wolnelektury/views.py

   1 from datetime import datetime
   2 import feedparser
   3
   4 from django.contrib import auth
   5 from django.contrib.auth.decorators import login_required
   6 from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
   7 from django.core.cache import cache
   8 from django.http import HttpResponse, HttpResponseRedirect
   9 from django.shortcuts import render_to_response
  10 from django.template import RequestContext
  11 from django.utils.http import urlquote_plus
  12 from django.utils.translation import ugettext_lazy as _
  13 from django.views.decorators.cache import never_cache
  14
  15 from django.conf import settings
  16 from ajaxable.utils import AjaxableFormView
  17 from catalogue.models import Book
  18 from ajaxable.utils import placeholdized
  19
  20
  21 @never_cache
  22 def main_page(request):
  23     last_published = Book.objects.filter(parent=None).order_by('-created_at')[:4]
  24
  25     return render_to_response("main_page.html", locals(),
  26         context_instance=RequestContext(request))
  27
  28
  29 class LoginFormView(AjaxableFormView):
  30     form_class = AuthenticationForm
  31     template = "auth/login.html"
  32     placeholdize = True
  33     title = _('Sign in')
  34     submit = _('Sign in')
  35     ajax_redirect = True
  36
  37     def __call__(self, request):
  38         if request.user.is_authenticated():
  39             return HttpResponseRedirect('/')
  40         return super(LoginFormView, self).__call__(request)
  41
  42     def success(self, form, request):
  43         auth.login(request, form.get_user())
  44
  45
  46 class RegisterFormView(AjaxableFormView):
  47     form_class = UserCreationForm
  48     placeholdize = True
  49     title = _('Register')
  50     submit = _('Register')
  51     ajax_redirect = True
  52     form_prefix = 'register'
  53
  54     def __call__(self, request):
  55         if request.user.is_authenticated():
  56             return HttpResponseRedirect('/')
  57         return super(RegisterFormView, self).__call__(request)
  58
  59     def success(self, form, request):
  60         form.save()
  61         user = auth.authenticate(
  62             username=form.cleaned_data['username'],
  63             password=form.cleaned_data['password1']
  64         )
  65         auth.login(request, user)
  66
  67
  68 class LoginRegisterFormView(LoginFormView):
  69     template = 'auth/login_register.html'
  70     title = _('You have to be logged in to continue')
  71
  72     def extra_context(self, request, obj):
  73         return {
  74             "register_form": placeholdized(UserCreationForm(prefix='register')),
  75             "register_submit": _('Register'),
  76         }
  77
  78
  79 @never_cache
  80 def logout_then_redirect(request):
  81     auth.logout(request)
  82     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  83
  84
  85 def clock(request):
  86     """ Provides server time for jquery.countdown,
  87     in a format suitable for Date.parse()
  88     """
  89     return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))
  90
  91
  92 def publish_plan(request):
  93     cache_key = "publish_plan"
  94     plan = cache.get(cache_key)
  95
  96     if plan is None:
  97         plan = []
  98         try:
  99             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 100         except:
 101             pass
 102         else:
 103             for i in range(len(feed['entries'])):
 104                 plan.append({
 105                     'title': feed['entries'][i].title,
 106                     'link': feed['entries'][i].link,
 107                     })
 108         cache.set(cache_key, plan, 1800)
 109
 110     return render_to_response("publish_plan.html", {'plan': plan},
 111         context_instance=RequestContext(request))
 112
 113
 114 @login_required
 115 def user_settings(request):
 116     return render_to_response("user.html",
 117         context_instance=RequestContext(request))