I am trying to dynamically build a Data::FormValidator profile. A short profile would look like this,

my $profile = {
  required => qw[my_name],
  constraint_methods => {
    my_name => sub {
      my $dfv = shift;
      my $var = shift;

      return if ($var !~ /\d+/);
      return 1;
    }
  }
}

[download]

However, I want take a string and make it into closure in my profile. I am missing something however. If I do this,

$code =<<'END'
    my $dfv = shift;
    my $var = shift;

    return if ($var !~ /\d+/);
    return 1;
END
;
my $profile->{constraint_methods}{my_name} = sub { eval $code }; # Doe
+s not work

[download]

Update: Made the $code not interpolate.

Update No 2: The code above is not working, in that the DFV object is not being returned first to @_. 

my $profile->{constraint_methods}{my_name} = sub { use Data::Dump qw(d
+ump); warn "PARAMS " . dump(@_) . "\n"; eval $code }; # Does not work

[download]

This will dump the DFV object from @_. It seems the eval does not get the whole @_ for some reason. I don't understand why

Update No 3: OK, I found the answer and it had nothing to do with eval, which was working but rather with the validation. There is also a field_filter option used, it does not pass the DFV object, I assumed that it did, I would alter the field value, which screwed up the validation and the constraint code was not run, which is where I thought I was having problems.

Thanks for the help

In reply to Dynamically Creating a Code reference by Herkum

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