UPDATED: 3.1 compatibility

ADDED: Extension hook for updating email object prior to send
UPDATED: Documentation

README.md

@@ -37,6 +37,21 @@ CommentsNotifications:
   recipient: 'Page'
 ```
 
+## Extending
+
+To hook into the outgoing email (in order to customise the template) you can 
+extend CommentingController with an extending class with a function updateEmail
+
+```php
+class EmailSenderExtension extends Extension {
+	public function updateEmail(Email &$email) {
+		$email->populateTemplate(array(
+			'SiteConfig' => SiteConfig::current_site_config()
+		));
+	}
+}
+```
+
 ## Need more help?
 
 Message or email me at damian.mooyman@gmail.com or, well, read the code!

code/CommentsNotifications.php

@@ -31,4 +31,4 @@ public static function get_recipient($parent) {
 			default: return $recipient;
 		}
 	}
-}
+}

code/extensions/CommentingControllerNotificationsExtension.php

@@ -38,7 +38,9 @@ public function onAfterPostComment(Comment $comment) {
 		$email->addCustomHeader('X-Sender', $sender);
 		$email->addCustomHeader('Sender', $sender);
 
+		$this->owner->extend('updateEmail', $email);
+
 		// Send
 		$email->send();
 	}
-}
+}

code/extensions/CommentsNotificationsExtension.php

@@ -4,7 +4,7 @@
  * @author Damian Mooyman
  */
 class CommentsNotificationsExtension extends DataExtension {
-	static $db = array(
+	private static $db = array(
 		'CommentNotificationEmail' => 'Varchar(255)'
 	);
-}
+}

code/extensions/PageCommentsNotificationsExtension.php

@@ -13,4 +13,4 @@ public function updateSettingsFields(FieldList $fields) {
 			);
 		}
 	}
-}
+}

code/extensions/SiteConfigCommentsNotificationsExtension.php

@@ -13,4 +13,4 @@ public function updateCMSFields(FieldList $fields) {
 			);
 		}
 	}
-}
+}