Re: [Gnumed-devel] Validation of data within widgits

[Karsten Hilbert]

> I'm somewhat perplexed by Karstens previous explanation of lack of on-screen 
> validation in widgits - eg date validation - the explanation that the back 
> does the validation.
The backend does the sort of validation you were asking for,
eg telling the user to get lost when he types "§=%/(W=$%33"
for a title -- IF that string happens to slip by the frontend
validation. Of course, the application *should* do data
validation but in some checks are just not done yet and the
backend shouldn't happily accept invalid data.

> Only allowing back-end validation is a huge time-waster. What happens when 
> the 
> data is saved and the user has to then go back to find the relevant screen 
> containing the text box with abcdefghi typed in instead of a date (or to be
Exactly this is what backend baseline validation is
preventing. The user simply cannot *store* garbage in a data
column. The database engine will throw back an error. Some
databases don't. That was my point.

> The practice of only using backend validation seems ridiculous.
Calm down already. No one ever said we only use backend validation.
How stupid you think we are ?

> No-ones programs work like that.
Obviously you haven't seen that much code.

> Each and every text box needs to be allocated the 
> character types allowed to be entered there.
And this only takes so many hours in coding, I know.

> Am I missing something fundamental here????????
Yes, you are missing having looked at the actual code in
question.

Karsten
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