跨越关系的 Django 更新

Question

我想要运行一个跨越多个关系的更新查询。这可能与 django 吗？这是我试过的：

from django.db.models import F

Transaction.objects.filter(pk__lt=10).update(
    page__total_earned=F('page__total_earned')+5,
    page__profile__balance=F('page__profile__balance')+5
)

下面是我的模型的一瞥，以防您想知道：

class Transaction(models.Model):
    page = models.ForeignKey(Page, related_name='transactions', null=True, blank=True)

class Page(models.Model):
    profile = models.ForeignKey('Profile', related_name='pages', blank=True, null=True)
    total_earned = models.IntegerField(default=0)

class Profile(models.Model):
    balance = models.IntegerField(default=0, db_index=True)

Answer 1

来自 Django docs。

Entry.objects.update(blog__name='foo') # Won't work!

The update() method is applied instantly, and the only restriction on the QuerySet that is updated is that it can only update columns in the model’s main table, not on related models

所以，答案是否定的，你不能那样做。

跨越关系的 Django 更新

Django updates that span relationships

django

django-queryset

django-related-manager