views.py 21.5 KB
Newer Older
Simon Daron's avatar
Simon Daron committed
1
from datetime import datetime, timedelta
Simon Daron's avatar
Simon Daron committed
2
import time
3
import math
Simon Daron's avatar
Simon Daron committed
4

5
from django.views.decorators.cache import cache_control
Simon Daron's avatar
Simon Daron committed
6
7
8
from django.views.generic.base import TemplateView
from django.views.generic.detail import DetailView
from django.views.decorators.csrf import csrf_exempt
fred's avatar
fred committed
9
from django.views.generic.dates import _date_from_string
Simon Daron's avatar
Simon Daron committed
10

Simon Daron's avatar
Simon Daron committed
11
12
from django.core.paginator import Paginator

Simon Daron's avatar
Simon Daron committed
13
14
from jsonresponse import to_json

Simon Daron's avatar
Simon Daron committed
15
from emissions.models import Category, Emission, Episode, Diffusion, SoundFile, \
Simon Daron's avatar
Simon Daron committed
16
17
        Schedule, Nonstop, NewsItem, NewsCategory

fred's avatar
fred committed
18
from emissions.utils import whatsonair, period_program
Simon Daron's avatar
Simon Daron committed
19

Simon Daron's avatar
Simon Daron committed
20

21
22
23
class EmissionMixin:
    def get_emission_context(self, emission):
        context = {}
24
25
26
27

        # get all episodes, with an additional attribute to get the date of
        # their first diffusion
        context['episodes'] = \
28
                Episode.objects.select_related().filter(emission=emission
29
30
31
32
33
34
35
36
37
38
39
40
                    ).extra(select={
                        'first_diffusion': 'emissions_diffusion.datetime',
                        },
                        select_params=(False, True),
                        where=['''datetime = (SELECT MIN(datetime)
                                                FROM emissions_diffusion
                                               WHERE episode_id = emissions_episode.id)'''],
                        tables=['emissions_diffusion'],
                    ).order_by('-first_diffusion')

        # get all related soundfiles in a single query
        soundfiles = {}
fred's avatar
fred committed
41
        for soundfile in SoundFile.objects.select_related().filter(podcastable=True,
42
                fragment=False, episode__emission=emission):
43
44
45
46
47
48
49
50
            soundfiles[soundfile.episode_id] = soundfile

        # replace dynamic property by a static attribute, to avoid database
        # lookups
        for episode in context['episodes']:
            episode.main_sound = soundfiles.get(episode.id)

        return context
51
52
53
54
55
56
57
58
59
60
61
62



class EmissionDetailView(DetailView, EmissionMixin):
    model = Emission

    def get_context_data(self, **kwargs):
        context = super(EmissionDetailView, self).get_context_data(**kwargs)
        context['sectionName'] = "Emissions"
        context['schedules'] = Schedule.objects.select_related().filter(emission=self.object).order_by('datetime')
        context.update(self.get_emission_context(self.object))
        return context
63
64
emission = EmissionDetailView.as_view()

65
class EpisodeDetailView(DetailView, EmissionMixin):
66
67
68
69
    model = Episode

    def get_context_data(self, **kwargs):
        context = super(EpisodeDetailView, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
70
        context['sectionName'] = "Emissions"
71
72
        context['diffusions'] = Diffusion.objects.select_related().filter(episode=self.object.id)
        context['soundfiles'] = SoundFile.objects.select_related().filter(episode=self.object.id)
73
        context['emission'] = Emission.objects.get(slug=self.kwargs.get('emission_slug'))
74
        context.update(self.get_emission_context(context['emission']))
75
76
77
        return context
episode = EpisodeDetailView.as_view()

Simon Daron's avatar
Simon Daron committed
78

79
80
81
82
83
84
85
86
87
88
89
90
class EmissionEpisodesDetailView(DetailView, EmissionMixin):
    model = Emission
    template_name = 'emissions/episodes.html'

    def get_context_data(self, **kwargs):
        context = super(EmissionEpisodesDetailView, self).get_context_data(**kwargs)
        context['sectionName'] = "Emissions"
        context['schedules'] = Schedule.objects.select_related().filter(emission=self.object).order_by('datetime')
        context.update(self.get_emission_context(self.object))
        return context
emissionEpisodes = EmissionEpisodesDetailView.as_view()

Simon Daron's avatar
Simon Daron committed
91
92
93
class ProgramView(TemplateView):
    template_name = 'program.html'

