panikweb/views.py

   1 # coding: utf-8
   2
   3 from datetime import datetime, timedelta, date
   4 import math
   5 import random
   6 import os
   7 import stat
   8 import time
   9 import urlparse
  10
  11 from django.core.urlresolvers import reverse
  12 from django.conf import settings
  13 from django.http import Http404
  14 from django.views.decorators.cache import cache_control
  15 from django.views.generic.base import TemplateView
  16 from django.views.generic.detail import DetailView
  17 from django.views.decorators.csrf import csrf_exempt
  18 from django.views.generic.dates import _date_from_string
  19 from django.views.generic.dates import MonthArchiveView
  20
  21 from django.core.paginator import Paginator
  22
  23 from django.contrib.sites.models import Site
  24 from django.contrib.syndication.views import Feed, add_domain
  25 from django.utils.feedgenerator import Atom1Feed, Rss201rev2Feed
  26
  27 from haystack.query import SearchQuerySet
  28 from jsonresponse import to_json
  29
  30 from emissions.models import Category, Emission, Episode, Diffusion, SoundFile, \
  31         Schedule, Nonstop, NewsItem, NewsCategory, Focus
  32
  33 from emissions.utils import whatsonair, period_program
  34
  35 from newsletter.forms import SubscribeForm
  36 from nonstop.utils import get_current_nonstop_track
  37 from nonstop.models import SomaLogLine
  38
  39 from combo.data.models import Page
  40 from panikombo.models import ItemTopik
  41
  42 from . import utils
  43
  44
  45 class EmissionMixin:
  46     def get_emission_context(self, emission, episode_ids=None):
  47         context = {}
  48
  49         # get all episodes, with an additional attribute to get the date of
  50         # their first diffusion
  51         episodes_queryset = Episode.objects.select_related()
  52         if episode_ids is not None:
  53             episodes_queryset = episodes_queryset.filter(id__in=episode_ids)
  54         else:
  55             episodes_queryset = episodes_queryset.filter(emission=emission)
  56
  57         context['episodes'] = \
  58                 episodes_queryset.extra(select={
  59                         'first_diffusion': 'emissions_diffusion.datetime',
  60                         },
  61                         select_params=(False, True),
  62                         where=['''datetime = (SELECT MIN(datetime)
  63                                                 FROM emissions_diffusion
  64                                                WHERE episode_id = emissions_episode.id
  65                                                  AND datetime <= CURRENT_TIMESTAMP)'''],
  66                         tables=['emissions_diffusion'],
  67                     ).order_by('-first_diffusion').distinct()
  68
  69         context['futurEpisodes'] = \
  70                 episodes_queryset.extra(select={
  71                         'first_diffusion': 'emissions_diffusion.datetime',
  72                         },
  73                         select_params=(False, True),
  74                         where=['''datetime = (SELECT MIN(datetime)
  75                                                 FROM emissions_diffusion
  76                                                WHERE episode_id = emissions_episode.id
  77                                                  AND datetime > CURRENT_TIMESTAMP)'''],
  78                         tables=['emissions_diffusion'],
  79                     ).order_by('first_diffusion').distinct()
  80
  81         if emission.archived:
  82             current_year = emission.creation_timestamp.replace(month=5, day=1)
  83         else:
  84             current_year = datetime.now().replace(month=5, day=1)
  85
  86         context['all_episodes'] = episodes_queryset.filter(
  87                 creation_timestamp__gt=current_year
  88                 ).extra(select={
  89                         'first_diffusion': 'emissions_diffusion.datetime',
  90                         },
  91                         select_params=(False, True),
  92                         where=['''datetime = (SELECT MIN(datetime)
  93                                                 FROM emissions_diffusion
  94                                                WHERE episode_id = emissions_episode.id
  95                                              )'''],
  96                         tables=['emissions_diffusion'],
  97                     ).order_by('first_diffusion').distinct()
  98
  99         # get all related soundfiles in a single query
 100         soundfiles = {}
 101         if episode_ids is not None:
 102             for episode_id in episode_ids:
 103                 soundfiles[episode_id] = None
 104         else:
 105             for episode in Episode.objects.filter(emission=emission):
 106                 soundfiles[episode.id] = None
 107
 108         for soundfile in SoundFile.objects.select_related().filter(podcastable=True,
 109                 fragment=False, episode__emission=emission):
 110             soundfiles[soundfile.episode_id] = soundfile
 111
 112         Episode.set_prefetched_soundfiles(soundfiles)
 113
 114         #context['futurEpisodes'] = context['episodes'].filter(first_diffusion='2013')[0:3]
 115
 116         return context
 117
 118
