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Apache::MVC directly, but it is recommended that you use
L<Maypole::Application>.

=head1 INSTALLATION

Create a driver module like the one illustrated in L<Maypole::Application>.

Put the following in your Apache config:

    <Location /beer>
        SetHandler perl-script
        PerlHandler BeerDB
    </Location>

Copy the templates found in F<templates/factory> into the F<beer/factory>
directory off the web root. When the designers get back to you with custom
templates, they are to go in F<beer/custom>. If you need to override templates
on a database-table-by-table basis, put the new template in F<beer/I<table>>.

This will automatically give you C<add>, C<edit>, C<list>, C<view> and C<delete>
commands; for instance, to see a list of breweries, go to

    http://your.site/beer/brewery/list

For more information about how the system works and how to extend it,
see L<Maypole>.

=head1 Implementation

This class overrides a set of methods in the base Maypole class to provide its
functionality. See L<Maypole> for these:

=over

=item get_request

=cut

sub get_request {
    my ($self, $r) = @_;
    my $request_options = $self->config->request_options || {};
    my $ar;
    if ($MODPERL2) {
      $ar = eval {require Apache2::Request} ? Apache2::Request->new($r,%{$request_options}) : $r;
    } else {
      if (keys %$request_options) {
	$ar = Apache::Request->new($r,%{$request_options});
      } else {
	$ar = Apache::Request->instance($r);
      }
    }
    $self->ar($ar);
}

=item warn

=cut

sub warn {
  my ($self,@args) = @_;
  my ($package, $line) = (caller)[0,2];
  my $ar = $self->parent ? $self->parent->{ar} : $self->{ar};
  if ( $args[0] and ref $self ) {
    $ar->warn("[$package line $line] ", @args) ;
  } else {
    print "warn called by ", caller, " with ", @_, "\n";
  }
  return;
}


=item parse_location

=cut

sub parse_location {
    my $self = shift;

    # Reconstruct the request headers
    $self->headers_in(Maypole::Headers->new);

    my %headers;
    if ($MODPERL2) { %headers = %{$self->ar->headers_in};
    } else { %headers = $self->ar->headers_in; }
    for (keys %headers) {
        $self->headers_in->set($_, $headers{$_});
    }

    $self->preprocess_location();

    my $path = $self->ar->uri;
    my $base  = URI->new($self->config->uri_base);
    my $loc = $base->path;

    {
        no warnings 'uninitialized';
        $path .= '/' if $path eq $loc;
	if ($loc =~ /\/$/) {
	  $path =~ s/^($loc)?//;
	} else {
	  $path =~ s/^($loc)?\///;
	}
    }

    $self->path($path);
    $self->parse_path;
    $self->parse_args;
}

=item parse_args

=cut

sub parse_args {
    my $self = shift;
    $self->params( { $self->_mod_perl_args( $self->ar ) } );
    $self->query( $self->params );
}

=item redirect_request