# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
-from datetime import datetime
+from collections import namedtuple
from django.db import models
from django.db.models import permalink, Q
import django.dispatch
-from django.core.cache import cache
+from django.core.cache import get_cache
+from django.core.files.storage import DefaultStorage
from django.utils.translation import ugettext_lazy as _
from django.contrib.auth.models import User
-from django.core.files import File
from django.template.loader import render_to_string
+from django.utils.datastructures import SortedDict
from django.utils.safestring import mark_safe
from django.utils.translation import get_language
from django.core.urlresolvers import reverse
-from django.db.models.signals import post_save, m2m_changed, pre_delete
+from django.db.models.signals import post_save, m2m_changed, pre_delete, post_delete
+import jsonfield
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, 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
+from catalogue.utils import create_zip, split_tags, truncate_html_words
+from catalogue.tasks import touch_tag, index_book
+from shutil import copy
+from glob import glob
+import re
+from os import path
import search
+# Those are hard-coded here so that makemessages sees them.
TAG_CATEGORIES = (
('author', _('author')),
('epoch', _('epoch')),
('book', _('book')),
)
-MEDIA_FORMATS = (
- ('odt', _('ODT file')),
- ('mp3', _('MP3 file')),
- ('ogg', _('OGG file')),
- ('daisy', _('DAISY file')),
-)
-# not quite, but Django wants you to set a timeout
-CACHE_FOREVER = 2419200 # 28 days
+permanent_cache = get_cache('permanent')
class TagSubcategoryManager(models.Manager):
category = models.CharField(_('category'), max_length=50, blank=False, null=False,
db_index=True, choices=TAG_CATEGORIES)
description = models.TextField(_('description'), blank=True)
- main_page = models.BooleanField(_('main page'), default=False, db_index=True, help_text=_('Show tag on main page'))
user = models.ForeignKey(User, blank=True, null=True)
book_count = models.IntegerField(_('book count'), blank=True, null=True)
has_description.boolean = True
def get_count(self):
- """ returns global book count for book tags, fragment count for themes """
-
- if self.book_count is None:
- if self.category == 'book':
- # never used
- objects = Book.objects.none()
- elif self.category == 'theme':
- objects = Fragment.tagged.with_all((self,))
- else:
- objects = Book.tagged.with_all((self,)).order_by()
- if self.category != 'set':
- # eliminate descendants
- l_tags = Tag.objects.filter(slug__in=[book.book_tag_slug() for book in objects])
- descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags)]
- if descendants_keys:
- objects = objects.exclude(pk__in=descendants_keys)
- self.book_count = objects.count()
- self.save()
- return self.book_count
+ """Returns global book count for book tags, fragment count for themes."""
+
+ if self.category == 'book':
+ # never used
+ objects = Book.objects.none()
+ elif self.category == 'theme':
+ objects = Fragment.tagged.with_all((self,))
+ else:
+ objects = Book.tagged.with_all((self,)).order_by()
+ if self.category != 'set':
+ # eliminate descendants
+ l_tags = Tag.objects.filter(slug__in=[book.book_tag_slug() for book in objects])
+ descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags)]
+ if descendants_keys:
+ objects = objects.exclude(pk__in=descendants_keys)
+ return objects.count()
@staticmethod
def get_tag_list(tags):
def url_chunk(self):
return '/'.join((Tag.categories_dict[self.category], self.slug))
+ @staticmethod
+ def tags_from_info(info):
+ from slughifi import slughifi
+ from sortify import sortify
+ meta_tags = []
+ categories = (('kinds', 'kind'), ('genres', 'genre'), ('authors', 'author'), ('epochs', 'epoch'))
+ for field_name, category in categories:
+ try:
+ tag_names = getattr(info, field_name)
+ except:
+ try:
+ tag_names = [getattr(info, category)]
+ except:
+ # For instance, Pictures do not have 'genre' field.
+ continue
+ for tag_name in tag_names:
+ tag_sort_key = tag_name
+ if category == 'author':
+ tag_sort_key = tag_name.last_name
+ tag_name = tag_name.readable()
+ tag, created = Tag.objects.get_or_create(slug=slughifi(tag_name), category=category)
+ if created:
+ tag.name = tag_name
+ tag.sort_key = sortify(tag_sort_key.lower())
+ tag.save()
+ meta_tags.append(tag)
+ return meta_tags
+
+
+
+def get_dynamic_path(media, filename, ext=None, maxlen=100):
+ from slughifi import slughifi
+
+ # how to put related book's slug here?
