Sure. I had figured to bring it to the -users list before anything -dev
related so I could get it reviewed. But I'm happy to put in an
enhancement.
Done. http://issues.apache.org/bugzilla/show_bug.cgi?id=34454
K.C. Baltz
James Mitchell wrote:
Thanks for your contribution. Any chance I could convince you to add
all of this to an enhancement ticket in bugzilla? That's the best way
to make sure this won't get lost of forgotten.
Thanks
--
James Mitchell
Software Engineer / Open Source Evangelist
Consulting / Mentoring / Freelance
EdgeTech, Inc.
678.910.8017
AIM: jmitchtx
Yahoo: jmitchtx
MSN: [EMAIL PROTECTED]
----- Original Message ----- From: "K.C. Baltz" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <user@struts.apache.org>
Sent: Wednesday, April 13, 2005 5:43 PM
Subject: [contribution] Consecutive Date Validator
I had the need today to validate that two dates (start and end) are
in the proper relation. Searching the oracle at Google, I was unable
to find any solution other than people looking for the same thing and
being directed to write their own. So I wrote one today and figured
I'd contribute it back so that others can find it and I can also get
a little extra scrutiny.
This was written for Struts 1.2.4
K.C. Baltz
================== snippet from validator-rules.xml ================
<validator name="consecutiveDates"
classname="com.mycompany.web.util.ValidationUtil"
method="validateConsecutiveDates"
methodParams="java.lang.Object,
org.apache.commons.validator.ValidatorAction,
org.apache.commons.validator.Field,
org.apache.struts.action.ActionMessages,
javax.servlet.http.HttpServletRequest"
depends=""
msg="errors.consecutiveDates">
</validator>
=================== Example entry in validation.xml ================
<form name="manageResourcesForm">
<!-- validate that this both a valid date and that it
precedes the end date -->
<field property="startDate" depends="date,consecutiveDates">
<msg name="consecutiveDates"
key="errors.consecutiveDates" />
<arg0 key="admin.editNotice.prompt.startDate" />
<arg1 key="admin.editNotice.prompt.endDate" />
<var>
<var-name>secondProperty</var-name>
<var-value>endDate</var-value>
</var>
</field>
<!-- need to validate that this is a date -->
<field property="endDate" depends="date">
<arg0 key="admin.editNotice.prompt.endDate" />
</field>
</form>
=============== snippet from ValidationUtil.java ================
public static boolean validateConsecutiveDates(Object bean,
ValidatorAction va, Field field,
final ActionMessages errors, HttpServletRequest request)
{
boolean passedValidation = true;
String startDateString = ValidatorUtils.getValueAsString(bean,
field.getProperty());
String sProperty2 = field.getVarValue("secondProperty");
String endDateString = ValidatorUtils.getValueAsString(bean,
sProperty2);
if(!GenericValidator.isBlankOrNull(startDateString) &&
!GenericValidator.isBlankOrNull(endDateString))
{
try
{
Locale locale = RequestUtils.getUserLocale(request,
null);
DateFormat formatter =
DateFormat.getDateInstance(DateFormat.SHORT, locale);
Date startDate = null;
Date endDate = null;
try
{
startDate = formatter.parse(startDateString);
}
catch (ParseException e)
{
errors.add(field.getArg(0).getKey(), new
ActionMessage("errors.date", startDateString));
passedValidation = false;
}
try
{
endDate = formatter.parse(endDateString);
}
catch (ParseException e)
{
errors.add(field.getArg(1).getKey(), new
ActionMessage("errors.date", endDateString));
passedValidation = false;
}
if( startDate != null && endDate != null &&
startDate.after(endDate) )
{
errors.add(ActionMessages.GLOBAL_MESSAGE,
Resources.getActionMessage(request, va, field));
passedValidation = false;
}
return passedValidation;
}
catch(Exception e)
{
log.error("Exception caught trying to perform
validateConsecutiveDates", e);
errors.add(field.getKey(),
Resources.getActionMessage(request, va, field));
return false;
}
}
return true;
}
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