Vihang,

> I would prefer an error is raised if the value is not provided...

Defining a validator IS_NOT_EMPTY() or IS_IN_DB(...) solves this
problem.

> I was wondering whether a default is essential with a notnull, since the 
> databases do
> not really need the default.

default='' doesn't hurt;-) I did not need a default either and at
first I regarded the default='' as an unsatisfactory solution, but it
solved my problem!?!


Annet
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