On Nov 14, 2006, at 1:49 PM, miya wrote:
> > Is there another way to validate a TableForm Widget without > declaring/defining it structure outside the Root class (or any class > for that matter) ? > > ------------------------- > > For example: > > (From http://docs.turbogears.org/1.0/ErrorHandling ) > > from turbogears import controllers, expose, redirect > from turbogears import validate, validators as v > from turbogears import error_handler > from turbogears import widgets as w > > number_form = w.ListForm( > fields = [ > w.TextField( > name="number", > label="Enter a Number", > validator=v.Int(not_empty=True)) > ], > submit_text = "Submit Number!" > ) > > ## This is what the template looks like > # <html xmlns:py="http://purl.org/kid/ns#";> > # <body> > # <h1>This is a Form Page!</h1> > # ${form(value_of('data',None), action=action, method="POST")} > # </body> > # </html> > > class Root(controllers.RootController): > > @expose(template=".templates.welcome") > def index(self,number=-1,tg_errors=None): > return dict(data={'number':number}, > form=number_form, > action="/validated_number") > > @expose() > @error_handler(index) > @validate(form=number_form) > def validated_number(self, number=2): > return dict(valid_number=number) > > ------------------------- > > Here number_form is declared/defined outside the Root class. Wouldn't > it be great if its defined inside the index method? I know that if > I do > that, the @validate decorator tag can't find the number_form. So, is > there another way to do this? Because I just can't imagine to declare > and define every and each one of my forms outside the Root (or any ) > class. Or is this the correct/standard way to do this? Yep, that's the correct way to do it. If you need to pass a form dynamically to @validate you can pass a callable that returns the form when called without args. However, for 'index' to redisplay previous input and errors when called by errorhandling owhen validation fails, exactly the same form instance that validated input must be the one that redisplays errors ("displayed_form is validated_form"). Why would make so great that the form was defined inside "index"? Keep in mind that the form would have to be initialized on every request instead of just once on "compile" time... If you need to reuse fields for similar but different forms you can define common fields in a WidgetsLists (or a plain ol' python list) and concatenate them as needed. Alberto --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TurboGears" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/turbogears?hl=en -~----------~----~----~----~------~----~------~--~---
