panikweb/views.py

   1 from datetime import datetime, timedelta, date
   2 import math
   3 import random
   4 import os
   5 import stat
   6 import time
   7 import urlparse
   8
   9 from django.core.urlresolvers import reverse
  10 from django.conf import settings
  11 from django.http import Http404
  12 from django.views.decorators.cache import cache_control
  13 from django.views.generic.base import TemplateView
  14 from django.views.generic.detail import DetailView
  15 from django.views.decorators.csrf import csrf_exempt
  16 from django.views.generic.dates import _date_from_string
  17 from django.views.generic.dates import MonthArchiveView
  18
  19 from django.core.paginator import Paginator
  20
  21 from django.contrib.sites.models import Site
  22 from django.contrib.syndication.views import Feed, add_domain
  23 from django.utils.feedgenerator import Atom1Feed, Rss201rev2Feed
  24
  25 from haystack.query import SearchQuerySet
  26 from jsonresponse import to_json
  27
  28 from emissions.models import Category, Emission, Episode, Diffusion, SoundFile, \
  29         Schedule, Nonstop, NewsItem, NewsCategory, Focus
  30
  31 from emissions.utils import whatsonair, period_program
  32
  33 from newsletter.forms import SubscribeForm
  34 from nonstop.utils import get_current_nonstop_track
  35 from nonstop.models import SomaLogLine
  36
  37 from panikombo.models import ItemTopik
  38
  39 from . import utils
  40
  41
  42 class EmissionMixin:
  43     def get_emission_context(self, emission, episode_ids=None):
  44         context = {}
  45
  46         # get all episodes, with an additional attribute to get the date of
  47         # their first diffusion
  48         episodes_queryset = Episode.objects.select_related()
  49         if episode_ids is not None:
  50             episodes_queryset = episodes_queryset.filter(id__in=episode_ids)
  51         else:
  52             episodes_queryset = episodes_queryset.filter(emission=emission)
  53
  54         context['episodes'] = \
  55                 episodes_queryset.extra(select={
  56                         'first_diffusion': 'emissions_diffusion.datetime',
  57                         },
  58                         select_params=(False, True),
  59                         where=['''datetime = (SELECT MIN(datetime)
  60                                                 FROM emissions_diffusion
  61                                                WHERE episode_id = emissions_episode.id
  62                                                  AND datetime <= CURRENT_TIMESTAMP)'''],
  63                         tables=['emissions_diffusion'],
  64                     ).order_by('-first_diffusion').distinct()
  65
  66         context['futurEpisodes'] = \
  67                 episodes_queryset.extra(select={
  68                         'first_diffusion': 'emissions_diffusion.datetime',
  69                         },
  70                         select_params=(False, True),
  71                         where=['''datetime = (SELECT MIN(datetime)
  72                                                 FROM emissions_diffusion
  73                                                WHERE episode_id = emissions_episode.id
  74                                                  AND datetime > CURRENT_TIMESTAMP)'''],
  75                         tables=['emissions_diffusion'],
  76                     ).order_by('first_diffusion').distinct()
  77
  78         context['all_episodes'] = \
  79                 episodes_queryset.extra(select={
  80                         'first_diffusion': 'emissions_diffusion.datetime',
  81                         },
  82                         select_params=(False, True),
  83                         where=['''datetime = (SELECT MIN(datetime)
  84                                                 FROM emissions_diffusion
  85                                                WHERE episode_id = emissions_episode.id
  86                                              )'''],
  87                         tables=['emissions_diffusion'],
  88                     ).order_by('first_diffusion')
  89
  90         # get all related soundfiles in a single query
  91         soundfiles = {}
  92         if episode_ids is not None:
  93             for episode_id in episode_ids:
  94                 soundfiles[episode_id] = None
  95         else:
  96             for episode in Episode.objects.filter(emission=emission):
  97                 soundfiles[episode.id] = None
  98
  99         for soundfile in SoundFile.objects.select_related().filter(podcastable=True,
 100                 fragment=False, episode__emission=emission):
 101             soundfiles[soundfile.episode_id] = soundfile
 102
 103         Episode.set_prefetched_soundfiles(soundfiles)
 104
 105         #context['futurEpisodes'] = context['episodes'].filter(first_diffusion='2013')[0:3]
 106
 107         return context
 108
 109
