Controller::ACCEPT_CONTEXT.pm

package Example::Controller::Todos;

use Moose;
use MooseX::MethodAttributes;
use Example::Syntax;
use CatalystX::Controller::ACCEPT_CONTEXT::DependencyInjectionImports;
use HTTP::Status 'HTTP_OK', 'HTTP_BAD_REQUEST';
use Example::Types 'TodoResultset', 'TodoResult';

extends 'CatalystX::Controller::ACCEPT_CONTEXT';

has list => (is=>'ro', isa=>TodoResultset, required=>1, depends => 'User.todos' ); # Same as (..., lazy=>1, default=>sub { shift->c->user->todos } )
has todo => (is=>'rw', isa=>TodoResult);

sub root :Chained(/auth) PathPart('todos') CaptureArgs(0)  ($self, $c) { }

  sub collection :Chained(root) CaptureArgs(0) View(Todos) ($self, $c) {
    $self->todo($self->list->new_result(+{status=>'active'}));
  }
    sub list :GET Chained(collection) PathPart('') Args(0) ($self, $c) { return $c->res->code(HTTP_OK) }

    sub create :POST Chained(collection) PathPart('') Args(0) ($self, $c) {
      my %params = $c->structured_body(
        ['todo'], 'title', 
      )->to_hash;
      $self->todo->set_columns_recursively(\%params)->insert;

      return $self->todo->valid ?
        $c->redirect_to_action('list') :
          $c->res->code(HTTP_BAD_REQUEST);
    }

  sub item :Chained(root) CaptureArgs(1) View(Todo) ($self, $c) {
    $self->todo($self->list->find($id) || return $c->detach_error(404));
  }

    sub show :GET Chained(item) Args(0)  ($self, $c) { return $c->res->code(HTTP_OK) }

    sub update :PATCH Chained(item) Args(0) ($self, $c) {
      my %params = $c->structured_body(
        ['todo'], 'title', 'status'
      )->to_hash;
      $self->todo->set_columns_recursively(\%params)->update;

      return $self->todo->valid ?
        $c->redirect_to_action('show') :
          $c->res->code(HTTP_BAD_REQUEST);
    }

# delegating the action render to a later action in the chain
# allows you to centralize modifying the view before actually
# sending it.

sub end :Action Does(ViewResponse) ($self, $c) { }

1;

package Example::View::Todos;

use Moose;
use Example::Syntax;
use CatalystX::View::PerRequestDependencyInjection;
use Example::Types 'TodoResultset', 'TodoResult';

extends 'CatalystX::View::PerRequestBase';

has 'list' => (
  is => 'ro',
  isa => TodoResultset,
  required => 1,
  depends_attr => 'Controller', # Same as (..., lazy => 1, default => sub {shift->ctx->controller->list} ) 
);

has 'todo' => (
  is => 'ro',
  isa => TodoResult,
  required => 1,
  depends_attr => 'Controller',
);

sub render ($self, $c) { ... }

1;

package Example::View::Todo;

use Moose;
use Example::Syntax;
use CatalystX::View::PerRequest::DependencyInjectionImports;
use Example::Types 'TodoResult';

extends 'CatalystX::View::PerRequestBase';

has 'todo' => (
  is => 'ro',
  isa => TodoResult,
  required => 1,
  depends_attr => 'Controller',
);

sub render ($self, $c) { ... }

1;