It would be pretty straight forward to do. You need to define some
convention to identify that you want a property value in your args, then
when you generate the message, replace any such values. For example....
<field property="dateOfBirth" depends="required, date">
<arg0 key="x.dateOfBirth"/>
<arg1 key="${dateOfBirth}" resource="false"/>
<var>
<var-name>datePatternStrict</var-name>
<var-value>dd/mm/yyyy</var-value>
</var>
</field>
Then in your validators (e.g. date validator), when you get the message if
the validation fails - then you need to replace any arg values. Something
like.....
public String getMessage(Object bean, Field field,
ValidatorAction va, MessageResources resources) {
String validationName = va.getName();
// Get the message
Msg msg = field.getMessage(validationName);
if (msg == null) {
msg = va.getMsg();
}
// Process args
String[] args = field.getArgs(validationName);
for (int i = 0; i < args.length; i++ ) {
if (args[i] == null) {
continue;
if (args[i].isResource()) {
args[i] = resources.getMessage(args[i], null);
} else if (args[i].startsWith("${")) {
String property = args[i].substring(2, args[i].length -2);
args[i] = ValidatorUtils.getValueAsString(bean, property);
}
}
// retrieve message from resources
return resources.getMessage(msg.getKey(), args);
}
hth
Niall
----- Original Message -----
From: "Daggumalli, Sivaji" <[EMAIL PROTECTED]>
Sent: Wednesday, November 16, 2005 11:25 PM
Sorry to confuse you Niall. Actually we are using Commons Validator as
standalone project. (Not with Struts). I was wrongly mentioned that
earlier by mistake.
Is it possible to extend commons Validator 1.2.0 to achieve this
behavior?
Regards and Thanks in advance.
Siva
-----Original Message-----
From: Niall Pemberton [mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 16, 2005 5:14 PM
To: Jakarta Commons Developers List
Subject: Re: [Validator] how to give user input in Arg
There is no way to do this in Struts/Validator currently - unless you
write
your own versions of the Struts validators and implement a mechanism to
do
this when generating the error message.
Niall
----- Original Message -----
From: "Daggumalli, Sivaji" <[EMAIL PROTECTED]>
Sent: Wednesday, November 16, 2005 10:04 PM
Hi,
Afternoon got a commons Validator problem...
We are using the Struts Validator and in my validation.xml i have:
<form name="myForm">
<field property="dateOfBirth" depends="required, date">
<arg0 key="x.dateOfBirth"/>
<var>
<var-name>datePatternStrict</var-name>
<var-value>dd/mm/yyyy</var-value>
</var>
</field>
</form>
In Application Resources i have:
errors.date={0} is not a date.
x.dateOfBirth=Date Of Birth
If the user entered date is in the wrong format an error message is
produced:
Date Of Birth is not a date. This is all good. But what I am trying to
achieve is including the input value in the message. I know in the
validation.xml you can specify and use vars in the error message (for
example):
<arg1 key="${var:minlength}"
name="minlength" resource="false" />
<var>
<var-name>minlength</var-name>
<var-value>10</var-value>
</var>
What I want to do is replace the <var-value> (the literal vaue '10')
with the user input. I have tried many things
${field:dateOfBirth}, ${dateOfBirth}, ${myForm.dateOfBirth} but none
have worked.
Regards and Thanks in advance,
Siva
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