[TYPO3-mvc] Example on how to create a model filter

[Mario Beiser]

Hi Jochen,

thanks for your answer. That's a great example. So I can watch out for some
best practices in querying my db :-)

At the moment I still got some problems with accessing post params of a
form.
How can I access the data in "the extbase way"?

Thanks for any hint.
Mario