apps/wolnelektury_core/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 self.redirect_or_refresh(request, '/',
  40                 message=_('Already logged in as user %(user)s', ) %
  41                             {'user': request.user.username})
  42         return super(LoginFormView, self).__call__(request)
  43
  44     def success(self, form, request):
  45         auth.login(request, form.get_user())
  46
  47
  48 class RegisterFormView(AjaxableFormView):
  49     form_class = UserCreationForm
  50     template = "auth/register.html"
  51     placeholdize = True
  52     title = _('Register')
  53     submit = _('Register')
  54     ajax_redirect = True
  55     form_prefix = 'register'
  56
  57     def __call__(self, request):
  58         if request.user.is_authenticated():
  59             return self.redirect_or_refresh(request, '/',
  60                 message=_('Already logged in as user %(user)s', ) %
  61                             {'user': request.user.username})
  62         return super(RegisterFormView, self).__call__(request)
  63
  64     def success(self, form, request):
  65         form.save()
  66         user = auth.authenticate(
  67             username=form.cleaned_data['username'],
  68             password=form.cleaned_data['password1']
  69         )
  70         auth.login(request, user)
  71
  72
  73 class LoginRegisterFormView(LoginFormView):
  74     template = 'auth/login_register.html'
  75     title = _('You have to be logged in to continue')
  76
  77     def extra_context(self, request, obj):
  78         return {
  79             "register_form": placeholdized(UserCreationForm(prefix='register')),
  80             "register_submit": _('Register'),
  81         }
  82
  83
  84 @never_cache
  85 def logout_then_redirect(request):
  86     auth.logout(request)
  87     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  88
  89
  90 def clock(request):
  91     """ Provides server time for jquery.countdown,
  92     in a format suitable for Date.parse()
  93     """
  94     return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))
  95
  96
  97 def publish_plan(request):
  98     cache_key = "publish_plan"
  99     plan = cache.get(cache_key)
 100
 101     if plan is None:
 102         plan = []
 103         try:
 104             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 105         except:
 106             pass
 107         else:
 108             for i in range(len(feed['entries'])):
 109                 plan.append({
 110                     'title': feed['entries'][i].title,
 111                     'link': feed['entries'][i].link,
 112                     })
 113         cache.set(cache_key, plan, 1800)
 114
 115     return render_to_response("publish_plan.html", {'plan': plan},
 116         context_instance=RequestContext(request))
 117
 118
 119 @login_required
 120 def user_settings(request):
 121     return render_to_response("user.html",
 122         context_instance=RequestContext(request))