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Posted to users@tapestry.apache.org by Will Norris <wi...@willnorris.com> on 2007/12/03 21:22:54 UTC
T5 - custom component validation
As usual, I'm sure I'm just missing something here... I can't quite
figure how to do validation of a custom component. I basically want
to do what is described here[0] about using onSuccess(), but in a
component rather than a page. I basically have a PasswordForm
component which itself has a form, and that needs to verify that the
"password" and "confirm password" fields are equal. I'm able to do
this validation in PasswordForm.onSuccess() without any trouble....
String onSuccess() {
if (!password.equals(password2)) {
log.error("Passwords don't match");
form.recordError("Passwords don't match");
return null;
}
}
but how do I notify the containing page that there is an error?
Currently, the page just moves right along after logging my error
message. I've tried throwing a ValidationException from onSuccess(),
but that ends up being displayed to the user with a stacktrace and
all. I even looked at the standard Form component's onAction method
and copied some stuff from there (specifically looking at
_resources.triggerEvent(FAILURE, context, handler)) but that didn't
help at all. I separately tried extending AbstractField and
overriding processSubmission() as suggested in one post, but that
didn't do much for me.
Any suggestions would be much appreciated.
[0]: http://tapestry.apache.org/tapestry5/tapestry-core/guide/validation.html
-will
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Re: T5 - custom component validation
Posted by Will Norris <wi...@willnorris.com>.
worked perfectly, thanks. see, I knew I was missing *something* :)
-will
On Dec 3, 2007, at 1:41 PM, Filip S. Adamsen wrote:
> Try moving your validation logic to onValidate. If any errors are
> added to the form in this method Tapestry won't call onSuccess but
> display the page again with your errors shown in the Errors component.
>
> -Filip
>
> Will Norris skrev:
>> As usual, I'm sure I'm just missing something here... I can't quite
>> figure how to do validation of a custom component. I basically
>> want to do what is described here[0] about using onSuccess(), but
>> in a component rather than a page. I basically have a PasswordForm
>> component which itself has a form, and that needs to verify that
>> the "password" and "confirm password" fields are equal. I'm able
>> to do this validation in PasswordForm.onSuccess() without any
>> trouble....
>> String onSuccess() {
>> if (!password.equals(password2)) {
>> log.error("Passwords don't match");
>> form.recordError("Passwords don't match");
>> return null;
>> }
>> }
>> but how do I notify the containing page that there is an error?
>> Currently, the page just moves right along after logging my error
>> message. I've tried throwing a ValidationException from
>> onSuccess(), but that ends up being displayed to the user with a
>> stacktrace and all. I even looked at the standard Form component's
>> onAction method and copied some stuff from there (specifically
>> looking at _resources.triggerEvent(FAILURE, context, handler)) but
>> that didn't help at all. I separately tried extending
>> AbstractField and overriding processSubmission() as suggested in
>> one post, but that didn't do much for me.
>> Any suggestions would be much appreciated.
>> [0]: http://tapestry.apache.org/tapestry5/tapestry-core/guide/validation.html
>> -will
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>> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
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>
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Re: T5 - custom component validation
Posted by "Filip S. Adamsen" <fs...@fsadev.com>.
Try moving your validation logic to onValidate. If any errors are added
to the form in this method Tapestry won't call onSuccess but display the
page again with your errors shown in the Errors component.
-Filip
Will Norris skrev:
> As usual, I'm sure I'm just missing something here... I can't quite
> figure how to do validation of a custom component. I basically want to
> do what is described here[0] about using onSuccess(), but in a component
> rather than a page. I basically have a PasswordForm component which
> itself has a form, and that needs to verify that the "password" and
> "confirm password" fields are equal. I'm able to do this validation in
> PasswordForm.onSuccess() without any trouble....
>
> String onSuccess() {
> if (!password.equals(password2)) {
> log.error("Passwords don't match");
> form.recordError("Passwords don't match");
> return null;
> }
> }
>
> but how do I notify the containing page that there is an error?
> Currently, the page just moves right along after logging my error
> message. I've tried throwing a ValidationException from onSuccess(),
> but that ends up being displayed to the user with a stacktrace and all.
> I even looked at the standard Form component's onAction method and
> copied some stuff from there (specifically looking at
> _resources.triggerEvent(FAILURE, context, handler)) but that didn't help
> at all. I separately tried extending AbstractField and overriding
> processSubmission() as suggested in one post, but that didn't do much
> for me.
>
> Any suggestions would be much appreciated.
>
> [0]:
> http://tapestry.apache.org/tapestry5/tapestry-core/guide/validation.html
>
> -will
>
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