+ def has_mp3_file(self):
+ return bool(self.has_media("mp3"))
+ has_mp3_file.short_description = 'MP3'
+ has_mp3_file.boolean = True
+
+ def has_ogg_file(self):
+ return bool(self.has_media("ogg"))
+ has_ogg_file.short_description = 'OGG'
+ has_ogg_file.boolean = True
+
+ def has_daisy_file(self):
+ return bool(self.has_media("daisy"))
+ has_daisy_file.short_description = 'DAISY'
+ has_daisy_file.boolean = True
+
+ def build_pdf(self, customizations=None, file_name=None):
+ """ (Re)builds the pdf file.
+ customizations - customizations which are passed to LaTeX class file.
+ file_name - save the pdf file under a different name and DO NOT save it in db.
+ """
+ from tempfile import NamedTemporaryFile
+ from os import unlink
+ from django.core.files import File
+ from librarian import pdf
+ from catalogue.utils import ORMDocProvider, remove_zip
+
+ try:
+ pdf_file = NamedTemporaryFile(delete=False)
+ pdf.transform(ORMDocProvider(self),
+ file_path=str(self.xml_file.path),
+ output_file=pdf_file,
+ customizations=customizations
+ )
+
+ if file_name is None:
+ # we'd like to be sure not to overwrite changes happening while
+ # (timely) pdf generation is taking place (async celery scenario)
+ current_self = Book.objects.get(id=self.id)
+ current_self.pdf_file.save('%s.pdf' % self.slug, File(open(pdf_file.name)))
+ self.pdf_file = current_self.pdf_file
+ else:
+ print "safing %s" % file_name
+ print "to: %s" % DefaultStorage().path(file_name)
+ DefaultStorage().save(file_name, File(open(pdf_file.name)))
+ finally:
+ unlink(pdf_file.name)
+
+ # remove cached downloadables
+ remove_zip(settings.ALL_PDF_ZIP)
+ for customized_pdf in get_existing_customized_pdf(self):
+ unlink(customized_pdf)
+
+ def build_mobi(self):
+ """ (Re)builds the MOBI file.
+
+ """
+ from tempfile import NamedTemporaryFile
+ from os import unlink
+ from django.core.files import File
+ from librarian import mobi
+ from catalogue.utils import ORMDocProvider, remove_zip
+
+ try:
+ mobi_file = NamedTemporaryFile(suffix='.mobi', delete=False)
+ mobi.transform(ORMDocProvider(self), verbose=1,
+ file_path=str(self.xml_file.path),
+ output_file=mobi_file.name,
+ )
+
+ self.mobi_file.save('%s.mobi' % self.slug, File(open(mobi_file.name)))
+ finally:
+ unlink(mobi_file.name)
+
+ # remove zip with all mobi files
+ remove_zip(settings.ALL_MOBI_ZIP)
+
+ def build_epub(self, remove_descendants=True):
+ """ (Re)builds the epub file.
+ If book has a parent, does nothing.
+ Unless remove_descendants is False, descendants' epubs are removed.
+ """
+ from StringIO import StringIO
+ from hashlib import sha1
+ from django.core.files.base import ContentFile
+ from librarian import epub, NoDublinCore
+ from catalogue.utils import ORMDocProvider, remove_zip
+
+ if self.parent:
+ # don't need an epub
+ return
+
+ epub_file = StringIO()
+ try:
+ epub.transform(ORMDocProvider(self), self.slug, output_file=epub_file)
+ self.epub_file.save('%s.epub' % self.slug, ContentFile(epub_file.getvalue()))
+ FileRecord(slug=self.slug, type='epub', sha1=sha1(epub_file.getvalue()).hexdigest()).save()
+ except NoDublinCore:
+ pass
+
+ book_descendants = list(self.children.all())
+ while len(book_descendants) > 0:
+ child_book = book_descendants.pop(0)
+ if remove_descendants and child_book.has_epub_file():
+ child_book.epub_file.delete()
+ # save anyway, to refresh short_html
+ child_book.save()
+ book_descendants += list(child_book.children.all())
+
+ # remove zip package with all epub files
+ remove_zip(settings.ALL_EPUB_ZIP)
+
+ def build_txt(self):
+ from StringIO import StringIO
+ from django.core.files.base import ContentFile
+ from librarian import text
+
+ out = StringIO()
+ text.transform(open(self.xml_file.path), out)
+ self.txt_file.save('%s.txt' % self.slug, ContentFile(out.getvalue()))
+
+
+ def build_html(self):
fnp / wolnelektury.git / blobdiff