diff --git a/lib/classes/ModulesNotification.class.php b/lib/classes/ModulesNotification.class.php
index f2f4ddccd70e75e4c5866be3f6e0b69c369bb931..a8be148a6dedda89940b96ffb0eb4b14669e245e 100644
--- a/lib/classes/ModulesNotification.class.php
+++ b/lib/classes/ModulesNotification.class.php
@@ -35,15 +35,14 @@
 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 // +---------------------------------------------------------------------------+
 
-require_once 'lib/meine_seminare_func.inc.php';
-
 class ModulesNotification
 {
 
     public $registered_notification_modules = [];
     public $subject;
 
-    function __construct () {
+    function __construct ()
+    {
         foreach (MyRealmModel::getDefaultModules() as $id => $module) {
             if (!is_object($module)) continue;
             $this->registered_notification_modules[$id] = [
@@ -75,9 +74,8 @@ class ModulesNotification
 
 
 
-
-    // only range = 'sem' is implemented
-    function getAllNotifications ($user_id = NULL) {
+    function getAllNotifications ($user_id = NULL)
+    {
 
         if (is_null($user_id)) {
             $user_id = $GLOBALS['user']->id;
@@ -97,30 +95,31 @@ class ModulesNotification
         while ($row = $statement->fetch(PDO::FETCH_ASSOC)) {
             $seminar_id = $row['Seminar_id'];
             $tools = ToolActivation::findbyRange_id($seminar_id);
+            $notification = CourseMemberNotification::find([$user_id, $seminar_id]);
             $my_sem[$seminar_id] = [
                     'name'       => $row['Name'],
                     'chdate'     => $row['chdate'],
                     'start_time' => $row['start_time'],
                     'tools'    => new SimpleCollection($tools),
                     'visitdate'  => $row['visitdate'],
-                    'notification'=> CourseMemberNotification::find([$user_id, $seminar_id]),
-
+                    'notification'=> $notification ? $notification->notification_data->getArrayCopy() : []
             ];
         }
         $visit_data = get_objects_visits(array_keys($my_sem), 'sem', null, $user_id, array_keys($this->registered_notification_modules));
-
         $news = [];
         foreach ($my_sem as $seminar_id => $s_data) {
-            if (!count($s_data->notification)) continue;
-            $navigation = MyRealmModel::getAdditionalNavigations($seminar_id, $s_data, null, $user_id, $visit_data);
+            if (!count($s_data['notification'])) {
+                continue;
+            }
+            $navigation = MyRealmModel::getAdditionalNavigations($seminar_id, $s_data, null, $user_id, $visit_data[$seminar_id]);
             $n_data = [];
             foreach ($this->registered_notification_modules as $id => $m_data) {
-                if (in_array($id, $s_data->notification->notification_data)
+                if (in_array($id, $s_data['notification'])
                     && isset($navigation[$id])
                     && $navigation[$id]->getImage()
                     && $navigation[$id]->getImage()->getRole() === Icon::ROLE_ATTENTION
                 ) {
-                        $data = $this->getPluginText($navigation, $seminar_id, $id);
+                        $data = $this->getPluginText($navigation[$id], $seminar_id, $id);
                         if ($data) {
                             $n_data[] = $data;
                         }
@@ -143,9 +142,7 @@ class ModulesNotification
             $template_text = $GLOBALS['template_factory']->open('mail/notification_text');
             $template_text->set_attribute('news', $news);
             $template_text->set_attribute('sso', $auth_plugin);
-            return ['text' => $template_text->render(), 'html' => $template->render()];;
-        } else {
-            return FALSE;
+            return ['text' => $template_text->render(), 'html' => $template->render()];
         }
     }
 