+ if not ext:
+ # BookMedia case
+ ext = media.formats[media.type].ext
+ if media is None or not media.name:
+ name = slughifi(filename.split(".")[0])
+ else:
+ name = slughifi(media.name)
+ return 'book/%s/%s.%s' % (ext, name[:maxlen-len('book/%s/.%s' % (ext, ext))-4], ext)
+
# TODO: why is this hard-coded ?
def book_upload_path(ext=None, maxlen=100):
- def get_dynamic_path(media, filename, ext=ext):
- # how to put related book's slug here?
- if not ext:
- if media.type == 'daisy':
- ext = 'daisy.zip'
- else:
- ext = media.type
- if not media.name:
- name = slughifi(filename.split(".")[0])
- else:
- name = slughifi(media.name)
- return 'book/%s/%s.%s' % (ext, name[:maxlen-len('book/%s/.%s' % (ext, ext))-4], ext)
- return get_dynamic_path
+ return lambda *args: get_dynamic_path(*args, ext=ext, maxlen=maxlen)
+
+
+def get_customized_pdf_path(book, customizations):
+ """
+ Returns a MEDIA_ROOT relative path for a customized pdf. The name will contain a hash of customization options.
+ """
+ customizations.sort()
+ h = hash(tuple(customizations))
+
+ pdf_name = '%s-custom-%s' % (book.slug, h)
+ pdf_file = get_dynamic_path(None, pdf_name, ext='pdf')
+
+ return pdf_file
+
+
+def get_existing_customized_pdf(book):
+ """
+ Returns a list of paths to generated customized pdf of a book
+ """
+ pdf_glob = '%s-custom-' % (book.slug,)
+ pdf_glob = get_dynamic_path(None, pdf_glob, ext='pdf')
+ pdf_glob = re.sub(r"[.]([a-z0-9]+)$", "*.\\1", pdf_glob)
+ return glob(path.join(settings.MEDIA_ROOT, pdf_glob))
class BookMedia(models.Model):
- type = models.CharField(_('type'), choices=MEDIA_FORMATS, max_length="100")
+ FileFormat = namedtuple("FileFormat", "name ext")
+ formats = SortedDict([
+ ('mp3', FileFormat(name='MP3', ext='mp3')),
+ ('ogg', FileFormat(name='Ogg Vorbis', ext='ogg')),
+ ('daisy', FileFormat(name='DAISY', ext='daisy.zip')),
+ ])
+ format_choices = [(k, _('%s file') % t.name)
+ for k, t in formats.items()]
+
+ type = models.CharField(_('type'), choices=format_choices, max_length="100")
name = models.CharField(_('name'), max_length="100")
file = OverwritingFileField(_('file'), upload_to=book_upload_path())
uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False)
verbose_name_plural = _('book media')
def save(self, *args, **kwargs):
+ from slughifi import slughifi
+ from catalogue.utils import ExistingFile, remove_zip
+
try:
old = BookMedia.objects.get(pk=self.pk)
except BookMedia.DoesNotExist, e:
- pass
+ old = None
else:
# if name changed, change the file name, too
if slughifi(self.name) != slughifi(old.name):
super(BookMedia, self).save(*args, **kwargs)
# remove the zip package for book with modified media
- remove_zip(self.book.slug)
+ if old:
+ remove_zip("%s_%s" % (old.book.slug, old.type))
+ remove_zip("%s_%s" % (self.book.slug, self.type))
extra_info = self.get_extra_info_value()
extra_info.update(self.read_meta())
"""
Reads some metadata from the audiobook.
"""
+ import mutagen
+ from mutagen import id3
artist_name = director_name = project = funded_by = ''
if self.type == 'mp3':
"""
Reads source file SHA1 from audiobok metadata.
