gremmie@1: """
gremmie@1: This file contains the automatic admin site definitions for the gcalendar application.
bgneal@451: 
gremmie@1: """
bgneal@451: from django.conf import settings
bgneal@451: from django.conf.urls.defaults import *
gremmie@1: from django.contrib import admin
bgneal@451: from django.contrib import messages
bgneal@454: from django.contrib.sites.models import Site
bgneal@451: from django.core.urlresolvers import reverse
gremmie@1: from django.http import HttpResponse
bgneal@451: from django.http import HttpResponseRedirect
bgneal@451: from django.shortcuts import render_to_response
bgneal@451: from django.template import RequestContext
bgneal@451: 
bgneal@451: import gdata.client
gremmie@1: 
bgneal@456: from gcalendar.models import Event, AccessToken
bgneal@451: from gcalendar.forms import PasswordForm
bgneal@451: from gcalendar.calendar import Calendar
bgneal@451: from gcalendar.calendar import CalendarError
bgneal@451: from gcalendar import oauth
bgneal@451: 
bgneal@204: import bio.badges
gremmie@1: 
gremmie@1: 
bgneal@451: SCOPES = ['https://www.google.com/calendar/feeds/']
bgneal@451: 
bgneal@451: 
gremmie@1: class EventAdmin(admin.ModelAdmin):
gremmie@1:     list_display = ('what', 'user', 'start_date', 'where', 'date_submitted',
bgneal@228:             'status', 'is_approved', 'google_html')
gremmie@1:     list_filter = ('start_date', 'status')
bgneal@152:     date_hierarchy = 'start_date'
gremmie@1:     search_fields = ('what', 'where', 'description')
gremmie@1:     raw_id_fields = ('user', )
bgneal@228:     exclude = ('html', 'google_id', 'google_url')
gremmie@1:     save_on_top = True
bgneal@152:     actions = ('approve_events', )
bgneal@152: 
bgneal@152:     pending_states = {
bgneal@152:         Event.NEW: Event.NEW_APRV,
bgneal@152:         Event.EDIT_REQ: Event.EDIT_APRV,
bgneal@152:         Event.DEL_REQ: Event.DEL_APRV,
bgneal@152:     }
gremmie@1: 
gremmie@1:     def get_urls(self):
gremmie@1:         urls = super(EventAdmin, self).get_urls()
gremmie@1:         my_urls = patterns('',
bgneal@451:             url(r'^google_sync/$',
bgneal@451:                 self.admin_site.admin_view(self.google_sync),
bgneal@451:                 name="gcalendar-google_sync"),
bgneal@451:             url(r'^fetch_auth/$',
bgneal@451:                 self.admin_site.admin_view(self.fetch_auth),
bgneal@451:                 name="gcalendar-fetch_auth"),
bgneal@451:              url(r'^get_access_token/$',
bgneal@451:                 self.admin_site.admin_view(self.get_access_token),
bgneal@451:                 name="gcalendar-get_access_token"),
gremmie@1:         )
gremmie@1:         return my_urls + urls
gremmie@1: 
bgneal@152:     def approve_events(self, request, qs):
bgneal@152:         """
bgneal@152:         Ratchets the selected events forward to the approved state.
bgneal@152:         Ignores events that aren't in the proper state.
bgneal@152:         """
bgneal@389:         count = 0
bgneal@152:         for event in qs:
bgneal@152:             if event.status in self.pending_states:
bgneal@152:                 event.status = self.pending_states[event.status]
bgneal@152:                 event.save()
bgneal@152:                 count += 1
bgneal@152: 
bgneal@204:                 if event.status == Event.NEW_APRV:
bgneal@204:                     bio.badges.award_badge(bio.badges.CALENDAR_PIN, event.user)
bgneal@204: 
bgneal@152:         msg = "1 event was" if count == 1 else "%d events were" % count
bgneal@152:         msg += " approved."
