I have two models Article and Blog related using a foreign key. I want to select only blog name while extracting the article.
articles = Articles.objects.all().select_related('blog__name')
The query generated shows that it selected all the fields from the Blog model. I tried using only() and defer() with select_related but both didn't work out.
articles = Articles.objects.all().select_related('blog__name').only('blog__name', 'title', 'create_time')
The above query resulted in error: Invalid field name(s) given in select_related: Choices are: blog
How do i generate a query so that only article fields and blog name is selected?
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')