"""
+ import mutagen
+ from mutagen import id3
if filetype == 'mp3':
try:
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)
- slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
+ slug = models.SlugField(_('slug'), max_length=120, db_index=True,
+ unique=True)
+ common_slug = models.SlugField(_('slug'), max_length=120, db_index=True)
+ language = models.CharField(_('language code'), max_length=3, db_index=True,
+ default=settings.CATALOGUE_DEFAULT_LANGUAGE)
description = models.TextField(_('description'), blank=True)
created_at = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True)
changed_at = models.DateTimeField(_('creation date'), auto_now=True, db_index=True)
wiki_link = models.CharField(blank=True, max_length=240)
# files generated during publication
- file_types = ['epub', 'html', 'mobi', 'pdf', 'txt', 'xml']
-
+ cover = models.FileField(_('cover'), upload_to=book_upload_path('png'),
+ null=True, blank=True)
+ ebook_formats = ['pdf', 'epub', 'mobi', 'txt']
+ formats = ebook_formats + ['html', 'xml']
+
parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
+
+ _related_info = jsonfield.JSONField(blank=True, null=True, editable=False)
+
objects = models.Manager()
tagged = managers.ModelTaggedItemManager(Tag)
tags = managers.TagDescriptor(Tag)
html_built = django.dispatch.Signal()
+ published = django.dispatch.Signal()
class AlreadyExists(Exception):
pass
return self.title
def save(self, force_insert=False, force_update=False, reset_short_html=True, **kwargs):
+ from sortify import sortify
+
self.sort_key = sortify(self.title)
ret = super(Book, self).save(force_insert, force_update)
return book_tag
def has_media(self, type):
- if type in Book.file_types:
+ if type in Book.formats:
return bool(getattr(self, "%s_file" % type))
else:
return self.media.filter(type=type).exists()
def get_media(self, type):
if self.has_media(type):
- if type in Book.file_types:
+ if type in Book.formats:
return getattr(self, "%s_file" % type)
else:
return self.media.filter(type=type)
if self.id is None:
return
- cache_key = "Book.short_html/%d/%s"
- for lang, langname in settings.LANGUAGES:
- cache.delete(cache_key % (self.id, lang))
+ type(self).objects.filter(pk=self.pk).update(_related_info=None)
# Fragment.short_html relies on book's tags, so reset it here too
for fragm in self.fragments.all():
fragm.reset_short_html()
- def short_html(self):
- if self.id:
- cache_key = "Book.short_html/%d/%s" % (self.id, get_language())
- short_html = cache.get(cache_key)
- else:
- short_html = None
-
- if short_html is not None:
- return mark_safe(short_html)
- else:
- tags = self.tags.filter(~Q(category__in=('set', 'theme', 'book')))
- tags = [mark_safe(u'<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name)) for tag in tags]
-
- formats = []
- # 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"):
- formats.append(u'<a href="%s">TXT</a>' % self.get_media('txt').url)
- # other files
- for m in self.media.order_by('type'):
- formats.append(u'<a href="%s">%s</a>' % (m.file.url, m.type.upper()))
-
- formats = [mark_safe(format) for format in formats]
-
- short_html = unicode(render_to_string('catalogue/book_short.html',
- {'book': self, 'tags': tags, 'formats': formats}))
-
- if self.id:
- cache.set(cache_key, short_html, CACHE_FOREVER)
- return mark_safe(short_html)
-
- @property
- def root_ancestor(self):
- """ returns the oldest ancestor """
-
- if not hasattr(self, '_root_ancestor'):
- book = self
- while book.parent:
- book = book.parent
- self._root_ancestor = book
- return self._root_ancestor
-
-
def has_description(self):
return len(self.description) > 0
has_description.short_description = _('description')
has_description.boolean = True
# ugly ugly ugly
- def has_odt_file(self):
- return bool(self.has_media("odt"))
- has_odt_file.short_description = 'ODT'
- has_odt_file.boolean = True
-
def has_mp3_file(self):
return bool(self.has_media("mp3"))
has_mp3_file.short_description = 'MP3'
has_daisy_file.short_description = 'DAISY'
has_daisy_file.boolean = True
- def build_pdf(self):
- """ (Re)builds the pdf file.
+ def wldocument(self, parse_dublincore=True):
+ from catalogue.import_utils import ORMDocProvider
+ from librarian.parser import WLDocument
+
+ return WLDocument.from_file(self.xml_file.path,
+ provider=ORMDocProvider(self),
+ parse_dublincore=parse_dublincore)
+ def build_cover(self, book_info=None):
+ """(Re)builds the cover image."""
