Looks like my explanation is too long or too bad. The simple idea is in page step 1, after the
<form action=/step/2 method=post>...</form> submitted, I want the browser show something http://www.example.com/step/1/error, instead of http://www.example.com/step/2, if there is a need for user to correct the data submitted. It might be accomplished by using one of the approaches outlined below, but I was wondering if there's other way that can save the overhead of the write/read or resend the data, and the re-process. Probably not much we can do if the URL displayed in the browser's address/location bar depends only on the action value of the form submitted, not based on the server response? Harry ----- Original Message ----- From: "Harry Zhu" <[EMAIL PROTECTED]> To: "mod_perl list" <[EMAIL PROTECTED]> Sent: Thursday, August 08, 2002 4:22 PM Subject: Can I change the browser's address/location? > Suppose I have a generic content handler to handle requst > /step/1, /step/2, ..., /step/n > > <Location /step> > SetHandler perl-script > PerlHandler MyHandler > > </Location> > > #MyHandler.pm > package MyHandler; > sub handler { > my $r=shift; > my $step = substr($r->path_info(),1); > > #do something before fetch the content > > #fetch content: usually include a form that will assign action > /step/($step+1) > > } > > So if everything goes well, the user will follow through from step 1, step > 2, until fnish. > Now if in the "#do something ..." part, something is wrong, it will usually > require user go back to the same step, for example, to fill the form again. > The way my old cgi script does is just generate the form with prefilled > value plus some error message indicate what's wrong. It works ok but the > browser location will show /step/($step+1) while it actually is /step/$step. > Now that I am working it on mod-perl I thought I should be able to do > something about it. I briefly browsed the 2 mod-perl books (eagle, > cookbook), and could not found a simple solution yet (or I missed it?). I > was think using one of the folowing might work:z > 1) save the request data in a temp file and redirect or http-refresh to > /step/$step?$session_id or /step/$step/error?$session_id > Remember the content is dynamic and depend on the input form data, so simple > redirect may not work. > Looks like Apache will not post the form data when redirect with Location? > > 2) print a short form with hidden data and assign action=/step/$step/error > then submit right away (onload=form.submit()?) > > Does anybody have a simple solution, e.g. without redirect? Is it possible > to change the URI showing in the browser's address/location bar? > > I would appreciated if somebody can pointer me to the right direction. > > Harry > >
