Display audiobook project and sponsors info from metadata,
[wolnelektury.git] / apps / catalogue / management / commands / savemedia.py
1 # -*- coding: utf-8 -*-
2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
4 #
5 import os.path
6
7 from django.core.management.base import BaseCommand
8 from django.core.files import File
9
10 from catalogue.models import Book, BookMedia
11 from catalogue.utils import ExistingFile
12
13
14 class Command(BaseCommand):
15     help = "Saves uploaded media with a given book and a given name. If media has a source SHA1 info - matching media is replaced."
16     args = 'path slug name'
17
18     def handle(self, *args, **options):
19         from django.db import transaction
20
21         path, slug, name = args
22
23         # Start transaction management.
24         transaction.commit_unless_managed()
25         transaction.enter_transaction_management()
26         transaction.managed(True)
27
28         book = Book.objects.get(slug=slug)
29
30         root, ext = os.path.splitext(path)
31         ext = ext.lower()
32         if ext:
33             ext = ext[1:]
34             if ext == 'zip':
35                 ext = 'daisy'
36
37         source_sha1 = BookMedia.read_source_sha1(path, ext)
38         print "Source file SHA1:", source_sha1
39         try:
40             assert source_sha1
41             bm = book.media.get(type=ext, source_sha1=source_sha1)
42             print "Replacing media: %s (%s)" % (bm.name.encode('utf-8'), ext)
43         except (AssertionError, BookMedia.DoesNotExist):
44             bm = BookMedia(book=book, type=ext)
45             print "Creating new media"
46         bm.name = name
47         bm.file.save(None, ExistingFile(path))
48         bm.save()
49         transaction.commit()
50         transaction.leave_transaction_management()