如何将外键里的字典字段解构到外层

Question

class CategorySerializers(serializers.ModelSerializer):
    class Meta:
        model = Category
        exclude = ('desc','add_time','update_time')


class ArticleListSerializers(serializers.ModelSerializer):
    category_type = CategorySerializers()
    update_time = serializers.DateTimeField(format='%Y-%m-%d %H:%M:%S')

    class Meta:
        model = Article
        fields = "__all__"

直接显示 category_type: ‘动漫’,而不是字典对象

Answer 1

bobby 2022-04-17 12:37:00

自己在给serializer设置一个category字段，然后自己从category_type的某个值取出来赋值给category

• 提问者 野火燎原 #1

  Got AttributeError when attempting to get a value for field `category` on serializer `ArticleListSerializers`.
  The serializer field might be named incorrectly and not match any attribute or key on the `Article` instance.
  Original exception text was: 'Article' object has no attribute 'category'.
  
  报错说新增的category字段不在article对象中,能否给代码

• bobby 回复 提问者 野火燎原 #2

  你的代码是如何写的？截图我看看

• 提问者 野火燎原 回复 bobby #3

  class CategorySerializers(serializers.ModelSerializer):
      class Meta:
          model = Category
          fields = ("name",)
  
  
  class ArticleListSerializers(serializers.ModelSerializer):
      category = CategorySerializers()
      update_time = serializers.DateTimeField(format='%Y-%m-%d %H:%M:%S')
  
      class Meta:
          model = Article
          fields = "__all__"

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