 119 class EmissionDetailView(DetailView, EmissionMixin):
 120     model = Emission
 121
 122     def get_context_data(self, **kwargs):
 123         context = super(EmissionDetailView, self).get_context_data(**kwargs)
 124         context['schedules'] = Schedule.objects.select_related().filter(
 125                 emission=self.object).order_by('rerun', 'datetime')
 126         context['news'] = NewsItem.objects.all().filter(emission=self.object.id).order_by('-date')[:3]
 127         try:
 128             nonstop_object = Nonstop.objects.get(slug=self.object.slug)
 129         except Nonstop.DoesNotExist:
 130             pass
 131         else:
 132             today = date.today()
 133             dates = [today - timedelta(days=x) for x in range(7)]
 134             if datetime.now().time() < nonstop_object.start:
 135                 dates = dates[1:]
 136             context['nonstop'] = nonstop_object
 137             context['nonstop_dates'] = dates
 138         context.update(self.get_emission_context(self.object))
 139         return context
 140 emission = EmissionDetailView.as_view()
 141
 142 class EpisodeDetailView(DetailView, EmissionMixin):
 143     model = Episode
 144
 145     def get_context_data(self, **kwargs):
 146         context = super(EpisodeDetailView, self).get_context_data(**kwargs)
 147         context['diffusions'] = Diffusion.objects.select_related().filter(
 148                 episode=self.object.id).order_by('datetime')
 149         try:
 150             context['emission'] = context['episode'].emission
 151         except Emission.DoesNotExist:
 152             raise Http404()
 153         if self.kwargs.get('emission_slug') != context['emission'].slug:
 154             raise Http404()
 155         context.update(self.get_emission_context(context['emission']))
 156         context['topiks'] = [x.topik for x in ItemTopik.objects.filter(episode=self.object)]
 157         return context
 158 episode = EpisodeDetailView.as_view()
 159
 160
 161 class NonstopPlaylistView(TemplateView):
 162     template_name = 'nonstop_playlist.html'
 163
 164     def get_context_data(self, **kwargs):
 165         context = super(NonstopPlaylistView, self).get_context_data(**kwargs)
 166         try:
 167             context['emission'] = Emission.objects.get(slug=kwargs.get('slug'))
 168         except Emission.DoesNotExist:
 169             raise Http404()
 170         context['date'] = date(int(kwargs.get('year')),
 171                 int(kwargs.get('month')), int(kwargs.get('day')))
 172         context['future'] = (context['date'] >= date.today())
 173
 174         nonstop_object = Nonstop.objects.get(slug=kwargs.get('slug'))
 175         start = datetime(
 176                 int(kwargs.get('year')), int(kwargs.get('month')), int(kwargs.get('day')),
 177                 nonstop_object.start.hour, nonstop_object.start.minute)
 178         end = datetime(
 179                 int(kwargs.get('year')), int(kwargs.get('month')), int(kwargs.get('day')),
 180                 nonstop_object.end.hour, nonstop_object.end.minute)
 181         if end < start:
 182             end = end + timedelta(days=1)
 183         context['tracks'] = SomaLogLine.objects.filter(
 184                 play_timestamp__gte=start,
 185                 play_timestamp__lte=end,
 186                 on_air=True).select_related()
 187         return context
 188
 189 nonstop_playlist = NonstopPlaylistView.as_view()
 190
 191 class EmissionEpisodesDetailView(DetailView, EmissionMixin):
 192     model = Emission
 193     template_name = 'emissions/episodes.html'
 194
 195     def get_context_data(self, **kwargs):
 196         context = super(EmissionEpisodesDetailView, self).get_context_data(**kwargs)
 197         context['schedules'] = Schedule.objects.select_related().filter(
 198                 emission=self.object).order_by('rerun', 'datetime')
 199
 200         context['search_query'] = self.request.GET.get('q')
 201         if context['search_query']:
 202             # query string
 203             sqs = SearchQuerySet().models(Episode).filter(
 204                     emission_slug_exact=self.object.slug, text=context['search_query'])
 205             episode_ids = [x.pk for x in sqs]
 206         else:
 207             episode_ids = None
 208
 209         context.update(self.get_emission_context(self.object, episode_ids=episode_ids))
 210         return context
 211 emissionEpisodes = EmissionEpisodesDetailView.as_view()
 212
 213
 214 class SoundFileEmbedView(DetailView):
 215     model = SoundFile
 216     template_name = 'soundfiles/embed.html'
 217
 218     def get_context_data(self, **kwargs):
 219         context = super(SoundFileEmbedView, self).get_context_data(**kwargs)
 220         if self.kwargs.get('episode_slug') != self.object.episode.slug:
 221             raise Http404()
 222         if self.kwargs.get('emission_slug') != self.object.episode.emission.slug:
 223             raise Http404()
 224         context['episode'] = self.object.episode
 225         return context
 226 soundfile_embed = SoundFileEmbedView.as_view()
 227
 228
 229 class SoundFileDialogEmbedView(DetailView):
 230     model = SoundFile
 231     template_name = 'soundfiles/dialog-embed.html'
 232
 233     def get_context_data(self, **kwargs):
