[-] BO : BugFix : #PSCFV-3554 : Class Category, Method calcLevelDepth: throw Exception

git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@16774 b9a71923-0436-4b27-9f14-aed3839534dd

classes/Category.php

@@ -365,7 +365,7 @@ class CategoryCore extends ObjectModel
 
 		$parent_category = new Category($this->id_parent);
 		if (!Validate::isLoadedObject($parent_category))
-			die('parent category does not exist');
+			throw new PrestaShopException('Parent category does not exist');
 		return $parent_category->level_depth + 1;
 	}