[MA] Error handling in MADateDescription componentClass

[Lukas Renggli]

> In other cases I use the MADescription>>addCondition, but in this  
> case I
> have no access to the three parts of Date (DD MM YYYY) ... 	
>
> ... error in reasoning?

This is difficult, as you try to validate a different object (a date)  
than the one you edit (the numbers DD, MM, and YYYY). I don't say its  
impossible, but if possible it will be a big hack.

You could try to intercept the validation from your editor/viewer or  
you take a different object (one with the tree numbers) that you edit  
and then convert it when pushing it into the model (for example by  
using special accessor methods).

Cheers,
Lukas

-- 
Lukas Renggli
http://www.lukas-renggli.ch