REST_FRAMEWORK加深记忆-加了API_ROOT及超链接的CASE

urls.py

from django.conf.urls import url
from rest_framework.urlpatterns import format_suffix_patterns
from snippets import views

urlpatterns = [
    url(r'^$', views.api_root),
    url(r'^snippets/$', views.SnippetList.as_view(), name='snippet-list'),
    url(r'snippets/(?P<pk>[0-9]+)/$', views.SnippetDetail.as_view(), name='snippet-detail'),
    url(r'^snippets/(?P<pk>[0-9]+)/highlight/$', views.SnippetHighlight.as_view(), name='snippet-highlight'),
    url(r'^users/$', views.UserList.as_view(), name='user-list'),
    url(r'^users/(?P<pk>[0-9]+)/$', views.UserDetail.as_view(), name='user-detail'),
]

urlpatterns = format_suffix_patterns(urlpatterns)

serializers.py

from rest_framework import serializers
from snippets.models import Snippet, LANGUAGE_CHOICES, STYLE_CHOICES
from django.contrib.auth.models import User

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

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

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

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

class SnippetSerializer(serializers.HyperlinkedModelSerializer):
    owner = serializers.ReadOnlyField(source='owner.username')
    highlight = serializers.HyperlinkedIdentityField(view_name='snippet-highlight', format='html')

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

class UserSerializer(serializers.HyperlinkedModelSerializer):
    snippets = serializers.HyperlinkedRelatedField(many=True, view_name='snippet-detail', read_only=True)

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

views.py

from snippets.models import Snippet
from snippets.permissions import IsOwnerOrReadOnly
from snippets.serializers import SnippetSerializer
from snippets.serializers import UserSerializer
from rest_framework import generics
from django.contrib.auth.models import User
from rest_framework import permissions
from rest_framework.decorators import api_view
from  rest_framework.response import Response
from rest_framework.reverse import reverse
from rest_framework import renderers

@api_view(('GET',))
def api_root(request, format=None):
    return Response({
        'users': reverse('user-list', request=request, format=format),
        'snippets': reverse('snippet-list', request=request, format=format),
    })

class SnippetHighlight(generics.GenericAPIView):
    queryset = Snippet.objects.all()
    renderer_classes = (renderers.StaticHTMLRenderer,)

    def get(self, request, *args, **kwargs):
        snippet = self.get_object()
        return Response(snippet.highlighted)

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

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

class SnippetList(generics.ListCreateAPIView):
    queryset = Snippet.objects.all()
    serializer_class = SnippetSerializer
    permission_classes = (permissions.IsAuthenticatedOrReadOnly,)

    def perform_create(self, serializer):
        serializer.save(owner=self.request.user)

class SnippetDetail(generics.RetrieveUpdateDestroyAPIView):
    queryset = Snippet.objects.all()
    serializer_class = SnippetSerializer
    permission_classes = (permissions.IsAuthenticatedOrReadOnly,
                          IsOwnerOrReadOnly,)