http://qs321.pair.com?node_id=892037


in reply to How to get unselected radio_group() items after submitting form

You could add a Default button that would restore your radio group to default values when clicked.

print $query->defaults('Restore to Default');

[download]
  • Comment on Re: How to get unselected radio_group() items after submitting form
  • Download Code

Replies are listed 'Best First'.
Re^2: How to get unselected radio_group() items after submitting form
by slugger415 (Monk) on Mar 08, 2011 at 17:45 UTC
    Hm, not quite what I was looking for -- that removes the saved selections as well. To clarify, here's my initial view: 
    label 1: ( )c ( )r ( )t ( )s
label 2: ( )c ( )r ( )t ( )s
label 3: ( )c ( )r ( )t ( )s
label 4: ( )c ( )r ( )t ( )s
label 5: ( )c ( )r ( )t ( )s

    [download]
    A user makes selections on the first three: 
    label 1: (x)c ( )r ( )t ( )s
label 2: ( )c (x)r ( )t ( )s
label 3: ( )c (x)r ( )t ( )s
label 4: ( )c ( )r ( )t ( )s
label 5: ( )c ( )r ( )t ( )s

    [download]
    They click submit, and this appears: 
    label 1: (x)c ( )r ( )t ( )s
label 2: ( )c (x)r ( )t ( )s
label 3: ( )c (x)r ( )t ( )s
label 4: (x)c ( )r ( )t ( )s
label 5: (x)c ( )r ( )t ( )s

    [download]

    Note that 4 and 5 now have c selected.

    If I use print $query->defaults('Restore to Default');, it removes all selections from all rows.

    What I want it is to look like view #2 above, after clicking submit: 

    label 1: (x)c ( )r ( )t ( )s
label 2: ( )c (x)r ( )t ( )s
label 3: ( )c (x)r ( )t ( )s
label 4: ( )c ( )r ( )t ( )s
label 5: ( )c ( )r ( )t ( )s

    [download]
    thanks, Scott
[reply]
[d/l]
[select]

      Ah. Thanks for the sample. Also, thanks to Wind for narrowing the issue to the start_form/end_form because I was not able to replicate the problem before using <form>.

      Anyway, here is my new solution:
      I updated file name to $f to match original sample.

          if ($which_radio_button eq q{}) { 
      $query->delete("$f");
    }

      [download]

      see sample:

      #!/usr/bin/perl -w

use CGI;
use strict;

my $query = CGI->new;
print $query->header;

my $button = $query->param('submit');
my @fs = ('test1.txt', 'test2.txt', 'test3.txt', 'test4.txt');

if ($button eq "save") {
  foreach my $f (@fs) {
    my $which_radio_button = $query->param("$f");
    print "for $f you selected $which_radio_button<BR>\n";
    if ($which_radio_button eq q{}) {
      $query->delete($f);
    }
  }
  #$query->delete_all();
}

print "<html><body>";
print $query->start_form();
#print $query->defaults('Restore to Defaults');
foreach my $f (@fs) {
  print  $query->radio_group(-name=>$f,
                                 -value=>['c','r','t','s'],
                                 -default=>'-');
  print "<BR>";   
}
print $query->defaults('Return to default');
print $query->submit(-name=>'submit',-value=>'save');
  
print $query->end_form();
print "</body></html>";

      [download]

      If you add $query->delete($f); where $f is empty you will achieve your desired result, as shown in the above example.

[reply]
[d/l]
[select]

In Section Seekers of Perl Wisdom