '</div><div>';
 125     echo '<input type="hidden" name="id" value="'.$id.'" />';
 126     echo '<input type="hidden" name="groupid" value="'.$groupid.'" />';
 127     echo '<input type="hidden" name="last" value="'.time().'" />';
 128     echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';
 129     echo '<input type="submit" value="'.get_string('submit').'" />&nbsp;';
 130     echo '<input type="submit" name="refresh" value="'.get_string('refresh').'" />';
 131     echo '<input type="checkbox" name="newonly" id="newonly" '.($newonly?'checked="checked" ':'').'/><label for="newonly">'.get_string('newonlymsg', 'message').'</label>';
 132     echo '</div>';
 133     echo '</form>';
 134     echo '</div>';
 135
 136     echo '<div id="messages">';
 137     echo '<h1>'.get_string('messages', 'chat').'</h1>';
 138
 139     $allmessages = array();
 140     $options = new object();
 141     $options->para = false;
 142     $options->newlines = true;
 143
 144     if ($newonly) {
 145         $lastsql = "AND timestamp > $last";
 146     } else {
 147         $lastsql = "";
 148     }
 149
 150     $groupselect = $groupid ? "AND (groupid='$groupid' OR groupid='0')" : "";
 151     $messages = get_records_select("chat_messages",
 152                         "chatid = '$chat->id' AND timestamp > $chatentered $lastsql $groupselect",
 153                         "timestamp DESC");
 154
 155     if ($messages) {
 156         foreach ($messages as $message) {
 157             $allmessages[] = chat_format_message($message, $course->id, $USER);
 158         }
 159     }
 160
 161     if (empty($allmessages)) {
 162         echo get_string('nomessagesfound', 'message');
 163     } else {
 164         foreach ($allmessages as $message) {
 165             echo $message->basic;
 166         }
 167     }
 168
 169     echo '</div></div>';
 170
 171     print_footer('none');
 172
 173
 174
 175 ?>