Can anyone help please?
Am 2018-10-11 um 16:58 schrieb Carsten Fuchs:
Dear Django group,
with Django 1.11.15, using the example models Blog and Entry at
<https://docs.djangoproject.com/en/2.1/topics/db/queries/#related-objects>
for reference, I have code like this:
b = Blog.objects.get(name="...")
for e in b.entry_set.all():
print(e.blog)
Obviously, e.blog == b, but I found that for each e, the access to
e.blog causes a subquery to fetch the blog object.
While I understand the concepts of select_related() and
prefetch_related(), I was surprised that the e.blog attributes are not
prepopulated with b. Why is that and what is the proper way to fix the
problem?
Best regards,
Carsten
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