 234         context = super(SoundFileDialogEmbedView, self).get_context_data(**kwargs)
 235         if self.kwargs.get('episode_slug') != self.object.episode.slug:
 236             raise Http404()
 237         if self.kwargs.get('emission_slug') != self.object.episode.emission.slug:
 238             raise Http404()
 239         context['episode'] = self.object.episode
 240         return context
 241 soundfile_dlg_embed = SoundFileDialogEmbedView.as_view()
 242
 243
 244
 245 class ProgramView(TemplateView):
 246     template_name = 'program.html'
 247
 248     def get_context_data(self, year=None, week=None, **kwargs):
 249         context = super(ProgramView, self).get_context_data(**kwargs)
 250
 251         context['weekday'] = datetime.today().weekday()
 252
 253         context['week'] = week = int(week) if week is not None else datetime.today().isocalendar()[1]
 254         context['year'] = year = int(year) if year is not None else datetime.today().isocalendar()[0]
 255         context['week_first_day'] = utils.tofirstdayinisoweek(year, week)
 256         context['week_last_day'] = context['week_first_day'] + timedelta(days=6)
 257
 258         return context
 259
 260 program = ProgramView.as_view()
 261
 262 class TimeCell:
 263     nonstop = None
 264     w = 1
 265     h = 1
 266     time_label = None
 267
 268     def __init__(self, i, j):
 269         self.x = i
 270         self.y = j
 271         self.schedules = []
 272
 273     def add_schedule(self, schedule):
 274         end_time = schedule.datetime + timedelta(
 275                 minutes=schedule.get_duration())
 276         self.time_label = '%02d:%02d-%02d:%02d' % (
 277                 schedule.datetime.hour,
 278                 schedule.datetime.minute,
 279                 end_time.hour,
 280                 end_time.minute)
 281         self.schedules.append(schedule)
 282
 283     def __unicode__(self):
 284         if self.schedules:
 285             return ', '.join([x.emission.title for x in self.schedules])
 286         else:
 287             return self.nonstop
 288
 289     def __eq__(self, other):
 290         return (unicode(self) == unicode(other) and self.time_label == other.time_label)
 291
 292
 293 class Grid(TemplateView):
 294     template_name = 'grid.html'
 295
 296     def get_context_data(self, **kwargs):
 297         context = super(Grid, self).get_context_data(**kwargs)
 298
 299         nb_lines = 2 * 24 # the cells are half hours
 300         grid = []
 301
 302         times = ['%02d:%02d' % (x/2, x%2*30) for x in range(nb_lines)]
 303         # start grid after the night programs
 304         times = times[2*Schedule.DAY_HOUR_START:] + times[:2*Schedule.DAY_HOUR_START]
 305
 306         nonstops = []
 307         for nonstop in Nonstop.objects.all():
 308             if nonstop.start == nonstop.end:
 309                 continue
 310             if nonstop.start < nonstop.end:
 311                 nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
 312                                  nonstop.end.hour + nonstop.end.minute/60.,
 313                                  nonstop.title, nonstop.slug])
 314             else:
 315                 # crossing midnight
 316                 nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
 317                                  24,
 318                                  nonstop.title, nonstop.slug])
 319                 nonstops.append([0,
 320                                  nonstop.end.hour + nonstop.end.minute/60.,
 321                                  nonstop.title, nonstop.slug])
 322         nonstops.sort()
 323
 324         for i in range(nb_lines):
 325             grid.append([])
 326             for j in range(7):
 327                 grid[-1].append(TimeCell(i, j))
 328
 329             nonstop = [x for x in nonstops if i>=x[0]*2 and i<x[1]*2][0]
 330             for time_cell in grid[-1]:
 331                 time_cell.nonstop = nonstop[2]
 332                 time_cell.nonstop_slug = nonstop[3]
 333                 if nonstop[1] == 5:
 334                     # the one ending at 5am will be cut down, so we inscribe
 335                     # its duration manually
 336                     time_cell.time_label = '%02d:00-%02d:00' % (
 337                             nonstop[0], nonstop[1])
 338
 339         for schedule in Schedule.objects.prefetch_related(
 340                 'emission__categories').select_related().order_by('datetime'):
 341             row_start = schedule.datetime.hour * 2 + \
 342                     int(math.ceil(schedule.datetime.minute / 30))
 343             day_no = schedule.get_weekday()
 344
 345             for step in range(int(math.ceil(schedule.get_duration() / 30.))):
 346                 if grid[(row_start+step)%nb_lines][day_no] is None:
 347                     grid[(row_start+step)%nb_lines][day_no] = TimeCell()
 348                 grid[(row_start+step)%nb_lines][day_no].add_schedule(schedule)
 349
 350         # start grid after the night programs
 351         grid = grid[2*Schedule.DAY_HOUR_START:] + grid[:2*Schedule.DAY_HOUR_START]
 352
 353         # look for the case where the same emission has different schedules for
 354         # the same time cell, for example if it lasts one hour the first week,
 355         # and two hours the third week.
