class DialogRoomSerializer(ModelSerializer):
    class Meta:
        model = [Room, Dialogue]
        fields = "__all__"

@action(methods=["get"], detail=False, url_path="dialog_room", url_name="dialog_and_room")
    def get_dialog_room(self, request):
        current_user = self.request.user
        dialog = Dialogue.objects.filter(Q(employee=current_user) | Q(student=current_user))
        room = Room.objects.filter(Q(user=current_user) | Q(members=current_user))
        dialog_room = list(chain(dialog, room))
        page = self.paginate_queryset(dialog_room)
        if page:
            serializer = DialogRoomSerializer(page, many=True)
            return self.get_paginated_response(serializer.data)
        serializer = DialogRoomSerializer(page, many=True)
        return Response(data=serializer.data, status=status.HTTP_200_OK)