I'm just beginning to learn how to use the Dancer2 framework and am having problems displaying the results of a $sth->fetchall_hashref DBI querry.

I started with the example code from the "Our first route handler" section in the Dancer2::Tutorial documentation and adjusted it slightly to match my requirements.

Route Handler:

get '/partners' => sub {
    my $dbh = get_db_connection();
    my $sth = $dbh->prepare("SELECT TPID,
                                    TPCOMPNAME,
                                    TPTYPE
                            FROM TRADINGPARTNERPROFILE
                            ORDER BY TPID
                            LIMIT 2");
    $sth->execute;
    my $partners = $sth->fetchall_hashref('TPID');
    my $dump = Dumper($partners);
    $dbh->disconnect;

    template 'show_partners.tt', {
                'dumper'   => $dump,
                'partners' => $partners,
    };

};\
[download]

Template:

<div>
  <pre><% dumper %></pre>
  <% FOREACH partner IN partners.keys %>
    Partner: <% partners.$partner.TPCOMPNAME %> <% partners.$partner.T
+PTYPE %><br>
  <% END %>
</div>
[download]

Resulting html output

<div>
  <pre>$VAR1 = {
          'AB DISTRIBUTING INC.' => {
                                      'TPTYPE' => '1',
                                      'TPID' => 'AB DISTRIBUTING INC.'
+,
                                      'TPCOMPNAME' => 'AB Distributing
+ Inc.'
                                    },
          'A.T. CROSS ' => {
                             'TPTYPE' => '1',
                             'TPID' => 'A.T. CROSS ',
                             'TPCOMPNAME' => 'A.T. Cross '
                           }
        };
</pre>
  
    Partner:  <br>
  
</div>
[download]

What am I doing wrong which is preventing the desired output in the loop?

Edit:
One factor which may be important is that I'm testing this on Win7 perl v5.16.1 and will be deploying the app on a CentOS system which will probably be running perl v5.18.2

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