 356         for i in range(nb_lines):
 357             grid[i] = [x for x in grid[i] if x is not None]
 358             for j, cell in enumerate(grid[i]):
 359                 if grid[i][j] is None:
 360                     continue
 361                 if len(grid[i][j].schedules) > 1:
 362                     time_cell_emissions = {}
 363                     for schedule in grid[i][j].schedules:
 364                         if not schedule.emission.id in time_cell_emissions:
 365                             time_cell_emissions[schedule.emission.id] = []
 366                         time_cell_emissions[schedule.emission.id].append(schedule)
 367                     for schedule_list in time_cell_emissions.values():
 368                         if len(schedule_list) == 1:
 369                             continue
 370                         # here it is, same cell, same emission, several
 371                         # schedules
 372                         schedule_list.sort(lambda x,y: cmp(x.get_duration(), y.get_duration()))
 373
 374                         schedule = schedule_list[0]
 375                         end_time = schedule.datetime + timedelta(
 376                                 minutes=schedule.get_duration())
 377                         grid[i][j].time_label = '%02d:%02d-%02d:%02d' % (
 378                                 schedule.datetime.hour,
 379                                 schedule.datetime.minute,
 380                                 end_time.hour,
 381                                 end_time.minute)
 382
 383                         for schedule in schedule_list[1:]:
 384                             grid[i][j].schedules.remove(schedule)
 385                             end_time = schedule.datetime + timedelta(minutes=schedule.get_duration())
 386                             schedule_list[0].time_label_extra = ', -%02d:%02d %s' % (
 387                                     end_time.hour, end_time.minute, schedule.weeks_string)
 388
 389         # merge adjacent
 390
 391         # 1st thing is to merge cells on the same line, this will mostly catch
 392         # consecutive nonstop cells
 393         for i in range(nb_lines):
 394             for j, cell in enumerate(grid[i]):
 395                 if grid[i][j] is None:
 396                     continue
 397                 t = 1
 398                 try:
 399                     # if the cells are identical, they are removed from the
 400                     # grid, and current cell width is increased
 401                     while grid[i][j+t] == cell:
 402                         cell.w += 1
 403                         grid[i][j+t] = None
 404                         t += 1
 405                 except IndexError:
 406                     pass
 407
 408             # once we're done we remove empty cells
 409             grid[i] = [x for x in grid[i] if x is not None]
 410
 411         # 2nd thing is to merge cells vertically, this is emissions that last
 412         # for more than 30 minutes
 413         for i in range(nb_lines):
 414             grid[i] = [x for x in grid[i] if x is not None]
 415             for j, cell in enumerate(grid[i]):
 416                 if grid[i][j] is None:
 417                     continue
 418                 t = 1
 419                 try:
 420                     while True:
 421                         # we look if the next time cell has the same emissions
 422                         same_cell_below = [(bj, x) for bj, x in enumerate(grid[i+cell.h])
 423                                            if x == cell and x.y == cell.y and x.w == cell.w]
 424                         if same_cell_below:
 425                             # if the cell was identical, we remove it and
 426                             # increase current cell height
 427                             bj, same_cell_below = same_cell_below[0]
 428                             del grid[i+cell.h][bj]
 429                             cell.h += 1
 430                         else:
 431                             # if the cell is different, we have a closer look
 432                             # to it, so we can remove emissions that will
 433                             # already be mentioned in the current cell.