Simon Daron's avatar
Simon Daron committed
94
    def get_context_data(self, year=None, week=None, **kwargs):
Simon Daron's avatar
Simon Daron committed
95
        context = super(ProgramView, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
96
        context['sectionName'] = "Emissions"
97
        schedules = Schedule.objects.select_related().order_by('datetime')
Simon Daron's avatar
Simon Daron committed
98
99
100
101
102
        days = []
        for day in range(7):
            days.append({'schedules': [x for x in schedules if x.is_on_weekday(day+1)],
                         'datetime': datetime(2007, 1, day+1)})
        context['days'] = days
Simon Daron's avatar
Simon Daron committed
103
        context['weekday'] = datetime.today().weekday()
Simon Daron's avatar
Simon Daron committed
104
105
        context['week'] = week = int(week) if week is not None else datetime.today().isocalendar()[1]-1
        context['year'] = year = int(year) if year is not None else datetime.today().year
Simon Daron's avatar
Simon Daron committed
106
107
108
109
        context['week_first_day'] = datetime.strptime(str(year)+' '+str(week)+' 1', '%Y %U %w')
        context['week_last_day'] = context['week_first_day'] + timedelta(days=+6)
        context['week_previous'] =  context['week_first_day'] + timedelta(days=-7)
        context['week_next'] = context['week_last_day']
Simon Daron's avatar
Simon Daron committed
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
        return context

program = ProgramView.as_view()

class TimeCell:
    nonstop = None
    w = 1
    h = 1
    time_label = None

    def __init__(self, i, j):
        self.x = i
        self.y = j
        self.schedules = []

    def add_schedule(self, schedule):
        end_time = schedule.datetime + timedelta(
                minutes=schedule.get_duration())
        self.time_label = '%02d:%02d-%02d:%02d' % (
                schedule.datetime.hour,
                schedule.datetime.minute,
                end_time.hour,
                end_time.minute)
        self.schedules.append(schedule)

    def __unicode__(self):
        if self.schedules:
            return ', '.join([x.emission.title for x in self.schedules])
        else:
            return self.nonstop

    def __eq__(self, other):
        return (unicode(self) == unicode(other) and self.time_label == other.time_label)


class Grid(TemplateView):
    template_name = 'grid.html'

    def get_context_data(self, **kwargs):
        context = super(Grid, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
150
        context['sectionName'] = "Emissions"
Simon Daron's avatar
Simon Daron committed
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188

        nb_lines = 2 * 24 # the cells are half hours
        grid = []

        times = ['%02d:%02d' % (x/2, x%2*30) for x in range(nb_lines)]
        # start grid after the night programs
        times = times[2*Schedule.DAY_HOUR_START:] + times[:2*Schedule.DAY_HOUR_START]

        nonstops = []
        for nonstop in Nonstop.objects.all():
            if nonstop.start < nonstop.end:
                nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
                                 nonstop.end.hour + nonstop.end.minute/60.,
                                 nonstop.title])
            else:
                # crossing midnight
                nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
                                 24,
                                 nonstop.title])
                nonstops.append([0,
                                 nonstop.end.hour + nonstop.end.minute/60.,
                                 nonstop.title])
        nonstops.sort()

        for i in range(nb_lines):
            grid.append([])
            for j in range(7):
                grid[-1].append(TimeCell(i, j))

            nonstop = [x for x in nonstops if i>=x[0]*2 and i<x[1]*2][0]
            for time_cell in grid[-1]:
                time_cell.nonstop = nonstop[2]
                if nonstop[1] == 5:
                    # the one ending at 5am will be cut down, so we inscribe
                    # its duration manually
                    time_cell.time_label = '%02d:00-%02d:00' % (
                            nonstop[0], nonstop[1])

189
        for schedule in Schedule.objects.select_related().order_by('datetime'):
Simon Daron's avatar
Simon Daron committed
190
191
192
193
194
195
196
197
198
199
200
201
            row_start = schedule.datetime.hour * 2 + \
                    int(math.ceil(schedule.datetime.minute / 30))
            day_no = schedule.get_weekday()

            for step in range(int(math.ceil(schedule.get_duration() / 30.))):
                if grid[(row_start+step)%nb_lines][day_no] is None:
                    grid[(row_start+step)%nb_lines][day_no] = TimeCell()
                grid[(row_start+step)%nb_lines][day_no].add_schedule(schedule)

