Mercurial > public > sg101

comparison podcast/views.py @ 581:ee87ea74d46b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
For Django 1.4, rearranged project structure for new manage.py.
author Brian Neal <bgneal@gmail.com>
date Sat, 05 May 2012 17:10:48 -0500
parents gpp/podcast/views.py@6e425c9b9d16
children 89b240fe9297
comparison
equal deleted inserted replaced
580:c525f3e0b5d0 581:ee87ea74d46b
1 """
2 Views for the podcast application.
3
4 """
5 import os.path
6 from urlparse import urlparse
7
8 from django.shortcuts import render_to_response
9 from django.template import RequestContext
10 from django.shortcuts import get_object_or_404
11 import django.utils.simplejson as json
12
13 from podcast.models import Channel
14 from podcast.models import Item
15
16
17 def get_ext_from_url(url):
18 """
19 This function returns the extension part of the path from the given
20 url.
21 """
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
56
57
58 def index(request):
59 try:
60 channel = Channel.objects.get(pk=1)
61 except Channel.DoesNotExist:
62 channel = None
63
64 return render_to_response('podcast/index.html', {
65 'channel': channel,
66 },
67 context_instance = RequestContext(request))
68
69
70 def detail(request, id):
71 podcast = get_object_or_404(Item.objects.select_related(), pk = id)
72
73 ext = get_ext_from_url(podcast.enclosure_url)
74 alt_ext = None
75 if podcast.alt_enclosure_url:
76 alt_ext = get_ext_from_url(podcast.alt_enclosure_url)
77
78 jplayer_media, jplayer_supplied = jplayer_params(ext, podcast.enclosure_url,
79 alt_ext, podcast.alt_enclosure_url)
80
81 return render_to_response('podcast/detail.html', {
82 'channel': podcast.channel,
83 'podcast': podcast,
84 'ext': ext,
85 'alt_ext': alt_ext,
86 'jplayer_media': jplayer_media,
87 'jplayer_supplied': jplayer_supplied,
88 },
89 context_instance = RequestContext(request))
90
91
92 def feed(request):
93 try:
94 channel = Channel.objects.get(pk=1)
95 except Channel.DoesNotExist:
96 channel = None
97
98 if channel:
99 channel.items = Item.objects.filter(channel=channel)
100
101 return render_to_response('podcast/feed.xml', {
102 'channel': channel,
103 },
104 context_instance = RequestContext(request))