Re: Form AJAX submission with Zone component appears to break if form validation is added.

[Jun Tsai <ju...@gmail.com>]

I have the same problem.




2008/5/13 Eric Rogers <pu...@gmail.com>:

> 5.0.12 Snapshot
>
> If I have a page containing a form and an associated zone component to
> update, everything works as expected.  However, when I add validation to a
> field on the form, the submission for the form is treated as regular
> submission, and not one handled through AJAX.  More specifically, looking
> at
> the tapestry.js script, it appears that when the page is loaded, the form's
> onsubmit event handler is at first bound properly.  However, the
> Tapestry.FormEventManager appears to rebind the onsubmit event to its own
> handleSubmit function, completely ignoring the previous event handler.
>
> I am just wondering if this is working as intended and whether or not
> anyone
> else has encountered this.  If not, would this be classified as a bug?  I
> have included some test code below.
>
> Thanks,
>
> Eric
>
> Test.tml:
>
> <t:Zone t:id="statusZone"/>
>
> <t:Form t:Zone="statusZone">
>
>  <t:TextField t:id="name" t:value="name"/>
>
>  <t:Submit/>
>
> </t:Form>
>
>
> Test.java:
>
> public class Test {
>
>    private String name;
>
>    //if we remove @Validate("required"), everything works as expected.
>    @Validate("required")
>    public String getName() {
>        return name;
>    }
>
>    public void setName(String name) {
>        this.name = name;
>    }
>
>    Object onSuccess() {
>        JSONObject response = new JSONObject();
>        response.put("content", "test me");
>        return new JSONStreamResponse(response);
>    }
> }
>



-- 
regards,
Jun Tsai

Re: Form AJAX submission with Zone component appears to break if form validation is added.

[Thiago H de Paula Figueiredo <th...@gmail.com>]

On Wed, 04 Jun 2008 01:00:43 -0300, Jun Tsai <ju...@gmail.com> wrote:

> I have the same problem.

Any T5 event handler method that is fired by AJAX must return a Block or  
Zone containing the new zone content, so you have to return your Zone in  
your validation method when validation fails. ;)

Use something like (not tested), even when you only use T5 validation:

@OnEvent(component="form", value=Form.VALIDATE_FORM)
public Object validate() {

	// validation logic

	if (request.isXHR() && form.getHasErrors()) {
		return zone;
	}
	else {
		return null;
	}

}

Thiago

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