How can I optimize my Django admin queries using select_related?
You can use select_related
to reduce the number of database queries by fetching related objects in a single query. This is especially useful in the Django admin when displaying related fields.
Can you give me an example of how to implement select_related in my admin class?
Sure! In your admin class, you can override the get_queryset
method like this:
class MyModelAdmin(admin.ModelAdmin):
def get_queryset(self, request):
qs = super().get_queryset(request)
return qs.select_related('related_model')
What if I have multiple related models?
You can chain multiple related models in select_related
like this:
return qs.select_related('related_model1', 'related_model2')
Are there any performance considerations I should be aware of?
Yes, while select_related
can reduce the number of queries, it can also increase the amount of data fetched. Be mindful of the size of the related objects.
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