Attribute filter with files

Monday 21 February 2011 1:19:19 am

Hey,

Im trying to fetch the latest node that HAS a file attached to it but can't seem to make it work:

{def $item = fetch('content',
                    'tree',
                    hash( 'parent_node_id', 60,
                        'limit', 1,
                        'class_filter_type', 'include',
                        'class_filter_array', array( 'news' ),
                        'attribute_filter', array('and',
                            array( 'news/podcasturl', '!=', null())
                        )
                   )
)}

Iv tried to look through SQL debug and it doesnt even look like the query is performed :/
Why don't the null() operator work? i tried false, and '' also with no luck...