lib/Catalyst/View/Component/SubInclude/ESI.pm

   1 package Catalyst::View::Component::SubInclude::ESI;
   2 use Moose;
   3 use namespace::clean -except => 'meta';
   4
   5 =head1 NAME
   6
   7 Catalyst::View::Component::SubInclude::ESI - Edge Side Includes (ESI) plugin for C::V::Component::SubInclude
   8
   9 =head1 VERSION
  10
  11 Version 0.07_03
  12
  13 =cut
  14
  15 our $VERSION = '0.07_03';
  16 $VERSION = eval $VERSION;
  17
  18 =head1 SYNOPSIS
  19
  20 In your view class:
  21
  22   package MyApp::View::TT;
  23   use Moose;
  24
  25   extends 'Catalyst::View::TT';
  26   with 'Catalyst::View::Component::SubInclude';
  27
  28   __PACKAGE__->config( subinclude_plugin => 'ESI' );
  29
  30 Then, somewhere in your templates:
  31
  32   [% subinclude('/my/widget') %]
  33
  34 =head1 DESCRIPTION
  35
  36 C<Catalyst::View::Component::SubInclude::ESI> renders C<subinclude> calls as
  37 Edge Side Includes (ESI) include directives. This is a feature implemented by
  38 Varnish (L<http://varnish.projects.linpro.no/>) which allows cache-efficient
  39 uses of includes.
  40
  41 =head1 METHODS
  42
  43 =head2 C<generate_subinclude( $c, $path, @args )>
  44
  45 Note that C<$path> should be the private action path - translation to the public
  46 path is handled internally. After translation, this will roughly translate to
  47 the following code:
  48
  49   my $url = $c->uri_for( $translated_path, @args )->path_query;
  50   return '<!--esi <esi:include src="$url" /> -->';
  51
  52 Notice that the stash will always be empty. This behavior could be configurable
  53 in the future through an additional switch - for now, this behavior guarantees a
  54 common interface for plugins.
  55
  56 =cut
  57
  58 sub generate_subinclude {
  59     my ($self, $c, $path, @params) = @_;
  60
  61     my $uri = $c->uri_for_action( $path, @params );
  62
  63     return '<!--esi <esi:include src="' . $uri->path_query . '" /> -->';
  64 }
  65
  66 =head1 SEE ALSO
  67
  68 L<Catalyst::View::Component::SubInclude|Catalyst::View::Component::SubInclude>,
  69 L<http://www.catalystframework.org/calendar/2008/17>,
  70 L<http://varnish.projects.linpro.no/>
  71
  72 =head1 AUTHOR
  73
  74 Nilson Santos Figueiredo Junior, C<< <nilsonsfj at cpan.org> >>
  75
  76 =head1 SPONSORSHIP
  77
  78 Development sponsored by Ionzero LLC L<http://www.ionzero.com/>.
  79
  80 =head1 COPYRIGHT & LICENSE
  81
  82 Copyright (C) 2009 Nilson Santos Figueiredo Junior.
  83
  84 Copyright (C) 2009 Ionzero LLC.
  85
  86 This program is free software; you can redistribute it and/or modify it
  87 under the same terms as Perl itself.
  88
  89 =cut
  90
  91 __PACKAGE__->meta->make_immutable;
  92 1;