Re^2: CGI: which field has changed?

Yes, I was expecting to have to regenerate, but since there are only four fields plus two or three buttons, I wasn't overly concerned. I read about hidden fields in the CGI docs, but couldn't envisage an application. Thanks to you, I can now! :-)

Regards,

John Davies

Comment on Re^2: CGI: which field has changed?

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Re^3: CGI: which field has changed? by davies (Monsignor) on Mar 14, 2011 at 11:04 UTC
This actually proved harder than I thought. Partly it was because I did something stupid (CGI: retaining textarea contents in hidden field), but even with this fixed, things didn't work as I expected. My code is now working as I want, but I have the following two lines in my code: `print hidden(-name => "Old" . $param , -value => $value); param( -name => "Old" . $param , -value => $value);` [download] I can't find any documentation that indicates that the second line should be needed, but if I leave it out, the values don't get saved. I therefore report this in case anyone else runs into the same problem. Of course, if this should need only one line and I'm doing something else daft, I'd love to know. Regards, John Davies	[reply] [d/l]
Re^4: CGI: which field has changed? by Anonymous Monk on Mar 14, 2011 at 11:45 UTC
I'm guessing you're missing http://search.cpan.org/dist/CGI.pm/lib/CGI.pm#FORM_ELEMENTS -override A boolean, which, if true, forces the element to take on the value specified by -value, overriding the sticky behavior described earlier for the -nosticky pragma. `print hidden(-name => "Old" . $param , -value => $value, -override => 1);`	[reply] [d/l]
Re^5: CGI: which field has changed? by davies (Monsignor) on Mar 14, 2011 at 12:37 UTC
Indeed I was missing it. Thank you kindly. Regards, John Davies	[reply]