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comparison gpp/podcast/views.py @ 402:9175392da056

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Fixing #198; add a media player to the podcast pages.
author Brian Neal <bgneal@gmail.com>
date Sun, 27 Mar 2011 01:51:18 +0000
parents 1ed461fd2030
children 6e425c9b9d16
comparison
equal deleted inserted replaced
401:463649d7698b 402:9175392da056
1 """Views for the podcast application""" 1 """
2 Views for the podcast application.
3
4 """
2 import os.path 5 import os.path
3 from urlparse import urlparse 6 from urlparse import urlparse
4 7
5 from django.shortcuts import render_to_response 8 from django.shortcuts import render_to_response
6 from django.template import RequestContext 9 from django.template import RequestContext
7 from django.shortcuts import get_object_or_404 10 from django.shortcuts import get_object_or_404
11 import django.utils.simplejson as json
8 12
9 from podcast.models import Channel 13 from podcast.models import Channel
10 from podcast.models import Item 14 from podcast.models import Item
11 15
12 16
13 def get_ext_from_url(url): 17 def get_ext_from_url(url):
14 """ 18 """
15 This function returns the extension part of the path from the given 19 This function returns the extension part of the path from the given
16 url. 20 url.
17 """ 21 """
18 return os.path.splitext(urlparse(url).path)[1] 22 ext = os.path.splitext(urlparse(url).path)[1]
23 if ext.startswith('.'):
24 ext = ext[1:]
25 return ext
26
27
28 def jplayer_params(ext, url, alt_ext, alt_url):
29 """
30 Compute and returns a 2-tuple: (jplayer_media, jplayer_supplied)
31 where
32 jplayer_media: a string representation of the JSON for the
33 jplayer setMedia parameter
34 jplayer_supplied: the string for the jplayer supplied parameter
35
36 media_list is an input list or tuple of 2-tuples of the form
37 (media_type, url)
38 where media_type is e.g. mp3, m4a, ogg, etc.
39
40 """
41 media = dict([(ext, url)])
42 if alt_ext and alt_url:
43 media[alt_ext] = alt_url
44
45 # prefer mp4 to mp3
46 if alt_ext is None:
47 supplied = [ext]
48 elif ext == "m4a":
49 supplied = (ext, alt_ext)
50 else:
51 supplied = (alt_ext, ext)
52
53 supplied = ", ".join(supplied)
54
55 return json.dumps(media), supplied
19 56
20 57
21 def index(request): 58 def index(request):
22 try: 59 try:
23 channel = Channel.objects.get(pk=1) 60 channel = Channel.objects.get(pk=1)
24 except Channel.DoesNotExist: 61 except Channel.DoesNotExist:
25 channel = None 62 channel = None
26 63
27 return render_to_response('podcast/index.html', { 64 return render_to_response('podcast/index.html', {
28 'channel': channel, 65 'channel': channel,
29 }, 66 },
30 context_instance = RequestContext(request)) 67 context_instance = RequestContext(request))
31 68
32 69
33 def detail(request, id): 70 def detail(request, id):
36 ext = get_ext_from_url(podcast.enclosure_url) 73 ext = get_ext_from_url(podcast.enclosure_url)
37 alt_ext = None 74 alt_ext = None
38 if podcast.alt_enclosure_url: 75 if podcast.alt_enclosure_url:
39 alt_ext = get_ext_from_url(podcast.alt_enclosure_url) 76 alt_ext = get_ext_from_url(podcast.alt_enclosure_url)
40 77
78 jplayer_media, jplayer_supplied = jplayer_params(ext, podcast.enclosure_url,
79 alt_ext, podcast.alt_enclosure_url)
80
41 return render_to_response('podcast/detail.html', { 81 return render_to_response('podcast/detail.html', {
42 'channel': podcast.channel, 82 'channel': podcast.channel,
43 'podcast': podcast, 83 'podcast': podcast,
44 'ext': ext, 84 'ext': ext,
45 'alt_ext': alt_ext, 85 'alt_ext': alt_ext,
86 'jplayer_media': jplayer_media,
87 'jplayer_supplied': jplayer_supplied,
46 }, 88 },
47 context_instance = RequestContext(request)) 89 context_instance = RequestContext(request))
48 90
49 91
50 def feed(request): 92 def feed(request):
51 try: 93 try:
52 channel = Channel.objects.get(pk=1) 94 channel = Channel.objects.get(pk=1)
53 except Channel.DoesNotExist: 95 except Channel.DoesNotExist:
54 channel = None 96 channel = None
55 return render_to_response('podcast/feed.xml', { 97 return render_to_response('podcast/feed.xml', {
56 'channel': channel, 98 'channel': channel,
57 }, 99 },
58 context_instance = RequestContext(request)) 100 context_instance = RequestContext(request))