partly accepted statistics

buisnesslogic/src/main/java/com/plannaplan/services/UserService.java

@@ -219,4 +219,11 @@ public class UserService {
 
     }
 
+    /**
+     * @return ammount of how many users have partly or none schedule accepted
+     */
+    public Integer getAmmountOfUsersWithNoAcceptedSchedules() {
+        return this.getAllStudents().size() - this.getAmmountOfUsersWithAcceptedSchedules();
+    }
+
 }