Vision of controller future

blog_controller.rb

module App
  class PostController
    include DependencyHelper # Include #inject
    include TemplateEngineHelper # Includes #render
    include ResponseHelper # Includes #redirect

    inject_methods [:create_post, :post_model, :post_view, :validation_exception]

    def initialize(config)
      inject(config)
    end

    def create(request)
      post = (request[:post][:post] || {})
      render('post/new', :post => post, :errors => request[:errors])
    end

    def create_process(request)
      begin
        post_id = create_post.exec(:post => request[:post][:post])
        redirect("/post/#{post_id}").merge(:flash => "Post created!")
      rescue e => validation_exception
        create(request.merge(:errors => e.errors))
      end
    end

    def view(request)
      post = post_model.build(:post_id => request[:params][:post_id])
      render('post/view', post_view.build(:post => post))
    end
  end
end

BlogController.php

<?php

namespace App;

class PostController
{
    use DependencyHelper; // Includes ::inject()
    use TemplateEngineHelper; // Includes ::render()
    use ResponseHelper; // Includes ::redirect()
    use ArrayHelper; // Includes ::arr_get()
    
    private $post_model;
    private $post_view;
    private $create_post;
    
    public function __construct($config)
    {
        $this->inject($config);
    }
    
    public function create($request)
    {
        $post = $this->arr_get($request, 'post.post', []);
        $errors = $this->arr_get($request, 'errors', []);
        return $this->render('post/new', compact('post', 'errors'));
    }

    public function create_process($request)
    {
        try
        {
            $post = $this->arr_get($request, 'post.post');
            $post_id = $this->create_post->exec(compact('post'));
            return $this->redirect("/post/{$post_id}") + ['flash' => 'Post created!'];
        }
        catch (ValidationException $e)
        {
            return $this->create($request + ['errors' => $e->errors()]);
        }
    }

    public function view($request)
    {
        $post_id = $this->arr_get($request, 'params.id');
        $post = $this->post_model->build(compact('post_id'));
        return $this->render('post/view', $this->post_view->build(compact('post')));
    }
}