bgneal@152:         self.message_user(request, msg)
bgneal@152: 
bgneal@152:     approve_events.short_description = "Approve selected events"
bgneal@152: 
bgneal@451:     def google_sync(self, request):
bgneal@451:         """View to synchronize approved event changes with Google calendar."""
bgneal@451:         events = Event.pending_events.all()
bgneal@451:         messages = []
bgneal@451:         err_msg = ''
bgneal@451:         if request.method == 'POST':
bgneal@451:             form = PasswordForm(request.POST)
bgneal@451:             if form.is_valid():
bgneal@451:                 try:
bgneal@451:                     cal = Calendar(settings.GCAL_EMAIL,
bgneal@451:                             form.cleaned_data['password'],
bgneal@451:                             settings.GCAL_CALENDAR_ID)
bgneal@451:                     cal.sync_events(events)
bgneal@451:                 except CalendarError, e:
bgneal@451:                     err_msg = e.msg
bgneal@451:                     events = Event.pending_events.all()
bgneal@451:                     form = PasswordForm()
bgneal@451:                 else:
bgneal@451:                     messages.append('All events processed successfully.')
bgneal@451:                     events = Event.objects.none()
bgneal@451:                     form = PasswordForm()
bgneal@451: 
bgneal@451:         else:
bgneal@451:             form = PasswordForm()
bgneal@451: 
bgneal@451:         return render_to_response('gcalendar/google_sync.html', {
bgneal@451:             'current_app': self.admin_site.name,
bgneal@451:             'messages': messages,
bgneal@451:             'err_msg': err_msg,
bgneal@451:             'events': events,
bgneal@451:             'form': form,
bgneal@451:             },
bgneal@451:             context_instance=RequestContext(request))
bgneal@451: 
bgneal@451:     def fetch_auth(self, request):
bgneal@451:         """
bgneal@451:         This view fetches a request token and then redirects the user to
bgneal@451:         authorize it.
bgneal@451: 
bgneal@451:         """
bgneal@454:         site = Site.objects.get_current()
bgneal@454:         callback_url = 'http://%s%s' % (site.domain,
bgneal@454:                 reverse('admin:gcalendar-get_access_token'))
bgneal@451:         try:
bgneal@451:             auth_url = oauth.fetch_auth(request, SCOPES, callback_url)
bgneal@451:         except gdata.client.Error, e:
bgneal@451:             messages.error(request, str(e))
bgneal@451:             return HttpResponseRedirect(reverse('admin:gcalendar-google_sync'))
bgneal@451:         else:
bgneal@451:             return HttpResponseRedirect(auth_url)
bgneal@451: 
bgneal@451:     def get_access_token(self, request):
bgneal@451:         """
bgneal@451:         This view is called by Google after the user has authorized us access to
bgneal@456:         their data. We call into the oauth module to upgrade the oauth token to
bgneal@451:         an access token. We then save the access token in the database and
bgneal@451:         redirect back to our admin Google sync view.
bgneal@451: 
bgneal@451:         """
bgneal@451:         try:
bgneal@451:             access_token = oauth.get_access_token(request)
bgneal@451:         except gdata.client.Error, e:
bgneal@451:             messages.error(request, str(e))
bgneal@451:         else:
bgneal@456:             try:
bgneal@456:                 token = AccessToken.objects.get(id=1)
bgneal@456:             except AccessToken.DoesNotExist:
bgneal@456:                 token = AccessToken()
bgneal@456: 
bgneal@456:             token.token = gdata.gauth.TokenToBlob(access_token)
bgneal@456:             token.auth_date = datetime.datetime.now()
bgneal@456:             token.save()
bgneal@451: 
bgneal@451:         return HttpResponseRedirect(reverse('admin:gcalendar-google_sync'))
bgneal@451: 
gremmie@1: 
gremmie@1: admin.site.register(Event, EventAdmin)
bgneal@456: admin.site.register(AccessToken)