        # start grid after the night programs
        grid = grid[2*Schedule.DAY_HOUR_START:] + grid[:2*Schedule.DAY_HOUR_START]

202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
        # look for the case where the same emission has different schedules for
        # the same time cell, for example if it lasts one hour the first week,
        # and two hours the third week.
        for i in range(nb_lines):
            grid[i] = [x for x in grid[i] if x is not None]
            for j, cell in enumerate(grid[i]):
                if grid[i][j] is None:
                    continue
                if len(grid[i][j].schedules) > 1:
                    time_cell_emissions = {}
                    for schedule in grid[i][j].schedules:
                        if not schedule.emission.id in time_cell_emissions:
                            time_cell_emissions[schedule.emission.id] = []
                        time_cell_emissions[schedule.emission.id].append(schedule)
                    for schedule_list in time_cell_emissions.values():
                        if len(schedule_list) == 1:
                            continue
                        # here it is, same cell, same emission, several
                        # schedules
                        schedule_list.sort(lambda x,y: -cmp(x.get_duration(), y.get_duration()))
                        for schedule in schedule_list[1:]:
                            grid[i][j].schedules.remove(schedule)
                            end_time = schedule.datetime + timedelta(minutes=schedule.get_duration())
                            schedule_list[0].time_label_extra = ', -%02d:%02d %s' % (
                                    end_time.hour, end_time.minute, schedule.weeks_string)

        # merge adjacent
fred's avatar
fred committed
229
230
231

        # 1st thing is to merge cells on the same line, this will mostly catch
        # consecutive nonstop cells
Simon Daron's avatar
Simon Daron committed
232
233
234
235
236
237
        for i in range(nb_lines):
            for j, cell in enumerate(grid[i]):
                if grid[i][j] is None:
                    continue
                t = 1
                try:
fred's avatar
fred committed
238
239
                    # if the cells are identical, they are removed from the
                    # grid, and current cell width is increased
Simon Daron's avatar
Simon Daron committed
240
241
242
243
244
245
                    while grid[i][j+t] == cell:
                        cell.w += 1
                        grid[i][j+t] = None
                        t += 1
                except IndexError:
                    pass
fred's avatar
fred committed
246
247

            # once we're done we remove empty cells
Simon Daron's avatar
Simon Daron committed
248
249
            grid[i] = [x for x in grid[i] if x is not None]

fred's avatar
fred committed
250
251
        # 2nd thing is to merge cells vertically, this is emissions that last
        # for more than 30 minutes
Simon Daron's avatar
Simon Daron committed
252
253
254
255
256
257
258
259
        for i in range(nb_lines):
            grid[i] = [x for x in grid[i] if x is not None]
            for j, cell in enumerate(grid[i]):
                if grid[i][j] is None:
                    continue
                t = 1
                try:
                    while True:
fred's avatar
fred committed
260
                        # we look if the next time cell has the same emissions
Simon Daron's avatar
Simon Daron committed
261
262
                        same_cell_below = [(bj, x) for bj, x in enumerate(grid[i+cell.h])
                                           if x == cell and x.y == cell.y and x.w == cell.w]
fred's avatar
fred committed
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
                        if same_cell_below:
                            # if the cell was identical, we remove it and
                            # increase current cell height
                            bj, same_cell_below = same_cell_below[0]
                            del grid[i+cell.h][bj]
                            cell.h += 1
                        else:
                            # if the cell is different, we have a closer look
                            # to it, so we can remove emissions that will
                            # already be mentioned in the current cell.
                            #
                            # For example:
                            #  - 7am30, seuls contre tout, 1h30
                            #  - 8am, du pied gauche & la voix de la rue, 1h
                            # should produce: (this is case A)
                            #  |      7:30-9:00      |
                            #  |  seuls contre tout  |
                            #  |---------------------|
                            #  |      8:00-9:00      |
                            #  |   du pied gauche    |
                            #  |  la voix de la rue  |
                            #
                            # On the other hand, if all three emissions started
                            # at 7am30, we want: (this is case B)
                            #  |      7:30-9:00      |
                            #  |  seuls contre tout  |
                            #  |   du pied gauche    |
                            #  |  la voix de la rue  |
                            # that is we merge all of them, ignoring the fact
                            # that the other emissions will stop at 8am30
                            current_cell_schedules = set(grid[i][j].schedules)
                            cursor = 1
                            while True and current_cell_schedules:
                                same_cell_below = [x for x in grid[i+cursor] if x.y == grid[i][j].y]
                                if not same_cell_below:
                                    cursor += 1
                                    continue
                                same_cell_below = same_cell_below[0]
                                if current_cell_schedules.issubset(same_cell_below.schedules):
                                    # this handles case A (see comment above)
                                    for schedule in current_cell_schedules:
                                        if schedule in same_cell_below.schedules:
                                            same_cell_below.schedules.remove(schedule)
                                elif same_cell_below.schedules and \
                                        current_cell_schedules.issuperset(same_cell_below.schedules):
                                    # this handles case B (see comment above)
309
310
                                    # we set the cell time label to the longest
                                    # period
fred's avatar
fred committed
311
                                    grid[i][j].time_label = same_cell_below.time_label
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
                                    # then we sort emissions so the longest are
                                    # put first
                                    grid[i][j].schedules.sort(
                                            lambda x, y: -cmp(x.get_duration(), y.get_duration()))
                                    # then we add individual time labels to the
                                    # other schedules
                                    for schedule in current_cell_schedules:
                                        if schedule not in same_cell_below.schedules:
                                            end_time = schedule.datetime + timedelta(
                                                    minutes=schedule.get_duration())
                                            schedule.time_label = '%02d:%02d-%02d:%02d' % (
                                                    schedule.datetime.hour,
                                                    schedule.datetime.minute,
                                                    end_time.hour,
                                                    end_time.minute)
fred's avatar
fred committed
327
328
329
                                    grid[i][j].h += 1
                                    grid[i+cursor].remove(same_cell_below)
                                cursor += 1
Simon Daron's avatar
Simon Daron committed
330
331
332
333
334
335
336
337
338
339
                            break
                except IndexError:
                    pass

