Hi David,
you probably don't need to extend constraints since those don't
contain actual validation rules. They provide meta-data that will be
interpreted by for example the validate method and validation rules
will be created accordingly.
To add custom validation rules, all you need to do is add the
following method in activateValidation:
addRule(your_validationrule_instance).
Your validation rule has to implement the following interface:
http://rifers.org/docs/api/com/uwyn/rife/site/ValidationRule.html
If your rule relates to a bean property, you can extend this abstract
base class for convenience:
http://rifers.org/docs/api/com/uwyn/rife/site/
PropertyValidationRule.html
Otherwise, this abstract base class will probably provide what you need:
http://rifers.org/docs/api/com/uwyn/rife/site/
AbstractValidationRule.html
I hope this helps.
Best regards,
Geert
I would like to implement custom validation rules for form inputs
which go a
bit beyond the standard RIFE ones. I can understand how to add a
custom
error message so that failure of the validation can be reported.
What I
can't figure out is where the actual rules go. For example, in a
user manager
app, I would like to:
(a) test whether password and retyped password are the same and
complain if
not.
(b) test that login name is an email address OR one of a fixed list
of special
names, and complain if not.
I am using bean constrained properties, so I imagine I ought to be
able to
define a custom constraint, perhaps by extending
ConstrainedProperty to
include new methods? I don't see how I would do (a) this way (how
to refer
to another property to compare with?), though I could imagine (b)
is soluble
this way, though whether RIFE would register the connection between
the
custom method and the custom error message without some further
code is
doubtful! I'm missing something - can someone help?
Thanks,
David Herbert.
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