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Diffstat (limited to 'django/core/serializers/python.py')
| -rw-r--r-- | django/core/serializers/python.py | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/django/core/serializers/python.py b/django/core/serializers/python.py index 5a5d8a7036..0ceb676e90 100644 --- a/django/core/serializers/python.py +++ b/django/core/serializers/python.py @@ -67,9 +67,11 @@ class Serializer(base.Serializer): else: def m2m_value(value): return self._value_from_field(value, value._meta.pk) - self._current[field.name] = [ - m2m_value(related) for related in getattr(obj, field.name).iterator() - ] + m2m_iter = getattr(obj, '_prefetched_objects_cache', {}).get( + field.name, + getattr(obj, field.name).iterator(), + ) + self._current[field.name] = [m2m_value(related) for related in m2m_iter] def getvalue(self): return self.objects |