CGI form repost from browser--how to prevent?
dsavitsk
dsavitsk at e-coli.net
Tue Dec 11 14:34:28 EST 2001
how about using JavaScript?
make the submit for your form something like
<a href="JavaScript:Submit_My_Form();">Click Here to Submit.</a>
add an element like this to the form
<input name="have_they" type="hidden" value="no">
then add a function like this to the Head
<Script Language = "JavaScript" type="text/javascript">
function Submit_My_Form();
if (document.My_Form.have_they.value == "no") {
document.My_Form.submit();
document.My_Form.have_they.value = "yes";
}
else {
window.alert = "Do not press that again.";
}
}
</Script>
something like that should work ... i think?
"Chris" <bit_bucket5 at hotmail.com> wrote in message
news:fa7108b0.0112111051.3a9585c5 at posting.google.com...
> I'm writing a Python cgi script that does some inserts into a mysql
> database based on data in an html form submitted by a user. Is there
> any way to prevent the browser from reposting the data from the form
> when the user hits refresh in the browser after they have submitted
> the form? When this happens, the script receives the same cgi form
> data and performs the same inserts on the database. I think maybe
> this can be prevented by storing some state info with cookies?? Not
> sure (have never used cookies). Any ideas on an easy way to prevent
> this?
>
> Many Thanks.
>
> -Chris
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