Django-rest-framework 教程四：认证过程中的AttributeError

Question

我正在学习 django-rest-framework 教程，但我不知道这里发生了什么。

我创建了一个带有代码片段属性的 UserSerializer class，并且我完成了所有导入工作

#--!-coding: utf-8
from rest_framework import serializers
from snippets.models import Snippet
from django.contrib.auth.models import User

class SnippetSerializer(serializers.ModelSerializer):
    owner = serializers.ReadOnlyField(source='owner.username')

    class Meta:
        model = Snippet
        fields = ('id', 'title', 'code', 'linenos', 'language', 'style', 'owner')

class UserSerializer(serializers.ModelSerializer):
    snippets = serializers.PrimaryKeyRelatedField(many=True, queryset=Snippet.objects.all())

    class Meta:
        model = User
        fields = ('id', 'username', 'snippets')

然后我创建了 UserList 和 UserDetails 视图：

class UserList(generics.ListAPIView):
    queryset = User.objects.all()
    serializer_class = UserSerializer

class UserDetail(generics.RetrieveAPIView):
    queryset = User.objects.all()
    serializer_class = UserSerializer

并且我几乎完全按照教程进行操作，但是当我尝试访问其中一个用户端点时，我收到了 AttributeError

AttributeError at /users/

'User' object has no attribute 'snippets'

我正在使用 django 1.7.5 和 django-rest-framework 3.0.5

不知道是不是这个版本的问题

编辑：

这是我的模特：

class Snippet(models.Model):
    created = models.DateTimeField(auto_now_add=True)
    title = models.CharField(max_length=100, blank = True, default='')
    code = models.TextField()
    linenos = models.BooleanField(default=False)
    language = models.CharField(choices=LANGUAGE_CHOICES, default='python', max_length=100)
    style = models.CharField(choices=STYLE_CHOICES, default='friendly', max_length=100)
    owner = models.ForeignKey('auth.User')
    highlighted = models.TextField()

    class Meta:
        ordering = ('created',)

    def save(self, *args, **kwargs):
        """
        Usa o a biblioteca pygments para criar um representacao HTML com destaque do snippet
        """
        lexer = get_lexer_by_name(self.language)
        linenos = self.linenos and 'table' or False
        options = self.title and {'title': self.title} or {}
        formatter = HtmlFormatter(style=self.style, linenos=linenos, full=True, **options)
        self.highlighted = highlight(self.code, lexer, formatter)
        super(Snippet, self).save(*args, **kwargs)

Answer 1

在您的代码段模型中，您需要将相关名称添加到所有者字段。

owner = models.ForeignKey('auth.User', related_name='snippets')

Django-rest-framework 教程四：认证过程中的AttributeError

AttributeError during Django-rest-framework tutorial 4: authentication

python

django

django-rest-framework