Closed threads should not accept comments

EventListener/ClosedThreadListener.php

@@ -0,0 +1,45 @@
+<?php
+
+/**
+ * This file is part of the FOSCommentBundle package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace FOS\CommentBundle\EventListener;
+
+use FOS\CommentBundle\Events;
+use FOS\CommentBundle\Event\CommentEvent;
+use FOS\CommentBundle\Model\CommentInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * Blames a comment using Symfony2 security component
+ *
+ * @author Thibault Duplessis <thibault.duplessis@gmail.com>
+ */
+class ClosedThreadListener implements EventSubscriberInterface
+{
+    /**
+     * Disallows comments in a closed thread.
+     *
+     * @param \FOS\CommentBundle\Event\CommentEvent $event
+     */
+    public function onCommentPersist(CommentEvent $event)
+    {
+        $comment = $event->getComment();
+        $thread = $comment->getThread();
+
+        if (!$thread->isCommentable()) {
+            throw new \LogicException('Cannot add comment to a closed thread');
+        }
+    }
+
+    static public function getSubscribedEvents()
+    {
+        return array(Events::COMMENT_PRE_PERSIST => 'onCommentPersist');
+    }
+}

Model/CommentManager.php

@@ -147,7 +147,7 @@ protected function organiseComments($comments, SortingInterface $sorter, $ignore
      * perform the saving of the comment to the backend.
      *
      * @param CommentInterface $comment
-     * @throws InvalidArumgnetException when the comment does not have a thread.
+     * @throws InvalidArgumentException when the comment does not have a thread.
      */
     public function saveComment(CommentInterface $comment)
     {

Resources/config/events.xml

@@ -44,5 +44,9 @@
             <argument type="service" id="logger" />
         </service>
 
+        <service id="fos_comment.listener.closed_threads" class="FOS\CommentBundle\EventListener\ClosedThreadListener">
+            <!-- TODO: 2.1 <tag name="kernel.event_subscriber" /> -->
+            <tag name="kernel.event_listener" event="fos_comment.comment.pre_persist" method="onCommentPersist" />
+        </service>
     </services>
 </container>

Resources/views/Thread/comments.html.twig

@@ -12,8 +12,8 @@
 {% set depth = depth|default(0) %}
 {% set view = view|default('tree') %}
 
-{% if depth == 0 and fos_comment_can_comment() %}
-        {% render "FOSCommentBundle:Thread:newThreadComments" with {"id": thread.id} %}
+{% if depth == 0 and thread.commentable and fos_comment_can_comment() %}
+    {% render "FOSCommentBundle:Thread:newThreadComments" with {"id": thread.id} %}
 {% endif %}
 
 {% for commentinfo in comments %}