Re: [cgiapp] Validation constraint

[Jason Purdy <suppressed>]

Robert Hicks wrote:
> I am trying out the ValidateRM plugin. I have it working with one form 
> which is cool.
>
> The second form I have deals with hours worked on a project. The hours 
> are put in by increments of .25 (i.e. it could be .50 or 7.75). I know I 
> can check this with the mod ( % ) operator but I haven't a clue on how 
> to make that a constraint for the "total_hours" field to make sure the 
> user is putting in a valid number.

My knee-jerk reaction is a customized subroutine to check that:

my $validation_profile = {
    'constraints' => {
      total_hours => {
        constraint => 'is_quarter_hour'
      },
    },
  };

sub is_quarter_hour {
  my $result = 0;
  my $data = shift;

  if ( $data % .25 ) {
    $result = 1;
  }

  return $result;
}

(Note: This is untested/unoptimized proof-of-concept code)

I see there's a new version of DFV that has a constraint_methods 
property that may also do this trick, but I'm not up-to-date on that 
technique.

BTW, There's a mailing list just for DFV:
http://lists.sourceforge.net/lists/listinfo/cascade-dataform

- Jason

---------------------------------------------------------------------
Web Archive:  http://www.mail-archive.com/suppressed/
             http://marc.theaimsgroup.com/?l=cgiapp&r=1&w=2
To unsubscribe, e-mail: suppressed
For additional commands, e-mail: suppressed