我正在尝试使用此链接创建 Django Rest API ，但出现无效语法错误。这是我的代码：
网址.py
from django.conf.urls.defaults import *
from polls.views import *
# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()
urlpatterns = patterns('',
(r'^polls/$',index),
(r'^polls/(?P<poll_id>\d+)/$',detail),
(r'^polls/(?P<poll_id>\d+)/results/$',results),
(r'^polls/(?P<poll_id>\d+)/vote/$',vote),
(r'^admin/', include(admin.site.urls)),
(r'^xml/polls/(.*?)/?$',xml_poll_resource),
)
视图.py
from django_restapi.model_resource import Collection
from django_restapi.responder import XMLResponder
from django_restapi.responder import *
from django_restapi_tests.polls.models import Poll, Choice
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render_to_response, get_object_or_404
from polls.models import Poll, Choice
from django.http import Http404
from django.template import RequestContext
import pdb
def index(request):
latest_poll_list = Poll.objects.all().order_by('-pub_date')[:5]
return render_to_response('index.html',{'latest_poll_list': latest_poll_list})
def detail(request, poll_id):
pdb.set_trace()
p = get_object_or_404(Poll, pk=poll_id)
return render_to_response('detail.html', {'poll': p},
context_instance=RequestContext(request))
def results(request, poll_id):
return HttpResponse("Hello, world.Youre at the poll index.")
def vote(request, poll_id):
p = get_object_or_404(Poll, pk=poll_id)
try:
selected_choice = p.choice_set.get(pk=request.POST['choice'])
except (KeyError, Choice.DoesNotExist):
# Redisplay the poll voting form.
return render_to_response('polls/detail.html', {
'poll': p,
'error_message': "You didn't select a choice.",
}, context_instance=RequestContext(request))
else:
selected_choice.votes += 1
selected_choice.save()
# Always return an HttpResponseRedirect after successfully dealing
# with POST data. This prevents data from being posted twice if a
# user hits the Back button.
return HttpResponseRedirect(reverse('results', args=(p.id,)))
xml_poll_resource = Collection(
queryset = Poll.objects.all(),
permitted_methods = ('GET', 'POST', 'PUT', 'DELETE'),
responder = XMLResponder(paginate_by = 10))
)
模型.py
from django.db import models
class Poll(models.Model):
question = models.CharField(max_length=200)
pub_date = models.DateTimeField('date published')
def __unicode__(self):
return self.question
class Choice(models.Model):
poll = models.ForeignKey(Poll)
choice = models.CharField(max_length=200)
votes = models.IntegerField()
def __unicode__(self):
return self.choice
此应用程序基于 Django 网站中提供的教程。它运行良好，但一旦我实现了其余 API 的逻辑，它就开始失败。
(r'^xml/polls/(.*?)/?$',xml_poll_resource),
我正在尝试的网址：http://127.0.0.1:8000/xml/polls/
/xml/polls/ 无效语法处的错误 SyntaxError（views.py，第 49 行）
Request Method: GET
Request URL: http://127.0.0.1:8000/xml/polls/
Django Version: 1.3.1
Exception Type: SyntaxError
Exception Value: invalid syntax (views.py, line 49)