mygpo/web/utils.py

   1 from mygpo.api.models import Podcast
   2 from babel import Locale, UnknownLocaleError
   3 import re
   4
   5 def get_accepted_lang(request):
   6     return list(set([s[:2] for s in request.META.get('HTTP_ACCEPT_LANGUAGE', '').split(',')]))
   7
   8 def get_podcast_languages():
   9     """
  10     Returns all 2-letter language codes that are used by podcasts.
  11
  12     It filters obviously invalid strings, but does not check if any
  13     of these codes is contained in ISO 639.
  14     """
  15
  16     r = '^[a-zA-Z]{2}[-_]?.*$'
  17
  18     langs = [x['language'] for x in Podcast.objects.values('language').distinct()]
  19     sane_lang = list(set([l[:2] for l in langs if l and re.match(r, l)]))
  20
  21     sane_lang.sort()
  22
  23     return sane_lang
  24
  25 def get_language_names(lang):
  26     """
  27     Takes a list of language codes and returns a list of tuples
  28     with (code, name)
  29     """
  30     res = {}
  31     for l in lang:
  32         try:
  33             locale = Locale(l)
  34         except UnknownLocaleError:
  35             continue
  36
  37         if locale.display_name:
  38             res[l] = locale.display_name
  39
  40     return res
  41
  42
  43 class UpdatedException(Exception):
  44     """Base exception with additional payload"""
  45     def __init__(self, data):
  46         Exception.__init__(self)
  47         self.data = data
  48