Make the application modular to have a "main" and "backend" part.

app/config/app.yml

@@ -1,9 +1,10 @@
 
 application:
+  modulesDir     : ../app/modules/
   controllersDir : ../app/controllers/
   modelsDir      : ../app/models/
   migrationsDir  : ../app/migrations/
-  viewsDir       : ../app/views/
+  viewsDir       : ../app/views/_common/
   templateDir    : ../app/templates/
   listenersDir   : ../app/listeners/
   libraryDir     : ../app/library/

app/config/routes.yml

@@ -56,3 +56,8 @@ router:
       path:
         controller: api
         action: activationlink
+
+    # Backend
+    backend-home:
+      pattern: '/admin'
+      path: backend::user::index

app/controllers/backend/UserController.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Controller\Backend;
+
+class UserController extends \Phalcon\Mvc\Controller
+{
+    public function indexAction()
+    {
+    }
+}

app/library/Bootstrap.php

@@ -9,12 +9,19 @@ use Phalcon\Mvc\Application;
 
 class Bootstrap extends Injectable
 {
+    /**
+     * @var Application
+     */
+    protected $_app;
+
     public function __construct(DiInterface $di = null)
     {
         if ($di === null) {
             $di = new DiDefault();
         }
         $this->setDI($di);
+
+        $this->_app = new Application();
     }
 
     /**
@@ -34,6 +41,14 @@ class Bootstrap extends Injectable
             $di->get('debugger')->listen(true, true);
         }
 
+        // Modules
+        $this->_app->registerModules([
+            'main' => [ 'className' => 'App\Module\Main' ],
+            'backend' => [ 'className' => 'App\Module\Backend' ],
+        ]);
+
+        $this->_app->setDefaultModule('main');
+
         return $this;
     }
 
@@ -44,7 +59,7 @@ class Bootstrap extends Injectable
      */
     public function run()
     {
-        $app = new Application($this->getDI());
-        return $app->handle()->getContent();
+        $this->_app->setDI($this->getDI());
+        return $this->_app->handle()->getContent();
     }
 }

app/library/Services.php

@@ -99,6 +99,7 @@ class Services extends DiDefault
         $loader->registerNamespaces(array(
             'App\Controller'    => $config->application->controllersDir,
             'App\Listener'      => $config->application->listenersDir,
+            'App\Module'        => $config->application->modulesDir,
             'App\Model'         => $config->application->modelsDir,
             'App\Form'          => $config->application->formsDir,
             'Httpcb'            => $config->application->libraryDir,
@@ -222,7 +223,7 @@ class Services extends DiDefault
 
         $view = new View();
 
-        $view->setViewsDir($config->application->viewsDir);
+        $view->setViewsDir([ $config->application->viewsDir ]);
         $view->setLayoutsDir('_layouts/');
         $view->setPartialsDir('_partials/');
 

app/modules/Backend.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Module;
+
+class Backend extends Base
+{
+    protected $_controllerPath = APP_PATH . '/app/controllers/backend';
+
+    protected $_controllerNamespace = 'App\Controller\Backend';
+
+    protected $_viewDir = '../app/views/backend/';
+}

app/modules/Base.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Module;
+
+use Phalcon\Loader,
+    Phalcon\DiInterface,
+    Phalcon\Mvc\Dispatcher,
+    Phalcon\Mvc\ModuleDefinitionInterface;
+
+abstract class Base implements ModuleDefinitionInterface
+{
+    protected $_controllerPath;
+
+    protected $_controllerNamespace;
+
+    protected $_viewDir;
+
+    /**
+     * Register a specific autoloader for the module
+     */
+    public function registerAutoloaders(DiInterface $di = null)
+    {
+        $loader = new Loader();
+
+        $loader->registerNamespaces([
+            $this->_controllerNamespace => $this->_controllerPath,
+        ]);
+
+        $loader->register();
+    }
+
+    /**
+     * Register specific services for the module
+     */
+    public function registerServices(DiInterface $di)
+    {
+        $dispatcher = $di->get('dispatcher');
+
+        $dispatcher->setDefaultNamespace($this->_controllerNamespace);
+
+        $di->get('view')->setViewsDir(array_merge(
+            [ $this->_viewDir ],
+            (array) $di->get('view')->getViewsDir()
+        ));
+    }
+}
+

app/modules/Main.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Module;
+
+class Main extends Base
+{
+    protected $_controllerPath = APP_PATH . '/app/controllers';
+
+    protected $_controllerNamespace = 'App\Controller';
+
+    protected $_viewDir = '../app/views/main/';
+}

app/views/_common/layout.volt

@@ -12,7 +12,7 @@
 
         <header class="head-section">
             <div class="top-section">
-                {% include "_templates/navigation.volt" %}
+                {% include "_components/navigation.volt" %}
             </div>
 
             {% block masthead %}{% endblock %}
@@ -20,14 +20,14 @@
 
         <main class="content-section">
 
-            {% include "_templates/flash.volt" %}
+            {% include "_components/flash.volt" %}
 
             {{ content() }}
 
         </main>
 
         <div class="footer-section">
-            {% include "_templates/footer.volt" %}
+            {% include "_components/footer.volt" %}
         </div>
 
         {{ assets.outputJs() }}

app/views/backend/user/index.volt

@@ -0,0 +1,2 @@
+
+<h1>Backend</h1>