select_related musi odkazovat na klic, nikoli atribut.

seminar/views.py

@@ -502,7 +502,7 @@ class CisloView(generic.DetailView):
 class ArchivTemataView(generic.ListView):
     model = Problem
     template_name = 'seminar/archiv/temata.html'
-    queryset = Problem.objects.filter(typ=Problem.TYP_TEMA, stav=Problem.STAV_ZADANY).select_related('cislo_zadani__rocnik__rocnik').order_by('-cislo_zadani__rocnik__rocnik', 'kod')
+    queryset = Problem.objects.filter(typ=Problem.TYP_TEMA, stav=Problem.STAV_ZADANY).select_related('cislo_zadani__rocnik').order_by('-cislo_zadani__rocnik__rocnik', 'kod')
 
 ### Generovani vysledkovky
 
@@ -704,12 +704,12 @@ def soustredeniUcastniciExportView(request,soustredeni):
 class ClankyResitelView(generic.ListView):
     model = Problem
     template_name = 'seminar/clanky/resitelske_clanky.html'
-    queryset = Problem.objects.filter(typ=Problem.TYP_RES_CLANEK, stav=Problem.STAV_ZADANY).select_related('cislo_zadani__rocnik__rocnik').order_by('-cislo_zadani__rocnik__rocnik', 'kod')
+    queryset = Problem.objects.filter(typ=Problem.TYP_RES_CLANEK, stav=Problem.STAV_ZADANY).select_related('cislo_zadani__rocnik').order_by('-cislo_zadani__rocnik__rocnik', 'kod')
 
 class ClankyOrganizatorView(generic.ListView):
     model = Problem
     template_name = 'seminar/clanky/organizatorske_clanky.html'
-    queryset = Problem.objects.filter(typ=Problem.TYP_ORG_CLANEK, stav=Problem.STAV_ZADANY).select_related('cislo_zadani__rocnik__rocnik').order_by('-cislo_zadani__rocnik__rocnik', 'kod')
+    queryset = Problem.objects.filter(typ=Problem.TYP_ORG_CLANEK, stav=Problem.STAV_ZADANY).select_related('cislo_zadani__rocnik').order_by('-cislo_zadani__rocnik__rocnik', 'kod')
 
 
 ### Status