        # cut night at 3am
        grid = grid[:42]
        times = times[:42]

        context['grid'] = grid
        context['times'] = times
Simon Daron's avatar
Simon Daron committed
340
        context['categories'] = Category.objects.all()
Simon Daron's avatar
Simon Daron committed
341
342
343
344
345
346
347
348
349
350
351
352
353
        context['weekdays'] = ['Lundi', 'Mardi', 'Mercredi', 'Jeudi',
                'Vendredi', 'Samedi', 'Dimanche']

        return context

grid = Grid.as_view()


class Home(TemplateView):
    template_name = 'home.html'

    def get_context_data(self, **kwargs):
        context = super(Home, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
354
        context['sectionName'] = "Home"
Simon Daron's avatar
Simon Daron committed
355
356
        context['focus'] = list(NewsItem.objects.all().exclude(image__isnull=True).exclude(image__exact='').order_by('-datetime')[0:3])
        context['news'] = list(NewsItem.objects.all().exclude(image__isnull=True).exclude(image__exact='').order_by('-datetime')[3:10])
357
        context['emissions'] = list(Emission.objects.filter(archived=False).order_by('title'))
Simon Daron's avatar
Simon Daron committed
358
359
360
361
362
363
        schedules = Schedule.objects.select_related().order_by('datetime')
        days = []
        for day in range(7):
            days.append({'schedules': [x for x in schedules if x.is_on_weekday(day+1)],
                         'datetime': datetime(2007, 1, day+1)})
        context['days'] = days
Simon Daron's avatar
Simon Daron committed
364
365
366
367
        return context

home = Home.as_view()

Simon Daron's avatar
Simon Daron committed
368
class NewsItemView(DetailView):
Simon Daron's avatar
Simon Daron committed
369
370
    model = NewsItem
    def get_context_data(self, **kwargs):
Simon Daron's avatar
Simon Daron committed
371
        context = super(NewsItemView, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
372
        context['sectionName'] = "News"
Simon Daron's avatar
Simon Daron committed
373
374
375
        context['focus'] = list(NewsItem.objects.all().exclude(image__isnull=True).exclude(image__exact='').order_by('-datetime')[0:3])
        context['news'] = list(NewsItem.objects.all().exclude(image__isnull=True).exclude(image__exact='').order_by('-datetime')[3:10])
        context['newsAll'] = list(NewsItem.objects.all().order_by('-datetime')[:60])
Simon Daron's avatar
Simon Daron committed
376
377
        context['categories'] = list(NewsCategory.objects.all())
        return context
Simon Daron's avatar
Simon Daron committed
378
newsitemview = NewsItemView.as_view()
Simon Daron's avatar
Simon Daron committed
379

Simon Daron's avatar
Simon Daron committed
380
381
382
383
class News(TemplateView):
    template_name = 'news.html'
    def get_context_data(self, **kwargs):
        context = super(News, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
384
        context['sectionName'] = "News"
Simon Daron's avatar
Simon Daron committed
385
386
387
        context['focus'] = list(NewsItem.objects.all().exclude(image__isnull=True).exclude(image__exact='').order_by('-datetime')[0:3])
        context['news'] = list(NewsItem.objects.all().exclude(image__isnull=True).exclude(image__exact='').order_by('-datetime')[3:10])
        context['newsAll'] = list(NewsItem.objects.all().order_by('-datetime')[:60])
388
        context['categories'] = list(NewsCategory.objects.all())
Simon Daron's avatar
Simon Daron committed
389
390
391
392
        return context

news = News.as_view()

