from catalogue.fields import JSONField
from librarian import dcparser, html, epub, NoDublinCore
+import mutagen
from mutagen import id3
from slughifi import slughifi
name = models.CharField(_('name'), max_length="100")
file = models.FileField(_('file'), upload_to=book_upload_path())
uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False)
- extra_info = JSONField(_('extra information'), default='{}')
-
- def book_count(self):
- return self.book_set.count()
- book_count.short_description = _('book count')
-
- def books(self):
- return mark_safe('<br/>'.join("<a href='%s'>%s</a>" % (reverse('admin:catalogue_book_change', args=[b.id]), b.title) for b in self.book_set.all()))
- books.short_description = _('books')
+ extra_info = 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)
def __unicode__(self):
return "%s (%s)" % (self.name, self.file.name.split("/")[-1])
verbose_name = _('book media')
verbose_name_plural = _('book media')
- def save(self, force_insert=False, force_update=False, **kwargs):
- media = super(BookMedia, self).save(force_insert, force_update, **kwargs)
+ def save(self, *args, **kwargs):
+ super(BookMedia, self).save(*args, **kwargs)
+ extra_info = self.get_extra_info_value()
+ extra_info.update(self.read_meta())
+ self.set_extra_info_value(extra_info)
+ self.source_sha1 = self.read_source_sha1(self.file.path, self.type)
+ print self.extra_info, self.source_sha1
+ return super(BookMedia, self).save(*args, **kwargs)
+
+ def read_meta(self):
+ """
+ Reads some metadata from the audiobook.
+ """
+
+ artist_name = director_name = ''
if self.type == 'mp3':
- file = self.file
- extra_info = self.get_extra_info_value()
- extra_info.update(self.get_mp3_info())
- self.set_extra_info_value(extra_info)
- media = super(BookMedia, self).save(force_insert, force_update, **kwargs)
- return media
-
- def get_mp3_info(self):
- """Retrieves artist and director names from audio ID3 tags."""
- try:
- 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'))
- except:
- artist_name = director_name = ''
+ try:
+ 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'))
+ except:
+ pass
+ elif self.type == 'ogg':
+ try:
+ audio = mutagen.File(self.file.path)
+ artist_name = ', '.join(audio.get('artist', []))
+ director_name = ', '.join(audio.get('conductor', []))
+ except:
+ pass
+ else:
+ return {}
return {'artist_name': artist_name, 'director_name': director_name}
+ @staticmethod
+ def read_source_sha1(filepath, filetype):
+ """
+ Reads source file SHA1 from audiobok metadata.
+ """
+
+ if filetype == 'mp3':
+ try:
+ audio = id3.ID3(filepath)
+ return [t.data for t in audio.getall('PRIV')
+ if t.owner=='http://wolnelektury.pl?flac_sha1'][0]
+ except:
+ return None
+ elif filetype == 'ogg':
+ try:
+ audio = mutagen.File(filepath)
+ return audio.get('flac_sha1', [None])[0]
+ except:
+ return None
+ else:
+ return None
+
class Book(models.Model):
title = models.CharField(_('title'), max_length=120)
pdf_file = models.FileField(_('PDF file'), upload_to=book_upload_path('pdf'), blank=True)
epub_file = models.FileField(_('EPUB file'), upload_to=book_upload_path('epub'), blank=True)
txt_file = models.FileField(_('TXT file'), upload_to=book_upload_path('txt'), blank=True)
- # other files
- medias = models.ManyToManyField(BookMedia, blank=True)
-
+
parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
objects = models.Manager()
tagged = managers.ModelTaggedItemManager(Tag)
else:
return False
else:
- if self.medias.filter(book=self, type=type).count() > 0:
+ if self.media.filter(type=type).exists():
return True
else:
return False
elif type == "pdf":
return self.pdf_file
else:
- return self.medias.filter(book=self, type=type)
+ return self.media.filter(type=type)
else:
return None
if self.has_media("txt"):
formats.append(u'<a href="%s">TXT</a>' % self.get_media('txt').url)
# other files
- for m in self.medias.order_by('type'):
+ for m in self.media.order_by('type'):
formats.append(u'<a href="%s">%s</a>' % (m.file.url, m.type.upper()))
formats = [mark_safe(format) for format in formats]
tags_updated.connect(_tags_updated_handler)
-def _m2m_changed_handler(sender, instance, action, reverse, pk_set, **kwargs):
- """ refresh all the short_html stuff on BookMedia delete """
- if sender == Book.medias.through and reverse and action == 'pre_clear':
- for book in instance.book_set.all():
- book.save()
-m2m_changed.connect(_m2m_changed_handler)
-
def _pre_delete_handler(sender, instance, **kwargs):
- """ explicitly clear m2m, so that Books can be refreshed """
+ """ refresh Book on BookMedia delete """
if sender == BookMedia:
- instance.book_set.clear()
+ instance.book.save()
pre_delete.connect(_pre_delete_handler)
def _post_save_handler(sender, instance, **kwargs):
""" refresh all the short_html stuff on BookMedia update """
if sender == BookMedia:
- for book in instance.book_set.all():
- book.save()
+ instance.book.save()
post_save.connect(_post_save_handler)
-
fnp / wolnelektury.git / blobdiff