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
   8 from django.core.urlresolvers import reverse
   9 from django.conf import settings
  10 from django.http import Http404, JsonResponse
  11 from django.utils.encoding import force_text
  12 from django.utils.encoding import python_2_unicode_compatible
  13 from django.utils.six.moves.urllib import parse as urlparse
  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
  29 from emissions.models import Category, Emission, Episode, Diffusion, SoundFile, \
  30         Schedule, Nonstop, NewsItem, NewsCategory, Focus
  31 from emissions.views import EmissionEpisodeMixin
  32 from emissions.utils import whatsonair, period_program
  33
  34 from newsletter.forms import SubscribeForm
  35 from nonstop.utils import get_current_nonstop_track
  36 from nonstop.models import SomaLogLine
  37
  38 from panikombo.models import ItemTopik
  39
  40 from . import utils
  41
  42
  43 class EmissionMixin:
  44     def get_emission_context(self, emission, episode_ids=None):
  45         context = {}
  46
  47         # get all episodes, with an additional attribute to get the date of
  48         # their first diffusion
  49         episodes_queryset = Episode.objects.select_related()
  50         if episode_ids is not None:
  51             episodes_queryset = episodes_queryset.filter(id__in=episode_ids)
  52         else:
  53             episodes_queryset = episodes_queryset.filter(emission=emission)
  54
  55         context['episodes'] = \
  56                 episodes_queryset.extra(select={
  57                         'first_diffusion': 'emissions_diffusion.datetime',
  58                         },
  59                         select_params=(False, True),
  60                         where=['''datetime = (SELECT MIN(datetime)
  61                                                 FROM emissions_diffusion
  62                                                WHERE episode_id = emissions_episode.id
  63                                                  AND datetime <= CURRENT_TIMESTAMP)'''],
  64                         tables=['emissions_diffusion'],
  65                     ).order_by('-first_diffusion').distinct()
  66
  67         context['futurEpisodes'] = \
  68                 episodes_queryset.extra(select={
  69                         'first_diffusion': 'emissions_diffusion.datetime',
  70                         },
  71                         select_params=(False, True),
  72                         where=['''datetime = (SELECT MIN(datetime)
  73                                                 FROM emissions_diffusion
  74                                                WHERE episode_id = emissions_episode.id
  75                                                  AND datetime > CURRENT_TIMESTAMP)'''],
  76                         tables=['emissions_diffusion'],
  77                     ).order_by('first_diffusion').distinct()
  78
  79
  80         # get all related soundfiles in a single query
  81         soundfiles = {}
  82         if episode_ids is not None:
  83             for episode_id in episode_ids:
  84                 soundfiles[episode_id] = None
  85         else:
  86             for episode in Episode.objects.filter(emission=emission):
  87                 soundfiles[episode.id] = None
  88
  89         for soundfile in SoundFile.objects.select_related().filter(podcastable=True,
  90                 fragment=False, episode__emission=emission):
  91             soundfiles[soundfile.episode_id] = soundfile
  92
  93         Episode.set_prefetched_soundfiles(soundfiles)
  94
  95         #context['futurEpisodes'] = context['episodes'].filter(first_diffusion='2013')[0:3]
  96
  97         return context
  98
  99
 100 class EmissionDetailView(DetailView, EmissionMixin):
 101     model = Emission
 102
 103     def get_context_data(self, **kwargs):
 104         context = super(EmissionDetailView, self).get_context_data(**kwargs)
 105         context['schedules'] = Schedule.objects.select_related().filter(
 106                 emission=self.object).order_by('rerun', 'datetime')
 107         context['news'] = NewsItem.objects.all(
 108                 ).filter(emission=self.object.id
 109                 ).exclude(expiration_date__lt=date.today()  # expiration date
 110                 ).exclude(date__lt=date.today() - timedelta(days=60)
 111                 ).order_by('-date')[:3]
 112         try:
 113             nonstop_object = Nonstop.objects.get(slug=self.object.slug)
