CGI_lite and POST Parameters from hidden fields

Hello Forum,

i`ve wrote a script for browsing over branches. the path parameters i`ve send
as GET URL attachment on the link. The problem was, that the CGI Script calls itself serveral times to browse deeper into branches and lost after first click those DCT parameters


$form_name             = $cgi->{'form'}{'iw_form_name'};
$element_name          = $cgi->{'form'}{'iw_callback_var'};

Because GET URL String is delimited to 255 characters, i`ve wrote the parameters into hidden fields in the CGI Script.
[html]

[/html]
At first call out of the DCT the CGI has filled all hidden fields with the right content. After clicking one link a Javascript submit function submitting the form
*** Javascript ***
[html]
function submitForm() {
document.browsing.submit();
return false;
}
[/html]

*** form tag ***
[html]

[/html]
*** links for browsing ***
[html]
default

[/html]
After submit i dont get the parameters from the hidden fields


$cgi->parse_data();
my $page = new CGI;

my $element    = $page->param('element_name_h');
my $form  = $page->param('form_name_h');

I m using TeamSite::CGI_lite to do this. May someone give me a hint why i cant read the hidden field values after submit?

Thanks and Regards
Sascha

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Comments

ISCBorisB

May someone give me a hint why i cant read the hidden field values after submit?

That's because you are parsing two different Forms, one for the first request and totally different for all subsequent ones.

Your very first CGI Callout request is posted by the FormsPublisher on your behalf. DC Form of the current DCR is posted,
Form's name is passed as a value of 'iw_form_name' Form's hidden variable.

From the bits and pieces you've disclosed it looks like all subsequent requests are posted by you to *self*, eg to the same
CGI code. If that's the case, you are posting your own Form named 'browsing', nothing else. If you want to propagate some
Data back and forth, declare and populate hidden 'browsing' Form elements (names at your discretion) and parse them.

Comprende?

Adam Stoller

To follow-up with Borris' comments - and the fact that you indicated you are using TeamSite::CGI_lite - you should probably use TeamSite::CGI_lite's

get_implicit_data_tunnel_html

method (read the perldoc for more information)

Note: if your form is getting submitted - this will work. If you're hyperlinking back to your form without going through the actual form submission process, I do not believe this will work.

Sascha

Thanks for you Answer!
The hidden input fields are in the form tag named "browsing"
For testing i added an submit button. But i cant still parse the content of
the hidden fields. After dumping the CGI object into error.log, the parameters
are always empty


$VAR1 = bless( {
                 '.parameters' => [],
                 '.charset' => 'ISO-8859-1',
                 '.fieldnames' => {},
                 'escape' => 1
               }, 'CGI' );

I ve changed the naming of the hidden fields for the DC params as you mentioned and it works. But other hidden field content dont get posted.

A URL with GET Parameters (?bla&blo&blub) works proper, but post doesnt.

???

Here the complete form code before submit
[html]

Datei

...default

Dateiname:

Abbrechen

[/html]

vp_path is manually set by myself and cant be read after submitting the form.
Do i use the wrong CGI modul, or whats the matter?

Thanks again and Regards
Sascha

ISCBorisB

vp_path is manually set by myself and cant be read after submitting the form.
Do i use the wrong CGI modul, or whats the matter?

Post your CGI code and relevant Log fragment.
Without code nobody can tell if there is anything wrong with it!

Sascha

I `ve found the solution.


my $cgi = TeamSite::CGI_lite->new();
$cgi->parse_data();

parses all input fields in the form tag.
I ve used the whole time this


my $page = new CGI;
my $form  = $page->param('form_name_h');

Thanks for support and regards
Sascha