You have simple Behaviors that can alter values through java script in the browser and you have converters that converts a value at the server side, validators are ment for validation of a value that is converted by a convertor not for changing data.
On 10/13/08, Matthias Keller <[EMAIL PROTECTED]> wrote: > Timo Rantalaiho wrote: >> On Mon, 13 Oct 2008, Matthias Keller wrote: >> >>> Here's the scenario with two radios and a pulldown: >>> ( ) I don't need anything >>> ( ) I need: [ pulldown with options ] >>> >>> Now if "I need" is selected, everything works as expected, the pulldown >>> value gets stored to the model. >>> Now if 'I dont need anything' is selected, another value for the >>> pulldown needs to be stored in the model. Let's say a marker entry like >>> 'nothing'. I can't have 'nothing' directly in the pulldown as it would >>> make no sense (and the customer explicitly doesn't want that). So in the >>> validator I need to check the status of the radios and if the first >>> option is selected, set the pulldown model's value to my custom value, >>> ignoring any possible input value. >>> >> >> I think that you should do it with ajax and custom models >> instead of validators. It seems like a kludge or at least a >> strange side effect for a validator to do something like >> that. >> >> Best wishes, >> Timo >> > Hi Timo > > AJAX is not an option, as it is client side. > Another scenario would be: User has to enter some data which needs to be > stored in a certain way. For example a number needs leading zeros or > whatever, it would be good for a validator to a) check that the value is > a number and b) on the fly update the value with leading zeros as needed > - I guess a converter could do the job but I think that's overkill...? > A custom model also is not that easy, at least to my understanding as > the model values come from two different components...... > > Matt > > -- > [EMAIL PROTECTED] +41 44 268 83 98 > Ergon Informatik AG, Kleinstrasse 15, CH-8008 Zürich > http://www.ergon.ch > ______________________________________________________________ > e r g o n smart people - smart software > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