 434                             #
 435                             # For example:
 436                             #  - 7am30, seuls contre tout, 1h30
 437                             #  - 8am, du pied gauche & la voix de la rue, 1h
 438                             # should produce: (this is case A)
 439                             #  |      7:30-9:00      |
 440                             #  |  seuls contre tout  |
 441                             #  |---------------------|
 442                             #  |      8:00-9:00      |
 443                             #  |   du pied gauche    |
 444                             #  |  la voix de la rue  |
 445                             #
 446                             # On the other hand, if all three emissions started
 447                             # at 7am30, we want: (this is case B)
 448                             #  |      7:30-9:00      |
 449                             #  |  seuls contre tout  |
 450                             #  |   du pied gauche    |
 451                             #  |  la voix de la rue  |
 452                             # that is we merge all of them, ignoring the fact
 453                             # that the other emissions will stop at 8am30
 454                             current_cell_schedules = set(grid[i][j].schedules)
 455                             current_cell_emissions = set([x.emission for x in current_cell_schedules])
 456                             cursor = 1
 457                             while True and current_cell_schedules:
 458                                 same_cell_below = [x for x in grid[i+cursor] if x.y == grid[i][j].y]
 459                                 if not same_cell_below:
 460                                     cursor += 1
 461                                     continue
 462                                 same_cell_below = same_cell_below[0]
 463                                 same_cell_below_emissions = set([x.emission for x in same_cell_below.schedules])
 464
 465                                 if current_cell_emissions.issubset(same_cell_below_emissions):
 466                                     # this handles case A (see comment above)
 467                                     for schedule in current_cell_schedules:
 468                                         if schedule in same_cell_below.schedules:
 469                                             same_cell_below.schedules.remove(schedule)
 470                                 elif same_cell_below_emissions and \
 471                                         current_cell_emissions.issuperset(same_cell_below_emissions):
 472                                     # this handles case B (see comment above)
 473                                     # we set the cell time label to the longest
 474                                     # period
 475                                     grid[i][j].time_label = same_cell_below.time_label
 476                                     # then we sort emissions so the longest are
 477                                     # put first
 478                                     grid[i][j].schedules.sort(
 479                                             lambda x, y: -cmp(x.get_duration(), y.get_duration()))
 480                                     # then we add individual time labels to the
 481                                     # other schedules
 482                                     for schedule in current_cell_schedules:
 483                                         if schedule not in same_cell_below.schedules:
 484                                             end_time = schedule.datetime + timedelta(
 485                                                     minutes=schedule.get_duration())
 486                                             schedule.time_label = '%02d:%02d-%02d:%02d' % (
 487                                                     schedule.datetime.hour,
 488                                                     schedule.datetime.minute,
 489                                                     end_time.hour,
 490                                                     end_time.minute)
 491                                     grid[i][j].h += 1
 492                                     grid[i+cursor].remove(same_cell_below)
 493                                 elif same_cell_below_emissions and \
 494                                         current_cell_emissions.intersection(same_cell_below_emissions):
 495                                     same_cell_below.schedules = [x for x in
 496                                             same_cell_below.schedules if
 497                                             x.emission not in
 498                                             current_cell_emissions or
 499                                             x.get_duration() < 30]
 500                                 cursor += 1
 501                             break
 502                 except IndexError:
 503                     pass
 504
 505         # cut night at 3am
 506         grid = grid[:42]
 507         times = times[:42]
 508
 509         context['grid'] = grid
 510         context['times'] = times
 511         context['categories'] = Category.objects.all()
 512         context['weekdays'] = ['Lundi', 'Mardi', 'Mercredi', 'Jeudi',
 513                 'Vendredi', 'Samedi', 'Dimanche']
 514
 515         return context
 516
 517 grid = Grid.as_view()
 518
 519
 520 class Home(TemplateView):
 521     template_name = 'home.html'
 522
 523     def get_context_data(self, **kwargs):
 524         context = super(Home, self).get_context_data(**kwargs)
