Hi Mark.
If you make your form listener return an ILink, tapestry will redirect the
client to the new URL and any subsequent "refresh" will only reload that
page, not submit the form again.
Simple example:
public ILink submit()
{
addStuffToDatabase();
return getPageService().getLink(false, "YourResultPage");
}
@InjectObject("engine-service:page")
public abstract IEngineService getPageService();
You can also throw a RedirectException if you want, it sends a HTTP
redirect to the client. You're thinking of a PageRedirectException, which
is handled internally.
Martin
On Mon, 10 Apr 2006 01:47:51 +0300, Mark <[EMAIL PROTECTED]> wrote:
Hi,
I just searched for a solution for this problem in the archive, but did
not find anything that seemed to work:
Assume I have a request that adds or deletes a record to/from the
database. The request gets executed, record gets added or deleted and a
comfirmation is displayed.
If the user now hits the F5 key or the "Reload" or "Refresh" button of
the browser, the request is sent to the server again, causing the record
to be added or deleted (which will of course fail since the record is
already gone) again.
I did find a number of posts regarding this, but most of them ended in
the recommendation to use a RedirectException in the add/delete page
after the add/delete has been performed. However, I do not see how this
would help, since the RedirectException is executed internally by
Tapestry, not by the Browser.
This post here describes how to reproduce the problem using the VLib
project that comes with Tapestry:
http://article.gmane.org/gmane.comp.java.tapestry.user/7224/match=browser+refresh
This post seems to have a solution, but it is quite complex and outdated
(from 2003), so I am wondering if T4 has a better solution in the
meantime?
http://article.gmane.org/gmane.comp.java.tapestry.user/3580/match=contribute+action+link
Thanks,
MARK
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