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[wolnelektury.git] / apps / catalogue / models / bookmedia.py

diff --git a/apps/catalogue/models/bookmedia.py b/apps/catalogue/models/bookmedia.py
index 6291329..1ef3fd7 100644 (file)
--- a/apps/catalogue/models/bookmedia.py
+++ b/apps/catalogue/models/bookmedia.py
@@ -2,32 +2,35 @@
 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
+from collections import OrderedDict
 import json
 from collections import namedtuple
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
-from django.utils.datastructures import SortedDict
 import jsonfield
 from fnpdjango.utils.text.slughifi import slughifi
 from catalogue.fields import OverwritingFileField
 
 
+def _file_upload_to(i, _n):
+    return 'book/%(ext)s/%(name)s.%(ext)s' % {
+            'ext': i.ext(), 'name': slughifi(i.name)}
+
 class BookMedia(models.Model):
     """Represents media attached to a book."""
     FileFormat = namedtuple("FileFormat", "name ext")
-    formats = SortedDict([
+    formats = OrderedDict([
         ('mp3', FileFormat(name='MP3', ext='mp3')),
         ('ogg', FileFormat(name='Ogg Vorbis', ext='ogg')),
         ('daisy', FileFormat(name='DAISY', ext='daisy.zip')),
     ])
-    format_choices = [(k, _('%s file') % t.name)
+    format_choices = [(k, _('%s file' % t.name))
             for k, t in formats.items()]
 
     type = models.CharField(_('type'), db_index=True, choices=format_choices, max_length=20)
     name = models.CharField(_('name'), max_length=512)
     file = OverwritingFileField(_('file'), max_length=600,
-        upload_to=lambda i, _n: 'book/%(ext)s/%(name)s.%(ext)s' % {
-                    'ext': i.ext(), 'name': slughifi(i.name)})
+        upload_to=_file_upload_to)
     uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False, db_index=True)
     extra_info = jsonfield.JSONField(_('extra information'), default={}, editable=False)
     book = models.ForeignKey('Book', related_name='media')
@@ -43,7 +46,6 @@ class BookMedia(models.Model):
         app_label = 'catalogue'
 
     def save(self, *args, **kwargs):
-        from fnpdjango.utils.text.slughifi import slughifi
         from catalogue.utils import ExistingFile, remove_zip
 
         try: