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Posted to users@tapestry.apache.org by Michael Engelhart <mo...@gmail.com> on 2005/04/13 19:22:33 UTC

accessing a record()'d error from ValidationDelegate

Hi -

How does one access an error set on a component like this:
protected void recordError(IValidationDelegate delegate, String
componentId, String message, ValidationConstraint constraint) {
        IFormComponent component = (IFormComponent) getComponent(componentId);
        delegate.setFormComponent(component);
        delegate.record(message, constraint);
}

When i call this method from a page like this:
recordError(delegate, "ExpirationDateField", "You must set a valid
expiration date", null);

i can't seem to find anywhere in the validation framework where I can
access a component's error message in the writeSuffix() method of my
class that extends ValidationDelegate.

Thanks
Mike

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Re: accessing a record()'d error from ValidationDelegate

Posted by Kent Tong <ke...@cpttm.org.mo>.
Michael Engelhart <moosebrookfarm <at> gmail.com> writes:

> So in my writeSuffix() I simply do this:
>             if (isInError()) {
>                 RenderString errorString = (RenderString)
> findCurrentTracking().getErrorRenderer();
>                 writer.print(errorString.getString());
>             }

Any reason why the following wouldn't work for you:

if (isInError()) {
  findCurrentTracking().getErrorRenderer().render(writer, cycle);
}



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Re: accessing a record()'d error from ValidationDelegate

Posted by Michael Engelhart <mo...@gmail.com>.
Hi - 

not sure why I wasn't able to find any of this by googling but the
fact that the Tapestry javadoc shows that the getErrorRenderer()
returns an IRender interface led me astray.  After some logging I
noticed it was returning a RenderString which has a getString()
method.  So in my writeSuffix() I simply do this:
            if (isInError()) {
                RenderString errorString = (RenderString)
findCurrentTracking().getErrorRenderer();
                writer.print(errorString.getString());
            }

works perfectly.

On 4/13/05, Michael Engelhart <mo...@gmail.com> wrote:
> Hi -
> 
> How does one access an error set on a component like this:
> protected void recordError(IValidationDelegate delegate, String
> componentId, String message, ValidationConstraint constraint) {
>         IFormComponent component = (IFormComponent) getComponent(componentId);
>         delegate.setFormComponent(component);
>         delegate.record(message, constraint);
> }
> 
> When i call this method from a page like this:
> recordError(delegate, "ExpirationDateField", "You must set a valid
> expiration date", null);
> 
> i can't seem to find anywhere in the validation framework where I can
> access a component's error message in the writeSuffix() method of my
> class that extends ValidationDelegate.
> 
> Thanks
> Mike
>

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