[TYPO3-mvc] looking for fluid viewhelper rendering barcodeas image

[Frank Gerards]

Hi list,

quick question: What would be the easiest way to do a filtered list in
extbase / fluid ?
Put the filter criteria in the list-item model but don't persist them ? 
Do a helper class 
Do a completely new model and new controller and insert the filter-box
as a separate plugin ?

Thx 4 info,
frank