create a method for notification for new messages, and use it

actions/apidirectmessagenew.php

@@ -175,7 +175,7 @@ class ApiDirectMessageNewAction extends ApiAuthAction
             return;
         }
 
-        mail_notify_message($message, $this->user, $this->other);
+        $message->notify();
 
         if ($this->format == 'xml') {
             $this->showSingleXmlDirectMessage($message);

actions/newmessage.php

@@ -173,7 +173,7 @@ class NewmessageAction extends Action
             return;
         }
 
-        $this->notify($user, $this->other, $message);
+        $message->notify();
 
         if ($this->boolean('ajax')) {
             $this->startHTML('text/xml;charset=utf-8');
@@ -247,12 +247,6 @@ class NewmessageAction extends Action
         }
     }
 
-    function notify($from, $to, $message)
-    {
-        mail_notify_message($message, $from, $to);
-        // XXX: Jabber, SMS notifications... probably queued
-    }
-
     // Do nothing (override)
 
     function showNoticeForm()

classes/Message.php

@@ -89,4 +89,12 @@ class Message extends Memcached_DataObject
         $contentlimit = self::maxContent();
         return ($contentlimit > 0 && !empty($content) && (mb_strlen($content) > $contentlimit));
     }
+
+    function notify()
+    {
+        $from = User::staticGet('id', $this->from_profile);
+        $to   = User::staticGet('id', $this->to_profile);
+
+        mail_notify_message($this, $from, $to);
+    }
 }

lib/command.php

@@ -372,7 +372,7 @@ class MessageCommand extends Command
         }
         $message = Message::saveNew($this->user->id, $other->id, $this->text, $channel->source());
         if ($message) {
-            mail_notify_message($message, $this->user, $other);
+            $message->notify();
             $channel->output($this->user, sprintf(_('Direct message to %s sent'), $this->other));
         } else {
             $channel->error($this->user, _('Error sending direct message.'));