 110 class EmissionDetailView(DetailView, EmissionMixin):
 111     model = Emission
 112
 113     def get_context_data(self, **kwargs):
 114         context = super(EmissionDetailView, self).get_context_data(**kwargs)
 115         context['schedules'] = Schedule.objects.select_related().filter(
 116                 emission=self.object).order_by('rerun', 'datetime')
 117         context['news'] = NewsItem.objects.all().filter(emission=self.object.id).order_by('-date')[:3]
 118         try:
 119             nonstop_object = Nonstop.objects.get(slug=self.object.slug)
 120         except Nonstop.DoesNotExist:
 121             pass
 122         else:
 123             today = date.today()
 124             dates = [today - timedelta(days=x) for x in range(7)]
 125             if datetime.now().time() < nonstop_object.start:
 126                 dates = dates[1:]
 127             context['nonstop'] = nonstop_object
 128             context['nonstop_dates'] = dates
 129         context.update(self.get_emission_context(self.object))
 130         return context
 131 emission = EmissionDetailView.as_view()
 132
 133 class EpisodeDetailView(DetailView, EmissionMixin):
 134     model = Episode
 135
 136     def get_context_data(self, **kwargs):
 137         context = super(EpisodeDetailView, self).get_context_data(**kwargs)
 138         context['diffusions'] = Diffusion.objects.select_related().filter(
 139                 episode=self.object.id).order_by('datetime')
 140         try:
 141             context['emission'] = context['episode'].emission
 142         except Emission.DoesNotExist:
 143             raise Http404()
 144         if self.kwargs.get('emission_slug') != context['emission'].slug:
 145             raise Http404()
 146         context.update(self.get_emission_context(context['emission']))
 147         context['topiks'] = [x.topik for x in ItemTopik.objects.filter(episode=self.object)]
 148         return context
 149 episode = EpisodeDetailView.as_view()
 150
 151
 152 class NonstopPlaylistView(TemplateView):
 153     template_name = 'nonstop_playlist.html'
 154
 155     def get_context_data(self, **kwargs):
 156         context = super(NonstopPlaylistView, self).get_context_data(**kwargs)
 157         try:
 158             context['emission'] = Emission.objects.get(slug=kwargs.get('slug'))
 159         except Emission.DoesNotExist:
 160             raise Http404()
 161         context['date'] = date(int(kwargs.get('year')),
 162                 int(kwargs.get('month')), int(kwargs.get('day')))
 163         context['future'] = (context['date'] >= date.today())
 164
 165         nonstop_object = Nonstop.objects.get(slug=kwargs.get('slug'))
 166         start = datetime(
 167                 int(kwargs.get('year')), int(kwargs.get('month')), int(kwargs.get('day')),
 168                 nonstop_object.start.hour, nonstop_object.start.minute)
 169         end = datetime(
 170                 int(kwargs.get('year')), int(kwargs.get('month')), int(kwargs.get('day')),
 171                 nonstop_object.end.hour, nonstop_object.end.minute)
 172         if end < start:
 173             end = end + timedelta(days=1)
 174         context['tracks'] = SomaLogLine.objects.filter(
 175                 play_timestamp__gte=start,
 176                 play_timestamp__lte=end,
 177                 on_air=True).select_related()
 178         return context
 179
 180 nonstop_playlist = NonstopPlaylistView.as_view()
 181
 182 class EmissionEpisodesDetailView(DetailView, EmissionMixin):
 183     model = Emission
 184     template_name = 'emissions/episodes.html'
 185
 186     def get_context_data(self, **kwargs):
 187         context = super(EmissionEpisodesDetailView, self).get_context_data(**kwargs)
 188         context['schedules'] = Schedule.objects.select_related().filter(
 189                 emission=self.object).order_by('rerun', 'datetime')
 190
 191         context['search_query'] = self.request.GET.get('q')
 192         if context['search_query']:
 193             # query string
 194             sqs = SearchQuerySet().models(Episode).filter(
 195                     emission_slug_exact=self.object.slug, text=context['search_query'])
 196             episode_ids = [x.pk for x in sqs]
 197         else:
 198             episode_ids = None
 199
 200         context.update(self.get_emission_context(self.object, episode_ids=episode_ids))
 201         return context
 202 emissionEpisodes = EmissionEpisodesDetailView.as_view()
 203
 204
 205 class SoundFileEmbedView(DetailView):
 206     model = SoundFile
 207     template_name = 'soundfiles/embed.html'
 208
 209     def get_context_data(self, **kwargs):
 210         context = super(SoundFileEmbedView, self).get_context_data(**kwargs)
 211         if self.kwargs.get('episode_slug') != self.object.episode.slug:
 212             raise Http404()
 213         if self.kwargs.get('emission_slug') != self.object.episode.emission.slug:
 214             raise Http404()
