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Do Django generic foreign key lookups in one query

Project description

Django Fast Generic Foreign Keys




Generic foreign keys are incredibly powerful but can’t be prefetched, leading to a large number of SQL queries when accessing a generic foreign key field while iterating over a queryset. This app provides a function that reduces the number of SQL queries to 1 + (number of content types included in the set of generic foreign keys).


  1. Install or add django-fast-gfk to your Python path.


The fetch function returns a generator with the generic foreign key prefetched. Parameter field is the name of the generic foreign key.:

from fast_gfk import fetch

fetch(Bar.objects.all(), field="target"))


  • Hedley Roos



  1. Initial release.

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