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bgneal@402
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1 """
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bgneal@402
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2 Views for the podcast application.
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bgneal@402
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3
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bgneal@402
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4 """
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bgneal@679
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5 import json
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bgneal@143
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6 import os.path
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bgneal@143
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7 from urlparse import urlparse
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gremmie@1
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8
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bgneal@1032
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9 from django.shortcuts import render
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gremmie@1
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10 from django.shortcuts import get_object_or_404
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gremmie@1
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11
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gremmie@1
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12 from podcast.models import Channel
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gremmie@1
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13 from podcast.models import Item
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gremmie@1
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14
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gremmie@1
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15
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bgneal@143
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16 def get_ext_from_url(url):
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bgneal@403
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17 """
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bgneal@403
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18 This function returns the extension part of the path from the given
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bgneal@403
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19 url.
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bgneal@403
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20 """
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21 ext = os.path.splitext(urlparse(url).path)[1]
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bgneal@403
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22 if ext.startswith('.'):
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23 ext = ext[1:]
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24 return ext
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bgneal@402
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25
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bgneal@402
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26
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bgneal@402
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27 def jplayer_params(ext, url, alt_ext, alt_url):
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bgneal@403
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28 """
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bgneal@403
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29 Compute and returns a 2-tuple: (jplayer_media, jplayer_supplied)
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bgneal@403
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30 where
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31 jplayer_media: a string representation of the JSON for the
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bgneal@403
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32 jplayer setMedia parameter
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bgneal@403
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33 jplayer_supplied: the string for the jplayer supplied parameter
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bgneal@402
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34
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bgneal@403
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35 media_list is an input list or tuple of 2-tuples of the form
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36 (media_type, url)
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37 where media_type is e.g. mp3, m4a, ogg, etc.
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38
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bgneal@403
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39 """
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40 media = dict([(ext, url)])
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41 if alt_ext and alt_url:
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42 media[alt_ext] = alt_url
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43
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44 # prefer mp4 to mp3
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45 if alt_ext is None:
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bgneal@403
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46 supplied = [ext]
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bgneal@403
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47 elif ext == "m4a":
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bgneal@403
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48 supplied = (ext, alt_ext)
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bgneal@403
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49 else:
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bgneal@403
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50 supplied = (alt_ext, ext)
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bgneal@402
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51
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bgneal@403
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52 supplied = ", ".join(supplied)
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bgneal@402
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53
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bgneal@403
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54 return json.dumps(media), supplied
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bgneal@143
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55
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bgneal@143
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56
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gremmie@1
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57 def index(request):
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bgneal@403
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58 try:
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59 channel = Channel.objects.get(pk=1)
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bgneal@403
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60 except Channel.DoesNotExist:
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bgneal@403
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61 channel = None
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gremmie@1
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62
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bgneal@1032
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63 return render(request, 'podcast/index.html', {
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bgneal@403
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64 'channel': channel,
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bgneal@1032
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65 })
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gremmie@1
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66
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gremmie@1
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67
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gremmie@1
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68 def detail(request, id):
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bgneal@403
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69 podcast = get_object_or_404(Item.objects.select_related(), pk = id)
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bgneal@143
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70
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71 ext = get_ext_from_url(podcast.enclosure_url)
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72 alt_ext = None
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bgneal@403
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73 if podcast.alt_enclosure_url:
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bgneal@403
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74 alt_ext = get_ext_from_url(podcast.alt_enclosure_url)
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bgneal@143
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75
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bgneal@403
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76 jplayer_media, jplayer_supplied = jplayer_params(ext, podcast.enclosure_url,
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bgneal@403
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77 alt_ext, podcast.alt_enclosure_url)
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bgneal@402
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78
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bgneal@1032
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79 return render(request, 'podcast/detail.html', {
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bgneal@403
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80 'channel': podcast.channel,
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bgneal@403
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81 'podcast': podcast,
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bgneal@403
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82 'ext': ext,
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bgneal@403
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83 'alt_ext': alt_ext,
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bgneal@403
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84 'jplayer_media': jplayer_media,
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bgneal@403
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85 'jplayer_supplied': jplayer_supplied,
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bgneal@1032
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86 })
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bgneal@402
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87
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gremmie@1
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88
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gremmie@1
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89 def feed(request):
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bgneal@403
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90 try:
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bgneal@403
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91 channel = Channel.objects.get(pk=1)
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bgneal@403
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92 except Channel.DoesNotExist:
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bgneal@403
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93 channel = None
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bgneal@403
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94
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bgneal@403
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95 if channel:
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bgneal@403
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96 channel.items = Item.objects.filter(channel=channel)
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bgneal@403
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97
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bgneal@1032
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98 return render(request, 'podcast/feed.xml', {
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bgneal@403
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99 'channel': channel,
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bgneal@1032
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100 })
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