Hi,
I just discovered, that "if obj in queryset" can be very slow:
queryset=MyModel.objects.all()
obj=MyModel.objects.get(id=319526)
#if obj in queryset: # This is very slow, if queryset is big: All lines from
queryset get created to Python objects
# print 'in'
if queryset.filter(id=obj.id): # Fast: Check is done inside DB.
print 'in'
What is the best way to do "if obj in queryset"?
Thomas
--
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de
--
You received this message because you are subscribed to the Google Groups
"Django users" group.
To post to this group, send email to django-users@googlegroups.com.
To unsubscribe from this group, send email to
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en.