 215         context['episode'] = self.object.episode
 216         return context
 217 soundfile_embed = SoundFileEmbedView.as_view()
 218
 219
 220 class SoundFileDialogEmbedView(DetailView):
 221     model = SoundFile
 222     template_name = 'soundfiles/dialog-embed.html'
 223
 224     def get_context_data(self, **kwargs):
 225         context = super(SoundFileDialogEmbedView, self).get_context_data(**kwargs)
 226         if self.kwargs.get('episode_slug') != self.object.episode.slug:
 227             raise Http404()
 228         if self.kwargs.get('emission_slug') != self.object.episode.emission.slug:
 229             raise Http404()
 230         context['episode'] = self.object.episode
 231         return context
 232 soundfile_dlg_embed = SoundFileDialogEmbedView.as_view()
 233
 234
 235
 236 class ProgramView(TemplateView):
 237     template_name = 'program.html'
 238
 239     def get_context_data(self, year=None, week=None, **kwargs):
 240         context = super(ProgramView, self).get_context_data(**kwargs)
 241
 242         context['weekday'] = datetime.today().weekday()
 243
 244         context['week'] = week = int(week) if week is not None else datetime.today().isocalendar()[1]
 245         context['year'] = year = int(year) if year is not None else datetime.today().isocalendar()[0]
 246         context['week_first_day'] = utils.tofirstdayinisoweek(year, week)
 247         context['week_last_day'] = context['week_first_day'] + timedelta(days=6)
 248
 249         return context
 250
 251 program = ProgramView.as_view()
 252
 253 class TimeCell:
 254     nonstop = None
 255     w = 1
 256     h = 1
 257     time_label = None
 258
 259     def __init__(self, i, j):
 260         self.x = i
 261         self.y = j
 262         self.schedules = []
 263
 264     def add_schedule(self, schedule):
 265         end_time = schedule.datetime + timedelta(
 266                 minutes=schedule.get_duration())
 267         self.time_label = '%02d:%02d-%02d:%02d' % (
 268                 schedule.datetime.hour,
 269                 schedule.datetime.minute,
 270                 end_time.hour,
 271                 end_time.minute)
 272         self.schedules.append(schedule)
 273
 274     def __unicode__(self):
 275         if self.schedules:
 276             return ', '.join([x.emission.title for x in self.schedules])
 277         else:
 278             return self.nonstop
 279
 280     def __eq__(self, other):
 281         return (unicode(self) == unicode(other) and self.time_label == other.time_label)
 282
 283
 284 class Grid(TemplateView):
 285     template_name = 'grid.html'
 286
 287     def get_context_data(self, **kwargs):
 288         context = super(Grid, self).get_context_data(**kwargs)
 289
 290         nb_lines = 2 * 24 # the cells are half hours
 291         grid = []
 292
 293         times = ['%02d:%02d' % (x/2, x%2*30) for x in range(nb_lines)]
 294         # start grid after the night programs
 295         times = times[2*Schedule.DAY_HOUR_START:] + times[:2*Schedule.DAY_HOUR_START]
 296
 297         nonstops = []
 298         for nonstop in Nonstop.objects.all():
 299             if nonstop.start == nonstop.end:
 300                 continue
 301             if nonstop.start < nonstop.end:
 302                 nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
 303                                  nonstop.end.hour + nonstop.end.minute/60.,
 304                                  nonstop.title, nonstop.slug])
 305             else:
 306                 # crossing midnight
 307                 nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
 308                                  24,
 309                                  nonstop.title, nonstop.slug])
 310                 nonstops.append([0,
 311                                  nonstop.end.hour + nonstop.end.minute/60.,
 312                                  nonstop.title, nonstop.slug])
 313         nonstops.sort()
 314
 315         for i in range(nb_lines):
 316             grid.append([])
 317             for j in range(7):
 318                 grid[-1].append(TimeCell(i, j))
 319
 320             nonstop = [x for x in nonstops if i>=x[0]*2 and i<x[1]*2][0]
 321             for time_cell in grid[-1]:
 322                 time_cell.nonstop = nonstop[2]
 323                 time_cell.nonstop_slug = nonstop[3]
 324                 if nonstop[1] == 5:
 325                     # the one ending at 5am will be cut down, so we inscribe
 326                     # its duration manually
 327                     time_cell.time_label = '%02d:00-%02d:00' % (
 328                             nonstop[0], nonstop[1])
 329
 330         for schedule in Schedule.objects.prefetch_related(
 331                 'emission__categories').select_related().order_by('datetime'):
 332             row_start = schedule.datetime.hour * 2 + \
 333                     int(math.ceil(schedule.datetime.minute / 30))
 334             day_no = schedule.get_weekday()
