当我尝试通过正小整数字段查询 Django 模型时出现错误

Question

当我运行以下代码时，我收到错误“TypeError: Field 'app' expected a number but got ”

class Category(models.Model):
      class AppChoices(models.Choices):
            ASK_EMBLA = 0
            SUK = 1

      ---


class SellerReview(models.Model):

 ------
    app = models.PositiveSmallIntegerField(
          choices=Category.AppChoices.choices, 
             default=Category.AppChoices.ASK_EMBLA)

    rating = models.PositiveSmallIntegerField()

-----

class RentPostDetailSearializer(serializers.ModelSerializer):

    ---

    def get_posted_by_brief(self, obj: RentPost):
    
           -----

    rating = 0

    ratings = list(poster_profile.seller_reviews.filter(
        app=Category.AppChoices.SUK).values_list("rating", flat=True)) #---> issue here 

    if ratings:
        rating = sum(ratings)/len(ratings)

    ---

不知道为什么会发生这种情况，即使应用选择是整数并且应该是数字

Answer 1

如果值是整数，您应该使用 models.IntegerChoices 而不是 models.Choices。

除非特别使用 IntegerChoices 基础 class，Enum 成员 are not integers。

当我尝试通过正小整数字段查询 Django 模型时出现错误

When i try to query django model by positive small integer field i get error

python

django

django-rest-framework