details about the new input parameter position for pwg.categories.add

include/ws_functions/pwg.categories.php

@@ -576,7 +576,7 @@ function ws_categories_add($params, &$service)
 
   global $conf;
 
-  if ($params["position"] != "") 
+  if (!empty($params['position']) and in_array($params['position'], array('first','last')))
   {
     //TODO make persistent with user prefs
     $conf['newcat_default_position'] = $params["position"];

ws.php

@@ -611,7 +611,7 @@ function ws_addDefaultMethods( $arr )
                                 'info'=>'public, private'),
         'commentable' =>  array('default'=>true,
                                 'type'=>WS_TYPE_BOOL),
-        'position' =>     array('default'=>null),
+        'position' =>     array('default'=>null, 'info'=>'first, last'),
         ),
       'Adds an album.',
       $ws_functions_root . 'pwg.categories.php',