 335
 336             for step in range(int(math.ceil(schedule.get_duration() / 30.))):
 337                 if grid[(row_start+step)%nb_lines][day_no] is None:
 338                     grid[(row_start+step)%nb_lines][day_no] = TimeCell()
 339                 grid[(row_start+step)%nb_lines][day_no].add_schedule(schedule)
 340
 341         # start grid after the night programs
 342         grid = grid[2*Schedule.DAY_HOUR_START:] + grid[:2*Schedule.DAY_HOUR_START]
 343
 344         # look for the case where the same emission has different schedules for
 345         # the same time cell, for example if it lasts one hour the first week,
 346         # and two hours the third week.
 347         for i in range(nb_lines):
 348             grid[i] = [x for x in grid[i] if x is not None]
 349             for j, cell in enumerate(grid[i]):
 350                 if grid[i][j] is None:
 351                     continue
 352                 if len(grid[i][j].schedules) > 1:
 353                     time_cell_emissions = {}
 354                     for schedule in grid[i][j].schedules:
 355                         if not schedule.emission.id in time_cell_emissions:
 356                             time_cell_emissions[schedule.emission.id] = []
 357                         time_cell_emissions[schedule.emission.id].append(schedule)
 358                     for schedule_list in time_cell_emissions.values():
 359                         if len(schedule_list) == 1:
 360                             continue
 361                         # here it is, same cell, same emission, several
 362                         # schedules
 363                         schedule_list.sort(lambda x,y: cmp(x.get_duration(), y.get_duration()))
 364
 365                         schedule = schedule_list[0]
 366                         end_time = schedule.datetime + timedelta(
 367                                 minutes=schedule.get_duration())
 368                         grid[i][j].time_label = '%02d:%02d-%02d:%02d' % (
 369                                 schedule.datetime.hour,
 370                                 schedule.datetime.minute,
 371                                 end_time.hour,
 372                                 end_time.minute)
 373
 374                         for schedule in schedule_list[1:]:
 375                             grid[i][j].schedules.remove(schedule)
 376                             end_time = schedule.datetime + timedelta(minutes=schedule.get_duration())
 377                             schedule_list[0].time_label_extra = ', -%02d:%02d %s' % (
 378                                     end_time.hour, end_time.minute, schedule.weeks_string)
 379
 380         # merge adjacent
 381
 382         # 1st thing is to merge cells on the same line, this will mostly catch
 383         # consecutive nonstop cells
 384         for i in range(nb_lines):
 385             for j, cell in enumerate(grid[i]):
 386                 if grid[i][j] is None:
 387                     continue
 388                 t = 1
 389                 try:
 390                     # if the cells are identical, they are removed from the
 391                     # grid, and current cell width is increased
 392                     while grid[i][j+t] == cell:
 393                         cell.w += 1
 394                         grid[i][j+t] = None
 395                         t += 1
 396                 except IndexError:
 397                     pass
 398
 399             # once we're done we remove empty cells
 400             grid[i] = [x for x in grid[i] if x is not None]
 401
 402         # 2nd thing is to merge cells vertically, this is emissions that last
 403         # for more than 30 minutes
 404         for i in range(nb_lines):
 405             grid[i] = [x for x in grid[i] if x is not None]
 406             for j, cell in enumerate(grid[i]):
 407                 if grid[i][j] is None:
 408                     continue
 409                 t = 1
 410                 try:
 411                     while True:
 412                         # we look if the next time cell has the same emissions
 413                         same_cell_below = [(bj, x) for bj, x in enumerate(grid[i+cell.h])
 414                                            if x == cell and x.y == cell.y and x.w == cell.w]
 415                         if same_cell_below:
 416                             # if the cell was identical, we remove it and
 417                             # increase current cell height
 418                             bj, same_cell_below = same_cell_below[0]
 419                             del grid[i+cell.h][bj]
 420                             cell.h += 1
 421                         else:
 422                             # if the cell is different, we have a closer look
 423                             # to it, so we can remove emissions that will
 424                             # already be mentioned in the current cell.
 425                             #
 426                             # For example:
 427                             #  - 7am30, seuls contre tout, 1h30
 428                             #  - 8am, du pied gauche & la voix de la rue, 1h
 429                             # should produce: (this is case A)
 430                             #  |      7:30-9:00      |
 431                             #  |  seuls contre tout  |
 432                             #  |---------------------|
 433                             #  |      8:00-9:00      |
 434                             #  |   du pied gauche    |
 435                             #  |  la voix de la rue  |
 436                             #
 437                             # On the other hand, if all three emissions started
 438                             # at 7am30, we want: (this is case B)
 439                             #  |      7:30-9:00      |
 440                             #  |  seuls contre tout  |
 441                             #  |   du pied gauche    |
 442                             #  |  la voix de la rue  |
 443                             # that is we merge all of them, ignoring the fact
 444                             # that the other emissions will stop at 8am30
 445                             current_cell_schedules = set(grid[i][j].schedules)
 446                             current_cell_emissions = set([x.emission for x in current_cell_schedules])
 447                             cursor = 1
 448                             while True and current_cell_schedules:
 449                                 same_cell_below = [x for x in grid[i+cursor] if x.y == grid[i][j].y]
 450                                 if not same_cell_below:
 451                                     cursor += 1
 452                                     continue
 453                                 same_cell_below = same_cell_below[0]
 454                                 same_cell_below_emissions = set([x.emission for x in same_cell_below.schedules])
 455
 456                                 if current_cell_emissions.issubset(same_cell_below_emissions):
 457                                     # this handles case A (see comment above)
 458                                     for schedule in current_cell_schedules:
 459                                         if schedule in same_cell_below.schedules:
 460                                             same_cell_below.schedules.remove(schedule)
 461                                 elif same_cell_below_emissions and \
 462                                         current_cell_emissions.issuperset(same_cell_below_emissions):
 463                                     # this handles case B (see comment above)
 464                                     # we set the cell time label to the longest
 465                                     # period
 466                                     grid[i][j].time_label = same_cell_below.time_label
 467                                     # then we sort emissions so the longest are
 468                                     # put first
 469                                     grid[i][j].schedules.sort(
 470                                             lambda x, y: -cmp(x.get_duration(), y.get_duration()))
 471                                     # then we add individual time labels to the
 472                                     # other schedules
 473                                     for schedule in current_cell_schedules:
 474                                         if schedule not in same_cell_below.schedules:
 475                                             end_time = schedule.datetime + timedelta(
 476                                                     minutes=schedule.get_duration())
 477                                             schedule.time_label = '%02d:%02d-%02d:%02d' % (
 478                                                     schedule.datetime.hour,
 479                                                     schedule.datetime.minute,
 480                                                     end_time.hour,
 481                                                     end_time.minute)
 482                                     grid[i][j].h += 1
 483                                     grid[i+cursor].remove(same_cell_below)
 484                                 elif same_cell_below_emissions and \
 485                                         current_cell_emissions.intersection(same_cell_below_emissions):
 486                                     same_cell_below.schedules = [x for x in
 487                                             same_cell_below.schedules if
 488                                             x.emission not in
 489                                             current_cell_emissions or
 490                                             x.get_duration() < 30]
