27
You can use annotate() for this.
>>> a = Articles.objects.annotate(blog_name=F('blog__name')).first()
>>> a.title
>>> a.blog_name
79
select_related should be use on the whole model, and then you can filter it more. This will work:
Articles.objects.select_related('blog').only('blog__name', 'title', 'create_time')
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1
It can be done by adding one more field into only section, it’s blog (I assume it helps Django to keep relation between objects (Article & Blog):
articles = Articles.objects.select_related(
'blog',
).only(
'blog',
'blog__name',
'title',
'create_time',
)
Tested on Django==2.2.19
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