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cadre de repos Django lookup_field via OneToOneField

https://Gist.github.com/ranman/3d97ea9054c984bca75e

Comportement souhaité
La recherche d'utilisateur s'effectue par le nom d'utilisateur: /api/users/randall
La recherche de haut-parleur s'effectue également par le nom d'utilisateur: /api/speakers/randall

Contraintes
Tous les utilisateurs ne sont pas des orateurs. Tous les intervenants sont des utilisateurs.

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"

J'ai essayé différents types d'appels de types lookup_field et serializer pour que cela fonctionne sans succès. Cela peut ne pas être possible sans beaucoup plus de code. Je me demande simplement quelle direction je peux prendre.

Merci!

pythondjangorestdjango-rest-framework
13
Randall Hunt

Voici comment j'ai réussi à le pirater

models.py

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

sérialiseurs.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

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'
7
Todor

Avez-vous essayé cette approche?

class SpeakerViewSet(viewsets.ModelViewSet):
    queryset = Speaker.objects.all().select_related('user')
    serializer_class = SpeakerSerializer
    filter_backends = (filters.DjangoFilterBackend,)
    filter_fields = ('user', 'user__username',)
0
mariodev