mirrors/django
1
0
Fork 0
mirror of https://github.com/django/django.git synced 2025-10-23 21:59:11 +00:00
Code Issues 32 Releases Wiki Activity

Fixed #28838 -- Fixed Model.save() crash if the base manager annotates with a related field.

Browse Source
This commit is contained in:
shanghui
2018-01-14 10:58:21 +08:00
committed by Tim Graham
parent cbac11f962
commit 8dc675d90f
3 changed files with 31 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
tests/custom_managers/models.py
View File

@@ -25,6 +25,13 @@ class PublishedBookManager(models.Manager):
return super().get_queryset().filter(is_published=True)
class AnnotatedBookManager(models.Manager):
def get_queryset(self):
return super().get_queryset().annotate(
favorite_avg=models.Avg('favorite_books__favorite_thing_id')
)
class CustomQuerySet(models.QuerySet):
def filter(self, *args, **kwargs):
queryset = super().filter(fun=True)
@@ -131,7 +138,6 @@ class Book(models.Model):
title = models.CharField(max_length=50)
author = models.CharField(max_length=30)
is_published = models.BooleanField(default=False)
published_objects = PublishedBookManager()
authors = models.ManyToManyField(Person, related_name='books')
fun_authors = models.ManyToManyField(FunPerson, related_name='books')
favorite_things = GenericRelation(
@@ -145,6 +151,12 @@ class Book(models.Model):
object_id_field='favorite_thing_id',
)
published_objects = PublishedBookManager()
annotated_objects = AnnotatedBookManager()
class Meta:
base_manager_name = 'annotated_objects'
def __str__(self):
return self.title