Fixes #4001: TOC contains parent books, and add links to previous and next book.

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

diff --git a/src/catalogue/models/bookmedia.py b/src/catalogue/models/bookmedia.py
index 407c419..de493d7 100644 (file)
--- a/src/catalogue/models/bookmedia.py
+++ b/src/catalogue/models/bookmedia.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
@@ -7,7 +6,6 @@ import json
 from collections import namedtuple
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
-import jsonfield
 from slugify import slugify
 from mutagen import MutagenError
 
@@ -34,11 +32,11 @@ class BookMedia(models.Model):
     index = models.IntegerField(_('index'), default=0)
     file = models.FileField(_('file'), max_length=600, upload_to=_file_upload_to, storage=OverwriteStorage())
     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')
+    extra_info = models.TextField(_('extra information'), default='{}', editable=False)
+    book = models.ForeignKey('Book', models.CASCADE, related_name='media')
     source_sha1 = models.CharField(null=True, blank=True, max_length=40, editable=False)
 
-    def __unicode__(self):
+    def __str__(self):
         return "%s (%s)" % (self.name, self.file.name.split("/")[-1])
 
     class Meta:
@@ -47,6 +45,9 @@ class BookMedia(models.Model):
         verbose_name_plural = _('book media')
         app_label = 'catalogue'
 
+    def get_extra_info_json(self):
+        return json.loads(self.extra_info or '{}')
+
     def save(self, parts_count=None, *args, **kwargs):
         from catalogue.utils import ExistingFile, remove_zip
 
@@ -76,12 +77,9 @@ class BookMedia(models.Model):
             remove_zip("%s_%s" % (old.book.slug, old.type))
         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 = self.get_extra_info_json()
         extra_info.update(self.read_meta())
-        self.extra_info = extra_info
+        self.extra_info = json.dumps(extra_info)
         self.source_sha1 = self.read_source_sha1(self.file.path, self.type)
         return super(BookMedia, self).save(*args, **kwargs)
 
@@ -98,11 +96,12 @@ 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'))
+                license = ', '.join(tag.url for tag in audio.getall('WCOP'))
                 project = ", ".join([
-                    t.data for t in audio.getall('PRIV')
+                    t.data.decode('utf-8') for t in audio.getall('PRIV')
                     if t.owner == 'wolnelektury.pl?project'])
                 funded_by = ", ".join([
-                    t.data for t in audio.getall('PRIV')
+                    t.data.decode('utf-8') for t in audio.getall('PRIV')
                     if t.owner == 'wolnelektury.pl?funded_by'])
             except MutagenError:
                 pass
@@ -111,6 +110,7 @@ class BookMedia(models.Model):
                 audio = mutagen.File(self.file.path)
                 artist_name = ', '.join(audio.get('artist', []))
                 director_name = ', '.join(audio.get('conductor', []))
+                license = ', '.join(audio.get('license', []))
                 project = ", ".join(audio.get('project', []))
                 funded_by = ", ".join(audio.get('funded_by', []))
             except (MutagenError, AttributeError):
@@ -118,7 +118,7 @@ class BookMedia(models.Model):
         else:
             return {}
         return {'artist_name': artist_name, 'director_name': director_name,
-                'project': project, 'funded_by': funded_by}
+                'project': project, 'funded_by': funded_by, 'license': license}
 
     def ext(self):
         return self.formats[self.type].ext
@@ -134,7 +134,7 @@ class BookMedia(models.Model):
         if filetype == 'mp3':
             try:
                 audio = id3.ID3(filepath)
-                return [t.data for t in audio.getall('PRIV')
+                return [t.data.decode('utf-8') for t in audio.getall('PRIV')
                         if t.owner == 'wolnelektury.pl?flac_sha1'][0]
             except (MutagenError, IndexError):
                 return None
@@ -149,8 +149,11 @@ class BookMedia(models.Model):
 
     @property
     def director(self):
-        return self.extra_info.get('director_name', None)
+        return self.get_extra_info_json().get('director_name', None)
 
     @property
     def artist(self):
-        return self.extra_info.get('artist_name', None)
+        return self.get_extra_info_json().get('artist_name', None)
+
+    def file_url(self):
+        return self.file.url