@@ -158,132 +155,10 @@ class ModulesNotification
                 $icon = $nav->getImage();
                 $text = $nav->getTitle();
                 if (!$text) {
-                    $text = $this->registered_modules[$id]['name'];
+                    $text = $this->registered_notification_modules[$id]['name'];
                 }
-                $text .= ' - ' .  $icon->getAttributes()['title'];
+                $text .= ' - ' .  $nav->getLinkAttributes()['title'];
                 return compact('text', 'url', 'icon', 'seminar_id');
             }
     }
-
-    // only range = 'sem' is implemented
-    function getModuleText ($m_name, $range_id, $r_data, $range) {
-        global $SEM_CLASS, $SEM_TYPE;
-        $text = '';
-        $sem_class = $SEM_CLASS[$SEM_TYPE[$r_data['sem_status']]["class"]];
-        $slot_mapper = [
-                'files' => "documents",
-                'elearning' => "elearning_interface"
-            ];
-        if ($sem_class) {
-            $slot = isset($slot_mapper[$m_name]) ? $slot_mapper[$m_name] : $m_name;
-            $module = $sem_class->getModule($slot);
-            if (is_a($module, "StandardPlugin")) {
-                return $this->getPluginText($module, $range_id, $r_data, $m_name);
-            }
-        }
-        switch ($m_name) {
-            case 'participants' :
-                if (in_array($r_data['status'], words('dozent tutor'))) {
-                    if ($r_data['new_accepted_participants'] > 1) {
-                        $text = sprintf(_("%s neue vorläufige Teilnehmende, "), $r_data['newparticipants']);
-                    } else if ($r_data['new_accepted_participants'] > 0) {
-                        $text = _("1 neue Person, ");
-                    }
-                    if ($r_data['newparticipants'] > 1) {
-                        $text = sprintf(_("%s neue Personen:"), $r_data['newparticipants']);
-                    } else if ($r_data['newparticipants'] > 0) {
-                        $text = _("1 neue Person:");
-                    }
-                    if ($sem_class['studygroup_mode']) {
-                        $redirect = '&redirect_to=dispatch.php/course/studygroup/members/';
-                    } else {
-                        $redirect = '&redirect_to=dispatch.php/course/members/index';
-                    }
-                    $icon = Icon::create("persons", "clickable");
-                }
-                break;
-            case 'documents' :
-                if ($r_data['neuedokumente'] > 1) {
-                    $text = sprintf(_("%s neue Dokumente hochgeladen:"), $r_data['neuedokumente']);
-                } else if ($r_data['neuedokumente'] > 0) {
-                    $text = _("1 neues Dokument hochgeladen:");
-                }
-                $redirect = '&redirect_to=dispatch.php/course/files/flat';
-                $icon = Icon::create("files", "clickable");
-                break;
-            case 'schedule' :
-                if ($r_data['neuetermine'] > 1) {
-                    $text = sprintf(_("%s neue Termine angelegt:"), $r_data['neuetermine']);
-                } else if ($r_data['neuetermine'] > 0) {
-                    $text = _("1 neuer Termin angelegt:");
-                }
-                $redirect = '&redirect_to=dispatch.php/course/dates#a';
-                $icon = Icon::create("date", "clickable");
-                break;
-            case 'elearning_interface' :
-                if (Config::get()->ELEARNING_INTERFACE_ENABLE) {
-                    if ($r_data['neuecontentmodule'] > 1) {
-                        $text = sprintf(_("%s neue Content-Module angelegt"), $r_data['neuecontentmodule']);
-                    } else if ($r_data['neuecontentmodule'] > 0) {
-                        $text = _("1 neues Content-Modul angelegt");
-                    }
-                    $redirect = "&redirect_to=dispatch.php/course/elearning/show";
-                    $icon = Icon::create("learnmodule", "clickable");
-                }
-                break;
-            case 'wiki' :
-                if ($r_data['neuewikiseiten'] > 1) {
-                    $text = sprintf(_("%s Wikiseiten wurden angelegt oder bearbeitet:"), $r_data['neuewikiseiten']);
-                } else if ($r_data['neuewikiseiten'] > 0) {
-                    $text = _("1 Wikiseite wurde angelegt oder bearbeitet:");
-                }
-                $redirect = '&redirect_to=wiki.php&view=listnew';
-                $icon = Icon::create("wiki", "clickable");
-                break;
-            case 'scm' :
-                if ($r_data['neuscmcontent']) {
-                    $text = sprintf(_("Die Seite \"%s\" wurde neu angelegt oder bearbeitet:"), $r_data['scmtabname']);
-                }
-                $redirect = '&redirect_to=dispatch.php/course/scm';
-                $icon = Icon::create("infopage", "clickable");
-                break;
-            case 'votes' :
-                if (Config::get()->VOTE_ENABLE) {
-                    if ($r_data['neuevotes'] > 1) {
-                        $text = sprintf(_("%s neue Umfragen oder Evaluationen wurden angelegt:"), $r_data['neuevotes']);
-                    } else if ($r_data['neuevotes'] > 0) {
-                        $text = _("1 neue Umfrage oder Evaluation wurde angelegt:");
-                    }
-                }
-                $redirect = '#votes';
-                $icon = Icon::create("vote", "clickable");
-                break;
-            case 'news' :
-                if ($r_data['neuenews'] > 1) {
-                    $text = sprintf(_("%s neue Ankündigungen wurden angelegt:"), $r_data['neuenews']);
-                } else if ($r_data['neuenews']) {
-                    $text = _("Eine neue Ankündigung wurde angelegt:");
-                }
-                $redirect = '';
-                $icon = Icon::create("news", "clickable");
-                break;
-            case 'basic_data' :
-                if ($r_data['chdate'] > $r_data['visitdate']) {
-                    $text = _("Die Grunddaten wurden geändert:");
-                }
-                $redirect = '&redirect_to=dispatch.php/course/details/';
-                $icon = Icon::create("home", "clickable");
-                break;
-            default :
-                $redirect = '';
-        }
-        if ($range == 'sem' && $text != '') {
-            $url = 'seminar_main.php?again=yes&auswahl='.$range_id.$redirect;
-            return compact('text', 'url', 'icon', 'range_id');
-        }
-        return $text;
-    }
-
-
-
 }
diff --git a/lib/models/CourseMember.class.php b/lib/models/CourseMember.class.php
index 738a455ba75fe6dda4a5aaf56ba8cb6c864e4fd8..c9260227110901ef656b7a93447e41bd973f1a09 100644
--- a/lib/models/CourseMember.class.php
+++ b/lib/models/CourseMember.class.php
@@ -75,6 +75,8 @@ class CourseMember extends SimpleORMap implements PrivacyObject
 
         $config['additional_fields']['course_name'] = [];
 
+        $config['registered_callbacks']['after_delete'][] = 'cbRemoveNotifications';
+
         parent::configure($config);
     }
 
@@ -148,6 +150,11 @@ class CourseMember extends SimpleORMap implements PrivacyObject
         ))->getFullname($format);
     }
 
+    public function cbRemoveNotifications()
+    {
+        CourseMemberNotification::deleteBySQL('user_id = ?', [$this->user_id]);
+    }
+
     /**
      * Export available data of a given user into a storage object
      * (an instance of the StoredUserData class) for that user.