+ from StringIO import StringIO
+ from django.core.files.base import ContentFile
+ from librarian.cover import WLCover
+
+ if book_info is None:
+ book_info = self.wldocument().book_info
+
+ cover = WLCover(book_info).image()
+ imgstr = StringIO()
+ cover.save(imgstr, 'png')
+ self.cover.save(None, ContentFile(imgstr.getvalue()))
+
+ 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 librarian import pdf
- from tempfile import NamedTemporaryFile
- import os
+ from os import unlink
+ from django.core.files import File
+ from catalogue.utils import remove_zip
- try:
- pdf_file = NamedTemporaryFile(delete=False)
- pdf.transform(ORMDocProvider(self),
- file_path=str(self.xml_file.path),
- output_file=pdf_file,
- )
+ pdf = self.wldocument().as_pdf(customizations=customizations)
- self.pdf_file.save('%s.pdf' % self.slug, File(open(pdf_file.name)))
- finally:
- unlink(pdf_file.name)
+ 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.get_filename())))
+ self.pdf_file = current_self.pdf_file
- # remove zip with all pdf files
- remove_zip(settings.ALL_PDF_ZIP)
+ # remove cached downloadables
+ remove_zip(settings.ALL_PDF_ZIP)
+
+ for customized_pdf in get_existing_customized_pdf(self):
+ unlink(customized_pdf)
+ else:
+ print "saving %s" % file_name
+ print "to: %s" % DefaultStorage().path(file_name)
+ DefaultStorage().save(file_name, File(open(pdf.get_filename())))
def build_mobi(self):
""" (Re)builds the MOBI file.
"""
- from librarian import mobi
- from tempfile import NamedTemporaryFile
- import os
+ from django.core.files import File
+ from catalogue.utils import 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,
- )
+ mobi = self.wldocument().as_mobi()
- self.mobi_file.save('%s.mobi' % self.slug, File(open(mobi_file.name)))
- finally:
- unlink(mobi_file.name)
+ self.mobi_file.save('%s.mobi' % self.slug, File(open(mobi.get_filename())))
# 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
-
- if self.parent:
- # don't need an epub
- return
+ def build_epub(self):
+ """(Re)builds the epub file."""
+ from django.core.files import File
+ from catalogue.utils import remove_zip
- 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
+ epub = self.wldocument().as_epub()
- 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())
+ self.epub_file.save('%s.epub' % self.slug,
+ File(open(epub.get_filename())))
# 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()))
+ text = self.wldocument().as_text()
+ self.txt_file.save('%s.txt' % self.slug, ContentFile(text.get_string()))
def build_html(self):
- from tempfile import NamedTemporaryFile
- from markupstring import MarkupString
+ from django.core.files.base import ContentFile
+ from slughifi import slughifi
+ from librarian import html
meta_tags = list(self.tags.filter(
category__in=('author', 'epoch', 'genre', 'kind')))
book_tag = self.book_tag()
- html_file = NamedTemporaryFile()
- if html.transform(self.xml_file.path, html_file, parse_dublincore=False):
- self.html_file.save('%s.html' % self.slug, File(html_file))
+ html_output = self.wldocument(parse_dublincore=False).as_html()
+ if html_output:
+ self.html_file.save('%s.html' % self.slug,
+ ContentFile(html_output.get_string()))
# get ancestor l-tags for adding to new fragments
ancestor_tags = []
continue
text = fragment.to_string()
- short_text = ''
- if (len(MarkupString(text)) > 240):
- short_text = unicode(MarkupString(text)[:160])
+ short_text = truncate_html_words(text, 15)
+ if text == short_text:
+ short_text = ''
new_fragment = Fragment.objects.create(anchor=fragment.id, book=self,
text=text, short_text=short_text)
getattr(settings, "ALL_%s_ZIP" % format_.upper()))
return result.wait()
- def zip_audiobooks(self):
- bm = BookMedia.objects.filter(book=self, type='mp3')
+ def zip_audiobooks(self, format_):
+ bm = BookMedia.objects.filter(book=self, type=format_)
paths = map(lambda bm: (None, bm.file.path), bm)
- result = create_zip.delay(paths, self.slug)
+ result = create_zip.delay(paths, "%s_%s" % (self.slug, format_))
return result.wait()
- def search_index(self):
- with search.Index() as idx:
- idx.index_book(self)
+ def search_index(self, book_info=None, reuse_index=False, index_tags=True):
+ if reuse_index:
+ idx = search.ReusableIndex()
+ else:
+ idx = search.Index()
+
+ idx.open()
+ try:
+ idx.index_book(self, book_info)
+ if index_tags:
+ idx.index_tags()
+ finally:
+ idx.close()
@classmethod
def from_xml_file(cls, xml_file, **kwargs):
+ from django.core.files import File
+ from librarian import dcparser
+
# use librarian to parse meta-data
book_info = dcparser.parse(xml_file)
@classmethod
def from_text_and_meta(cls, raw_file, book_info, overwrite=False,
build_epub=True, build_txt=True, build_pdf=True, build_mobi=True,
- search_index=True):
+ search_index=True, search_index_tags=True, search_index_reuse=False):
import re
+ from sortify import sortify
# check for parts before we do anything
children = []
if hasattr(book_info, 'parts'):
for part_url in book_info.parts:
- base, slug = part_url.rsplit('/', 1)
try:
- children.append(Book.objects.get(slug=slug))
+ children.append(Book.objects.get(slug=part_url.slug))
except Book.DoesNotExist, e:
- raise Book.DoesNotExist(_('Book with slug = "%s" does not exist.') % slug)
+ raise Book.DoesNotExist(_('Book "%s" does not exist.') %
+ part_url.slug)
# Read book metadata
- book_base, book_slug = book_info.url.rsplit('/', 1)
- if re.search(r'[^a-zA-Z0-9-]', book_slug):
+ book_slug = book_info.url.slug
+ if re.search(r'[^a-z0-9-]', book_slug):
raise ValueError('Invalid characters in slug')
book, created = Book.objects.get_or_create(slug=book_slug)
book_shelves = []
else:
if not overwrite:
- raise Book.AlreadyExists(_('Book %s already exists') % book_slug)
+ raise Book.AlreadyExists(_('Book %s already exists') % (
+ book_slug))
# Save shelves for this book
book_shelves = list(book.tags.filter(category='set'))
+ book.language = book_info.language
book.title = book_info.title
+ if book_info.variant_of:
+ book.common_slug = book_info.variant_of.slug
+ else:
+ book.common_slug = book.slug
book.set_extra_info_value(book_info.to_dict())
book.save()
- meta_tags = []
- categories = (('kinds', 'kind'), ('genres', 'genre'), ('authors', 'author'), ('epochs', 'epoch'))
- for field_name, category in categories:
- try:
- tag_names = getattr(book_info, field_name)
- except:
- tag_names = [getattr(book_info, category)]
- for tag_name in tag_names:
- tag_sort_key = tag_name
- if category == 'author':
- tag_sort_key = tag_name.last_name
- tag_name = ' '.join(tag_name.first_names) + ' ' + tag_name.last_name
- tag, created = Tag.objects.get_or_create(slug=slughifi(tag_name), category=category)
- if created:
- tag.name = tag_name
- tag.sort_key = sortify(tag_sort_key.lower())
- tag.save()
- meta_tags.append(tag)
+ meta_tags = Tag.tags_from_info(book_info)
book.tags = set(meta_tags + book_shelves)
if not settings.NO_BUILD_TXT and build_txt:
book.build_txt()
+ book.build_cover(book_info)
+
if not settings.NO_BUILD_EPUB and build_epub:
- book.root_ancestor.build_epub()
+ book.build_epub()
if not settings.NO_BUILD_PDF and build_pdf:
- book.root_ancestor.build_pdf()
+ book.build_pdf()
if not settings.NO_BUILD_MOBI and build_mobi:
book.build_mobi()
if not settings.NO_SEARCH_INDEX and search_index:
- book.search_index()
+ book.search_index(index_tags=search_index_tags, reuse_index=search_index_reuse)
+ #index_book.delay(book.id, book_info)
book_descendants = list(book.children.all())
+ descendants_tags = set()
# add l-tag to descendants and their fragments
- # delete unnecessary EPUB files
while len(book_descendants) > 0:
child_book = book_descendants.pop(0)
+ descendants_tags.update(child_book.tags)
child_book.tags = list(child_book.tags) + [book_tag]
child_book.save()
for fragment in child_book.fragments.all():
fragment.tags = set(list(fragment.tags) + [book_tag])
book_descendants += list(child_book.children.all())
+ for tag in descendants_tags:
+ touch_tag(tag)
+
book.save()
# refresh cache
book.reset_tag_counter()
book.reset_theme_counter()
+ cls.published.send(sender=book)
return book
+ def related_info(self):
+ """Keeps info about related objects (tags, media) in cache field."""
+ if self._related_info is not None:
+ return self._related_info
+ else:
+ rel = {'tags': {}, 'media': {}}
+
+ tags = self.tags.filter(category__in=(
+ 'author', 'kind', 'genre', 'epoch'))
+ tags = split_tags(tags)
+ for category in tags:
+ rel['tags'][category] = [
+ (t.name, t.slug) for t in tags[category]]
+
+ for media_format in BookMedia.formats:
+ rel['media'][media_format] = self.has_media(media_format)
+
+ book = self
+ parents = []
+ while book.parent:
+ parents.append((book.parent.title, book.parent.slug))
+ book = book.parent
+ parents = parents[::-1]
+ if parents:
+ rel['parents'] = parents
+
+ if self.pk:
+ type(self).objects.filter(pk=self.pk).update(_related_info=rel)
+ return rel
+
def reset_tag_counter(self):
if self.id is None:
return
cache_key = "Book.tag_counter/%d" % self.id
- cache.delete(cache_key)
+ permanent_cache.delete(cache_key)
if self.parent:
self.parent.reset_tag_counter()
def tag_counter(self):
if self.id:
cache_key = "Book.tag_counter/%d" % self.id
- tags = cache.get(cache_key)
+ tags = permanent_cache.get(cache_key)
else:
tags = None
tags[tag.pk] = 1
if self.id:
- cache.set(cache_key, tags, CACHE_FOREVER)
+ permanent_cache.set(cache_key, tags)
return tags
def reset_theme_counter(self):
return
cache_key = "Book.theme_counter/%d" % self.id
- cache.delete(cache_key)
+ permanent_cache.delete(cache_key)
if self.parent:
self.parent.reset_theme_counter()
def theme_counter(self):
if self.id:
cache_key = "Book.theme_counter/%d" % self.id
- tags = cache.get(cache_key)
+ tags = permanent_cache.get(cache_key)
else:
tags = None
tags[tag.pk] = tags.get(tag.pk, 0) + 1
if self.id:
- cache.set(cache_key, tags, CACHE_FOREVER)
+ permanent_cache.set(cache_key, tags)
return tags
def pretty_title(self, html_links=False):
return objects
+ @classmethod
+ def book_list(cls, filter=None):
+ """Generates a hierarchical listing of all books.
+
+ Books are optionally filtered with a test function.
+
+ """
+
+ books_by_parent = {}
+ books = cls.objects.all().order_by('parent_number', 'sort_key').only(
+ 'title', 'parent', 'slug')
+ if filter:
+ books = books.filter(filter).distinct()
+ book_ids = set((book.pk for book in books))
+ for book in books:
+ parent = book.parent_id
+ if parent not in book_ids:
+ parent = None
+ books_by_parent.setdefault(parent, []).append(book)
+ else:
+ for book in books:
+ books_by_parent.setdefault(book.parent_id, []).append(book)
+
+ orphans = []
+ books_by_author = SortedDict()
+ for tag in Tag.objects.filter(category='author'):
+ books_by_author[tag] = []
+
+ for book in books_by_parent.get(None,()):
+ authors = list(book.tags.filter(category='author'))
+ if authors:
+ for author in authors:
+ books_by_author[author].append(book)
+ else:
+ orphans.append(book)
+
+ return books_by_author, orphans, books_by_parent
+
+ _audiences_pl = {
+ "SP1": (1, u"szkoła podstawowa"),
+ "SP2": (1, u"szkoła podstawowa"),
+ "P": (1, u"szkoła podstawowa"),
+ "G": (2, u"gimnazjum"),
+ "L": (3, u"liceum"),
+ "LP": (3, u"liceum"),
+ }
+ def audiences_pl(self):
+ audiences = self.get_extra_info_value().get('audiences', [])
+ audiences = sorted(set([self._audiences_pl[a] for a in audiences]))
+ return [a[1] for a in audiences]
+
+ def choose_fragment(self):
+ tag = self.book_tag()
+ fragments = Fragment.tagged.with_any([tag])
+ if fragments.exists():
+ return fragments.order_by('?')[0]
+ elif self.parent:
+ return self.parent.choose_fragment()
+ else:
+ return None
+
def _has_factory(ftype):
has = lambda self: bool(getattr(self, "%s_file" % ftype))
# add the file fields
-for t in Book.file_types:
+for t in Book.formats:
field_name = "%s_file" % t
models.FileField(_("%s file" % t.upper()),
upload_to=book_upload_path(t),
verbose_name_plural = _('fragments')
def get_absolute_url(self):
- return '%s#m%s' % (reverse('book_text', kwargs={'slug': self.book.slug}), self.anchor)
+ return '%s#m%s' % (reverse('book_text', args=[self.book.slug]), self.anchor)
def reset_short_html(self):
if self.id is None:
cache_key = "Fragment.short_html/%d/%s"
for lang, langname in settings.LANGUAGES:
- cache.delete(cache_key % (self.id, lang))
+ permanent_cache.delete(cache_key % (self.id, lang))
+
+ def get_short_text(self):
+ """Returns short version of the fragment."""
+ return self.short_text if self.short_text else self.text
def short_html(self):
if self.id:
cache_key = "Fragment.short_html/%d/%s" % (self.id, get_language())
- short_html = cache.get(cache_key)
+ short_html = permanent_cache.get(cache_key)
else:
short_html = None
short_html = unicode(render_to_string('catalogue/fragment_short.html',
{'fragment': self}))
if self.id:
- cache.set(cache_key, short_html, CACHE_FOREVER)
+ permanent_cache.set(cache_key, short_html)
return mark_safe(short_html)
-class FileRecord(models.Model):
- slug = models.SlugField(_('slug'), max_length=120, db_index=True)
- type = models.CharField(_('type'), max_length=20, db_index=True)
- sha1 = models.CharField(_('sha-1 hash'), max_length=40)
- time = models.DateTimeField(_('time'), auto_now_add=True)
+class Collection(models.Model):
+ """A collection of books, which might be defined before publishing them."""
+ title = models.CharField(_('title'), max_length=120, db_index=True)
+ slug = models.SlugField(_('slug'), max_length=120, primary_key=True)
+ description = models.TextField(_('description'), null=True, blank=True)
+
+ models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
+ book_slugs = models.TextField(_('book slugs'))
class Meta:
- ordering = ('-time','-slug', '-type')
- verbose_name = _('file record')
- verbose_name_plural = _('file records')
+ ordering = ('title',)
+ verbose_name = _('collection')
+ verbose_name_plural = _('collections')
def __unicode__(self):
- return "%s %s.%s" % (self.sha1, self.slug, self.type)
+ return self.title
+
###########
#
def _tags_updated_handler(sender, affected_tags, **kwargs):
# reset tag global counter
# we want Tag.changed_at updated for API to know the tag was touched
- Tag.objects.filter(pk__in=[tag.pk for tag in affected_tags]).update(book_count=None, changed_at=datetime.now())
+ for tag in affected_tags:
+ touch_tag(tag)
# if book tags changed, reset book tag counter
if isinstance(sender, Book) and \
instance.book.save()
pre_delete.connect(_pre_delete_handler)
+
def _post_save_handler(sender, instance, **kwargs):
""" refresh all the short_html stuff on BookMedia update """
if sender == BookMedia:
instance.book.save()
post_save.connect(_post_save_handler)
+
+
+@django.dispatch.receiver(post_delete, sender=Book)
+def _remove_book_from_index_handler(sender, instance, **kwargs):
+ """ remove the book from search index, when it is deleted."""
+ idx = search.Index()
+ idx.open(timeout=10000) # 10 seconds timeout.
+ try:
+ idx.remove_book(instance)
+ finally:
+ idx.close()
fnp / wolnelektury.git / blobdiff