Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

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); };

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://557101]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others lurking in the Monastery: (7)
As of 2016-09-25 08:37 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Extraterrestrials haven't visited the Earth yet because:







    Results (468 votes). Check out past polls.