 114         except Nonstop.DoesNotExist:
 115             pass
 116         else:
 117             today = date.today()
 118             dates = [today - timedelta(days=x) for x in range(7)]
 119             if datetime.now().time() < nonstop_object.start:
 120                 dates = dates[1:]
 121             context['nonstop'] = nonstop_object
 122             context['nonstop_dates'] = dates
 123         context.update(self.get_emission_context(self.object))
 124         return context
 125 emission = EmissionDetailView.as_view()
 126
 127
 128 class EpisodeDetailView(EmissionEpisodeMixin, DetailView, EmissionMixin):
 129     model = Episode
 130
 131     def get_context_data(self, **kwargs):
 132         context = super(EpisodeDetailView, self).get_context_data(**kwargs)
 133         context['diffusions'] = Diffusion.objects.select_related().filter(
 134                 episode=self.object.id).order_by('datetime')
 135         try:
 136             context['emission'] = context['episode'].emission
 137         except Emission.DoesNotExist:
 138             raise Http404()
 139         if self.kwargs.get('emission_slug') != context['emission'].slug:
 140             raise Http404()
 141         context.update(self.get_emission_context(context['emission']))
 142         context['topiks'] = [x.topik for x in ItemTopik.objects.filter(episode=self.object)]
 143         return context
 144 episode = EpisodeDetailView.as_view()
 145
 146
 147 class NonstopPlaylistView(TemplateView):
 148     template_name = 'nonstop_playlist.html'
 149
 150     def get_context_data(self, **kwargs):
 151         context = super(NonstopPlaylistView, self).get_context_data(**kwargs)
 152         try:
 153             context['emission'] = Emission.objects.get(slug=kwargs.get('slug'))
 154         except Emission.DoesNotExist:
 155             raise Http404()
 156         context['date'] = date(int(kwargs.get('year')),
 157                 int(kwargs.get('month')), int(kwargs.get('day')))
 158         context['future'] = (context['date'] >= date.today())
 159
 160         nonstop_object = Nonstop.objects.get(slug=kwargs.get('slug'))
 161         start = datetime(
 162                 int(kwargs.get('year')), int(kwargs.get('month')), int(kwargs.get('day')),
 163                 nonstop_object.start.hour, nonstop_object.start.minute)
 164         end = datetime(
 165                 int(kwargs.get('year')), int(kwargs.get('month')), int(kwargs.get('day')),
 166                 nonstop_object.end.hour, nonstop_object.end.minute)
 167         if end < start:
 168             end = end + timedelta(days=1)
 169         context['tracks'] = SomaLogLine.objects.filter(
 170                 play_timestamp__gte=start,
 171                 play_timestamp__lte=end,
 172                 on_air=True).select_related()
 173         return context
 174
 175 nonstop_playlist = NonstopPlaylistView.as_view()
 176
 177 class EmissionEpisodesDetailView(DetailView, EmissionMixin):
 178     model = Emission
 179     template_name = 'emissions/episodes.html'
 180
 181     def get_context_data(self, **kwargs):
 182         context = super(EmissionEpisodesDetailView, self).get_context_data(**kwargs)
 183         context['schedules'] = Schedule.objects.select_related().filter(
 184                 emission=self.object).order_by('rerun', 'datetime')
 185
 186         context['search_query'] = self.request.GET.get('q')
 187         if context['search_query']:
 188             # query string
 189             sqs = SearchQuerySet().models(Episode).filter(
 190                     emission_slug_exact=self.object.slug, text=context['search_query'])
 191             episode_ids = [x.pk for x in sqs]
 192         else:
 193             episode_ids = None
 194
 195         context.update(self.get_emission_context(self.object, episode_ids=episode_ids))
 196         return context
 197 emissionEpisodes = EmissionEpisodesDetailView.as_view()
 198
 199
 200 class SoundFileEmbedView(DetailView):
 201     model = SoundFile
 202     template_name = 'soundfiles/embed.html'
 203
 204     def get_context_data(self, **kwargs):
 205         context = super(SoundFileEmbedView, self).get_context_data(**kwargs)
 206         if self.kwargs.get('episode_slug') != self.object.episode.slug:
 207             raise Http404()
 208         if self.kwargs.get('emission_slug') != self.object.episode.emission.slug:
 209             raise Http404()