 525         context['emissions'] = Emission.objects.filter(archived=False).order_by('title')
 526         context['newsitems'] = NewsItem.objects.exclude(date__gt=date.today()
 527                 ).exclude(expiration_date__lt=date.today()).order_by('-date')[:3]
 528
 529         context['soundfiles'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 530                 podcastable=True, fragment=False) \
 531                 .select_related().extra(select={
 532                     'first_diffusion': 'emissions_diffusion.datetime', },
 533                     select_params=(False, True),
 534                     where=['''datetime = (SELECT MIN(datetime)
 535                                             FROM emissions_diffusion
 536                                         WHERE episode_id = emissions_episode.id)'''],
 537                     tables=['emissions_diffusion'],).order_by('-creation_timestamp').distinct() [:3]
 538
 539         context['newsletter_form'] = SubscribeForm()
 540         context['extra_pages'] = Page.objects.filter(exclude_from_navigation=False)
 541
 542         return context
 543
 544 home = Home.as_view()
 545
 546 class NewsItemView(DetailView):
 547     model = NewsItem
 548     def get_context_data(self, **kwargs):
 549         context = super(NewsItemView, self).get_context_data(**kwargs)
 550         context['categories'] = NewsCategory.objects.all()
 551         context['news'] = NewsItem.objects.all().order_by('-date')
 552         context['topiks'] = [x.topik for x in ItemTopik.objects.filter(newsitem=self.object)]
 553         return context
 554 newsitemview = NewsItemView.as_view()
 555
 556 class News(TemplateView):
 557     template_name = 'news.html'
 558     def get_context_data(self, **kwargs):
 559         context = super(News, self).get_context_data(**kwargs)
 560         context['focus'] = NewsItem.objects.exclude(date__gt=date.today()).filter(got_focus__isnull=False).select_related('category').order_by('-date')[:10]
 561         context['news'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')
 562         return context
 563
 564 news = News.as_view()
 565
 566
 567 class Agenda(TemplateView):
 568     template_name = 'agenda.html'
 569     def get_context_data(self, **kwargs):
 570         context = super(Agenda, self).get_context_data(**kwargs)
 571         context['agenda'] = NewsItem.objects.exclude(date__gt=date.today()).filter(
 572                 event_date__gte=date.today()).order_by('date')[:20]
 573         context['news'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')
 574         context['previous_month'] = datetime.today().replace(day=1) - timedelta(days=2)
 575         return context
 576
 577 agenda = Agenda.as_view()
 578
 579
 580 class AgendaByMonth(MonthArchiveView):
 581     template_name = 'agenda.html'
 582     queryset = NewsItem.objects.filter(event_date__isnull=False)
 583     allow_future = True
 584     date_field = 'event_date'
 585     month_format = '%m'
 586
 587     def get_context_data(self, **kwargs):
 588         context = super(AgendaByMonth, self).get_context_data(**kwargs)
 589         context['agenda'] = context['object_list']
 590         context['news'] = NewsItem.objects.all().order_by('-date')
 591         return context
 592
 593 agenda_by_month = AgendaByMonth.as_view()
 594
 595
 596 class Emissions(TemplateView):
 597     template_name = 'emissions.html'
 598
 599     def get_context_data(self, **kwargs):
 600         context = super(Emissions, self).get_context_data(**kwargs)
 601         context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=False).order_by('title')
 602         context['categories'] = Category.objects.all()
 603         return context
 604
 605 emissions = Emissions.as_view()
 606
 607 class EmissionsArchives(TemplateView):
 608     template_name = 'emissions/archives.html'
 609
 610     def get_context_data(self, **kwargs):
 611         context = super(EmissionsArchives, self).get_context_data(**kwargs)
 612         context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=True).order_by('title')
 613         context['categories'] = Category.objects.all()
 614         return context
 615 emissionsArchives = EmissionsArchives.as_view()
 616
 617
 618 class Listen(TemplateView):
 619     template_name = 'listen.html'
 620
 621     def get_context_data(self, **kwargs):
 622         context = super(Listen, self).get_context_data(**kwargs)
 623         context['focus'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 624                 podcastable=True, got_focus__isnull=False) \
 625                 .select_related().extra(select={
 626                     'first_diffusion': 'emissions_diffusion.datetime', },
 627                     select_params=(False, True),
 628                     where=['''datetime = (SELECT MIN(datetime)
 629                                             FROM emissions_diffusion
 630                                         WHERE episode_id = emissions_episode.id)'''],
 631                     tables=['emissions_diffusion'],).order_by('-first_diffusion').distinct() [:10]
 632         context['soundfiles'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 633                 podcastable=True) \
 634                 .select_related().extra(select={
 635                     'first_diffusion': 'emissions_diffusion.datetime', },
 636                     select_params=(False, True),
 637                     where=['''datetime = (SELECT MIN(datetime)
 638                                             FROM emissions_diffusion
 639                                         WHERE episode_id = emissions_episode.id)'''],
 640                     tables=['emissions_diffusion'],).order_by('-creation_timestamp').distinct()
