wolnelektury/views.py

   1 from datetime import datetime
   2 import feedparser
   3
   4 from django.contrib import auth
   5 from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
   6 from django.core.cache import cache
   7 from django.http import HttpResponse, HttpResponseRedirect
   8 from django.shortcuts import render_to_response
   9 from django.template import RequestContext
  10 from django.utils.http import urlquote_plus
  11 from django.utils.translation import ugettext_lazy as _
  12 from django.views.decorators.cache import never_cache
  13
  14 from django.conf import settings
  15 from ajaxable.utils import AjaxableFormView
  16 from catalogue.models import Book
  17
  18
  19 def main_page(request):
  20     last_published = Book.objects.exclude(html_file='').order_by('-created_at')[:4]
  21
  22     return render_to_response("main_page.html", locals(),
  23         context_instance=RequestContext(request))
  24
  25
  26 class LoginFormView(AjaxableFormView):
  27     form_class = AuthenticationForm
  28     title = _('Sign in')
  29     submit = _('Sign in')
  30     ajax_redirect = True
  31
  32     def __call__(self, request):
  33         if request.user.is_authenticated():
  34             return HttpResponseRedirect('/')
  35         return super(LoginFormView, self).__call__(request)
  36
  37     def success(self, form, request):
  38         auth.login(request, form.get_user())
  39
  40
  41 class RegisterFormView(AjaxableFormView):
  42     form_class = UserCreationForm
  43     title = _('Register')
  44     submit = _('Register')
  45     ajax_redirect = True
  46
  47     def __call__(self, request):
  48         if request.user.is_authenticated():
  49             return HttpResponseRedirect('/')
  50         return super(RegisterFormView, self).__call__(request)
  51
  52     def success(self, form, request):
  53         user = form.save()
  54         user = auth.authenticate(
  55             username=form.cleaned_data['username'],
  56             password=form.cleaned_data['password1']
  57         )
  58         auth.login(request, user)
  59
  60
  61 @never_cache
  62 def logout_then_redirect(request):
  63     auth.logout(request)
  64     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  65
  66
  67 def clock(request):
  68     """ Provides server time for jquery.countdown,
  69     in a format suitable for Date.parse()
  70     """
  71     return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))
  72
  73
  74 def publish_plan(request):
  75     cache_key = "publish_plan"
  76     plan = cache.get(cache_key)
  77
  78     if plan is None:
  79         plan = []
  80         try:
  81             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
  82         except:
  83             pass
  84         else:
  85             for i in range(len(feed['entries'])):
  86                 print i
  87                 plan.append({
  88                     'title': feed['entries'][i].title,
  89                     'link': feed['entries'][i].link,
  90                     })
  91         cache.set(cache_key, plan, 1800)
  92
  93     return render_to_response("publish_plan.html", {'plan': plan},
  94         context_instance=RequestContext(request))