 210         context['episode'] = self.object.episode
 211         return context
 212 soundfile_embed = SoundFileEmbedView.as_view()
 213
 214
 215 class SoundFileDialogEmbedView(DetailView):
 216     model = SoundFile
 217     template_name = 'soundfiles/dialog-embed.html'
 218
 219     def get_context_data(self, **kwargs):
 220         context = super(SoundFileDialogEmbedView, self).get_context_data(**kwargs)
 221         if self.kwargs.get('episode_slug') != self.object.episode.slug:
 222             raise Http404()
 223         if self.kwargs.get('emission_slug') != self.object.episode.emission.slug:
 224             raise Http404()
 225         context['episode'] = self.object.episode
 226         return context
 227 soundfile_dlg_embed = SoundFileDialogEmbedView.as_view()
 228
 229
 230
 231 class ProgramView(TemplateView):
 232     template_name = 'program.html'
 233
 234     def get_context_data(self, year=None, week=None, **kwargs):
 235         context = super(ProgramView, self).get_context_data(**kwargs)
 236
 237         context['weekday'] = datetime.today().weekday()
 238
 239         context['week'] = week = int(week) if week is not None else datetime.today().isocalendar()[1]
 240         context['year'] = year = int(year) if year is not None else datetime.today().isocalendar()[0]
 241         context['week_first_day'] = utils.tofirstdayinisoweek(year, week)
 242         context['week_last_day'] = context['week_first_day'] + timedelta(days=6)
 243
 244         return context
 245
 246 program = ProgramView.as_view()
 247
 248 @python_2_unicode_compatible
 249 class TimeCell:
 250     nonstop = None
 251     w = 1
 252     h = 1
 253     time_label = None
 254
 255     def __init__(self, i, j):
 256         self.x = i
 257         self.y = j
 258         self.schedules = []
 259
 260     def add_schedule(self, schedule):
 261         end_time = schedule.datetime + timedelta(
 262                 minutes=schedule.get_duration())
 263         self.time_label = '%02d:%02d-%02d:%02d' % (
 264                 schedule.datetime.hour,
 265                 schedule.datetime.minute,
 266                 end_time.hour,
 267                 end_time.minute)
 268         self.schedules.append(schedule)
 269
 270     def sorted_schedules(self):
 271         return sorted(self.schedules, key=lambda x: x.week_sort_key())
 272
 273     def __str__(self):
 274         if self.schedules:
 275             return ', '.join([x.emission.title for x in self.schedules])
 276         else:
 277             return self.nonstop
 278
 279     def __eq__(self, other):
 280         return (force_text(self) == force_text(other) and self.time_label == other.time_label)
 281
 282
 283 class Grid(TemplateView):
 284     template_name = 'grid.html'
 285
 286     def get_context_data(self, **kwargs):
 287         context = super(Grid, self).get_context_data(**kwargs)
 288
 289         nb_lines = 2 * 24 # the cells are half hours
 290         grid = []
 291
 292         times = ['%02d:%02d' % (x/2, x%2*30) for x in range(nb_lines)]
 293         # start grid after the night programs
 294         times = times[2*Schedule.DAY_HOUR_START:] + times[:2*Schedule.DAY_HOUR_START]
 295
 296         nonstops = []
 297         for nonstop in Nonstop.objects.all():
 298             if nonstop.start == nonstop.end:
 299                 continue
 300             if nonstop.start < nonstop.end:
 301                 nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
 302                                  nonstop.end.hour + nonstop.end.minute/60.,
 303                                  nonstop.title, nonstop.slug, nonstop])
 304             else:
 305                 # crossing midnight
 306                 nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
 307                                  24,
 308                                  nonstop.title, nonstop.slug, nonstop])
 309                 nonstops.append([0,
 310                                  nonstop.end.hour + nonstop.end.minute/60.,
 311                                  nonstop.title, nonstop.slug, nonstop])
 312         nonstops.sort()
 313
 314         for i in range(nb_lines):
 315             grid.append([])
 316             for j in range(7):
 317                 grid[-1].append(TimeCell(i, j))
 318
 319             nonstop = [x for x in nonstops if i>=x[0]*2 and i<x[1]*2][0]
 320             for time_cell in grid[-1]:
 321                 time_cell.nonstop = nonstop[2]
