use Moose;
    use DBIx::DataModel;
    use DBI;

    our $dbh;
    our $schema;

    sub BUILD {
        $dbh = get_dbh();
        my %dbh_options;
        $dbh_options{last_insert_id} = \&get_last_insert_id;
        AppGen::Schema->dbh($dbh, %dbh_options);
        $schema = AppGen::Schema->singleton();
    }

    sub get_dbh {
        my $dbi_dsn = 'dbi:ODBC:Driver={SQL Server Native Client 10.0};Server=localhost,1433;Database=app_gen;';
        my $user = 'app_gen';
        my $password = 'app_gen';
        my $dbh = DBI->connect($dbi_dsn, $user, $password);
        $dbh->{RaiseError} = 1;             #   Required for DBIx::DataModel
        return $dbh;
    }

    sub get_last_insert_id() {
        my ($dbh, $table, $col) = @_;
        my $sql = 'SELECT @@IDENTITY';
        my @row_ary  = $dbh->selectrow_array($sql);
        my $id = $row_ary[0];
        return $id;
    }

    sub save($entity) {
        my $table_name = 'Foo';
        my $table = $schema->table($table_name);
        my $id = $table->insert({FOO => $entity->{FOO}, FOO_REF => $entity->{FOO_REF}});
        print "Inserted ID: $id\n";
    }