Index: trunk/core/units/categories/categories_tag_processor.php
===================================================================
diff -u -N -r5036 -r5164
--- trunk/core/units/categories/categories_tag_processor.php	(.../categories_tag_processor.php)	(revision 5036)
+++ trunk/core/units/categories/categories_tag_processor.php	(.../categories_tag_processor.php)	(revision 5164)
@@ -321,6 +321,54 @@
 		}
 		return $parent_id;
 	}
+	
+	function InitCacheUpdater($params)
+	{
+		safeDefine('CACHE_PERM_CHUNK_SIZE', 30);
+
+		$force = $this->Application->GetVar('force');
+		$continue = $this->Application->GetVar('continue');
+		
+		$updater =& $this->Application->recallObject('kPermCacheUpdater', null, Array('continue' => $continue));
+		
+		$ret = false; // don't ask for update
+		if ($continue !== false) {
+			if ($continue == 1) {
+				if ($this->Application->GetVar('ajax')) {
+					// call from AJAX request => returns percent
+					$needs_more = true;
+					while ($needs_more && $updater->iteration < CACHE_PERM_CHUNK_SIZE) {
+						// until proceeeded in this step category count exceeds category per step limit
+						$needs_more = $updater->DoTheJob();
+					}
+					
+					if ($needs_more) {
+						// still some categories are left for next step
+						$updater->setData();
+					}
+					else {
+						$updater->clearData();
+						$this->Application->StoreVar('PermCache_UpdateRequired', 0);
+						$this->Application->Redirect($params['destination_template']);
+					}
+					
+					$ret = $updater->getDonePercent();
+				}
+			}
+			else {
+				// user selected "No" in perm cache update dialog
+				$updater->clearData();
+				$this->Application->Redirect($params['destination_template']);
+			}
+			
+		}
+		elseif (!$force && ($updater->totalCats > CACHE_PERM_CHUNK_SIZE)) {
+			// ask before doing anything
+			$updater->setData();
+			$ret = true;
+		}
+		return $ret;
+	}
 }