Another way to do it is to wrap it in the
LabeledPropertySelectionModel and then use "required" as validator,
like this:
/************** .java ******************/
public abstract String getSex();
public IPropertySelectionModel getSexSelectionModel() {
return new LabeledPropertySelectionModel(new
StringPropertySelectionModel( new String[] {"Man", "Woman"} ),
getMessages().getMessage("Choose"));
}
/************** .html ******************/
<span jwcid="[EMAIL PROTECTED]" value="ognl:sex"
model="ognl:sexSelectionModel" validators="validators:required" />
On 4/28/06, Bode, Bianca <[EMAIL PROTECTED]> wrote:
The validator doesnt reject it because 'choice' is a value as well, and
thus valid. A validator cannot on it is own determine that 'choice' is
an invalid value for a 'gender' field
Besides that you also need to set an actual validator on your
PropertySelection component, otherwise it will never work.
Writing a custom validator is the best solution I guess,, and it is not
that hard:
public class SelectValidator implements Validator {
public void validate(IFormComponent field, ValidationMessages
messages, Object obj) throws ValidatorException {
if (((String) obj).startsWith("choice")) {
throw new ValidatorException("You must select
either man or woman for " + field.getDisplayName() + ".");
}
}
public boolean getAcceptsNull() {
return false;
}
public boolean isRequired() {
return false;
}
public void renderContribution(IMarkupWriter writer,
IRequestCycle cycle, FormComponentContributorContext context,
IFormComponent field) {
// not impl
}
}
Don;t forget to put it in hivemodule.xml as well:
<module id="project" version="1.0.0" package="your.projects.package">
</contribution>
<contribution
configuration-id="tapestry.form.validator.Validators">
<validator name="mustSelect" configurable="false"
class="your.projects.package.validator.SelectValidator"/>
</contribution>
</module>
-----Original Message-----
From: news [mailto:[EMAIL PROTECTED] On Behalf Of Carl Pelletier
Sent: vrijdag 28 april 2006 16:53
To: tapestry-user@jakarta.apache.org
Subject: HOW TO validate the first choice of IPropertySelectionModel
Hi everyone. I'm new to Tapestry 4 (never use Tapestry before) and I
would like to say that I love it!
But now, I'm trying to do a simple thing: I would like to display a
combo box on my page with 3 values: "choice", "man", "women" and
validate the value selected.
The dropdown is required so if the user choose "choice" the validator
must reject it.
I trying to do it with a StringPropertySelectionModel and would like to
avoid of doing a custom validator or a custom been.
The default value of the combo box is "choice" so when the user submit
the form, the validator must return a error.
What I am missing? I search the mailling list and found nothing like
this. Sorry If I mist something. sorry for the bad english to. I'm
french.
Here are the IPropertySelectionModel example:
--------------------------
public static final IPropertySelectionModel SEXE_MODEL = new
StringPropertySelectionModel(
new String[] { "Choisir", "Homme", "Femme" });
-------------------------
Here are the method called on the submit of the form:
------------------------
public String onOK() {
ValidationDelegate delegate = this.getDelegate();
if (delegate.getHasErrors()) {
return null;
}
getContactCRUDService().save(getContact(), getInternalId() == null);
return "contactList";
}
------------------------
Here are the combo box in the HTML page.
------------------------
<select jwcid="[EMAIL PROTECTED]"
model="ognl:@[EMAIL PROTECTED]"
value="ognl:Contact.Birth.sexe">
<option value="Choisir"
selected="selected">Choisir</option>
<option value="">---------------</option>
<option value="Homme" >Homme</option>
<option value="Femme">Femme</option>
</select>
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