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change ListSerializer's all to iterator. Under a lot of data, the iterator better than all

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This commit is contained in:
liuzhichao 2018-10-26 11:06:03 +08:00
parent 9d001cd84c
commit 483995878a
1 changed files with 1 additions and 1 deletions
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2
rest_framework/serializers.py
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@ -677,7 +677,7 @@ class ListSerializer(BaseSerializer):
"""
# Dealing with nested relationships, data can be a Manager,
# so, first get a queryset from the Manager if needed
iterable = data.all() if isinstance(data, models.Manager) else data
iterable = data.iterator() if isinstance(data, models.Manager) else data
return [
self.child.to_representation(item) for item in iterable