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[wolnelektury.git] / src / catalogue / helpers.py

diff --git a/src/catalogue/helpers.py b/src/catalogue/helpers.py
index 38e2a87..e476079 100644 (file)
--- a/src/catalogue/helpers.py
+++ b/src/catalogue/helpers.py
@@ -57,7 +57,7 @@ def update_counters():
     def count_for_book(book, count_by_combination=None, parent_combinations=None):
         if not parent_combinations:
             parent_combinations = set()
     def count_for_book(book, count_by_combination=None, parent_combinations=None):
         if not parent_combinations:
             parent_combinations = set()

-        tags = sorted(tuple(t.pk for t in book.tags.filter(category__in=('author', 'genre', 'epoch', 'kind'))))
+        tags = sorted(book.tags.filter(category__in=('author', 'genre', 'epoch', 'kind')).values_list('pk', flat=True))

         combs = list(combinations(tags))
         for c in combs:
             if c not in parent_combinations:
         combs = list(combinations(tags))
         for c in combs:
             if c not in parent_combinations: