Django过滤两次嵌套实例

Question

这是我的模型的一个例子：

class Section(models.Model):
   name = models.CharField(max_length=255)


class Album(models.Model):
   name = models.CharField(max_length=255)
   model1 = models.ManyToManyField(Section, on_delete=models.CASCADE,
 related_name='model2')



class Image(models.Model):
   name = models.CharField(max_length=255)
   active = models.BooleanField(default=True)
   model2 = models.ManyToManyField(Album, on_delete=models.CASCADE,
related_name='model3')

我试图找到所有具有活动字段= False的图像的专辑的部分

Section.object.filter(albums__images__active=False)

但即使他们的字段为活动= True，我也会获得所有图像

Answer 1

无论如何，你的模型缺乏可读性，所以我假设你的模型是下面的，

class Section(models.Model):
    name = models.CharField(max_length=255)


class Album(models.Model):
    name = models.CharField(max_length=255)
    genre = models.ManyToManyField(Section, on_delete=models.CASCADE, related_name='genre')


class Image(models.Model):
    name = models.CharField(max_length=255)
    active = models.BooleanField(default=True)
    field_new = models.ManyToManyField(Album, on_delete=models.CASCADE, related_name='field_new')

如果是这样，可能的答案是，

section_queryset = Section.objects.filter(genre__isnull=False, genre__field_new__isnull=False, genre__field_new__active=False)