Preliminary math and tables support.

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

diff --git a/apps/catalogue/models/bookmedia.py b/apps/catalogue/models/bookmedia.py
index 024f713..1ef3fd7 100644 (file)
--- a/apps/catalogue/models/bookmedia.py
+++ b/apps/catalogue/models/bookmedia.py
@@ -2,31 +2,37 @@
 # 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
-from catalogue.utils import book_upload_path
 
 
+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'), choices=format_choices, max_length="100")
-    name        = models.CharField(_('name'), max_length="100")
-    file        = OverwritingFileField(_('file'), upload_to=book_upload_path())
-    uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False)
-    extra_info  = jsonfield.JSONField(_('extra information'), default='{}', editable=False)
+    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=_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')
     source_sha1 = models.CharField(null=True, blank=True, max_length=40, editable=False)
 
@@ -40,7 +46,6 @@ class BookMedia(models.Model):
         app_label = 'catalogue'
 
     def save(self, *args, **kwargs):
-        from slughifi import slughifi
         from catalogue.utils import ExistingFile, remove_zip
 
         try:
@@ -60,6 +65,9 @@ class BookMedia(models.Model):
         remove_zip("%s_%s" % (self.book.slug, self.type))
 
         extra_info = self.extra_info
+        if isinstance(extra_info, basestring):
+            # Walkaround for weird jsonfield 'no-decode' optimization.
+            extra_info = json.loads(extra_info)
         extra_info.update(self.read_meta())
         self.extra_info = extra_info
         self.source_sha1 = self.read_source_sha1(self.file.path, self.type)
@@ -78,10 +86,10 @@ class BookMedia(models.Model):
                 audio = id3.ID3(self.file.path)
                 artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
                 director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
-                project = ", ".join([t.data for t in audio.getall('PRIV') 
-                        if t.owner=='wolnelektury.pl?project'])
-                funded_by = ", ".join([t.data for t in audio.getall('PRIV') 
-                        if t.owner=='wolnelektury.pl?funded_by'])
+                project = ", ".join([t.data for t in audio.getall('PRIV')
+                        if t.owner == 'wolnelektury.pl?project'])
+                funded_by = ", ".join([t.data for t in audio.getall('PRIV')
+                        if t.owner == 'wolnelektury.pl?funded_by'])
             except:
                 pass
         elif self.type == 'ogg':
@@ -98,6 +106,9 @@ class BookMedia(models.Model):
         return {'artist_name': artist_name, 'director_name': director_name,
                 'project': project, 'funded_by': funded_by}
 
+    def ext(self):
+        return self.formats[self.type].ext
+
     @staticmethod
     def read_source_sha1(filepath, filetype):
         """
@@ -109,14 +120,14 @@ class BookMedia(models.Model):
         if filetype == 'mp3':
             try:
                 audio = id3.ID3(filepath)
-                return [t.data for t in audio.getall('PRIV') 
-                        if t.owner=='wolnelektury.pl?flac_sha1'][0]
+                return [t.data for t in audio.getall('PRIV')
+                        if t.owner == 'wolnelektury.pl?flac_sha1'][0]
             except:
                 return None
         elif filetype == 'ogg':
             try:
                 audio = mutagen.File(filepath)
-                return audio.get('flac_sha1', [None])[0] 
+                return audio.get('flac_sha1', [None])[0]
             except:
                 return None
         else: