Add the stub of a download model

This will hold the find_download_url query as we move it from the
Catalyst model which is aparently too bloated to want to save directly.

This will be the paradigm for new models.

Author: jberger

lib/MetaCPAN/API/Model/Download.pm

@@ -0,0 +1,10 @@
+package MetaCPAN::API::Model::Download;
+
+use Mojo::Base -base;
+
+use Carp ();
+
+has es => sub { Carp::croak 'es is required' };
+
+1;
+

lib/MetaCPAN/API/Plugin/Model.pm

@@ -2,12 +2,22 @@ package MetaCPAN::API::Plugin::Model;
 
 use Mojo::Base 'Mojolicious::Plugin';
 
-use Carp                    ();
+use Carp ();
+
+# Models from the catalyst app
 use MetaCPAN::Model::Search ();
 use MetaCPAN::Model::User   ();
 
+# New models
+use MetaCPAN::API::Model::Download ();
+
 has app => sub { Carp::croak 'app is required' }, weak => 1;
 
+has download => sub {
+    my $self = shift;
+    return MetaCPAN::API::Model::Download->new( es => $self->app->es );
+};
+
 has search => sub {
     my $self = shift;
     return MetaCPAN::Model::Search->new(
@@ -26,8 +36,9 @@ sub register {
     $plugin->app($app);
 
     # cached models
-    $app->helper( 'model.search' => sub { $plugin->search } );
-    $app->helper( 'model.user'   => sub { $plugin->user } );
+    $app->helper( 'model.download' => sub { $plugin->download } );
+    $app->helper( 'model.search'   => sub { $plugin->search } );
+    $app->helper( 'model.user'     => sub { $plugin->user } );
 }
 
 1;