Notify post author about new comments

Author: voronkovich

app/AppKernel.php

@@ -22,8 +22,7 @@ public function registerBundles()
             new CodeExplorerBundle\CodeExplorerBundle(),
             new AppBundle\AppBundle(),
             new Doctrine\Bundle\FixturesBundle\DoctrineFixturesBundle(), // used for initial population of non-SQLite databases in production envs
-            // uncomment the following line if your application sends emails
-            // new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
+            new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
         ];
 
         // Some bundles are only used while developing the application or during

app/Resources/translations/messages.en.xlf

@@ -276,6 +276,14 @@
                 <source>post.deleted_successfully</source>
                 <target>Post deleted successfully!</target>
             </trans-unit>
+            <trans-unit id="post.recieved_comment">
+                <source>post.recieved_comment</source>
+                <target>Your post recieved a comment!</target>
+            </trans-unit>
+            <trans-unit id="post.recieved_comment_message">
+                <source>post.recieved_comment_message</source>
+                <target><![CDATA[Your post "%title%" has recieved a new comment. You can read the comment by following this <a href="%link%">link</a>!]]></target>
+            </trans-unit>
 
             <trans-unit id="help.app_description">
                 <source>help.app_description</source>

app/Resources/views/blog/post_show.html.twig

@@ -30,6 +30,7 @@
 
     {% for comment in post.comments %}
         <div class="row post-comment">
+            <a name="comment_{{ comment.id }}"></a>
             <h4 class="col-sm-3">
                 <strong>{{ comment.authorEmail }}</strong> {{ 'post.commented_on'|trans }}
                 {# it's not mandatory to set the timezone in localizeddate(). This is done to

app/config/config.yml

@@ -83,9 +83,9 @@ doctrine:
 # stores options that change the application behavior and parameters.yml
 # stores options that change from one server to another
 #
-# swiftmailer:
-#     transport: "%mailer_transport%"
-#     host:      "%mailer_host%"
-#     username:  "%mailer_user%"
-#     password:  "%mailer_password%"
-#     spool:     { type: memory }
+swiftmailer:
+    transport: "%mailer_transport%"
+    host:      "%mailer_host%"
+    username:  "%mailer_user%"
+    password:  "%mailer_password%"
+    spool:     { type: memory }

app/config/config_dev.yml

@@ -29,5 +29,5 @@ monolog:
         #    type:   chromephp
         #    level:  info
 
-#swiftmailer:
-#    delivery_address: me@example.com
+swiftmailer:
+    disable_delivery:  true

app/config/parameters.yml.dist

@@ -31,12 +31,9 @@ parameters:
     # $ php bin/console doctrine:schema:create
     # $ php bin/console doctrine:fixtures:load
 
-    # Uncomment these parameters if your application sends emails:
-    #
-    # mailer_transport:  smtp
-    # mailer_host:       127.0.0.1
-    # mailer_user:       ~
-    # mailer_password:   ~
-    #
     # If you don't use a real mail server, you can send emails via your Gmail account.
     # see http://symfony.com/doc/current/cookbook/email/gmail.html
+    mailer_transport:  smtp
+    mailer_host:       127.0.0.1
+    mailer_user:       ~
+    mailer_password:   ~

src/AppBundle/Controller/BlogController.php

@@ -22,6 +22,7 @@
 use Symfony\Bundle\FrameworkBundle\Controller\Controller;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 
 /**
  * Controller used to manage blog contents in the public part of the site.
@@ -96,6 +97,8 @@ public function commentNewAction(Request $request, Post $post)
             $entityManager->persist($comment);
             $entityManager->flush();
 
+            $this->notifyAuthorAboutNewComment($comment);
+
             return $this->redirectToRoute('blog_post', ['slug' => $post->getSlug()]);
         }
 
@@ -105,6 +108,33 @@ public function commentNewAction(Request $request, Post $post)
         ]);
     }
 
+    private function notifyAuthorAboutNewComment(Comment $comment)
+    {
+        $post = $comment->getPost();
+
+        $linkToPost = $this->generateUrl('blog_post', ['slug' => $post->getSlug()], UrlGeneratorInterface::ABSOLUTE_URL);
+
+        $translator = $this->get('translator');
+
+        $subject = $translator->trans('post.recieved_comment');
+        $body = $translator->trans('post.recieved_comment_message', [
+            '%title%' => $post->getTitle(),
+            '%link%' => $linkToPost.'#comment_'.$comment->getId(),
+        ]);
+
+        // See http://symfony.com/doc/current/email.html#sending-emails
+        $message = \Swift_Message::newInstance()
+            ->setSubject($subject)
+            ->setTo($post->getAuthorEmail())
+            ->setFrom('symfony-demo@localhost')
+            ->setBody($body, 'text/html')
+        ;
+
+        // You can view a sent email in the debug toolbar
+        // See http://symfony.com/doc/current/email/dev_environment.html#viewing-from-the-web-debug-toolbar
+        $this->get('mailer')->send($message);
+    }
+
     /**
      * This controller is called directly via the render() function in the
      * blog/post_show.html.twig template. That's why it's not needed to define