 322                 time_cell.nonstop_slug = nonstop[3]
 323                 time_cell.redirect_path = nonstop[4].redirect_path
 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(key=lambda x: x.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(key=lambda x: -x.get_duration())
 470                                     # then we add individual time labels to the
 471                                     # other schedules
 472                                     for schedule in current_cell_schedules:
 473                                         if schedule not in same_cell_below.schedules:
 474                                             end_time = schedule.datetime + timedelta(
 475                                                     minutes=schedule.get_duration())
 476                                             schedule.time_label = '%02d:%02d-%02d:%02d' % (
 477                                                     schedule.datetime.hour,
 478                                                     schedule.datetime.minute,
 479                                                     end_time.hour,
 480                                                     end_time.minute)
 481                                     grid[i][j].h += 1
 482                                     grid[i+cursor].remove(same_cell_below)
 483                                 elif same_cell_below_emissions and \
 484                                         current_cell_emissions.intersection(same_cell_below_emissions):
 485                                     same_cell_below.schedules = [x for x in
 486                                             same_cell_below.schedules if
 487                                             x.emission not in
 488                                             current_cell_emissions or
 489                                             x.get_duration() < 30]
 490                                 cursor += 1
 491                             break
 492                 except IndexError:
 493                     pass
 494
 495         # cut night at 3am
 496         grid = grid[:42]
 497         times = times[:42]
 498
 499         context['grid'] = grid
 500         context['times'] = times
 501         context['categories'] = Category.objects.all()
 502         context['weekdays'] = ['Lundi', 'Mardi', 'Mercredi', 'Jeudi',
 503                 'Vendredi', 'Samedi', 'Dimanche']
 504
 505         return context
 506
 507 grid = Grid.as_view()
 508
 509
 510 class Home(TemplateView):
 511     template_name = 'home.html'
 512
 513     def get_context_data(self, **kwargs):
 514         context = super(Home, self).get_context_data(**kwargs)
 515         context['emissions'] = Emission.objects.filter(archived=False).order_by('-creation_timestamp')[:3]
 516         context['newsitems'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')[:3]
 517
 518         context['soundfiles'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 519                 podcastable=True, fragment=False) \
 520                 .select_related().extra(select={
 521                     'first_diffusion': 'emissions_diffusion.datetime', },
 522                     select_params=(False, True),
 523                     where=['''datetime = (SELECT MIN(datetime)
 524                                             FROM emissions_diffusion
 525                                         WHERE episode_id = emissions_episode.id)'''],
 526                     tables=['emissions_diffusion'],).order_by('-creation_timestamp').distinct() [:3]
 527
 528         context['newsletter_form'] = SubscribeForm()
 529
 530         return context
 531
 532 home = Home.as_view()
 533
 534 class NewsItemView(DetailView):
 535     model = NewsItem
 536     def get_context_data(self, **kwargs):
 537         context = super(NewsItemView, self).get_context_data(**kwargs)
 538         context['categories'] = NewsCategory.objects.all()
 539         context['news'] = NewsItem.objects.all().order_by('-date')
 540         context['topiks'] = [x.topik for x in ItemTopik.objects.filter(newsitem=self.object)]
 541         return context
 542 newsitemview = NewsItemView.as_view()
 543
 544 class News(TemplateView):
 545     template_name = 'news.html'
 546     def get_context_data(self, **kwargs):
 547         context = super(News, self).get_context_data(**kwargs)
 548         context['focus'] = NewsItem.objects.exclude(date__gt=date.today()  # publication date
