From c1b2fe0dfd468ba3c576b7330d3617604a33afff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim=20D=C3=BCsterhus?= <timwolla@arcor.de>
Date: Sun, 15 Apr 2012 21:37:20 +0200
Subject: [PATCH] Adding lastActivity

---
 file/lib/page/ChatMessagePage.class.php | 12 +++++++++-
 file/lib/page/ChatPage.class.php        |  6 ++++-
 file/lib/util/ChatUtil.class.php        | 31 +++++++++++++++++++++++++
 3 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/file/lib/page/ChatMessagePage.class.php b/file/lib/page/ChatMessagePage.class.php
index 1a9f210..58b6ad4 100644
--- a/file/lib/page/ChatMessagePage.class.php
+++ b/file/lib/page/ChatMessagePage.class.php
@@ -32,6 +32,9 @@ public function readData() {
 		$this->users = $this->room->getUsers();
 	}
 	
+	/**
+	 * Fetches the new messages
+	 */
 	public function readMessages() {
 		$this->messages = chat\message\ChatMessageList::getMessagesSince($this->room, \wcf\util\ChatUtil::readUserData('lastSeen'));
 		
@@ -43,9 +46,16 @@ public function readMessages() {
 		$stmt = WCF::getDB()->prepareStatement($sql);
 		$stmt->execute();
 		$row = $stmt->fetchArray();
-		\wcf\util\ChatUtil::writeUserData(array('lastSeen' => $row['messageID']));
+		
+		\wcf\util\ChatUtil::writeUserData(array(
+			'lastSeen' => $row['messageID'],
+			'lastActivity' => TIME_NOW
+		));
 	}
 	
+	/**
+	 * Initializes the room databaseobject.
+	 */
 	public function readRoom() {
 		$this->roomID = \wcf\util\ChatUtil::readUserData('roomID');
 		
diff --git a/file/lib/page/ChatPage.class.php b/file/lib/page/ChatPage.class.php
index 632dbe5..f0d31f1 100644
--- a/file/lib/page/ChatPage.class.php
+++ b/file/lib/page/ChatPage.class.php
@@ -65,7 +65,11 @@ public function readData() {
 		
 		$this->readRoom();
 		$this->userData['color'] = \wcf\util\ChatUtil::readUserData('color');
-		\wcf\util\ChatUtil::writeUserData(array('roomID' => $this->room->roomID, 'away' => null));
+		\wcf\util\ChatUtil::writeUserData(array(
+			'roomID' => $this->room->roomID,
+			'away' => null,
+			'lastActivity' => TIME_NOW
+		));
 		
 		if (CHAT_DISPLAY_JOIN_LEAVE) {
 			$messageAction = new chat\message\ChatMessageAction(array(), 'create', array(
diff --git a/file/lib/util/ChatUtil.class.php b/file/lib/util/ChatUtil.class.php
index 6017aa5..a5fc525 100644
--- a/file/lib/util/ChatUtil.class.php
+++ b/file/lib/util/ChatUtil.class.php
@@ -38,6 +38,37 @@ final class ChatUtil {
 	 */
 	private static $packageID = null;
 	
+	/**
+	 * Fetches the userIDs of died users.
+	 * 
+	 * @return array
+	 */
+	public static function getDiedUsers() {
+		$packageID = \wcf\util\ChatUtil::getPackageID();
+		$sql = "SELECT
+				r.userID, r.fieldValue AS roomID
+			FROM
+				wcf".WCF_N."_user_storage r
+			LEFT JOIN
+				wcf".WCF_N."_user_storage a
+				ON		a.userID = r.userID 
+					AND	a.field = ? 
+					AND	a.packageID = ?
+			WHERE
+					r.field = ?
+				AND	r.packageID = ?
+				AND	a.fieldValue IS NOT NULL
+				AND	(
+						a.fieldValue < ?
+						OR a.fieldValue IS NULL
+				)";
+		$stmt = WCF::getDB()->prepareStatement($sql);
+		$stmt->execute(array('lastActivity', $packageID, 'roomID', $packageID, TIME_NOW - 30));
+		$users = array();
+		while ($users[] = $stmt->fetchArray());
+		
+		return $users;
+	}
 	/**
 	 * Returns the packageID of Tims Chat.
 	 */