Hi all - can someone put me out of my misery on this one please?
I have a piece of code that uses the request.GET keys in the url to
produce the following in my views.py
objects = Issue.objects.all()
objects = objects.filter
(designset__project__RA__RA=request.GET.__getitem__('RA')).distinct()
objects = objects.filter
(designset__project__phase__phase=request.GET.__getitem__
('phase')).distinct()
the time spent in the code using this approach is ~14 seconds
However, if I use the combined filter...
objects = Issue.objects.all()
objects = objects.filter
(designset__project__RA__RA=request.GET.__getitem__
('RA'),designset__project__phase__phase=request.GET.__getitem__
('phase')).distinct()
then the time spent reduces to ~2 seconds
this is a significant difference so I'd like to understand why this
occurs as I thought you could combine filters and not hit the
database?
Any words of wisdom would be much appreciated on this.
Regards,
Martin
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