Index: branches/5.1.x/core/install/upgrades.php
===================================================================
diff -u -r12127 -r12657
--- branches/5.1.x/core/install/upgrades.php	(.../upgrades.php)	(revision 12127)
+++ branches/5.1.x/core/install/upgrades.php	(.../upgrades.php)	(revision 12657)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: upgrades.php 11892 2009-07-01 08:35:06Z alex $
+* @version	$Id: upgrades.php 12657 2009-10-04 20:07:31Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -11,6 +11,9 @@
 * or other free or open source software licenses.
 * See http://www.in-portal.net/license/ for copyright notices and details.
 */
+
+	defined('FULL_PATH') or die('restricted access!');
+
 	$upgrade_class = 'CoreUpgrades';
 
 	/**
@@ -876,10 +879,13 @@
 					$skin->SetDBField('Options', serialize($skin_options));
 					$skin->Update();
 
-					$skin_eh =& $this->Application->recallObject('skin_EventHandler');
-					/* @var $skin_eh SkinEventHandler */
+					$skin_helper =& $this->Application->recallObject('SkinHelper');
+					/* @var $skin_helper SkinHelper */
 
-					$skin_eh->Compile($skin);
+					$skin_file = $skin_helper->getSkinPath();
+					if (file_exists($skin_file)) {
+						unlink($skin_file);
+					}
 				}
 			}
 		}
@@ -1142,4 +1148,51 @@
 				$this->Conn->Query($sql);
 			}
 		}
+
+		/**
+		 * Update to 5.0.1
+		 *
+		 * @param string $mode when called mode {before, after)
+		 */
+		function Upgrade_5_0_1($mode)
+		{
+			if ($mode == 'after') {
+				// delete old events
+				$events_to_delete = Array ('CATEGORY.MODIFY', 'CATEGORY.DELETE');
+
+				$sql = 'SELECT EventId
+						FROM ' . TABLE_PREFIX . 'Events
+						WHERE Event IN ("' . implode('","', $events_to_delete) . '")';
+				$event_ids = $this->Conn->GetCol($sql);
+
+				if ($event_ids) {
+					$this->_deleteEvents($event_ids);
+
+					$sql = 'DELETE FROM ' . TABLE_PREFIX . 'Phrase
+							WHERE Phrase IN ("la_event_category.modify", "la_event_category.delete")';
+					$this->Conn->Query($sql);
+				}
+
+				// partially delete events
+				$sql = 'SELECT EventId
+						FROM ' . TABLE_PREFIX . 'Events
+						WHERE (Event IN ("CATEGORY.APPROVE", "CATEGORY.DENY")) AND (Type = ' . EVENT_TYPE_ADMIN . ')';
+				$event_ids = $this->Conn->GetCol($sql);
+
+				if ($event_ids) {
+					$this->_deleteEvents($event_ids);
+				}
+			}
+		}
+
+		function _deleteEvents($ids)
+		{
+			$sql = 'DELETE FROM ' . TABLE_PREFIX . 'EmailMessage
+					WHERE EventId IN (' . implode(',', $ids) . ')';
+			$this->Conn->Query($sql);
+
+			$sql = 'DELETE FROM ' . TABLE_PREFIX . 'Events
+					WHERE EventId IN (' . implode(',', $ids) . ')';
+			$this->Conn->Query($sql);
+		}
 	}
\ No newline at end of file