 491                                 cursor += 1
 492                             break
 493                 except IndexError:
 494                     pass
 495
 496         # cut night at 3am
 497         grid = grid[:42]
 498         times = times[:42]
 499
 500         context['grid'] = grid
 501         context['times'] = times
 502         context['categories'] = Category.objects.all()
 503         context['weekdays'] = ['Lundi', 'Mardi', 'Mercredi', 'Jeudi',
 504                 'Vendredi', 'Samedi', 'Dimanche']
 505
 506         return context
 507
 508 grid = Grid.as_view()
 509
 510
 511 class Home(TemplateView):
 512     template_name = 'home.html'
 513
 514     def get_context_data(self, **kwargs):
 515         context = super(Home, self).get_context_data(**kwargs)
 516         context['emissions'] = Emission.objects.filter(archived=False).order_by('?') #-creation_timestamp')[:3]
 517         context['newsitems'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')[:3]
 518
 519         context['soundfiles'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 520                 podcastable=True, fragment=False) \
 521                 .select_related().extra(select={
 522                     'first_diffusion': 'emissions_diffusion.datetime', },
 523                     select_params=(False, True),
 524                     where=['''datetime = (SELECT MIN(datetime)
 525                                             FROM emissions_diffusion
 526                                         WHERE episode_id = emissions_episode.id)'''],
 527                     tables=['emissions_diffusion'],).order_by('-creation_timestamp').distinct() [:3]
 528
 529         context['newsletter_form'] = SubscribeForm()
 530
 531         return context
 532
 533 home = Home.as_view()
 534
 535 class NewsItemView(DetailView):
 536     model = NewsItem
 537     def get_context_data(self, **kwargs):
 538         context = super(NewsItemView, self).get_context_data(**kwargs)
 539         context['categories'] = NewsCategory.objects.all()
 540         context['news'] = NewsItem.objects.all().order_by('-date')
 541         context['topiks'] = [x.topik for x in ItemTopik.objects.filter(newsitem=self.object)]
 542         return context
 543 newsitemview = NewsItemView.as_view()
 544
 545 class News(TemplateView):
 546     template_name = 'news.html'
 547     def get_context_data(self, **kwargs):
 548         context = super(News, self).get_context_data(**kwargs)
 549         context['focus'] = NewsItem.objects.exclude(date__gt=date.today()).filter(got_focus__isnull=False).select_related('category').order_by('-date')[:10]
 550         context['news'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')
 551         return context
 552
 553 news = News.as_view()
 554
 555
 556 class Agenda(TemplateView):
 557     template_name = 'agenda.html'
 558     def get_context_data(self, **kwargs):
 559         context = super(Agenda, self).get_context_data(**kwargs)
 560         context['agenda'] = NewsItem.objects.exclude(date__gt=date.today()).filter(
 561                 event_date__gte=date.today()).order_by('date')[:20]
 562         context['news'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')
 563         context['previous_month'] = datetime.today().replace(day=1) - timedelta(days=2)
 564         return context
 565
 566 agenda = Agenda.as_view()
 567
 568
 569 class AgendaByMonth(MonthArchiveView):
 570     template_name = 'agenda.html'
 571     queryset = NewsItem.objects.filter(event_date__isnull=False)
 572     allow_future = True
 573     date_field = 'event_date'
 574     month_format = '%m'
 575
 576     def get_context_data(self, **kwargs):
 577         context = super(AgendaByMonth, self).get_context_data(**kwargs)
 578         context['agenda'] = context['object_list']
 579         context['news'] = NewsItem.objects.all().order_by('-date')
 580         return context
 581
 582 agenda_by_month = AgendaByMonth.as_view()
 583
 584
 585 class Emissions(TemplateView):
 586     template_name = 'emissions.html'
 587
 588     def get_context_data(self, **kwargs):
 589         context = super(Emissions, self).get_context_data(**kwargs)
 590         context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=False).order_by('title')
 591         context['categories'] = Category.objects.all()
 592         return context
 593
 594 emissions = Emissions.as_view()
 595
 596 class EmissionsArchives(TemplateView):
 597     template_name = 'emissions/archives.html'
 598
 599     def get_context_data(self, **kwargs):
 600         context = super(EmissionsArchives, self).get_context_data(**kwargs)
 601         context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=True).order_by('title')
 602         context['categories'] = Category.objects.all()
 603         return context
 604 emissionsArchives = EmissionsArchives.as_view()
