fix: last year cycle day updated

Author: b-angelov

izpitnik/orth_calendar/admin.py

@@ -14,9 +14,9 @@ class HolidayOccurrencesAdminMixin:
     def save_model(self, request, obj, form, change):
         feasts = form.cleaned_data["feast"]
         saints = form.cleaned_data["saint"]
-        calculus = Calculus(form.cleaned_data["date"],calendar=form.cleaned_data["calendar"])
-        obj.easter_distance = self.__get_distance("easter_distance",calculus.easter_distance,form.cleaned_data)
-        obj.christmas_distance = self.__get_distance("christmas_distance",calculus.christmas_distance,form.cleaned_data)
+        calculus = Calculus(form.cleaned_data["date"],calendar=form.cleaned_data["calendar"]).get_distance()
+        obj.easter_distance = self.__get_distance("easter_distance",lambda: calculus["easter"],form.cleaned_data)
+        obj.christmas_distance = self.__get_distance("christmas_distance",lambda: calculus["christmas"],form.cleaned_data)
         obj.save()
         obj.feast.set(feasts)
         obj.saint.set(saints)