Simon Daron's avatar
Simon Daron committed
393
394
395
396
397
class Emissions(TemplateView):
    template_name = 'emissions.html'

    def get_context_data(self, **kwargs):
        context = super(Emissions, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
398
        context['sectionName'] = "Emissions"
399
        context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=False).order_by('title')
Simon Daron's avatar
Simon Daron committed
400
        context['categories'] = Category.objects.all()
Simon Daron's avatar
Simon Daron committed
401
402
403
404
        return context

emissions = Emissions.as_view()

Simon Daron's avatar
Simon Daron committed
405
406
407
408
class Archives(TemplateView):
    template_name = 'archives.html'
    def get_context_data(self, **kwargs):
        context = super(Archives, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
409
        context['sectionName'] = "Emissions"
fred's avatar
fred committed
410
        context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=True).order_by('title')
Simon Daron's avatar
Simon Daron committed
411
412
413
414
        return context

archives = Archives.as_view()

Simon Daron's avatar
Simon Daron committed
415
416
417
418
419
420
421
422
423
424
425
426
427
428
class Get(TemplateView):
    template_name = 'get.html'
    def get_context_data(self, **kwargs):
        context = super(Get, self).get_context_data(**kwargs)
        context['emissions'] = Emission.objects.all().order_by('title')
        return context

get = Get.as_view()

class Listen(TemplateView):
    template_name = 'listen.html'

    def get_context_data(self, **kwargs):
        context = super(Listen, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
429
        context['sectionName'] = "Listen"
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
        context['episodes'] = Episode.objects.filter(
                soundfile__podcastable=True, soundfile__fragment=False) \
                .select_related().extra(select={
                    'first_diffusion': 'emissions_diffusion.datetime', },
                    select_params=(False, True),
                    where=['''datetime = (SELECT MIN(datetime)
                                            FROM emissions_diffusion
                                        WHERE episode_id = emissions_episode.id)'''],
                    tables=['emissions_diffusion'],).order_by('-first_diffusion') [:60]

        # get all related soundfiles in a single query
        soundfiles = {}
        for soundfile in SoundFile.objects.select_related().filter(podcastable=True,
                fragment=False, episode__in=[x.id for x in context['episodes']]):
            soundfiles[soundfile.episode_id] = soundfile

        # replace dynamic property by a static attribute, to avoid database
        # lookups
        for episode in context['episodes']:
            episode.main_sound = soundfiles.get(episode.id)
fred's avatar
fred committed
450

Simon Daron's avatar
Simon Daron committed
451
452
453
454
455
        return context

listen = Listen.as_view()


456
@cache_control(max_age=25)
Simon Daron's avatar
Simon Daron committed
457
458
459
460
461
462
463
464
465
466
467
468
469
470
@csrf_exempt
@to_json('api')
def onair(request):
    d = whatsonair()
    if d.get('episode'):
        d['episode'] = {
            'title': d['episode'].title,
            'url': d['episode'].get_absolute_url()
        }
    if d.get('emission'):
        d['emission'] = {
            'title': d['emission'].title,
            'url': d['emission'].get_absolute_url()
        }
fred's avatar
fred committed
471
472
473
474
475
    if d.get('nonstop'):
        d['nonstop'] = {
            'title': d['nonstop'].title,
        }
    if d.get('current_slot'):
fred's avatar
fred committed
476
        del d['current_slot']
Simon Daron's avatar
Simon Daron committed
477
478
479
480
481
482
483
    return d


class NewsItemDetailView(DetailView):
    model = NewsItem

newsitem = NewsItemDetailView.as_view()
fred's avatar
fred committed
484
485
486
487
488
489
490
491
492
493
494
495
496
497


class PodcastsFeedView(TemplateView):
    template_name = 'podcasts.html'
    content_type = 'application/rss+xml'

    def get_context_data(self, **kwargs):
        context = super(PodcastsFeedView, self).get_context_data(**kwargs)
        context['base_url'] = self.request.build_absolute_uri('/')[:-1]
        context['soundfiles'] = SoundFile.objects.select_related().filter(
                podcastable=True).order_by('-creation_timestamp')
        return context

podcasts_feed = PodcastsFeedView.as_view()