In a way this is exactly what I do right now.. But the problem is the
request attributes & parameters sent to the 'returnTo' page.. These are
lost when using this technique..
In my version I also set the request attributes as hidden form fields
and pass them
on like that.. But I wasn't sure if it's a good idea to pass them on as
hidden fields..
/tuomo
Keith Bacon wrote:
>--- Keith Bacon <[EMAIL PROTECTED]> wrote:
>
>>Tuomo,
>>Not totally finalised but at the moment I do it a
>>bit
>>like the example below.
>>If you searched the archives for 'logon page' there
>>are ways you can forward to the logon page & have it
>>return to the page that started it, which is the
>>same
>>thing. These example are probably better than mine!
>>Keith.
>>======
>>example - form1 transfers to form2 & wants form2 to
>>transfer to form1.
>>
>>
>>form1 has
>>/*
>>* Let next form know where to return to.
>>*/
>>request.addAttribute("returnTo",
>>"globalForwardForm1");
>>
>>
>>form2 has
>>/*----
>>1 - save the input returnTo value. 1st time in
>>caller
>>has stored it as req. attribute. Subsequent times
>>this
>>action has saved it as a hidden field on the form
>>(could save in the session).
>>------*/
>>String returnTo = request.getAttribute("returnTo");
>>if (returnTo == null) formBean.getReturnTo();
>>
>>thisForm.setReturnTo() = returnTo;
>>
>>/*
>>* 2 - on completion
>>*/
>>return new ActionForward("returnTo");
>>
>>
>>
>>
>>
>>
>>--- Tuomo Syv�nper� <[EMAIL PROTECTED]>
>>wrote:
>>
>>>Hmm.. Nope. mapping.getInput() always returns the
>>>same thing regardless
>>>of the
>>>page from which we came from.
>>>Here's a bit more detailed explanation of what's
>>>going on:
>>>
>>>I have a page (action: listArticles.do) which
>>>
>>lists
>>
>>>all articles. On
>>>this page if you
>>>click on the edit - link,
>>>editArticle.do?action=Edit&id=123 action gets
>>>called.
>>>This action redirects the user to the
>>>editArticle.jsp page which has the
>>>edit form in it.
>>>Now if the user clicks on the title of the article
>>>on listArticles.do page,
>>>viewArticle.do?id=123 action gets called and shows
>>>the article. On this
>>>page we
>>>allso have an edit - link, which has the same url
>>>
>>as
>>
>>>the one on
>>>listArticles - page.
>>>
>>>The form submits its contents to saveArticle.do -
>>>action which does just
>>>that.. Saves
>>>the article using an EJB. After the save we should
>>>return to the calling
>>>page but at
>>>this point we no longer know which page was the
>>>original caller. And
>>>even if we did,
>>>we'd have no way of returning the request to the
>>>same state as it was
>>>before the
>>>editArticle - link was pressed (ie. the
>>>
>>viewArticle
>>
>>>had the article id
>>>as a parameter and
>>>if we forward control back to that viewArticle
>>>action, we really should
>>>have the id also).
>>>
>>>Now in saveArticle - action mapping.getInput()
>>>returns the
>>>editArticle.jsp form and
>>>not the page from which we came from..
>>>
>>>/tuomo
>>>
>>>Jon.Ridgway wrote:
>>>
>>>>Hi Tuomo,
>>>>
>>>>You could try using:
>>>>
>>>> mapping.getInput ()
>>>>
>>>>in your actions perform method.
>>>>
>>>>Jon.
>>>>
>>>>-----Original Message-----
>>>>From: Tuomo Syv�nper�
>>>>
>>>[mailto:[EMAIL PROTECTED]]
>>>
>>>>Sent: 12 December 2001 09:47
>>>>To: [EMAIL PROTECTED]
>>>>Subject: Alternate form action
>>>>
>>>>Hi,
>>>>How can I return to correct page after submitting
>>>>
>>a
>>
>>>form which can be
>>>
>>>>called from
>>>>several places..
>>>>What I have is a action&form which can be
>>>>
>>accessed
>>
>>>from many different
>>>
>>>>places.
>>>>ie. I have page A with a link:
>>>><html:link page="/editArticle.do?action=Edit"
>>>>
>>>paramId="id"
>>>
>>>>paramName="article"
>>>>
>>>paramProperty="id"><bean:message
>>>
>>>>key="global.edit"/></html:link>
>>>>and page B with the same link. When the user
>>>>
>>posts
>>
>>>the form, I'd like to
>>>
>>>>return to
>>>>the page from which we came from.
>>>>Problem is that I cannot tell what possible
>>>>
>>request
>>
>>>parameters or
>>>
>>>>attributes the original
>>>>page had gotten before the call to editArticle.
>>>>
>>>>Currently only solution I came up with was to set
>>>>
>>>attributes to servlet
>>>
>>>>context, which
>>>>contain the page to which we should return and
>>>>
>>all
>>
>>>it's request
>>>
>>>>parameters. And then when
>>>>I populate the editArticle form, I add all these
>>>>
>>>attributes as hidden
>>>
>>>>fields to the form.
>>>>After the form has been submitted the
>>>>
>>>SaveArticleAction saves the form
>>>
>>>>data and
>>>>redirects back to the original calling page..
>>>>
>>>>I hope my explanation was unclear enough :)
>>>>
>>>>Thx.
>>>>Tuomo
>>>>
>>>>
>>>>
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>>>>
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>>>>
>>>
>>>
>>>
>>>
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>>
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