joomla user id in condition list of ccv5

I apreciate i someone can help
i need insert a condition in ccv5 form that show only records of table that allow to one user
I did it statically with

<?php
 return array(
   "nif" =>"12",
  "nombre" =>"88"
 );
 ?>

But my purpose is do it dinamically with user id of joomla, but I don't know how can i get it from enviroment of joomla
regards

Hi teldrive,

Please see this FAQ

Bob

Hi Bob , thanks by reply, i am untrained in CCv5,

but I have tried with this in order to debug it

<?php
$user = & JFactory::getUser();
$login=$user->username;

print "-> $login  es el username   ";
print "-> $user   es el array    ";

 /*return array('nif' =>$user->name);*/

 return array('nif' =>"seden");
 ?>

the results are:
no value for $login
$user value = JUser

and list works because "seden· is constant, so can you help me, what am I missing?

Sorry Bob is working
is working, my failure was that I have to register as user to get it works, because from backend there is not registered users

here is the screen

Hi Teldrive,

You need to use this to get the user's id:

$user->get("id")

Regards,
Max