 549                 ).exclude(expiration_date__lt=date.today()  # expiration date
 550                 ).filter(got_focus__isnull=False
 551                 ).select_related('category').order_by('-date')[:10]
 552         context['news'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')
 553         return context
 554
 555 news = News.as_view()
 556
 557
 558 class Agenda(TemplateView):
 559     template_name = 'agenda.html'
 560     def get_context_data(self, **kwargs):
 561         context = super(Agenda, self).get_context_data(**kwargs)
 562         context['agenda'] = NewsItem.objects.exclude(date__gt=date.today()).filter(
 563                 event_date__gte=date.today()).order_by('date')[:20]
 564         context['news'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')
 565         context['previous_month'] = datetime.today().replace(day=1) - timedelta(days=2)
 566         return context
 567
 568 agenda = Agenda.as_view()
 569
 570
 571 class AgendaByMonth(MonthArchiveView):
 572     template_name = 'agenda.html'
 573     queryset = NewsItem.objects.filter(event_date__isnull=False)
 574     allow_future = True
 575     date_field = 'event_date'
 576     month_format = '%m'
 577
 578     def get_context_data(self, **kwargs):
 579         context = super(AgendaByMonth, self).get_context_data(**kwargs)
 580         context['agenda'] = context['object_list']
 581         context['news'] = NewsItem.objects.all().order_by('-date')
 582         return context
 583
 584 agenda_by_month = AgendaByMonth.as_view()
 585
 586
 587 class Emissions(TemplateView):
 588     template_name = 'emissions.html'
 589
 590     def get_context_data(self, **kwargs):
 591         context = super(Emissions, self).get_context_data(**kwargs)
 592         context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=False).order_by('title')
 593         context['categories'] = Category.objects.all()
 594         return context
 595
 596 emissions = Emissions.as_view()
 597
 598 class EmissionsArchives(TemplateView):
 599     template_name = 'emissions/archives.html'
 600
 601     def get_context_data(self, **kwargs):
 602         context = super(EmissionsArchives, self).get_context_data(**kwargs)
 603         context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=True).order_by('title')
 604         context['categories'] = Category.objects.all()
 605         return context
 606 emissionsArchives = EmissionsArchives.as_view()
 607
 608
 609 class Listen(TemplateView):
 610     template_name = 'listen.html'
 611
 612     def get_context_data(self, **kwargs):
 613         context = super(Listen, self).get_context_data(**kwargs)
 614         context['focus'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 615                 podcastable=True, got_focus__isnull=False) \
 616                 .select_related().extra(select={
 617                     'first_diffusion': 'emissions_diffusion.datetime', },
 618                     select_params=(False, True),
 619                     where=['''datetime = (SELECT MIN(datetime)
 620                                             FROM emissions_diffusion
 621                                         WHERE episode_id = emissions_episode.id)'''],
 622                     tables=['emissions_diffusion'],).order_by('-first_diffusion').distinct() [:10]
 623         context['soundfiles'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 624                 podcastable=True) \
 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('-creation_timestamp').distinct()
 632
 633
 634         return context
 635
 636 listen = Listen.as_view()
 637
 638 @cache_control(max_age=15)
 639 @csrf_exempt
 640 def onair(request):
 641     d = whatsonair()
 642     if d.get('episode'):
 643         d['episode'] = {
 644             'title': d['episode'].title,
 645             'url': d['episode'].get_absolute_url()
 646         }
 647     if d.get('emission'):
 648         chat_url = None
 649         if d['emission'].chat_open:
 650             chat_url = reverse('emission-chat', kwargs={'slug': d['emission'].slug})
 651         d['emission'] = {
 652             'title': d['emission'].title,
 653             'url': d['emission'].get_absolute_url(),
 654             'chat': chat_url,
 655         }
 656     if d.get('nonstop'):
 657         redirect_path = d['nonstop'].redirect_path
 658         d['nonstop'] = {
 659             'title': d['nonstop'].title,
 660         }
 661         if redirect_path:
 662             d['nonstop']['url'] = redirect_path
 663         d.update(get_current_nonstop_track())
 664     if d.get('current_slot'):
 665         del d['current_slot']
 666     return JsonResponse({'data': d})
 667
 668
 669 class NewsItemDetailView(DetailView):
 670     model = NewsItem
 671
 672 newsitem = NewsItemDetailView.as_view()
 673
 674 class RssCustomPodcastsFeed(Rss201rev2Feed):
 675     def add_root_elements(self, handler):
 676         super(RssCustomPodcastsFeed, self).add_root_elements(handler)
 677         emission = self.feed.get('emission')
 678         if emission and emission.image and emission.image.url:
 679             image_url = emission.image.url
 680         else:
 681             image_url = '/static/img/logo-panik-500.png'
 682         image_url = urlparse.urljoin(self.feed['link'], image_url)
 683         handler.startElement('image', {})
 684         if emission:
 685             handler.addQuickElement('title', emission.title)
 686         else:
 687             handler.addQuickElement('title', settings.RADIO_NAME)
 688         handler.addQuickElement('url', image_url)
 689         handler.endElement('image')
 690         handler.addQuickElement('itunes:explicit', 'no')  # invidividual items will get their own value
 691         handler.addQuickElement('itunes:image', None, {'href': image_url})
 692         if emission:
 693             if emission.subtitle:
 694                 handler.addQuickElement('itunes:subtitle', emission.subtitle)
 695             for category in emission.categories.all():
 696                 if category.itunes_category:
 697                     handler.addQuickElement('itunes:category', None, {'text': category.itunes_category})
 698
 699             handler.addQuickElement('itunes:author', emission.title)
 700             handler.startElement('itunes:owner', {})
 701             if emission.email:
 702                 handler.addQuickElement('itunes:email', emission.email)
 703             handler.addQuickElement('itunes:name', emission.title)
 704             handler.endElement('itunes:owner')
 705         else:
 706             handler.addQuickElement('itunes:author', settings.RADIO_NAME)
 707             handler.startElement('itunes:owner', {})
 708             handler.addQuickElement('itunes:email', 'info@radiopanik.org')
 709             handler.addQuickElement('itunes:name', settings.RADIO_NAME)
 710             handler.endElement('itunes:owner')
 711
 712     def root_attributes(self):
 713         attrs = super(RssCustomPodcastsFeed, self).root_attributes()
 714         attrs['xmlns:dc'] = 'http://purl.org/dc/elements/1.1/'
 715         attrs['xmlns:itunes'] = 'http://www.itunes.com/dtds/podcast-1.0.dtd'
 716         return attrs
 717
 718     def add_item_elements(self, handler, item):
 719         super(RssCustomPodcastsFeed, self).add_item_elements(handler, item)
 720         explicit = 'no'
 721         for tag in item.get('tags') or []:
 722             handler.addQuickElement('dc:subject', tag)
 723             if tag == 'explicit':
 724                 explicit = 'yes'
 725         if item.get('tags'):
 726             handler.addQuickElement('itunes:keywords', ','.join(item.get('tags')))
 727         handler.addQuickElement('itunes:explicit', explicit)
 728         episode = item.get('episode')
 729         if episode and episode.image and episode.image.url:
 730             image_url = urlparse.urljoin(self.feed['link'], episode.image.url)
 731             handler.addQuickElement('itunes:image', None, {'href': image_url})
 732         soundfile = item.get('soundfile')
 733         if soundfile.duration:
 734             handler.addQuickElement('itunes:duration', '%02d:%02d:%02d' % (
 735                 soundfile.duration / 3600,
 736                 soundfile.duration % 3600 / 60,
 737                 soundfile.duration % 60))
 738
 739
 740 class PodcastsFeed(Feed):
 741     title = '%s - Podcasts' % settings.RADIO_NAME
 742     link = '/'
 743     description_template = 'feed/soundfile.html'
 744     feed_type = RssCustomPodcastsFeed
 745
 746     def items(self):
 747         return SoundFile.objects.select_related().filter(
 748                 podcastable=True).order_by('-creation_timestamp')[:50]
 749
 750     def item_title(self, item):
 751         if item.fragment:
 752             return '[%s] %s - %s' % (item.episode.emission.title, item.title, item.episode.title)
 753         return '[%s] %s' % (item.episode.emission.title, item.episode.title)
