[Seaside] Collecting form input

[ryan]

Those instance variables, they are temporary variables. 
Instance variables are declared in the class declaration something like.

WAComponent subclass: #addUserForm
	instanceVariableNames: 'newName newSalutation'
	classVariableNames: ''
	poolDictionaries: ''
	category: 'MyProject'

-------------
renderContentOn: html
html
     form: [
	html textInput value: 'type name here';
                 callback: [:name | newName := name].
        html select list: salutations;
                  callback: [:userSalutation| newSalutation := userSalutation ];
                  labels: [:userSalutation | userSalutation asString].
        html submitButton
                   callback: [self addUserNamed: newName withSalutation: newSalutation];
                   value: 'Add New User']

Should work fine.
You might be interested in looking at using something like Ramon Leon's
SSForms available in his image that you can download from his blog (http://onsmalltalk.com/)
or Magritte to help you build forms complete with validation.


On Wed, 2008-10-08 at 10:28 +0200, Sebastian Nozzi wrote:
> Hi Phillipe,
> 
> thanks for your reply.
> 
> > You could also use ValueHolders but that gets quite ugly. I'd use
> > instance variables and split it up.
> 
> I'll look into ValueHolders (never heard of them; but I'm a newbie... so...)
> 
> What do you mean by the latter? Because it was with instance variables
> that I first tried, but as I said it didn't work:
> 
> | newName newSalutation |
> html
>        form: [html textInput value: 'type name here';
>                         callback: [:name | newName := name].
>                 html select list: salutations;
>                         callback: [:userSalutation| newSalutation :=
> userSalutation ];
>                         labels: [:userSalutation | userSalutation asString].
>                 html submitButton
>                         callback: [self addUserNamed: newName
> withSalutation: newSalutation];
>                          value: 'Add New User']
> 
> When the callback in the submitButton was called, "newName" and
> "newSalutation" were nil.
> 
> What I was trying to do is to avoid creating a temporary user
> instance, and only create it when the user submits the data (the user
> could instead opt to go back).
> 
> But I think I might be overcomplicating things and I might just create
> the temporary instance, since I'm creating a Dictionary anyway...
> 
> Greetings,
> 
> Sebastian
> _______________________________________________
> seaside mailing list
> seaside at lists.squeakfoundation.org
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside