instance)) { error("Course module is incorrect"); } if (! $course = get_record("course", "id", $chat->course)) { error("Course is misconfigured"); } require_login($course->id); $isteacher = isteacher($course->id); $isteacheredit = isteacheredit($course->id); if (isguest() or (!$isteacher and !$chat->studentlogs)) { error("You can not view these chat reports"); } add_to_log($course->id, "chat", "report", "report.php?id=$cm->id", "$chat->id", "$cm->id"); /// Print the page header if ($course->category) { $navigation = "id\">$course->shortname ->"; } $strchats = get_string("modulenameplural", "chat"); $strchat = get_string("modulename", "chat"); $strchatreport = get_string("chatreport", "chat"); $strseesession = get_string("seesession", "chat"); $strdeletesession = get_string("deletesession", "chat"); /// Print a session if once has been specified if ($start and $end and !$confirmdelete) { // Show a full transcript print_header("$course->shortname: $chat->name: $strchatreport", "$course->fullname", "$navigation id\">$strchats -> id\">$chat->name -> id\">$strchatreport", "", "", true, "", navmenu($course, $cm)); if ($deletesession and $isteacheredit) { notice_yesno(get_string("deletesessionsure", "chat"), "report.php?id=$cm->id&deletesession=1&confirmdelete=1&start=$start&end=$end", "report.php?id=$cm->id"); } if (!$messages = get_records_select("chat_messages", "chatid = $chat->id AND timestamp >= '$start' AND timestamp <= '$end'", "timestamp ASC")) { print_heading(get_string("nomessages", "chat")); } else { echo "

".userdate($start)." --> ". userdate($end)."

"; print_simple_box_start("center"); foreach ($messages as $message) { // We are walking FORWARDS through messages $formatmessage = chat_format_message($message, $course->id); echo $formatmessage->html; } print_simple_box_end("center"); } if (!$deletesession or !$isteacheredit) { print_continue("report.php?id=$cm->id"); } print_footer($course); exit; } /// Print the Sessions display print_header("$course->shortname: $chat->name: $strchatreport", "$course->fullname", "$navigation id\">$strchats -> id\">$chat->name -> $strchatreport", "", "", true, "", navmenu($course, $cm)); /// Check to see if groups are being used here if ($groupmode = groupmode($course, $cm)) { // Groups are being used $currentgroup = setup_and_print_groups($course, $groupmode, "report.php?id=$cm->id"); } else { $currentgroup = false; } if ($currentgroup) { $groupselect = " AND groupid = '$currentgroup'"; $groupparam = "&group=$currentgroup"; } else { $groupselect = ""; $groupparam = ""; } print_heading($chat->name.": ".get_string("sessions", "chat")); /// Delete a session if one has been specified if ($deletesession and $isteacheredit and $confirmdelete and $start and $end) { delete_records_select("chat_messages", "chatid = $chat->id AND timestamp >= '$start' AND timestamp <= '$end' $groupselect"); $strdeleted = get_string("deleted"); notify("$strdeleted: ".userdate($start)." --> ". userdate($end)); unset($deletesession); } /// Get the messages if (empty($messages)) { /// May have already got them above if (!$messages = get_records_select("chat_messages", "chatid = '$chat->id' $groupselect", "timestamp DESC")) { print_heading(get_string("nomessages", "chat")); print_footer($course); exit; } } /// Show all the sessions $sessiongap = 5 * 60; // 5 minutes silence means a new session $sessionend = 0; $sessionstart = 0; $sessionusers = array(); $lasttime = 0; foreach ($messages as $message) { // We are walking BACKWARDS through the messages if (!$lasttime) { $lasttime = $message->timestamp; } if (!$sessionend) { $sessionend = $message->timestamp; } if (($lasttime - $message->timestamp) < $sessiongap) { // Same session if ($message->userid and !$message->system) { // Remember user and count messages if (empty($sessionusers[$message->userid])) { $sessionusers[$message->userid] = 1; } else { $sessionusers[$message->userid] ++; } } } else { $sessionstart = $lasttime; if ($sessionend - $sessionstart > 60 and count($sessionusers) > 1) { echo "

".userdate($sessionstart)." --> ". userdate($sessionend)."

"; print_simple_box_start("center"); arsort($sessionusers); foreach ($sessionusers as $sessionuser => $usermessagecount) { if ($user = get_record("user", "id", $sessionuser)) { print_user_picture($user->id, $course->id, $user->picture); echo " ".fullname($user, $isteacher); echo " ($usermessagecount)
"; } } echo "

"; echo "id&start=$sessionstart&end=$sessionend$groupparam\">$strseesession"; if ($isteacheredit) { echo "
id&start=$sessionstart&end=$sessionend&deletesession=1$groupparam\">$strdeletesession"; } echo "

"; print_simple_box_end(); } $sessionend = $message->timestamp; $sessionusers = array(); $sessionusers[$message->userid] = 1; } $lasttime = $message->timestamp; } /// Finish the page print_footer($course); ?>