 641
 642
 643         return context
 644
 645 listen = Listen.as_view()
 646
 647 @cache_control(max_age=15)
 648 @csrf_exempt
 649 @to_json('api')
 650 def onair(request):
 651     if date.today() < date(2018, 7, 30):
 652         return {'emission': {'title': 'À partir du 31 juillet 18h', 'url': '/'}}
 653     if date.today() > date(2018, 8, 5):
 654         return {'emission': {'title': "À l'année prochaine, découvrez les podcasts !", 'url': '/'}}
 655     d = whatsonair()
 656     if d.get('episode'):
 657         d['episode'] = {
 658             'title': d['episode'].title,
 659             'url': d['episode'].get_absolute_url()
 660         }
 661     if d.get('emission'):
 662         chat_url = None
 663         if d['emission'].chat_open:
 664             chat_url = reverse('emission-chat', kwargs={'slug': d['emission'].slug})
 665         d['emission'] = {
 666             'title': d['emission'].title,
 667             'url': d['emission'].get_absolute_url(),
 668             'chat': chat_url,
 669         }
 670     if d.get('nonstop'):
 671         d['nonstop'] = {
 672             'title': d['nonstop'].title,
 673         }
 674         playing_txt = os.path.join(settings.MEDIA_ROOT, 'playing.txt')
 675         if os.path.exists(os.path.join(playing_txt)):
 676             d['track_title'] = open(playing_txt).read().strip()
 677     if d.get('current_slot'):
 678         del d['current_slot']
 679     return d
 680
 681
 682 class NewsItemDetailView(DetailView):
 683     model = NewsItem
 684
 685 newsitem = NewsItemDetailView.as_view()
 686
 687 class RssCustomPodcastsFeed(Rss201rev2Feed):
 688     def add_root_elements(self, handler):
 689         super(RssCustomPodcastsFeed, self).add_root_elements(handler)
 690         emission = self.feed.get('emission')
 691         if emission and emission.image and emission.image.url:
 692             image_url = emission.image.url
 693         else:
 694             image_url = '/static/img/logo-panik-500.png'
 695         image_url = urlparse.urljoin(self.feed['link'], image_url)
 696         handler.startElement('image', {})
 697         if emission:
 698             handler.addQuickElement('title', emission.title)
 699         else:
 700             handler.addQuickElement('title', 'Radio Esperanzah!')
 701         handler.addQuickElement('url', image_url)
 702         handler.endElement('image')
 703         handler.addQuickElement('itunes:image', None, {'href': image_url})
 704         if emission and emission.subtitle:
 705             handler.addQuickElement('itunes:subtitle', emission.subtitle)
 706
 707     def root_attributes(self):
 708         attrs = super(RssCustomPodcastsFeed, self).root_attributes()
 709         attrs['xmlns:dc'] = 'http://purl.org/dc/elements/1.1/'
 710         attrs['xmlns:itunes'] = 'http://www.itunes.com/dtds/podcast-1.0.dtd'
 711         return attrs
 712
 713     def add_item_elements(self, handler, item):
 714         super(RssCustomPodcastsFeed, self).add_item_elements(handler, item)
 715         explicit = 'no'
 716         for tag in item.get('tags') or []:
 717             handler.addQuickElement('dc:subject', tag)
 718             if tag == 'explicit':
 719                 explicit = 'yes'
 720         if item.get('tags'):
 721             handler.addQuickElement('itunes:keywords', ','.join(item.get('tags')))
 722         handler.addQuickElement('itunes:explicit', explicit)
 723         episode = item.get('episode')
 724         if episode and episode.image and episode.image.url:
 725             image_url = urlparse.urljoin(self.feed['link'], episode.image.url)
 726             handler.addQuickElement('itunes:image', None, {'href': image_url})
 727         soundfile = item.get('soundfile')
 728         if soundfile.duration:
 729             handler.addQuickElement('itunes:duration', '%02d:%02d:%02d' % (
 730                 soundfile.duration / 3600,
 731                 soundfile.duration % 3600 / 60,
 732                 soundfile.duration % 60))
 733
 734
 735 class PodcastsFeed(Feed):
 736     title = 'Radio Esperanzah! - Podcasts'
 737     link = '/'
 738     description_template = 'feed/soundfile.html'
 739     feed_type = RssCustomPodcastsFeed
 740
 741     def items(self):
 742         return SoundFile.objects.select_related().filter(
 743                 podcastable=True).order_by('-creation_timestamp')[:20]
 744
 745     def item_title(self, item):
 746         if item.fragment:
 747             return '%s - %s' % (item.title, item.episode.title)
 748         return '%s - %s' % (item.episode.emission.title, item.episode.title)
 749
 750     def item_link(self, item):
 751         return item.episode.get_absolute_url()
 752
 753     def item_enclosure_url(self, item):
 754         current_site = Site.objects.get(id=settings.SITE_ID)
 755         return add_domain(current_site.domain, item.get_format_url('mp3'))
 756
 757     def item_enclosure_length(self, item):
 758         sound_path = item.get_format_path('mp3')
 759         try:
 760             return os.stat(sound_path)[stat.ST_SIZE]
 761         except OSError:
 762             return 0
 763
 764     def item_enclosure_mime_type(self, item):
 765         return 'audio/mpeg'
 766
 767     def item_pubdate(self, item):
 768         return item.creation_timestamp
 769
 770     def item_extra_kwargs(self, item):
 771         return {'tags': [x.name for x in item.episode.tags.all()],
 772                 'soundfile': item,
 773                 'episode': item.episode}
 774
 775 podcasts_feed = PodcastsFeed()
 776
 777
 778 class RssNewsFeed(Feed):
 779     title = 'Radio Esperanzah!'
