I'm not familiar worth T4.1 but it seems to me that you could put something in the submit or success handler that validates.
Take a look here - http://tapestry.apache.org/tapestry5/guide/validation.html and find the following snippet: public class Login { .... * String onSuccess() { if (!authenticator.isValid(userName, password)) { form.recordError(passwordField, "Invalid user name or password."); return null; }* return "PostLogin"; } Oddly enough, it is NOT the validation handler I want to bring to your attention to (here on this validation.html page :) and again, obviously, this is Tapestry 5 - but notice how authentication is done in the SUCCESS handler. I would try to do something similar (albeit validation) to look at the fields you are processing. It'd be manual ... but notice here - an error is returned and associated with T5 fields ... Again - you'll need to find T4s parallel. -Luther On Mon, Mar 9, 2009 at 10:04 AM, Elmer Smith <esm...@venterraliving.com>wrote: > Ivano, > > I'm pretty sure what you want to do is provide an onValidate method in > your page class. That method gets called expressly for doing more > complicated validation. If you have more than one form, you'll have to > further specify it e.g. onValidateFromMyFormName (or use @OnEvent > annotation). Here's some abbreviated code: > > @InjectComponent("fielda") > private TextField fieldaComponent; > > @InjectComponent > private Form formComponent; > ... > > Object onValidate() { > If (fielda == null) > formComponent.recordError(fieldaComponent, "Example error > message for fielda"); > > if (fielda=="") && (fieldb=="" || fieldc=="") > throw new RuntimeException(); > > return null; // this will keep you on the same page > > // return NewPage.class; // this will goto the NewPage page, etc. > etc. > } > > You may just want to provide a validation message. I've shown an > example using fielda in the preceding code. > > Read the docs on the Form component, and see the examples in the user > guide. > > Cheers > -----Original Message----- > From: Ivano Luberti [mailto:lube...@archicoop.it] > Sent: Monday, March 09, 2009 8:30 AM > To: Tapestry users > Subject: cross field validation with empty fields > > Sorry to ask for this again, but I have seen no answer. > I will get no answer again I will stop asking for this, of course. > > TIA > > ---------------- > Hello, we are using T4.1 > We have to validate a form and we don't want to do it client side. > Let say we have three text fields. > The validation should implement the following rule: > if (fielda="") && (fieldb="" || fieldc="") > then throw new Exception(""); > > The problem is that we cannot link the validation to neither field > because they can be empty and the custom validator we are trying to > implement is nevere called if the field is empty. > We tried to follow the Identity validator but it is also not called > when the field to which is associated is empty. > > Is there another way to accomplish cross field validation ? > > It seems to us that in T4.1 lacks a validator attribute for the form > component. > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > > This message (including any attachments) is intended only for the use of > the individual or entity to whom it is addressed and may contain information > that is non-public, proprietary, privileged, confidential, and exempt from > disclosure under applicable law or may constitute attorney work product. If > you are not the intended recipient, you are hereby notified that any use, > dissemination, distribution, or copying of this communication is strictly > prohibited. If you have received this communication in error, please notify > us immediately by telephone and (i) destroy this message if a facsimile or > (ii) delete this message immediately if an electronic communication. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > >
