diff --git a/competition/permissions.py b/competition/permissions.py
index 5dc946f..39c7c26 100644
--- a/competition/permissions.py
+++ b/competition/permissions.py
@@ -42,9 +42,6 @@ def has_permission(self, request, view):
         if request.method in permissions.SAFE_METHODS:
             return True
 
-        if request.method == 'POST':
-            return view.get_serializer().Meta.model.can_user_create(request.user, request.data)
-
         return request.user.is_authenticated and request.user.is_staff
 
     def has_object_permission(self, request, view, obj):
diff --git a/competition/views.py b/competition/views.py
index f607e43..9e57d29 100644
--- a/competition/views.py
+++ b/competition/views.py
@@ -203,8 +203,7 @@ def perform_create(self, serializer):
         Volá sa pri vytvarani objektu,
         checkuju sa tu permissions, ci user vie vytvorit problem v danej sutazi
         """
-        series = serializer.validated_data['series']
-        if series.can_user_modify(self.request.user):
+        if Problem.can_user_create(self.request.user, serializer.validated_data):
             serializer.save()
         else:
             raise exceptions.PermissionDenied(
@@ -455,6 +454,17 @@ class SeriesViewSet(ModelViewSetWithSerializerContext):
     permission_classes = (CompetitionRestrictedPermission,)
     http_method_names = ['get', 'head', 'put', 'patch', "post"]
 
+    def perform_create(self, serializer):
+        """
+        Vola sa pri vytvarani objektu,
+        checkuju sa tu permissions, ci user vie vytvorit semester v danej sutazi
+        """
+        if Series.can_user_create(self.request.user, serializer.validated_data):
+            serializer.save()
+        else:
+            raise exceptions.PermissionDenied(
+                'Nedostatočné práva na vytvorenie tohoto objektu')
+
     @staticmethod
     def __create_result_json(series: Series) -> dict:
         results = []
@@ -793,8 +803,7 @@ def perform_create(self, serializer):
         Vola sa pri vytvarani objektu,
         checkuju sa tu permissions, ci user vie vytvorit event v danej sutazi
         """
-        competition = serializer.validated_data['competition']
-        if competition.can_user_modify(self.request.user):
+        if Event.can_user_create(self.request.user, serializer.validated_data):
             serializer.save()
         else:
             raise exceptions.PermissionDenied(
@@ -874,8 +883,7 @@ def perform_create(self, serializer):
         Vola sa pri vytvarani objektu,
         checkuju sa tu permissions, ci user vie vytvorit publication v danom evente
         '''
-        event = serializer.validated_data['event']
-        if event.can_user_modify(self.request.user):
+        if Publication.can_user_create(self.request.user, serializer.validated_data):
             serializer.save()
         else:
             raise exceptions.PermissionDenied(