Fixed query.

seminar/views.py

@@ -552,9 +552,8 @@ def aktivniResitele(rocnik,cislo):
     if int(cislo) > 3:
         problemy = Problem.objects.filter(cislo_zadani = letos.cisla)
     else:
-        problemy = Problem.objects.filter(Q(cislo_zadani = letos.cisla)|Q(cislo_zadani=loni.cisla))
-    resitele = aktualni_resitele.filter(reseni = Reseni.objects.filter(problem=problemy)).distinct()
-
+        problemy = Problem.objects.filter(Q(cislo_zadani__in = letos.cisla)|Q(cislo_zadani__in = loni.cisla))
+    resitele = aktualni_resitele.filter(reseni__in = Reseni.objects.filter(problem__in=problemy)).distinct()
     return resitele