 605
 606
 607 class Listen(TemplateView):
 608     template_name = 'listen.html'
 609
 610     def get_context_data(self, **kwargs):
 611         context = super(Listen, self).get_context_data(**kwargs)
 612         context['focus'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 613                 podcastable=True, got_focus__isnull=False) \
 614                 .select_related().extra(select={
 615                     'first_diffusion': 'emissions_diffusion.datetime', },
 616                     select_params=(False, True),
 617                     where=['''datetime = (SELECT MIN(datetime)
 618                                             FROM emissions_diffusion
 619                                         WHERE episode_id = emissions_episode.id)'''],
 620                     tables=['emissions_diffusion'],).order_by('-first_diffusion').distinct() [:10]
 621         context['soundfiles'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 622                 podcastable=True) \
 623                 .select_related().extra(select={
 624                     'first_diffusion': 'emissions_diffusion.datetime', },
 625                     select_params=(False, True),
 626                     where=['''datetime = (SELECT MIN(datetime)
 627                                             FROM emissions_diffusion
 628                                         WHERE episode_id = emissions_episode.id)'''],
 629                     tables=['emissions_diffusion'],).order_by('-creation_timestamp').distinct()
 630
 631
 632         return context
 633
 634 listen = Listen.as_view()
 635
 636 @cache_control(max_age=15)
 637 @csrf_exempt
 638 @to_json('api')
 639 def onair(request):
 640     d = whatsonair()
 641     if d.get('episode'):
 642         d['episode'] = {
 643             'title': d['episode'].title,
 644             'url': d['episode'].get_absolute_url()
 645         }
 646     if d.get('emission'):
 647         chat_url = None
 648         if d['emission'].chat_open:
 649             chat_url = reverse('emission-chat', kwargs={'slug': d['emission'].slug})
 650         d['emission'] = {
 651             'title': d['emission'].title,
 652             'url': d['emission'].get_absolute_url(),
 653             'chat': chat_url,
 654         }
 655     if d.get('nonstop'):
 656         d['nonstop'] = {
 657             'title': d['nonstop'].title,
 658         }
 659         d.update(get_current_nonstop_track())
 660     if d.get('current_slot'):
 661         del d['current_slot']
 662     return d
 663
 664
 665 class NewsItemDetailView(DetailView):
 666     model = NewsItem
 667
 668 newsitem = NewsItemDetailView.as_view()
 669
 670 class RssCustomPodcastsFeed(Rss201rev2Feed):
 671     def add_root_elements(self, handler):
 672         super(RssCustomPodcastsFeed, self).add_root_elements(handler)
 673         emission = self.feed.get('emission')
 674         if emission and emission.image and emission.image.url:
 675             image_url = emission.image.url
 676         else:
 677             image_url = '/static/img/logo-panik-500.png'
 678         image_url = urlparse.urljoin(self.feed['link'], image_url)
 679         handler.startElement('image', {})
 680         if emission:
 681             handler.addQuickElement('title', emission.title)
 682         else:
 683             handler.addQuickElement('title', 'Radio Panik')
 684         handler.addQuickElement('url', image_url)
 685         handler.endElement('image')
 686         handler.addQuickElement('itunes:image', None, {'href': image_url})
 687         if emission and emission.subtitle:
 688             handler.addQuickElement('itunes:subtitle', emission.subtitle)
 689
 690     def root_attributes(self):
 691         attrs = super(RssCustomPodcastsFeed, self).root_attributes()
 692         attrs['xmlns:dc'] = 'http://purl.org/dc/elements/1.1/'
 693         attrs['xmlns:itunes'] = 'http://www.itunes.com/dtds/podcast-1.0.dtd'
 694         return attrs
 695
 696     def add_item_elements(self, handler, item):
 697         super(RssCustomPodcastsFeed, self).add_item_elements(handler, item)
 698         explicit = 'no'
 699         for tag in item.get('tags') or []:
 700             handler.addQuickElement('dc:subject', tag)
 701             if tag == 'explicit':
 702                 explicit = 'yes'
 703         if item.get('tags'):
 704             handler.addQuickElement('itunes:keywords', ','.join(item.get('tags')))
 705         handler.addQuickElement('itunes:explicit', explicit)
 706         episode = item.get('episode')
 707         if episode and episode.image and episode.image.url:
 708             image_url = urlparse.urljoin(self.feed['link'], episode.image.url)
 709             handler.addQuickElement('itunes:image', None, {'href': image_url})
 710         soundfile = item.get('soundfile')
 711         if soundfile.duration:
 712             handler.addQuickElement('itunes:duration', '%02d:%02d:%02d' % (
 713                 soundfile.duration / 3600,
 714                 soundfile.duration % 3600 / 60,
 715                 soundfile.duration % 60))
 716
 717
 718 class PodcastsFeed(Feed):
 719     title = 'Radio Panik - Podcasts'
 720     link = '/'
 721     description_template = 'feed/soundfile.html'
 722     feed_type = RssCustomPodcastsFeed
 723
 724     def items(self):
 725         return SoundFile.objects.select_related().filter(
 726                 podcastable=True).order_by('-creation_timestamp')[:20]
 727
 728     def item_title(self, item):
 729         if item.fragment:
 730             return '%s - %s' % (item.title, item.episode.title)
 731         return item.episode.title
 732
 733     def item_link(self, item):
 734         return item.episode.get_absolute_url()
 735
 736     def item_enclosure_url(self, item):
 737         current_site = Site.objects.get(id=settings.SITE_ID)
 738         return add_domain(current_site.domain, item.get_format_url('mp3'))
 739
 740     def item_enclosure_length(self, item):
 741         sound_path = item.get_format_path('mp3')
 742         try:
 743             return os.stat(sound_path)[stat.ST_SIZE]
 744         except OSError:
 745             return 0
 746
 747     def item_enclosure_mime_type(self, item):
 748         return 'audio/mpeg'
 749
 750     def item_pubdate(self, item):
 751         return item.creation_timestamp
 752
 753     def item_extra_kwargs(self, item):
 754         return {'tags': [x.name for x in item.episode.tags.all()],
 755                 'soundfile': item,
 756                 'episode': item.episode}
 757
 758 podcasts_feed = PodcastsFeed()
 759
 760
 761 class RssNewsFeed(Feed):
 762     title = 'Radio Panik'
 763     link = '/news/'
 764     description_template = 'feed/newsitem.html'
 765
 766     def items(self):
 767         return NewsItem.objects.order_by('-date')[:20]
 768
 769 rss_news_feed = RssNewsFeed()
 770
 771 class Atom1FeedWithBaseXml(Atom1Feed):
 772     def root_attributes(self):
 773         root_attributes = super(Atom1FeedWithBaseXml, self).root_attributes()
 774         scheme, netloc, path, params, query, fragment  = urlparse.urlparse(self.feed['feed_url'])
 775         root_attributes['xml:base'] = urlparse.urlunparse((scheme, netloc, '/', params, query, fragment))
 776         return root_attributes
 777
 778 class AtomNewsFeed(RssNewsFeed):
 779     feed_type = Atom1FeedWithBaseXml
 780
 781 atom_news_feed = AtomNewsFeed()
 782
 783
 784 class EmissionPodcastsFeed(PodcastsFeed):
 785     description_template = 'feed/soundfile.html'
 786     feed_type = RssCustomPodcastsFeed
 787
 788     def __call__(self, request, *args, **kwargs):
 789         self.emission = Emission.objects.get(slug=kwargs.get('slug'))
 790         return super(EmissionPodcastsFeed, self).__call__(request, *args, **kwargs)
 791
 792     @property
 793     def title(self):
 794         return '%s - Podcasts' % self.emission.title
 795
 796     @property
 797     def link(self):
 798         return reverse('emission-view', kwargs={'slug': self.emission.slug})
 799
 800     def feed_extra_kwargs(self, obj):
 801         return {'emission': self.emission}
 802
 803     def items(self):
 804         return SoundFile.objects.select_related().filter(
 805                 podcastable=True,
 806                 episode__emission__slug=self.emission.slug).order_by('-creation_timestamp')[:20]
 807
 808 emission_podcasts_feed = EmissionPodcastsFeed()
 809
 810
 811 class Party(TemplateView):
 812     template_name = 'party.html'
 813
 814     def get_context_data(self, **kwargs):
 815         context = super(Party, self).get_context_data(**kwargs)
 816         t = random.choice(['newsitem']*2 + ['emission']*3 + ['soundfile']*1 + ['episode']*2)
 817         focus = Focus()
 818         if t == 'newsitem':
 819             focus.newsitem = NewsItem.objects.exclude(
 820                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 821         elif t == 'emission':
 822             focus.emission = Emission.objects.exclude(
 823                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 824         elif t == 'episode':
 825             focus.episode = Episode.objects.exclude(
 826                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 827         elif t == 'soundfile':
 828             focus.soundfile = SoundFile.objects.exclude(
 829                     episode__image__isnull=True).exclude(episode__image__exact='').order_by('?')[0]
 830
 831         context['focus'] = focus
 832
 833         return context
 834
 835 party = Party.as_view()
 836
 837
 838
 839 class Chat(DetailView, EmissionMixin):
 840     model = Emission
 841     template_name = 'chat.html'
 842
 843 chat = cache_control(max_age=15)(Chat.as_view())