first form will contain username and password. Validation framework will chceck if it is filled, if it has minimal length atc.
after it I must check if tehere is no other user who has this username, of course. So I thinking if to do it in validator layer (it is still validation of filled data) or on business class where it is saved into database, where db connection is open.
What do you think? I am tending to do it in validation layer, but I would like to know your view.
Thanks, Jiri
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