Filter ditto to only list items with description and longtitle field entries

I’d like to filter my ditto call to only show nodes with entries for description, longtitle and TV select option for "show in list".

How would I build a filter to detect that the description and longtitle contains data?

Did you try with a filter like:

&filter=`pagetitle,,1|longtitle,,1`

I never tried this so cant say that it will work. You could also do it int he TPL by using PHx to hide items wich dont match the criteria.

http://ditto.modxcms.com/tutorials/basic_filtering.html
http://wiki.modxcms.com/index.php/PHx

unfortunately it didn’t work