Another caveat is that the mapping needs to be two-way. Since type conversion errors happen in wicket the validation function in the middle layer needs to know to ignore properties with type-conversion errors.
-Igor > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Igor Vaynberg > Sent: Tuesday, October 11, 2005 1:17 PM > To: [email protected] > Subject: RE: [Wicket-develop] Just a thought... > > Yep, with imodel there is an infinite way to access any property. > > -Igor > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On > Behalf Of Eelco > > Hillenius > > Sent: Tuesday, October 11, 2005 1:10 PM > > To: [email protected] > > Subject: Re: [Wicket-develop] Just a thought... > > > > I see. The troubles start when you use > CompoundPropertyModels, right? > > > > Eelco > > > > On 10/11/05, Igor Vaynberg <[EMAIL PROTECTED]> wrote: > > > Havent actually worked with spring-mvc, just looked through > > the code. > > > My understanding is that spring uses property-paths to map > > components > > > to the model and those same paths as error keys. > > > > > > So if you have: > > > Class Name{getFirst(); getLast()} and class Person{getUsername(); > > > getName();} > > > > > > You will have three textfields mapped by "username", > "name.first", > > > "name.last" much like propertymodels in wicket, then you > > can validate > > > and return an errors object containing errors keyd off the > > property expressions. > > > > > > The difficulty with wicket is that we have a generic > model for the > > > components so there is no easy 1-1 mapping. > > > > > > -Igor > > > > > > > > > > > > > -----Original Message----- > > > > From: [EMAIL PROTECTED] > > > > [mailto:[EMAIL PROTECTED] On > Behalf Of > > > > Eelco Hillenius > > > > Sent: Tuesday, October 11, 2005 12:58 PM > > > > To: [email protected] > > > > Subject: Re: [Wicket-develop] Just a thought... > > > > > > > > So you need to establish some kind of relation between > > the business > > > > and web tiers. As the web tier uses the business tier, > > the web tier > > > > should be responsible for registering its components as e.g. > > > > observers (using some generic interface) for these messages. At > > > > least, that's how I would do it. What does Spring say > about this? > > > > > > > > Eelco > > > > > > > > On 10/11/05, Igor Vaynberg <[EMAIL PROTECTED]> wrote: > > > > > Setting the messages works great. That's not the problem > > > > though, the > > > > > problem is how to map the messages from middle layer > > validation to > > > > > wicket components. Ie, if my middle layer returns an > error with > > > > > key > > > > > entity.field1.field2 how do I easily map that on to the > > > > > appropriate textbox in the wicket form so I can call > > the message func on it. > > > > > > > > > > -Igor > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > From: [EMAIL PROTECTED] > > > > > > [mailto:[EMAIL PROTECTED] > > On Behalf Of > > > > > > Eelco Hillenius > > > > > > Sent: Tuesday, October 11, 2005 12:42 PM > > > > > > To: [email protected] > > > > > > Subject: Re: [Wicket-develop] Just a thought... > > > > > > > > > > > > You can set the messages for Wicket as-is. So if you have > > > > > > translated/ localized messages you want to expose, just do. > > > > > > No need to make things harder than that. > > > > > > > > > > > > Eelco > > > > > > > > > > > > > > > > > > On 10/11/05, Igor Vaynberg <[EMAIL PROTECTED]> wrote: > > > > > > > I think it solves the usecase of validation done in the > > > > > > middle layer > > > > > > > instead of using wicket's validators. The problems are: > > > > how do you > > > > > > > aggregate validation messages from your > validation, and how > > > > > > do you map > > > > > > > those messsages back onto wicket components. > > > > > > > > > > > > > > -Igor > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > From: [EMAIL PROTECTED] > > > > > > > > [mailto:[EMAIL PROTECTED] > > > > On Behalf Of > > > > > > > > Eelco Hillenius > > > > > > > > Sent: Tuesday, October 11, 2005 11:56 AM > > > > > > > > To: [email protected] > > > > > > > > Subject: Re: [Wicket-develop] Just a thought... > > > > > > > > > > > > > > > > It would be interesting to see what you did, when you > > > > > > solved it, and > > > > > > > > look at what kind of use cases it can solve. Keep up > > > > informed! > > > > > > > > :) > > > > > > > > > > > > > > > > Eelco > > > > > > > > > > > > > > > > On 10/11/05, Phil Kulak <[EMAIL PROTECTED]> wrote: > > > > > > > > > It's definitely a syntactic sugar kind of > > thing. I've got > > > > > > > > > a > > > > > > > > form right > > > > > > > > > now with many text boxes that represent complex user > > > > > > types and it > > > > > > > > > seems tedious to do all that validation and conversion > > > > > > after the > > > > > > > > > submit, or to override updateModel() on every > component. > > > > > > > > > > > > > > > > > > I never thought about doing it as a model though. I > > > > > > think I'm just > > > > > > > > > going to do that so there's no need to petition > > for it to > > > > > > > > be part of > > > > > > > > > the core. > > > > > > > > > > > > > > > > > > On 10/11/05, Eelco Hillenius > > > > <[EMAIL PROTECTED]> wrote: > > > > > > > > > > What actual use cases are you thinking of > > that can't be > > > > > > > > done by forms? > > > > > > > > > > Your idea could be implemented as a special > model. I'm > > > > > > > > not sure what > > > > > > > > > > the advantage over the normal form processing > > is though. > > > > > > > > > > > > > > > > > > > > Eelco > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On 10/11/05, Phil Kulak <[EMAIL PROTECTED]> wrote: > > > > > > > > > > > What do you guys think about something like > > this: you > > > > > > > > have a model > > > > > > > > > > > object with a bunch of setters that take > Strings and > > > > > > > > ints and so > > > > > > > > > > > forth, and getters that return complex user > > types. In > > > > > > > > the setters > > > > > > > > > > > validation and conversion takes place, with > > a special > > > > > > > > > > > exception thrown on failure, the message of which > > > > > > is picked up > > > > > > > > > > > by > > > > > > > > Wicket and > > > > > > > > > > > set on the component. 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