Django Rest框架-通用视图

Question

我正在学习Django和Django REST框架。我正在尝试执行API并添加查看权限。

来自django。db从django导入模型。contrib。auth。模型导入用户

我的模特：

class Profile(models.Model):
    nickname = models.CharField(max_length=100)
    # Relations
    user = models.OneToOneField(User)

class Word(models.Model):
    value = models.CharField(max_length=100)
    user = models.ForeignKey(User, related_name='word')

我的连载者：

from rest_framework import serializers
from myapp.models import Profile, Word
from django.contrib.auth.models import User

class ProfileSerializer(serializers.ModelSerializer):
    user = serializers.PrimaryKeyRelatedField()

    class Meta:
        model = Profile

        fields = ('id', 'nickname', 'user')


class UserSerializer(serializers.ModelSerializer):
    profile = serializers.PrimaryKeyRelatedField()

    class Meta:
        model = User

        fields = ('id', 'username', 'profile')


class WordSerializer(serializers.ModelSerializer):
    user = serializers.PrimaryKeyRelatedField(many=True)

    class Meta:
        model = Word

        fields = ('id', 'value', 'user')

我的看法：

class WordList(generics.ListCreateAPIView):
    queryset = Word.objects.all()
    serializer_class = WordSerializer


class WordDetail(generics.RetrieveUpdateAPIView):
    queryset = Word.objects.all()
    serializer_class = WordSerializer

当我尝试添加新“word”时-显示错误：

Cannot assign "[]": "Word.user" must be a "User" instance.
Request Method: POST
Request URL:    http://127.0.0.1:8080/api/words/
Django Version: 1.6.2
Exception Type: ValueError
Exception Value:    
Cannot assign "[]": "Word.user" must be a "User" instance.
Exception Location: /home/mikhail/virtualenv/test/lib/python3.3/site-packages/django/db/models/fields/related.py in __set__, line 337
Python Executable:  /home/mikhail/virtualenv/test/bin/python3.3
Python Version: 3.3.5
Python Path:    
['/home/mikhail/virtualenv/test/bin/mysite',
 '/home/mikhail/virtualenv/test/lib/python3.3/site-packages/MySQL_python-1.2.3-py3.3-linux-x86_64.egg',
 '/home/mikhail/virtualenv/test/lib/python3.3',
 '/home/mikhail/virtualenv/test/lib/python3.3/plat-linux',
 '/home/mikhail/virtualenv/test/lib/python3.3/lib-dynload',
 '/usr/lib/python3.3',
 '/usr/lib/python3.3/plat-linux',
 '/home/mikhail/virtualenv/test/lib/python3.3/site-p

序列化程序或视图中存在问题？如何修复？

Answer 1

当您发送创建word记录的POST请求时，您正在为word的user属性发送一个列表（以及一个空列表），其中框架需要一个用户。

我在你发布的代码中看到了一些东西：

>

{'value'：'testWord''用户：1}

其中user的值是要与单词关联的用户的主键。