Thanks Fred, that's what I found yesterday night after hours of searching, too. However, I think I'll go with Sebastiens approach, because it unifies converter and validation check.
Thanks to both of you! 2013/2/14 Fred!!! <schreibf...@googlemail.com>: > Hi, > > an other solution is to add a NullAcceptingValidator to your Textfield. Thus > wicket will pass to IValidator.validate(IValidatable) > > See > http://ci.apache.org/projects/wicket/apidocs/6.0.x/org/apache/wicket/validation/INullAcceptingValidator.html > > Cheers Fred > > Am 14.02.2013 00:55, schrieb Sebastien: > >> Hi, >> >> Well, the required flag ensures that the input is not empty, not that it >> is >> of the correct type... >> >> If the conversion fails, is it supposed (I guessed) to throw a >> ConversionException. >> As it seems to not be the case, I would have overridden convert input as >> follow (not tested): >> >> class MyJodaDateTextField >> { >> protected void convertInput() >> { >> super.convertInput(); >> >> Date value = this.getConvertedInput(); >> >> if (value == null) >> { >> //handles the error message >> ValidationError error = new ValidationError(); >> error.addKey("MyJodaDateTextField.ConversionError"); >> //wicket6 >> //error.addMessageKey("MyJodaDateTextField.ConversionError"); >> //wicket1.5 >> error.setVariable("date", value); >> this.error(error); >> } >> } >> } >> >> MyJodaDateTextField.properties will contain: >> MyJodaDateTextField.ConversionError='${date}' is not a valid Joda datetime >> >> Also pay attention to check the type in getConverter >> >> { >> if (Date.class.isAssignableFrom(type)) >> { >> return (IConverter<C>)new JodaDateTimeConverter(); >> } >> >> return super.getConverter(type); >> } >> >> >> Hope this helps, >> Sebastien. >> >> On Wed, Feb 13, 2013 at 4:46 PM, Sebastian Gaul >> <sebast...@mgvmedia.com>wrote: >> >>> I have a TextField which overrides it's getConverter method to add a >>> Joda time converter instead: >>> >>> new TextField<P>(id) { >>> @Override >>> public <P> IConverter<P> getConverter(Class<P> type) { >>> return (IConverter<P>) new JodaDateTimeConverter(); >>> } >>> }; >>> >>> The converter returns null if input was invalid. However, I want to be >>> able to flag this field as required, and I don't know how to do that: >>> >>> - textField.isRequired(true) does not work, because required checks >>> are done before conversion. This doesn't work for non-empty but >>> invalid inputs. >>> >>> - textField.add(.. some validator ..) does not work because no >>> validator is called if the converter returned null. >>> >>> I really don't see an approach to flag my date fields as required. Do >>> you know how to do that? Probably my approach is not suited at all? >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >>> For additional commands, e-mail: users-h...@wicket.apache.org >>> >>> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
