from django.db import models
from django.db.models import permalink, Q
+import django.dispatch
from django.core.cache import cache
from django.utils.translation import ugettext_lazy as _
from django.contrib.auth.models import User
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, ORMDocProvider, create_zip, 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')),
('daisy', _('DAISY file')),
)
+# 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__()
if slughifi(self.name) != slughifi(old.name):
self.file.save(None, ExistingFile(self.file.path), save=False, leave=True)
+ # remove the zip package for book with modified media
+ remove_zip(self.book.slug)
+
super(BookMedia, self).save(*args, **kwargs)
extra_info = self.get_extra_info_value()
extra_info.update(self.read_meta())
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)
gazeta_link = models.CharField(blank=True, max_length=240)
wiki_link = models.CharField(blank=True, max_length=240)
# files generated during publication
- 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)
+ file_types = ['epub', 'html', 'mobi', 'pdf', 'txt', 'xml']
+
parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
objects = models.Manager()
tagged = managers.ModelTaggedItemManager(Tag)
tags = managers.TagDescriptor(Tag)
+ html_built = django.dispatch.Signal()
+
class AlreadyExists(Exception):
pass
def save(self, force_insert=False, force_update=False, reset_short_html=True, **kwargs):
self.sort_key = sortify(self.title)
+ ret = super(Book, self).save(force_insert, force_update)
+
if reset_short_html:
self.reset_short_html()
- return super(Book, self).save(force_insert, force_update)
+ return ret
@permalink
def get_absolute_url(self):
return book_tag
def has_media(self, type):
- if type == 'xml':
- if self.xml_file:
- return True
- else:
- return False
- elif type == 'html':
- if self.html_file:
- return True
- else:
- return False
- elif type == 'txt':
- if self.txt_file:
- return True
- else:
- return False
- elif type == 'pdf':
- if self.pdf_file:
- return True
- else:
- return False
- elif type == 'epub':
- if self.epub_file:
- return True
- else:
- return False
+ if type in Book.file_types:
+ return bool(getattr(self, "%s_file" % type))
else:
- if self.media.filter(type=type).exists():
- return True
- else:
- return False
+ return self.media.filter(type=type).exists()
def get_media(self, type):
if self.has_media(type):
- if type == "xml":
- return self.xml_file
- elif type == "html":
- return self.html_file
- elif type == "epub":
- return self.epub_file
- elif type == "txt":
- return self.txt_file
- elif type == "pdf":
- return self.pdf_file
+ if type in Book.file_types:
+ return getattr(self, "%s_file" % type)
else:
return self.media.filter(type=type)
else:
tags = [mark_safe(u'<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name)) for tag in tags]
formats = []
- # files generated during publication
+ # files generated during publication
if self.has_media("html"):
formats.append(u'<a href="%s">%s</a>' % (reverse('book_text', kwargs={'slug': self.slug}), _('Read online')))
if self.has_media("pdf"):
formats.append(u'<a href="%s">PDF</a>' % self.get_media('pdf').url)
+ if self.has_media("mobi"):
+ formats.append(u'<a href="%s">MOBI</a>' % self.get_media('mobi').url)
if self.root_ancestor.has_media("epub"):
formats.append(u'<a href="%s">EPUB</a>' % self.root_ancestor.get_media('epub').url)
if self.has_media("txt"):
{'book': self, 'tags': tags, 'formats': formats}))
if self.id:
- cache.set(cache_key, short_html)
+ cache.set(cache_key, short_html, CACHE_FOREVER)
return mark_safe(short_html)
@property
has_description.boolean = True
# ugly ugly ugly
- def has_pdf_file(self):
- return bool(self.pdf_file)
- has_pdf_file.short_description = 'PDF'
- has_pdf_file.boolean = True
-
- def has_epub_file(self):
- return bool(self.epub_file)
- has_epub_file.short_description = 'EPUB'
- has_epub_file.boolean = True
-
- def has_txt_file(self):
- return bool(self.txt_file)
- has_txt_file.short_description = 'HTML'
- has_txt_file.boolean = True
-
- def has_html_file(self):
- return bool(self.html_file)
- has_html_file.short_description = 'HTML'
- has_html_file.boolean = True
-
def has_odt_file(self):
return bool(self.has_media("odt"))
has_odt_file.short_description = 'ODT'
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
+
+ # remove zip with all pdf files
+ remove_zip(settings.ALL_PDF_ZIP)
+
+ try:
+ pdf_file = NamedTemporaryFile(delete=False)
+ pdf.transform(ORMDocProvider(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_mobi(self):
+ """ (Re)builds the MOBI file.
+
+ """
+ from librarian import mobi
+ from tempfile import NamedTemporaryFile
+ import os
+
+ # remove zip with all pdf files
+ remove_zip(settings.ALL_MOBI_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)
+
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
return
+ # remove zip package with all epub files
+ remove_zip(settings.ALL_EPUB_ZIP)
+
epub_file = StringIO()
try:
- epub.transform(BookImportDocProvider(self), self.slug, output_file=epub_file)
+ 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:
new_fragment.save()
new_fragment.tags = set(meta_tags + themes + [book_tag] + ancestor_tags)
self.save()
+ self.html_built.send(sender=self)
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 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 result.wait()
+
+ @staticmethod
+ def zip_mobi():
+ books = Book.objects.all()
+
+ paths = filter(lambda x: x is not None,
+ map(lambda b: b.mobi_file and b.mobi_file.path or None, books))
+ result = create_zip_task.delay(paths, settings.ALL_MOBI_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 result.wait()
@classmethod
def from_xml_file(cls, xml_file, **kwargs):
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, build_mobi=True):
import re
# check for parts before we do anything
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()
+
+ if not settings.NO_BUILD_MOBI and build_mobi:
+ book.build_mobi()
+
book_descendants = list(book.children.all())
# add l-tag to descendants and their fragments
# delete unnecessary EPUB files
fragment.tags = set(list(fragment.tags) + [book_tag])
book_descendants += list(child_book.children.all())
+ book.save()
+
# refresh cache
book.reset_tag_counter()
book.reset_theme_counter()
- book.save()
return book
def reset_tag_counter(self):
tags[tag.pk] = 1
if self.id:
- cache.set(cache_key, tags)
+ cache.set(cache_key, tags, CACHE_FOREVER)
return tags
def reset_theme_counter(self):
tags[tag.pk] = tags.get(tag.pk, 0) + 1
if self.id:
- cache.set(cache_key, tags)
+ cache.set(cache_key, tags, CACHE_FOREVER)
return tags
def pretty_title(self, html_links=False):
return objects
+def _has_factory(ftype):
+ has = lambda self: bool(getattr(self, "%s_file" % ftype))
+ has.short_description = t.upper()
+ has.boolean = True
+ has.__name__ = "has_%s_file" % ftype
+ return has
+
+
+# add the file fields
+for t in Book.file_types:
+ field_name = "%s_file" % t
+ models.FileField(_("%s file" % t.upper()),
+ upload_to=book_upload_path(t),
+ blank=True).contribute_to_class(Book, field_name)
+
+ setattr(Book, "has_%s_file" % t, _has_factory(t))
+
+
class Fragment(models.Model):
text = models.TextField()
short_text = models.TextField(editable=False)
short_html = unicode(render_to_string('catalogue/fragment_short.html',
{'fragment': self}))
if self.id:
- cache.set(cache_key, short_html)
+ cache.set(cache_key, short_html, CACHE_FOREVER)
return mark_safe(short_html)
fnp / wolnelektury.git / blobdiff