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From "David Webb (JIRA)" <>
Subject [jira] Commented: (STR-3193) Locale Date Validation with Client Side Javascript
Date Mon, 25 Jan 2010 16:08:24 GMT


David Webb commented on STR-3193:

That sounds fine.  The important thing is that is uses a standard pattern that the validator
can use.  Thanks.

> Locale Date Validation with Client Side Javascript
> --------------------------------------------------
>                 Key: STR-3193
>                 URL:
>             Project: Struts 1
>          Issue Type: Bug
>          Components: Tag Libraries
>    Affects Versions: 1.3.10
>         Environment: Windows XP or Suse 10.2, JBoss 4.2.3, Struts 1.3.10, JDK1.5_16
>            Reporter: David Webb
>            Assignee: Paul Benedict
>             Fix For: Pending Review
>         Attachments:, Struts.patch
> This bug has to do with the struts-taglib package, specifically the code generated by
<html:javascript> which comes from the org.apache.struts.taglib.html.JavascriptValidatorTag
> My implementation of the patch may not be the most effective way to accomplish this,
but the bug prevents a true Locale specific implementation of Forms with Dates.
> From the Struts Validation Documentation (which holds true on the server side validation):
> "If no pattern is specified the default short date format is assumed."
> However, if you define a Form Field as a "date" with no pattern, the client side javascript
does not render the datePattern in the javascript and causes a clientside js NPE when checking
the length of this.datePattern.
> I have added an additional method for formatting the Locale SHORT date format to fill
out in the MM, dd, and yyyy elements required by the static javascript generator from the
Commons-Validator project.
> The real patch is when looping over form fields from validation.xml.  I check if it is
a type "date" then keep track of whether or not a var named "datePattern" exists.  If not,
I add datePattern based on the Local passed in.
> Please let me know if I can help. This is a really important feature for my application.

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