Code cleanup

Use mixins for listviews

nummi/main/views.py

@@ -241,15 +241,7 @@ class AccountMixin:
         }
 
 
-class AccountTListView(AccountMixin, TransactionListView):
-    pass
-
-
-class AccountSListView(AccountMixin, SnapshotListView):
-    pass
-
-
-class SnapshotTListView(TransactionListView):
+class SnapshotMixin:
     def get_queryset(self):
         return super().get_queryset().filter(snapshot=self.kwargs.get("pk"))
 
@@ -259,7 +251,7 @@ class SnapshotTListView(TransactionListView):
         }
 
 
-class CategoryTListView(TransactionListView):
+class CategoryMixin:
     def get_queryset(self):
         return super().get_queryset().filter(category=self.kwargs.get("pk"))
 
@@ -269,6 +261,22 @@ class CategoryTListView(TransactionListView):
         }
 
 
+class AccountTListView(AccountMixin, TransactionListView):
+    pass
+
+
+class AccountSListView(AccountMixin, SnapshotListView):
+    pass
+
+
+class SnapshotTListView(SnapshotMixin, TransactionListView):
+    pass
+
+
+class CategoryTListView(CategoryMixin, TransactionListView):
+    pass
+
+
 class SearchView(TransactionListView):
     def post(self, *args, **kwargs):
         return redirect("search", search=self.request.POST.get("search"))