“尝试在序列化程序 AssetSerializer 上获取字段 devUserId 的值时出现 KeyError。原始异常文本为：'devUserId'

Question

models.py

class User(models.Model):
    googleId = models.CharField(max_length=512, primary_key=True, default='')
    imageURL = models.CharField(max_length=512, null=True)
    userName = models.CharField(max_length=512, null=True)
    firstName = models.CharField(max_length=512, null=True)
    lastName = models.CharField(max_length=512, null=True)
    #phoneNumberRegex = RegexValidator(regex=r"^+?1?\d{8,15}$")
    phoneNumber = models.CharField(max_length=512, null=True)
    email1 = models.CharField(max_length=512, blank=False)
    email2 = models.CharField(max_length=512, blank=True)
    bio = models.TextField(blank=True)
    planId = models.ForeignKey('primal_user.Plans',
                               on_delete=models.CASCADE,
                               default="Free")
    password = models.CharField(max_length=512, null=True)
    accountCreationDate = models.DateTimeField(auto_now_add=True)
    coins = models.IntegerField(default=2)
    assetsDownloaded = models.IntegerField(default=0)
    assetsPurchased = models.IntegerField(default=0)

class Asset(models.Model):
    assetId = models.CharField(max_length=20, primary_key=True)
    devUserId = models.ForeignKey(User, on_delete=models.CASCADE)
    keywordId = models.ForeignKey(Tags, on_delete=models.CASCADE)
    assetName = models.CharField(max_length=50, null=False)
    description = models.TextField(blank=True)
    features = models.TextField(blank=True)
    uploadedDate = models.DateField(auto_now_add=True)
    typeId = models.BooleanField(default=True)
    paidStatus = models.BooleanField(default=False)
    price = models.IntegerField(null=True)
    size = models.FloatField(null=False)
    downloadCount = models.BigIntegerField(null=True)
    version = models.CharField(max_length=10)

serializer.py

class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = '__all__'
class AssetSerializer(serializers.ModelSerializer):
    class Meta:
        model = Asset
        fields = '__all__'

views.py

class UserAsset(APIView):
    def get(self,request,devUserId):
        try:
            user = Asset.objects.filter(devUserId=devUserId).values()
            serializer = AssetSerializer(user, many= True)
            return Response(serializer.data)
        except Asset.DoesNotExist:
            raise Http404

KeyError

我是 Django 的初学者，所以无法弄清楚问题出在哪里。我尝试寻找类似问题的解决方案，但无法解决问题。我遇到了属性错误，然后在我在 AssetSerializer 中输入 many=True 后问题得到解决，但现在我遇到了这个 KeyError。在尝试找出错误时，我注意到在执行 serializer.data 时会抛出此错误。感谢您提供的任何帮助。

Answer 1

在您的代码中，只需要在语法上做一点小改动。

而不是：

user = Asset.objects.filter(devUserId=devUserId).values()

写入：

user = Asset.objects.filter(devUserId=devUserId)

这应该可以解决问题！[=12=]

Answer 2

try with user = Asset.objects.values('fieldnamehere').filter(devUserId=devUserId)

“尝试在序列化程序 AssetSerializer 上获取字段 devUserId 的值时出现 KeyError。原始异常文本为：'devUserId'

"Got KeyError when attempting to get a value for field devUserId on serializer AssetSerializer. Original exception text was: 'devUserId'

python

django

django-models

django-rest-framework

django-serializer