Check to make sure found resource is an array instead of a column flag.

Fixes fatal error when deleting a category.

resources/inc/class.resources_hooks.inc.php

@@ -152,12 +152,16 @@ class resources_hooks
 		$query = array('filter' => $args['cat_id']);
 		$bo = new resources_bo();
 		$bo->get_rows($query, $resources, $readonly);
+		
 		foreach($resources as $resource)
+		{
+			if(is_array($resource))
 			{
 				$resource['cat_id'] = $new_cat_id;
 				$bo->save($resource);
 			}
 		}
+	}
 
 	/**
 	 * populates $settings for the preferences