通过OneToOneField进行django休息框架lookup_field [英] django rest framework lookup_field through OneToOneField
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问题描述
https://gist.github.com/ranman/3d97ea9054c984bca75e
所需行为
用户查找是由用户名进行的: / api / users / randall
扬声器查找也由用户名进行: / api / speakers / randall
限制
并非所有用户都是扬声器。所有演讲者都是用户。
Constraints
Not all users are speakers. All speakers are users.
models.py
from django.contrib.auth.models import User
class Speaker(models.Model):
user = models.OneToOneField(User)
serializers.py
class UserSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = User
fields = ('url', 'username', 'email', 'groups')
lookup_field = 'username'
class SpeakerSerializer(serializers.HyperlinkedModelSerializer):
user = serializers.HyperlinkedRelatedField(
view_name='user-detail',
read_only=True,
lookup_field='username'
)
class Meta:
model = Speaker
lookup_field = 'user'
views.py
class UserViewSet(viewsets.ModelViewSet):
queryset = User.objects.all()
serializer_class = UserSerializer
lookup_field = 'username'
class SpeakerViewSet(viewsets.ModelViewSet):
queryset = Speaker.objects.all().select_related('user')
serializer_class = SpeakerSerializer
lookup_field = "user"
我尝试过各种不同的lookup_field和serializer类型的调用,以使其无法使用。没有更多的代码可能是不可能的。我只是想知道我可以采取什么方向。
I've tried various different invocations of lookup_field and serializer types to get this working to no avail. It may not be possible without a lot more code. I'm just wondering what direction I can take.
谢谢!
推荐答案
这是我如何设法破解
from django.db import models
from django.contrib.auth.models import User
class Speaker(models.Model):
user = models.OneToOneField(User)
@property
def user__username(self):
return self.user.username
def __unicode__(self):
return self.user.username
serializers.py
serializers.py
from .models import Speaker
from rest_framework import serializers
from django.contrib.auth.models import User
class UserSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = User
fields = ('url', 'username', 'email', 'groups')
lookup_field = 'username'
class SpeakerSerializer(serializers.HyperlinkedModelSerializer):
user = serializers.HyperlinkedRelatedField(
view_name='user-detail',
read_only=True,
lookup_field='username'
)
class Meta:
model = Speaker
fields = ('url', 'user')
lookup_field = 'user__username'
view.py
view.py
from .models import Speaker
from .serializers import SpeakerSerializer, UserSerializer
from rest_framework import viewsets
from django.contrib.auth.models import User
class UserViewSet(viewsets.ModelViewSet):
queryset = User.objects.all()
serializer_class = UserSerializer
lookup_field = 'username'
class SpeakerViewSet(viewsets.ModelViewSet):
queryset = Speaker.objects.all().select_related('user')
serializer_class = SpeakerSerializer
lookup_field = 'user__username'
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