Question

我有以下模型，并希望在Web API中显示一些必需的结果。

class Poll(models.Model):
    question = models.CharField(max_length=100)
    created_by = models.ForeignKey(User, on_delete=models.CASCADE)
    pub_date = models.DateTimeField(auto_now=True)

class Choice(models.Model):
    poll = models.ForeignKey(Poll, related_name='choices', on_delete=models.CASCADE)
    choice_text = models.CharField(max_length=100)

class Vote(models.Model):
    choice = models.ForeignKey(Choice, related_name='votes', on_delete=models.CASCADE)
    poll = models.ForeignKey(Poll, on_delete=models.CASCADE)
    voted_by = models.ForeignKey(User, on_delete=models.CASCADE)

我以如下方式进行设置：

class VoteSerializer(serializers.ModelSerializer):
    voted_by = serializers.StringRelatedField(many=False)

    class Meta:
        model = Vote
        fields = '__all__'
class ChoiceSerializer(serializers.ModelSerializer):
    votes = VoteSerializer(many=True, required=False)

    class Meta:
        model = Choice
        fields = '__all__'
class PollSerializer(serializers.ModelSerializer):
    choices = ChoiceSerializer(many=True, read_only=True, required=False)
    created_by = serializers.StringRelatedField(many=False) 
    class Meta:
        model = Poll
        fields = '__all__'

class UserSerializer(serializers.ModelSerializer):

    class Meta:
        model = User
        fields = ('username', 'email', 'password')
        extra_kwargs = {'password': {'write_only': True}}

    def create(self, validated_data):
        user = User(
            email=validated_data['email'],
            username=validated_data['username']
        )
        user.set_password(validated_data['password'])
        user.save()
        Token.objects.create(user=user)
        return user

我想要一个结果，其中只有那些投票显示在vote_by =“选择ID”的选项中。 **但结果包括所有投票**

{ “ id”：1 “投票”：[ { “ id”：1 “ voted_by”：1 “选择”：1， “民意调查”：1 }， { “ id”：2 “ voted_by”：2 “选择”：1， “民意调查”：1 } ]， “ choice_text”：“它提供Web API和身份验证权限以确保安全。”， “民意调查”：1 }

如何在框架中获得必填结果？

0 个答案: