Is there a way to print the number of raw SQL queries performed by the Django ORM during a Django shell session?
This sort of information is already provided by the Django debug toolbar (e.g, 5 QUERIES in 5.83MS
but it's not obvious how to get it from the shell.
You can use connection.queries
:
>>> from django.conf import settings >>> settings.DEBUG = True >>> from django.db import connection >>> Model.objects.count() >>> print(len(connection.queries)) 1
This is a slight improvement on the accepted answer. create a python file named extra_imports.py in some app (Eg some_app
)
extra_imports.py
from django.conf import settings settings.DEBUG = True from django.db import connection, reset_queries def num_queries(reset=True): print(len(connection.queries)) if reset: reset_queries()
Now, If you are using shell_plus from django_extension (btw check it out if you are not using it), add following line to settings.py
SHELL_PLUS_PRE_IMPORTS = [('some_app.extra_imports', '*')]
If you are using django shell, run this inside shell
exec(open('some_app/extra_imports.py').read()) # python3 execfile('some_app/extra_imports.py').read()) # pyhton2
Or you can just paste the contents of extra_import.py
into the shell
Now,
In [1]: User.objects.all() In [2]: num_queries() 1 In [3]: User.objects.filter(company=Company.objects.first()).all() In [4]: num_queries() 2
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