How to fetch Form from within "afterSubmit" handler?

[Vjeran Marcinko]

Hello,

I have created multi-form-field component (eg, DateRangeEditor component 
that has two DatePickers inside that are used to set "start" and "end" dates 
for DateRange domain class).
When Form that contains this DateRangeEditor component submits, the 
component gets notified about this via "afterSubmit" handler triggered by 
SubmitNotifier placed inside DateRangeEditor.

Inside "aftersubmit" handler I do custom validation that start date is prior 
to end date, and I want to register my custom error to Form component that 
contains my DateRangeEditor component, but I dunno how to fetch Form 
component instance to register it? Or is this kind of validation done 
someway differently?

And one more question - is it possible to register optional validator for 
some form field programmatically? I can create desired FieldValidator via 
injected FieldValidatorSource, but returning null when I don't want 
validation to be set raises NPE 'cause null is not allowed to be set:

   public FieldValidator getMyRuntimeFieldValidator() {
       if (isValidationRequired) {
           return fieldValidatorSource.createValidators(someField, 
"required");
       }
       return null;
   }

Regards,
Vjeran




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