Re: validating fd:booleanfield

[Jeremy Quinn]

On 1 Jul 2004, at 11:45, Bruno Dumon wrote:

On Thu, 2004-07-01 at 12:09, Jeremy Quinn wrote:

On 30 Jun 2004, at 17:56, Bruno Dumon wrote:

Thanks for your response Bruno.

On Wed, 2004-06-30 at 13:01, Jeremy Quinn wrote:

Hi All

I need to validate (within the CForms framework) that a set of
checkboxes have all been checked.

I have tried adding <fd:validation/> but it does not appear to have an
effect :

Checked the source: it's indeed not supported. Probably for no
particular reason.

Possible options are:

* adding support for it.

sounds good

Should be no more then adding the following
line to the class BooleanFieldDefinitionBuilder:
setValidators(widgetElement, definition);
I don't have time to test that, but since you already have an example
worked out you could give it a try.

OK, I added setValidators(widgetElement, definition); at line 34, in
the buildWidgetDefinition method.

I then test with the following booleanfield:

<fd:booleanfield id="mod-copyright">
   <fd:label>
     <i18n:text
i18n:catalogue="local">moderate.mod-copyright.label</i18n:text>:
   </fd:label>
   <fd:hint>
     <i18n:text
i18n:catalogue="local">moderate.mod-copyright.hint</i18n:text>
   </fd:hint>
   <fd:help>
     <i18n:text
i18n:catalogue="local">moderate.mod-copyright.help</i18n:text>
   </fd:help>
   <fd:validation>
     <fd:assert test="mod-copyright = True()">
       <fd:failmessage>
         <i18n:text
i18n:catalogue="local">moderate.mod-copyright.fail</i18n:text>
       </fd:failmessage>
     </fd:assert>
   </fd:validation>
</fd:booleanfield>

When I submit this form with the checkbox unchecked, I get no
validation error displayed.

Comparing Field to BooleanField, it looks like BooleanField needs to
implement ValidationErrorAware, so I will try that next.

I also see that the class BooleanField defines the validate method to do
nothing. Just throw that method out (the one from the parent class will
take over).

Yes.

What I cannot work out now is how to do the actual validation.

Looking at Field.java, it uses the Datatype to do this:
validationError = getDatatype().validate(value, new ExpressionContextImpl(this));

But BooleanField has no datatype .....

any suggestions ?

regards Jeremy

--
Bruno Dumon                             http://outerthought.org/
Outerthought - Open Source, Java & XML Competence Support Center
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