Fix bug 1962: deleteuser.php regression when OpenID plugin not enabled

The User_openid data object was explicitly listed as a related field to delete from in User::delete(); this class doesn't exist anymore by default since OpenID was broken out to a plugin.
Added UserDeleteRelated event for plugins to add related tables to delete from at user delete time.

1 files changed, 4 insertions, 2 deletions

diff --git a/classes/User.php b/classes/User.php
index 96a64ccb2..b0d372be8 100644
--- a/classes/User.php
+++ b/classes/User.php
@@ -719,16 +719,18 @@ class User extends Memcached_DataObject
     function delete()
     {
         $profile = $this->getProfile();
-        $profile->delete();
+        if ($profile) {
+            $profile->delete();
+        }
 
         $related = array('Fave',
-                         'User_openid',
                          'Confirm_address',
                          'Remember_me',
                          'Foreign_link',
                          'Invitation',
                          'Notice_inbox',
                          );
+        Event::handle('UserDeleteRelated', array($this, &$related));
 
         foreach ($related as $cls) {
             $inst = new $cls();