 754
 755     def item_link(self, item):
 756         if item.fragment:
 757             return item.episode.get_absolute_url() + '#%s' % item.id
 758         return item.episode.get_absolute_url()
 759
 760     def item_enclosure_url(self, item):
 761         current_site = Site.objects.get(id=settings.SITE_ID)
 762         return add_domain(current_site.domain, item.get_format_url('mp3'))
 763
 764     def item_enclosure_length(self, item):
 765         sound_path = item.get_format_path('mp3')
 766         try:
 767             return os.stat(sound_path)[stat.ST_SIZE]
 768         except OSError:
 769             return 0
 770
 771     def item_enclosure_mime_type(self, item):
 772         return 'audio/mpeg'
 773
 774     def item_pubdate(self, item):
 775         return item.creation_timestamp
 776
 777     def item_extra_kwargs(self, item):
 778         return {'tags': [x.name for x in item.episode.tags.all()],
 779                 'soundfile': item,
 780                 'episode': item.episode}
 781
 782 podcasts_feed = PodcastsFeed()
 783
 784
 785 class RssNewsFeed(Feed):
 786     title = settings.RADIO_NAME
 787     link = '/news/'
 788     description_template = 'feed/newsitem.html'
 789
 790     def items(self):
 791         return NewsItem.objects.order_by('-date')[:20]
 792
 793 rss_news_feed = RssNewsFeed()
 794
 795 class Atom1FeedWithBaseXml(Atom1Feed):
 796     def root_attributes(self):
 797         root_attributes = super(Atom1FeedWithBaseXml, self).root_attributes()
 798         scheme, netloc, path, params, query, fragment  = urlparse.urlparse(self.feed['feed_url'])
 799         root_attributes['xml:base'] = urlparse.urlunparse((scheme, netloc, '/', params, query, fragment))
 800         return root_attributes
 801
 802 class AtomNewsFeed(RssNewsFeed):
 803     feed_type = Atom1FeedWithBaseXml
 804
 805 atom_news_feed = AtomNewsFeed()
 806
 807
 808 class EmissionPodcastsFeed(PodcastsFeed):
 809     description_template = 'feed/soundfile.html'
 810     feed_type = RssCustomPodcastsFeed
 811
 812     def __call__(self, request, *args, **kwargs):
 813         self.emission = Emission.objects.get(slug=kwargs.get('slug'))
 814         return super(EmissionPodcastsFeed, self).__call__(request, *args, **kwargs)
 815
 816     def item_title(self, item):
 817         if item.fragment:
 818             return '%s - %s' % (item.title, item.episode.title)
 819         return item.episode.title
 820
 821     @property
 822     def title(self):
 823         return self.emission.title
 824
 825     @property
 826     def description(self):
 827         return self.emission.subtitle
 828
 829     @property
 830     def link(self):
 831         return reverse('emission-view', kwargs={'slug': self.emission.slug})
 832
 833     def feed_extra_kwargs(self, obj):
 834         return {'emission': self.emission}
 835
 836     def items(self):
 837         return SoundFile.objects.select_related().filter(
 838                 podcastable=True,
 839                 episode__emission__slug=self.emission.slug).order_by('-creation_timestamp')[:50]
 840
 841 emission_podcasts_feed = EmissionPodcastsFeed()
 842
 843
 844 class Party(TemplateView):
 845     template_name = 'party.html'
 846
 847     def get_context_data(self, **kwargs):
 848         context = super(Party, self).get_context_data(**kwargs)
 849         t = random.choice(['newsitem']*2 + ['emission']*3 + ['soundfile']*1 + ['episode']*2)
 850         focus = Focus()
 851         if t == 'newsitem':
 852             focus.newsitem = NewsItem.objects.exclude(
 853                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 854         elif t == 'emission':
 855             focus.emission = Emission.objects.exclude(
 856                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 857         elif t == 'episode':
 858             focus.episode = Episode.objects.exclude(
 859                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 860         elif t == 'soundfile':
 861             focus.soundfile = SoundFile.objects.exclude(
 862                     episode__image__isnull=True).exclude(episode__image__exact='').order_by('?')[0]
 863
 864         context['focus'] = focus
 865
 866         return context
 867
 868 party = Party.as_view()
 869
 870
 871
 872 class Chat(DetailView, EmissionMixin):
 873     model = Emission
 874     template_name = 'chat.html'
 875
 876 chat = cache_control(max_age=15)(Chat.as_view())