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Made note stronger re: race condition

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Refs #478
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Ross Lawley
2012-05-09 12:13:42 +01:00
parent eb54037b66
commit 5c4b33e8e6
1 changed files with 3 additions and 1 deletions
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mongoengine/queryset.py
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@@ -794,7 +794,9 @@ class QuerySet(object):
keyword argument called :attr:`defaults`. keyword argument called :attr:`defaults`.
.. note:: This requires two separate operations and therefore a .. note:: This requires two separate operations and therefore a
potential race condition exists. race condition exists. Because there are no transactions in mongoDB
other approaches should be investigated, to ensure you don't
accidently duplicate data when using this method.
:param write_options: optional extra keyword arguments used if we :param write_options: optional extra keyword arguments used if we
have to create a new document. have to create a new document.