views.py 20.1 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
24
25
class EmissionDetailView(DetailView):
    model = Emission

    def get_context_data(self, **kwargs):
        context = super(EmissionDetailView, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
26
        context['sectionName'] = "emissions"
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
        context['schedules'] = Schedule.objects.filter(emission=self.object).order_by('datetime')

        # get all episodes, with an additional attribute to get the date of
        # their first diffusion
        context['episodes'] = \
                Episode.objects.select_related().filter(emission=self.object
                    ).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 = {}
        for soundfile in SoundFile.objects.filter(podcastable=True,
                fragment=False, episode__emission=self.object):
            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
emission = EmissionDetailView.as_view()

class EpisodeDetailView(DetailView):
    model = Episode

    def get_context_data(self, **kwargs):
        context = super(EpisodeDetailView, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
62
        context['sectionName'] = "emissions"
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
        context['diffusions'] = Diffusion.objects.filter(episode=self.object.id)
        context['soundfiles'] = SoundFile.objects.filter(episode=self.object.id)
        context['emission'] = Emission.objects.get(slug=self.kwargs.get('emission_slug'))
        # get all episodes, with an additional attribute to get the date of
        # their first diffusion
        context['episodes'] = \
                Episode.objects.filter(emission=context['emission']
                    ).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 = {}
        for soundfile in SoundFile.objects.filter(podcastable=True,
                fragment=False, episode__emission=self.object):
            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
episode = EpisodeDetailView.as_view()

Simon Daron's avatar
Simon Daron committed
93

Simon Daron's avatar
Simon Daron committed
94
95
96
class ProgramView(TemplateView):
    template_name = 'program.html'

Simon Daron's avatar
Simon Daron committed
97
    def get_context_data(self, year=None, week=None, **kwargs):
Simon Daron's avatar
Simon Daron committed
98
        context = super(ProgramView, self).get_context_data(**kwargs)
Simon Daron's avatar
Simon Daron committed
99
        context['sectionName'] = "emissions"
100
        schedules = Schedule.objects.select_related().order_by('datetime')
Simon Daron's avatar
Simon Daron committed
101
102
103
104
105
        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
106
        context['weekday'] = datetime.today().weekday()
Simon Daron's avatar
Simon Daron committed
107
108
        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
109
110
111
112
        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
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
150
151
152
        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
153
        context['sectionName'] = "emissions"
Simon Daron's avatar
Simon Daron committed
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
189
190
191

        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])

192
        for schedule in Schedule.objects.select_related().order_by('datetime'):
Simon Daron's avatar
Simon Daron committed
193
194
195
196
197
198
199
200
201
202
203
204
            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]

205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
        # 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
232
233
234

        # 1st thing is to merge cells on the same line, this will mostly catch
        # consecutive nonstop cells
Simon Daron's avatar
Simon Daron committed
235
236
237
238
239
240
        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
241
242
                    # if the cells are identical, they are removed from the
                    # grid, and current cell width is increased
Simon Daron's avatar
Simon Daron committed
243
244
245
246
247
248
                    while grid[i][j+t] == cell:
                        cell.w += 1
                        grid[i][j+t] = None
                        t += 1
                except IndexError:
                    pass
fred's avatar
fred committed
249
250

            # once we're done we remove empty cells
Simon Daron's avatar
Simon Daron committed
251
252
            grid[i] = [x for x in grid[i] if x is not None]

fred's avatar
fred committed
253
254
        # 2nd thing is to merge cells vertically, this is emissions that last
        # for more than 30 minutes
Simon Daron's avatar
Simon Daron committed
255
256
257
258
259
260
261
262
        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
263
                        # we look if the next time cell has the same emissions
Simon Daron's avatar
Simon Daron committed
264
265
                        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
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
309
310
311
                        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)
312
313
                                    # we set the cell time label to the longest
                                    # period
fred's avatar
fred committed
314
                                    grid[i][j].time_label = same_cell_below.time_label
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
                                    # 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
330
331
332
                                    grid[i][j].h += 1
                                    grid[i+cursor].remove(same_cell_below)
                                cursor += 1
Simon Daron's avatar
Simon Daron committed
333
334
335
336
337
338
339
340
341
342
                            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
343
        context['categories'] = Category.objects.all()
Simon Daron's avatar
Simon Daron committed
344
345
346
347
348
349
350
351
352
353
354
355
356
        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
357
        context['sectionName'] = "home"
Simon Daron's avatar
Simon Daron committed
358
        context['news'] = list(NewsItem.objects.all().exclude(image__isnull=True).exclude(image__exact='').order_by('-datetime')[:10])
359
        context['emissions'] = list(Emission.objects.filter(archived=False).order_by('title'))
Simon Daron's avatar
Simon Daron committed
360
361
362
363
364
365
        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
366
367
368
369
        return context

home = Home.as_view()

Simon Daron's avatar
Simon Daron committed
370
371
372
class NewsItemDetailView(DetailView):
    model = NewsItem
    def get_context_data(self, **kwargs):
Simon Daron's avatar
Simon Daron committed
373
        context['sectionName'] = "news"
Simon Daron's avatar
Simon Daron committed
374
375
376
377
378
379
        context = super(NewsItemDetailView, self).get_context_data(**kwargs)
        context['news'] = list(NewsItem.objects.all().order_by('-datetime')[:60])
        context['categories'] = list(NewsCategory.objects.all())
        return context
newsitem = NewsItemDetailView.as_view()

Simon Daron's avatar
Simon Daron committed
380
381
382
383
384
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
385
        context['sectionName'] = "news"
386
387
388
        context['newsImaged'] = list(NewsItem.objects.all().exclude(image__isnull=True).exclude(image__exact='').order_by('-datetime')[:3])
        context['news'] = list(NewsItem.objects.all().order_by('-datetime')[:60])
        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"
Simon Daron's avatar
Simon Daron committed
399
        context['emissions'] = Emission.objects.all().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
409
410
411
412
413
414
415
416
417
418
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
419
        context['sectionName'] = "listen"
Simon Daron's avatar
Simon Daron committed
420
        context['sounds'] = SoundFile.objects.all()[:15]
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
        listenable = []
        x=0
        for episode in Episode.objects.all().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').reverse():
            if x >= 24:
		break
            elif episode.has_sound is None:
		continue
            else:
                x+=1
                listenable .append(episode)
		
        context['episodes'] = listenable
Simon Daron's avatar
Simon Daron committed
441
442
443
444
445
        return context

listen = Listen.as_view()


446
@cache_control(max_age=25)
Simon Daron's avatar
Simon Daron committed
447
448
449
450
451
452
453
454
455
456
457
458
459
460
@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
461
462
463
464
465
    if d.get('nonstop'):
        d['nonstop'] = {
            'title': d['nonstop'].title,
        }
    if d.get('current_slot'):
fred's avatar
fred committed
466
        del d['current_slot']
Simon Daron's avatar
Simon Daron committed
467
468
469
470
471
472
473
    return d


class NewsItemDetailView(DetailView):
    model = NewsItem

newsitem = NewsItemDetailView.as_view()