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我遵循django-rest-framework教程,我無法弄清楚這裏發生了什麼。Django-rest-framework教程4中的AttributeError認證
我創建了一個UserSerializer類與片斷屬性,我做了所有的進口
#--!-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')
然後我創建了UserList的和的UserDetails觀點:
class UserList(generics.ListAPIView):
queryset = User.objects.all()
serializer_class = UserSerializer
class UserDetail(generics.RetrieveAPIView):
queryset = User.objects.all()
serializer_class = UserSerializer
和我我幾乎按照教程,但當我嘗試訪問其中一個用戶端點時,我得到一個AttributeError
AttributeError at /users/
'User' object has no attribute 'snippets'
我使用Django 1.7.5和Django的其餘框架3.0.5
我不知道這是否是這個特定版本的問題。
編輯:
這是我的模型:
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)
用戶模型默認情況下是否有「snippets」字段? – dursk 2015-03-02 20:01:59
不,但由於Foreignkey @mattm存在snippet_set。 – 2015-03-02 20:07:08
@Bakuriu,我正在學習教程,好嗎?我在我的UserSerializer類中添加了一個snippets字段,這就是我正在使用的。我使用generics.ListAPIView來製作視圖,所以它應該可以工作。 – 2015-03-02 20:17:54