Question

以下是我的模型示例：

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')

我正在尝试查找所有包含图片且活动字段= False

的相册

Section.object.filter(albums__images__active=False)

但即使他们的字段有效= True

，我也会收到所有图片

Answer 1

无论如何，你的模型缺乏可读性，所以我假设你的模型类似于下面的内容，

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，可能的回答是，

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

Django过滤两次嵌套实例

1 个答案: