X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/5e983f642ea537225bf3a20e97fca281c8fdc915..0c613164e94ea79fce559b2b1632691986a84f25:/apps/catalogue/models.py diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py index ead5ba040..a9445a24f 100644 --- a/apps/catalogue/models.py +++ b/apps/catalogue/models.py @@ -22,14 +22,14 @@ from django.conf import settings from newtagging.models import TagBase, tags_updated from newtagging import managers from catalogue.fields import JSONField, OverwritingFileField -from catalogue.utils import ExistingFile +from catalogue.utils import ExistingFile, BookImportDocProvider, create_zip_task, remove_zip from librarian import dcparser, html, epub, NoDublinCore import mutagen from mutagen import id3 from slughifi import slughifi from sortify import sortify - +from os import unlink TAG_CATEGORIES = ( ('author', _('author')), @@ -51,6 +51,7 @@ MEDIA_FORMATS = ( # not quite, but Django wants you to set a timeout CACHE_FOREVER = 2419200 # 28 days + class TagSubcategoryManager(models.Manager): def __init__(self, subcategory): super(TagSubcategoryManager, self).__init__() @@ -282,7 +283,7 @@ class BookMedia(models.Model): class Book(models.Model): title = models.CharField(_('title'), max_length=120) - sort_key = models.CharField(_('sort_key'), max_length=120, db_index=True, editable=False) + sort_key = models.CharField(_('sort key'), max_length=120, db_index=True, editable=False) slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True) description = models.TextField(_('description'), blank=True) created_at = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True) @@ -295,9 +296,9 @@ class Book(models.Model): xml_file = models.FileField(_('XML file'), upload_to=book_upload_path('xml'), blank=True) html_file = models.FileField(_('HTML file'), upload_to=book_upload_path('html'), blank=True) 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) - + 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) + parent = models.ForeignKey('self', blank=True, null=True, related_name='children') objects = models.Manager() tagged = managers.ModelTaggedItemManager(Tag) @@ -503,34 +504,40 @@ class Book(models.Model): 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 - + has_daisy_file.boolean = True + + def build_pdf(self): + """ (Re)builds the pdf file. + + """ + from librarian import pdf + from tempfile import NamedTemporaryFile + import os + + path, fname = os.path.realpath(self.xml_file.path).rsplit('/', 1) + try: + pdf_file = NamedTemporaryFile(delete=False) + pdf.transform(BookImportDocProvider(self), + file_path=str(self.xml_file.path), + output_file=pdf_file, + ) + + self.pdf_file.save('%s.pdf' % self.slug, File(open(pdf_file.name))) + finally: + unlink(pdf_file.name) + 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 DocProvider - - class BookImportDocProvider(DocProvider): - """ used for joined EPUBs """ - - def __init__(self, book): - self.book = book - - def by_slug(self, slug): - if slug == self.book.slug: - return self.book.xml_file - else: - return Book.objects.get(slug=slug).xml_file if self.parent: # don't need an epub @@ -618,6 +625,35 @@ class Book(models.Model): return True return False + @staticmethod + def zip_epub(): + books = Book.objects.all() + + paths = filter(lambda x: x is not None, + map(lambda b: b.epub_file and b.epub_file.path or None, books)) + result = create_zip_task.delay(paths, settings.ALL_EPUB_ZIP) + return settings.MEDIA_URL + result.wait() + + @staticmethod + def zip_pdf(): + books = Book.objects.all() + + paths = filter(lambda x: x is not None, + map(lambda b: b.pdf_file and b.pdf_file.path or None, books)) + result = create_zip_task.delay(paths, settings.ALL_PDF_ZIP) + return settings.MEDIA_URL + result.wait() + + def zip_audiobooks(self): + bm = BookMedia.objects.filter(book=self) + paths = map(lambda bm: bm.file.path, bm) + result = create_zip_task.delay(paths, self.slug) + + return settings.MEDIA_URL + result.wait() + + def clean_zip_files(self): + remove_zip(self.slug) + remove_zip(settings.ALL_EPUB_ZIP) + remove_zip(settings.ALL_PDF_ZIP) @classmethod def from_xml_file(cls, xml_file, **kwargs): @@ -633,7 +669,7 @@ class Book(models.Model): xml_file.close() @classmethod - def from_text_and_meta(cls, raw_file, book_info, overwrite=False, build_epub=True, build_txt=True): + def from_text_and_meta(cls, raw_file, book_info, overwrite=False, build_epub=True, build_txt=True, build_pdf=True): import re # check for parts before we do anything @@ -706,6 +742,9 @@ class Book(models.Model): if not settings.NO_BUILD_EPUB and build_epub: book.root_ancestor.build_epub() + if not settings.NO_BUILD_PDF and build_pdf: + book.root_ancestor.build_pdf() + book_descendants = list(book.children.all()) # add l-tag to descendants and their fragments # delete unnecessary EPUB files