 780     link = '/news/'
 781     description_template = 'feed/newsitem.html'
 782
 783     def items(self):
 784         return NewsItem.objects.order_by('-date')[:20]
 785
 786 rss_news_feed = RssNewsFeed()
 787
 788 class Atom1FeedWithBaseXml(Atom1Feed):
 789     def root_attributes(self):
 790         root_attributes = super(Atom1FeedWithBaseXml, self).root_attributes()
 791         scheme, netloc, path, params, query, fragment  = urlparse.urlparse(self.feed['feed_url'])
 792         root_attributes['xml:base'] = urlparse.urlunparse((scheme, netloc, '/', params, query, fragment))
 793         return root_attributes
 794
 795 class AtomNewsFeed(RssNewsFeed):
 796     feed_type = Atom1FeedWithBaseXml
 797
 798 atom_news_feed = AtomNewsFeed()
 799
 800
 801 class EmissionPodcastsFeed(PodcastsFeed):
 802     description_template = 'feed/soundfile.html'
 803     feed_type = RssCustomPodcastsFeed
 804
 805     def __call__(self, request, *args, **kwargs):
 806         self.emission = Emission.objects.get(slug=kwargs.get('slug'))
 807         return super(EmissionPodcastsFeed, self).__call__(request, *args, **kwargs)
 808
 809     @property
 810     def title(self):
 811         return '%s - Podcasts' % self.emission.title
 812
 813     @property
 814     def link(self):
 815         return reverse('emission-view', kwargs={'slug': self.emission.slug})
 816
 817     def feed_extra_kwargs(self, obj):
 818         return {'emission': self.emission}
 819
 820     def items(self):
 821         return SoundFile.objects.select_related().filter(
 822                 podcastable=True,
 823                 episode__emission__slug=self.emission.slug).order_by('-creation_timestamp')[:20]
 824
 825 emission_podcasts_feed = EmissionPodcastsFeed()
 826
 827
 828 class Party(TemplateView):
 829     template_name = 'party.html'
 830
 831     def get_context_data(self, **kwargs):
 832         context = super(Party, self).get_context_data(**kwargs)
 833         t = random.choice(['newsitem']*2 + ['emission']*3 + ['soundfile']*1 + ['episode']*2)
 834         focus = Focus()
 835         if t == 'newsitem':
 836             focus.newsitem = NewsItem.objects.exclude(
 837                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 838         elif t == 'emission':
 839             focus.emission = Emission.objects.exclude(
 840                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 841         elif t == 'episode':
 842             focus.episode = Episode.objects.exclude(
 843                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 844         elif t == 'soundfile':
 845             focus.soundfile = SoundFile.objects.exclude(
 846                     episode__image__isnull=True).exclude(episode__image__exact='').order_by('?')[0]
 847
 848         context['focus'] = focus
 849
 850         return context
 851
 852 party = Party.as_view()
 853
 854
 855
 856 class Chat(DetailView, EmissionMixin):
 857     model = Emission
 858     template_name = 'chat.html'
 859
 860 chat = cache_control(max_age=15)(Chat.as_view())
 861
 862
 863
 864 class ArchivesView(TemplateView):
 865     template_name = 'archives.html'
 866
 867     def get_context_data(self, **kwargs):
 868         context = super(ArchivesView, self).get_context_data(**kwargs)
 869         context['diffusions'] = Diffusion.objects.all().order_by('-datetime')
 870         return context
 871
 872 archives = ArchivesView.as_view()