hi, since it's a nice idea to have an out-of-the-box support via @RequiredIf, i'm going to add such a feature to the validation strategy for @RequiredIf. it will be available in the next milestone (which will be published quite soon).
regards, gerhard http://www.irian.at Your JSF powerhouse - JSF Consulting, Development and Courses in English and German Professional Support for Apache MyFaces 2009/11/18 Gerhard Petracek <[email protected]> > hi, > > basically the current implementation of @RequiredIf is designed to be used > in combination with two text-input fields. anyway, it's quite easy to solve > the requirement with the cross-validation mechanism of myfaces extval. you > can also implement a @ValidateMyCustomConstraintIf based on the > infrastructure of extval. i'll create a wiki which describes the required > steps. > > additional information: > if the information is already available in a bean, you can use > @SkipValidation as well. (however, that's not the case in your use-case.) > > regards, > gerhard > > http://www.irian.at > > Your JSF powerhouse - > JSF Consulting, Development and > Courses in English and German > > Professional Support for Apache MyFaces > > > 2009/11/17 Mike Kienenberger <[email protected]> > > The optional validation framework is ancient at this point. It was a >> short-lived, flawed project. I don't recommend using it as is, but >> maybe you can use pieces of the source code as examples to accomplish >> some of what you need. >> >> Your best bet is to either reuse validateCompareTo >> (CompareToValidator) from Tomahawk or write your own validator using >> that Tomahawk component as a model. You could submit it back as a >> requiredIf validator to MyFaces. This is the approach I would take. >> >> Here's a generic thread on conditional required fields -- one of the >> few I could find on the subject -- and it also talks about using the >> compare-to strategy above. >> >> >> http://forums.sun.com/thread.jspa?trange=15&threadID=500322&forumID=427&tstart=0 >> >> I see there's also a @RequiredIf annotation mentioned in the ExtVal >> docs. I don't know if it's also available as a standard non-annotated >> validator, though. >> >> One other remote possibility is to see if a subForm can be configured >> to be able to do what you need. >> >> On Tue, Nov 17, 2009 at 1:51 PM, laredotornado <[email protected]> >> wrote: >> > >> > So you are the author of the optional validation framework? That is >> > excellent. I was reading the page but am still missing the gist of the >> > example. How would you say, "If element A contains this value, then >> apply >> > this validatino rule to element B?" >> > >> > Thanks, - Dave >> > >> > >> > Mike Kienenberger wrote: >> >> >> >> required will have to be non-true. I don't know if there's an el >> >> expression that will work in your case, so you might just have to >> >> leave it false. >> >> >> >> The following validator works against multiple components. >> >> >> >> http://myfaces.apache.org/sandbox/validateCompareTo.html >> >> >> >> You can either use it as a template for creating your own validator, >> >> or you might be able to use the comparator attribute on it to >> >> accomplish what you need. (Force it to compare against a constant >> >> value of true or false instead of the inputText value). Still not >> >> sure how that'd interact with <f:validateLongRange> >> >> >> >> You might also be able to use pieces of the >> OptionalValidationFramework. >> >> >> >> http://wiki.apache.org/myfaces/OptionalValidationFramework >> >> >> >> >> >> On Tue, Nov 17, 2009 at 12:57 PM, laredotornado < >> [email protected]> >> >> wrote: >> >>> >> >>> Hi, >> >>> >> >>> I'm using MyFaces 1.2.4, Tomahawk 1.1.9. How do I tell JSF that I >> only >> >>> want >> >>> to apply a validator to a text field if a checkbox on the page is >> >>> checked? >> >>> Right now I have this text field ... >> >>> >> >>> <h:inputText id="domeTourNumAdults" value="#{domeTour.numAdults}" >> >>> required="true" >> >>> size="60" >> >>> maxlength="60" >> >>> styleClass="textFields >> >>> numAdultsField"> >> >>> <f:validateLongRange minimum="0"/> >> >>> </h:inputText> >> >>> >> >>> but if a certain checkbox is not checked, I don't care if this field >> is >> >>> left >> >>> blank. Your thoughts are appreciated, - Dave >> >>> -- >> >>> View this message in context: >> >>> >> http://old.nabble.com/Only-want-to-validate-a-text-field-if-checkbox-is-checked-...-how--tp26394554p26394554.html >> >>> Sent from the MyFaces - Users mailing list archive at Nabble.com. >> >>> >> >>> >> >> >> >> >> > >> > -- >> > View this message in context: >> http://old.nabble.com/Only-want-to-validate-a-text-field-if-checkbox-is-checked-...-how--tp26394554p26395396.html >> > Sent from the MyFaces - Users mailing list archive at Nabble.com. >> > >> > >> > >
