Question

我有一个问题希望你们帮助我。我想要一个带有用户字段的ChoiceField choices=参与者并且last_name为'Z'的用户。

我的序列化器：

class ArticleCreateSerializer(ModelSerializer):
    user_choice = SerializerMethodField()
    user = ChoiceField(choices=user_choice)
    class Meta:
        model = Feed
        fields = [
            'id',
            'user',
            'post',
            'participants'
        ]
   def get_user_choice(self, obj):
        user_choice = User.objects.filter(id=obj.participants, last_name='Z')
        return user_choice

错误：

TypeError: 'SerializerMethodField' object is not iterable

Answer 1

试试这个，

class ArticleCreateSerializer(ModelSerializer):
    def get_user_choice():
        user_choice = User.objects.filter(id=obj.participants, last_name='Z').values_list('username',flat=True)
        return user_choice

    user = ChoiceField(choices=get_user_choice())
    class Meta:
        model = Feed
        fields = [
            'id',
            'user',
            'post',
            'participants'
        ]

Serialiers中的Custom ChoiceField - Django Rest Framework

1 个答案: