#34072: django += 1 increments by 2 instead of 1
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Reporter: | Owner: nobody
kaushikk25 |
Type: Bug | Status: new
Component: Database | Version: 3.2
layer (models, ORM) | Keywords: ASGI, Channel, ORM,
Severity: Normal | F Expiration, Race Condition
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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from django.db.models import F
from hotel.models import Hotel
Hotel.objects.filter(city='Chicago').update(total_like=F('total_like'+1))
total_like += 1 increments by 2 instead of 1
So here is my question: What kind of locking mechanisms are available to
Django, to deal with situations similar to this?
After installing the channel and HTTPS request also send wia asgi. but if
the same code is in use WSGI request then working fine.
https://stackoverflow.com/questions/68778007/django-1-increments-by-2
-instead-of-1
https://stackoverflow.com/questions/1030270/race-conditions-in-django
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Ticket URL: <https://code.djangoproject.com/ticket/34072>
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