Re: [Springframework-developer] webflow: FormAction question

[Steven D. <ste...@gm...>]

Keith,

Thanks for the feedback an my apologies for not posting on the user
list. There's two things that aren't clear to me:

1) is setupForm on FormAction called only once and if so where and why
only there?

2) how can I validate every page/form separately saying this or that
is missing? Every form submit uses the same validator, how can it
validate only the properties related to the form?

Thanks

Steven

On Apr 2, 2005 8:11 PM, Keith Donald <ke...@in...> wrote:
> Hey Steven,
> 
> Be sure to use the 'users' list or forum for questions like this next time,
> so more users will see it.
> 
> You can use one FormAction to do this, yep.  Erwin will be checking in a
> wizard sample shortly (potentially this evening), so I'll just sum up what
> the sample will illustrate:
> 
> - The FormAction already has a 'bindAndValidate' method, that does what you
> want on each intermediate page submit.  So you can have that method called
> on each submit by using a bindAndValidate<X> action state, where <X>
> describes what it is you are binding and validating.
> 
> For example:
> 
> <action-state id="bindAndValidatePageFoo">
>     <action id="myFormAction">
>         <property name="executeMethodName" value="bindAndValidate"/>
>     </action>
>     <transition on="error" to="viewPageFoo"/>
>     <transition on="success" to="viewPageBar"/>
> </action-state>
> 
> <action-state id="bindAndValidatePageBar">
>     <action id="myFormAction">
>         <property name="executeMethodName" value="bindAndValidate"/>
>     </action>
>     <transition on="error" to="viewPageBar"/>
>     <transition on="success" to="submit"/>
> </action-state>
> 
> <action-state id="submit">
>     <action id="myFormAction">
>         <property name="executeMethodName" value="submit"/>
>     </action>
>     <transition on="error" to="error"/>
>     <transition on="success" to="end"/>
> </action-state>
> 
> Keep in mind I've omitted the view states and end states here, (I also typed
> this on-the-fly) but this should get you started.
> 
> Looking at the definition above, and given this need will be quite common,
> it may be wise for us to make the 'executeMethodName' property a first class
> citizen in the DTD.  Erwin, what do you think? Others?  For example:
> 
>     <action id="myFormAction" executeMethod="submit"/>
> 
> That would shorten the above xml a good bit, to:
> 
> <action-state id="bindAndValidatePageFoo">
>     <action id="myFormAction" executeMethod="bindAndValidate"/>
>     <transition on="error" to="viewPageFoo"/>
>     <transition on="success" to="viewPageBar"/>
> </action-state>
> 
> <action-state id="bindAndValidatePageBar">
>     <action id="myFormAction" executeMethod="bindAndValidate"/>
>     <transition on="error" to="viewPageBar"/>
>     <transition on="success" to="submit"/>
> </action-state>
> 
> <action-state id="submit">
>     <action id="myFormAction" executeMethod="submit"/>
>     <transition on="error" to="error"/>
>     <transition on="success" to="end"/>
> </action-state>
> 
> It may also be wise to drop "Name" from "executeMethodName", leaving the
> shorter "executeMethod" - as name is sort of implied already anyway...
> (though name is more accurate from a implementation detail POV, but who
> cares about that here.)
> 
> What do you think?
> 
> Keith
> 
> -----Original Message-----
> From: spr...@li...
> [mailto:spr...@li...] On Behalf Of
> Steven Devijver
> Sent: Saturday, April 02, 2005 12:55 PM
> To: spr...@li...
> Subject: [Springframework-developer] webflow: FormAction question
> 
> Hi,
> 
> I want to create a wizard that spans across multiple pages. I want to
> bind to one and the same form instance across the different pages and
> validate on every page submit. When the wizard completes I want this
> one instance to contain all the information entered through the
> various forms.
> 
> Can I use FormAction for this purpose?
> 
> Thanks
> 
> Steven
> 
> --
> "If you want to be a different fish, you gotta jump out of the school."
> -- Captain Beefheart
> 
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