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Date: Fri, 14 Oct 2005 10:57:15 -0500
From: Hubert Rabago <hrabago@gmail.com>
To: Struts Users Mailing List <user@struts.apache.org>
Subject: Re: [OT] Struts + AJAX Trumps JSF
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On 10/14/05, Michael Jouravlev <jmikus@gmail.com> wrote:
>
> Some nice scripting without Ajax, just Javascript and CSS:
> http://www.themaninblue.com/writing/perspective/2005/10/05/form/form4.htm
> I wish Struts Validator could be that cool :-)

It CAN be.  I spent some time last night figuring out the
javascript/struts tags portion of it, but now I'll have to actually
know how Validator works to hook it up with what I have so far.

The idea is you have a set of controls dedicated to a particular
field.  For starters, this is what I have:

<html:label property=3D"firstName">First Name</html:label>
<html:text property=3D"firstName" />
<html:error property=3D"firstName"/><br/>

The <html:label> should be able to support getting its string from
resources of course:
<html:label property=3D"firstName" key=3D"personForm.firstName.label"/>
(Also shows the 'default' key I'm thinking of using if neither text
nor key is provided.)

Also, a tag to enclose related tags will make things easier:

<html:field property=3D"firstName"
  <html:label/>  <!-- default "key" would be used -->
  <html:text/>
  <html:error/><br/>
</html:field>

The resulting HTML would look like:
<label for=3D"personForm.firstName"
id=3D"personForm.firstName.label">First Name:</label>
<input type=3D"text" name=3D"firstName" id=3D"personForm.firstName">
<span id=3D"personForm.firstName.error" style=3D"display:none"></span>

Now when the user submits the form, Validator will go through all
fields and figure out which ones pass and which ones are invalid.  If
a property is invalid:
* the label's class can be changed
* the span is shown and is used to show a validation error for that propert=
y

It can be done.  I think I'm halfway there, though once I get there
all I'll have is a proof-of-concept using a custom set of tags which
won't allow you to use custom "id" values.

Hubert

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