Comment notification extensions

_config/comments.yml

@@ -6,3 +6,12 @@ Only:
 Comment:
   extensions:
     - BlogCommentExtension
+
+---
+Name: blogcommentnotifications
+Only:
+  moduleexists: 'comment-notifications'
+---
+BlogPost:
+  extensions:
+    - BlogPostNotifications

code/extensions/BlogPostNotifications.php

@@ -0,0 +1,30 @@
+<?php
+
+/**
+ * Customise blog post to support comment notifications
+ * Extends {@see BlogPost} with extensions to {@see CommentNotifiable}
+ */
+class BlogPostNotifications extends DataExtension {
+
+	/**
+	 * Notify all authors of notifications
+	 *
+	 * @param type $list
+	 * @param type $comment
+	 */
+	public function updateNotificationRecipients(&$list, &$comment) {
+		// Notify all authors
+		$list = $this->owner->Authors();
+	}
+
+	/**
+	 * Update comment to include the page title
+	 *
+	 * @param string $subject
+	 * @param Comment $comment
+	 * @param Member|string $recipient
+	 */
+	public function updateNotificationSubject(&$subject, &$comment, &$recipient) {
+		$subject = "A new comment has been posted on " . $this->owner->Title;
+	}
+}