如何实现资源的层次结构(例如，Django REST框架中的/parents/<id>/children)
如何实现资源的层次结构(例如，Django REST框架中的/parents/<id>/children)
提问于 2013-06-27 16:05:18
我在Django REST Framework网站上的教程中找不到任何关于如何实现这一点的信息，我也没有设法在文档中找到它，尽管我确定它在某个地方。
我希望issues作为父资源，pages作为子资源，这样/issues/1/pages就可以返回issue_id为1的所有页面。
使用基于泛型类的视图有没有实现这一点的好方法？
这是我到目前为止所掌握的。
restAPI/urls.py:
from django.conf.urls import patterns, url
from rest_framework.urlpatterns import format_suffix_patterns
from restAPI import views
urlpatterns = patterns('',
url(r'^issues/$', views.IssueList.as_view()),
url(r'^issues/(?P<pk>[0-9]+)/$', views.IssueDetail.as_view()),
url(r'^issues/(?P<issue_id>[0-9]+)/pages/$', views.PageList.as_view()),
url(r'^pages/(?P<pk>[0-9]+)/$', views.PageDetail.as_view()),
)
urlpatterns = format_suffix_patterns(urlpatterns)restAPI/models.py:
from django.db import models
class Issue(models.Model):
created = models.DateTimeField(auto_now_add=True)
revision = models.IntegerField(default = 1)
issue_date = models.DateTimeField(auto_now_add=True)
issue_image_url = models.CharField(max_length=100)
class Page(models.Model):
created = models.DateTimeField(auto_now_add=True)
page_number = models.IntegerField()
standard_page_url = models.CharField(max_length=100, default='')
large_page_url = models.CharField(max_length=100, default='')
thumbnail_url = models.CharField(max_length=100, default='')
issue = models.ForeignKey(Issue, related_name="pages")
class Meta:
ordering = ('page_number',)restAPI/serializers.py:
from rest_framework import serializers
from restAPI.models import Page, Issue
class IssueSerializer(serializers.ModelSerializer):
class Meta:
model = Issue
fields = ('id', 'created', 'revision', 'issue_date', 'issue_image_url')
class PageSerializer(serializers.ModelSerializer):
class Meta:
model = Page
fields = ('id', 'created', 'page_number', 'standard_page_url', 'large_page_url', 'thumbnail_url')restAPI/views.py:
from restAPI.models import Page, Issue
from restAPI.serializers import PageSerializer, IssueSerializer
from rest_framework import mixins
from rest_framework import generics
class IssueList(mixins.ListModelMixin,
mixins.CreateModelMixin,
generics.GenericAPIView):
queryset = Issue.objects.all()
serializer_class = IssueSerializer
def get(self, request, *args, **kwargs):
return self.list(request, *args, **kwargs)
def post(self, request, *args, **kwargs):
return self.create(request, *args, **kwargs)
class IssueDetail(mixins.RetrieveModelMixin,
mixins.UpdateModelMixin,
mixins.DestroyModelMixin,
generics.GenericAPIView):
queryset = Issue.objects.all()
serializer_class = IssueSerializer
def get(self, request, *args, **kwargs):
return self.retrieve(request, *args, **kwargs)
def put(self, request, *args, **kwargs):
return self.update(request, *args, **kwargs)
def delete(self, request, *args, **kwargs):
return self.destroy(request, *args, **kwargs)
class PageList(mixins.ListModelMixin,
mixins.CreateModelMixin,
generics.GenericAPIView):
queryset = Page.objects.all()
serializer_class = PageSerializer
def get(self, request, *args, **kwargs):
print kwargs
return self.list(request, *args, **kwargs)
def post(self, request, *args, **kwargs):
return self.create(request, *args, **kwargs)
class PageDetail(mixins.RetrieveModelMixin,
mixins.UpdateModelMixin,
mixins.DestroyModelMixin,
generics.GenericAPIView):
queryset = Page.objects.all()
serializer_class = PageSerializer
def get(self, request, *args, **kwargs):
return self.retrieve(request, *args, **kwargs)
def put(self, request, *args, **kwargs):
return self.update(request, *args, **kwargs)
def delete(self, request, *args, **kwargs):
return self.destroy(request, *args, **kwargs)如何在issues和pages之间实现这种关系
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原文链接：
https://stackoverflow.com/questions/17337843
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