Hello Chris,
I don't understand the problem, I guess, since it seams quite simple
to me...
If you want to check two fields: Why don't you just check the values
in the form listener using a validation delegate?
If I want to check on the password and password confirmation field,
I'd do it like that:
public IPage onSubmit() {
ValidationDelegate delegate = getDelegate();
if ((getPassword1() != null) && (getPassword2() != null) &&
(!(getPassword1().equals(getPassword2())))){
delegate.setFormComponent((IFormComponent)
getComponent("password1"));
delegate.recordFieldInputValue(null);
delegate.record("errormessage", null);
delegate.setFormComponent((IFormComponent)
getComponent("password2"));
delegate.recordFieldInputValue(null);
delegate.record("errormessage", null);
return null;
}
if (delegate.getHasErrors()) {
return null;
}
// continue listener...
}
Best regards
Gregor
am Montag, 10. Oktober 2005 um 22:15 schrieben Sie:
> It is 4 months later and I still haven't come up with a solution for this. I
> gave up on it back then and somebody else has come to me trying to solve the
> problem. Things have changed since we are now using Tapestry 4, so the info
> about the defer component is out of date, but the situation is about the
> same. I need to perform validation that depends on two fields' inputs. How
> do I do this?
> -Chris
> On 6/2/05, Chris Norris <[EMAIL PROTECTED]> wrote:
>>
>> I'm going to try to boil this down to the neccesities. If it doesn't
>> make sense, I'll provide some code.
>>
>> I have a Foreach loop inside of a form. The loop generates a couple of
>> sets of FieldLabel/ValidField components*.
>>
>> The problem is that two of the fields' validation depend on each other.
>> If both fields are empty, they both need to be marked as errored so that
>> the error markup will be written. If one or the other has a value, they
>> are both valid. Can someone point me in the best direction for this?
>>
>> My first thought was to record the name of the ValidField component when
>> the page was getting the value for it. I would get the names, something
>> like validComponentName and validComponentName$0. At form rewind time,
>> though, I couldn't figure out how to get the components given those
>> names and set them in error. It seems impossible, given that getName()
>> will always return the most recent name generated for the component. I
>> tried going through the ValidationDelegate's FieldTrackings and going
>> through the map returned by getComponents(), neither of which worked
>> very well.
>>
>> My next option was going to be to make a special validator for this
>> purpose. It would have to be a page property rather than a bean so that
>> the same validator would be used for both ValidFields. All of these
>> approaches seem ugly to me. Ideas? Directions?
>>
>> -Chris
>>
>>
>> *uses a Defer type component to take care of the off by one validation
>> error. the Defer component wraps a FieldLabel and takes in a block that
>> contains a ValidField:
>> protected void renderComponent(IMarkupWriter writer, IRequestCycle
>> cycle)
>> {
>> IMarkupWriter nested = writer.getNestedWriter();
>> getBlock().renderBody(nested, cycle);
>> renderBody(writer, cycle);
>> nested.close();
>> }
>>
>>
>>
--
Mit freundlichen Grüßen
Gregor Melhorn
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