I'm trying to write an update script which goes through a list of names in a flat file directory, checks them against and database and inserts the name if it does not exist but moves on if it does exist. The script appears to be doing the necessary looping and then claiming to insert the new names into the MySQL database but when I check the table later, it is empty. I'd be grateful for some advice on how to solve this, if it an issue with the code?

use strict;
use warnings;

use DBI;
use Email::Find;
use File::Find;


my $db_id;
my $dbh = DBI->connect("dsn", "user", "pword", {'RaiseError' => 1, 'Au
+toCommit' => 0}) or die "Connection Error: $DBI::errstr\n";

my $sthuser_insert = $dbh->prepare(q{INSERT INTO role(id,name,bw_name,
+ role) VALUES (?,?,?,?)}) or die "Couldn't prepare statement: " . $db
+h->errstr;

my $sthuser_check = $dbh->prepare(q{SELECT name FROM role  WHERE name 
+= ?}) or die "Couldn't prepare statement: " . $dbh->errstr;

my $dir = "c:\\dir";

get_index_id();

find (\&wanted, $dir);
$dbh->disconnect();

sub wanted 
{

   my @useroutput;
   return unless ($_ =~ /\.LIST/i);
      
   open (IN, "$_") or die "Can't open $_";
   @useroutput = <IN>;
   close(IN);
   chomp @useroutput;
         
    
   foreach my $person (@useroutput) {
      my $finder = Email::Find->new(\&email_found);
      $finder->find(\$person);
    }
      
}

sub get_index_id 
{
   my $db = DBI->connect("dsn", "user", "pword") or die "Connection Er
+ror: $DBI::errstr\n";
   my $sthlast_user;
   
   $sthlast_user=$db->prepare("SELECT MAX(id) FROM role");

   $sthlast_user->execute();
   ($db_id) = $sthlast_user->fetchrow_array();
   $sthlast_user->finish();
   $db->disconnect();
   print $db_id ." : found and closed\n";

}

sub create_random 
{
   
   my @chars = ( "A" .. "Z", "a" .. "z", 0 .. 9, qw(! @ $ ^ & *) );
   my $user_name = join("", @chars[ map { rand @chars } ( 1 .. 6 ) ]);
   return $user_name . $db_id++;
}

sub email_found 
{
   my($email, $orig_email) = @_;
   my $user = "user";
   my $founduser = 0;
   my $caluser = create_random(). "\@localhost.com";
         
   #need to check if user email exists. If not then add
   
   $sthuser_check->execute($orig_email);
   $founduser = $sthuser_check->fetchrow_array();
   $sthuser_check->finish();
    
   if (! $founduser){
      if ($orig_email !~ /[a-z, A-Z, 0-9]\@jiscmail.ac.uk/) {
         print "Inserting $orig_email \n";
         $sthuser_insert->execute(+$db_id, lc($orig_email), $caluser, 
+$user);
         print "Id: $db_id belongs to $orig_email with name $caluser a
+nd role is $user\n";
         $sthuser_insert->finish();
         next;
      } else {
         next;
      }
   }
   else
   {
      print "Found " . $founduser ."\n";
      next;
   } 
   return $orig_email;
}
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