[TYPO3-mvc] set validation rules at runtime

[Thomas Mammitzsch]

hi list,

i'm curious if i can set validation rules for model properties at 
runtime and not by staticly defining them in the phpdoc for the object 
property. Where would i do that? In the Controller?

Use-Case: i display a form, which is dynamicly built by the backend user 
(similar to powermail). The backend user should also decide if a certain 
field is mandatory or not and what it should be validated against. So 
defining validation in the model won't work.

regards, Thomas