###USER:uid###
Return the uid number of the user connected.
If the user is not logged in,it  returns 0.

###REQUEST:var###
var = variable passeb by POST or GET

Apply filter based on usergroup

use "overwrite" tag if you want to avoid the previous "where" otherwise will add an "and" condition

<records>
   <where>
       <sql>tt_news.deleted=0 and tt_news.hidden=0 and tt_news.sys_language_uid=0</sql>
       <overwrite>1</overwrite>
       <usergroup>276</usergroup>
   </where>
<records>