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Re: Pass the Subroutine Name in form action value

by Corion (Pope)
on Jun 23, 2006 at 07:16 UTC ( #557101=note: print w/replies, xml ) Need Help??


in reply to Pass the Subroutine Name in form action value

You can, but you don't want that, because it makes it too easy to use other subroutines in your script. You want to use a table mapping the names to your subroutines like this ("dispatch table"):

sub report { print "Reporting"; }; sub add { print "Adding"; }; sub frobnicate { print "Frobnicating"; }; my %allowed_actions = ( report => \&report, add => \&add, frobnicate => \&frobnicate, ... ); sub handle_form { my $query = CGI->new(); my $default_action = 'report'; my $action = $query->param('action') || $default_action; # Sanity check if (not exists $allowed_actions{$action}) { warn "Unknown action >>$action<< attempted. Forcing to '$defau +lt_action' instead."; $action = $default_action; }; my $code = $allowed_actions{$action}; # Now, call the code $code->($query); };

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