+ project_description = request.POST.get('project_description', '')
+ project_icon = request.POST.get('project_icon', '')
+
+ _rest, slug = request.POST['book'].rstrip('/').rsplit('/', 1)
+ book = Book.objects.get(slug=slug)
+
+ try:
+ assert source_sha1
+ bm = book.media.get(type=media_type, source_sha1=source_sha1)
+ except (AssertionError, BookMedia.DoesNotExist):
+ bm = BookMedia(book=book, type=media_type)
+ bm.name = name
+ bm.part_name = part_name
+ bm.index = index
+ bm.project_description = project_description
+ bm.project_icon = project_icon
+ bm.file.save(None, request.data['file'], save=False)
+ bm.save(parts_count=parts_count)
+
+ return Response({}, status=status.HTTP_201_CREATED)
+
+
+@vary_on_auth # Because of 'liked'.