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Fix type for related fields in values_list querysets (#955)

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When fetching a related field in a values_list queryset Django will
return the object primary key, not model instances as was previously
what the mypy plugin assumed.
This commit is contained in:
Sigurd Ljødal
2022-05-12 08:14:17 +02:00
committed by GitHub
parent 724442b241
commit ccef6779ad
2 changed files with 4 additions and 3 deletions
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5
tests/typecheck/managers/querysets/test_values_list.yml
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@@ -53,9 +53,9 @@
main: |
from myapp.models import Post, Blog
values_tuple = Post.objects.values_list('blog', 'blog__num_posts', 'blog__publisher', 'blog__publisher__name').get()
reveal_type(values_tuple[0]) # N: Revealed type is "myapp.models.Blog"
reveal_type(values_tuple[0]) # N: Revealed type is "builtins.int"
reveal_type(values_tuple[1]) # N: Revealed type is "builtins.int"
reveal_type(values_tuple[2]) # N: Revealed type is "myapp.models.Publisher"
reveal_type(values_tuple[2]) # N: Revealed type is "builtins.int"
reveal_type(values_tuple[3]) # N: Revealed type is "builtins.str"
reverse_fields_list = Blog.objects.values_list('post__text').get()
@@ -215,6 +215,7 @@
main: |
from myapp.models import Blog, Publisher
reveal_type(Blog.objects.values_list('id', flat=True)) # N: Revealed type is "django.db.models.query._QuerySet[myapp.models.Blog, builtins.int]"
reveal_type(Blog.objects.values_list('publisher', flat=True)) # N: Revealed type is "django.db.models.query._QuerySet[myapp.models.Blog, builtins.int]"
reveal_type(Blog.objects.values_list('publisher_id', flat=True)) # N: Revealed type is "django.db.models.query._QuerySet[myapp.models.Blog, builtins.int]"
# is Iterable[int]
reveal_type(list(Blog.objects.values_list('id', flat=True))) # N: Revealed type is "builtins.list[builtins.int]"