X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/0afa8ce8f8858c875404136d81dfb1645aeac19f..73ce961f14509aabfa26536f847afd28111029c6:/apps/catalogue/models.py
diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index 54a915227..9a1e71ad0 100644
--- a/apps/catalogue/models.py
+++ b/apps/catalogue/models.py
@@ -2,24 +2,38 @@
# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
+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.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.conf import settings
from newtagging.models import TagBase, tags_updated
from newtagging import managers
-from catalogue.fields import JSONField
+from catalogue.fields import JSONField, OverwritingFileField
+from catalogue.utils import create_zip, split_tags
+from catalogue.tasks import touch_tag, index_book
+from shutil import copy
+from glob import glob
+import re
+from os import path
-from librarian import dcparser, html, epub, NoDublinCore
-from mutagen import id3
+import search
+# Those are hard-coded here so that makemessages sees them.
TAG_CATEGORIES = (
('author', _('author')),
('epoch', _('epoch')),
@@ -30,6 +44,9 @@ TAG_CATEGORIES = (
('book', _('book')),
)
+# not quite, but Django wants you to set a timeout
+CACHE_FOREVER = 2419200 # 28 days
+
class TagSubcategoryManager(models.Manager):
def __init__(self, subcategory):
@@ -43,17 +60,22 @@ class TagSubcategoryManager(models.Manager):
class Tag(TagBase):
name = models.CharField(_('name'), max_length=50, db_index=True)
slug = models.SlugField(_('slug'), max_length=120, db_index=True)
- sort_key = models.SlugField(_('sort key'), max_length=120, db_index=True)
+ sort_key = models.CharField(_('sort key'), max_length=120, db_index=True)
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=False, null=True)
+ book_count = models.IntegerField(_('book count'), blank=True, null=True)
gazeta_link = models.CharField(blank=True, max_length=240)
wiki_link = models.CharField(blank=True, max_length=240)
+ 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)
+
+ class UrlDeprecationWarning(DeprecationWarning):
+ pass
+
categories_rev = {
'autor': 'author',
'epoka': 'epoch',
@@ -86,25 +108,22 @@ class Tag(TagBase):
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):
@@ -112,19 +131,20 @@ class Tag(TagBase):
real_tags = []
ambiguous_slugs = []
category = None
+ deprecated = False
tags_splitted = tags.split('/')
- for index, name in enumerate(tags_splitted):
- if name in Tag.categories_rev:
+ for name in tags_splitted:
+ if category:
+ real_tags.append(Tag.objects.get(slug=name, category=category))
+ category = None
+ elif name in Tag.categories_rev:
category = Tag.categories_rev[name]
else:
- if category:
- real_tags.append(Tag.objects.get(slug=name, category=category))
- category = None
- else:
- try:
- real_tags.append(Tag.objects.exclude(category='book').get(slug=name))
- except Tag.MultipleObjectsReturned, e:
- ambiguous_slugs.append(name)
+ try:
+ real_tags.append(Tag.objects.exclude(category='book').get(slug=name))
+ deprecated = True
+ except Tag.MultipleObjectsReturned, e:
+ ambiguous_slugs.append(name)
if category:
# something strange left off
@@ -135,8 +155,11 @@ class Tag(TagBase):
e.tags = real_tags
e.ambiguous_slugs = ambiguous_slugs
raise e
- else:
- return real_tags
+ if deprecated:
+ e = Tag.UrlDeprecationWarning()
+ e.tags = real_tags
+ raise e
+ return real_tags
else:
return TagBase.get_tag_list(tags)
@@ -144,77 +167,240 @@ class Tag(TagBase):
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):
- def get_dynamic_path(book, filename):
- return 'lektura/%s.%s' % (book.slug, ext)
- return get_dynamic_path
+def book_upload_path(ext=None, maxlen=100):
+ 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):
+ 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)
+ extra_info = JSONField(_('extra information'), default='{}', editable=False)
+ book = models.ForeignKey('Book', related_name='media')
+ source_sha1 = models.CharField(null=True, blank=True, max_length=40, editable=False)
+ def __unicode__(self):
+ return "%s (%s)" % (self.name, self.file.name.split("/")[-1])
-class Book(models.Model):
- title = models.CharField(_('title'), max_length=120)
- 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=True)
- _short_html = models.TextField(_('short HTML'), editable=False)
- parent_number = models.IntegerField(_('parent number'), default=0)
- extra_info = JSONField(_('extra information'))
- gazeta_link = models.CharField(blank=True, max_length=240)
- wiki_link = models.CharField(blank=True, max_length=240)
+ class Meta:
+ ordering = ('type', 'name')
+ verbose_name = _('book media')
+ verbose_name_plural = _('book media')
+ def save(self, *args, **kwargs):
+ from slughifi import slughifi
+ from catalogue.utils import ExistingFile, remove_zip
- # Formats
- 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)
- odt_file = models.FileField(_('ODT file'), upload_to=book_upload_path('odt'), blank=True)
- txt_file = models.FileField(_('TXT file'), upload_to=book_upload_path('txt'), blank=True)
- mp3_file = models.FileField(_('MP3 file'), upload_to=book_upload_path('mp3'), blank=True)
- ogg_file = models.FileField(_('OGG file'), upload_to=book_upload_path('ogg'), blank=True)
- daisy_file = models.FileField(_('DAISY file'), upload_to=book_upload_path('daisy.zip'), blank=True)
+ try:
+ old = BookMedia.objects.get(pk=self.pk)
+ except BookMedia.DoesNotExist, e:
+ old = None
+ else:
+ # if name changed, change the file name, too
+ if slughifi(self.name) != slughifi(old.name):
+ self.file.save(None, ExistingFile(self.file.path), save=False, leave=True)
- parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
+ super(BookMedia, self).save(*args, **kwargs)
+
+ # remove the zip package for book with modified media
+ 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())
+ self.set_extra_info_value(extra_info)
+ self.source_sha1 = self.read_source_sha1(self.file.path, self.type)
+ return super(BookMedia, self).save(*args, **kwargs)
+
+ def read_meta(self):
+ """
+ Reads some metadata from the audiobook.
+ """
+ import mutagen
+ from mutagen import id3
+
+ artist_name = director_name = project = funded_by = ''
+ if self.type == 'mp3':
+ try:
+ audio = id3.ID3(self.file.path)
+ artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
+ director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
+ project = ", ".join([t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?project'])
+ funded_by = ", ".join([t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?funded_by'])
+ except:
+ pass
+ elif self.type == 'ogg':
+ try:
+ audio = mutagen.File(self.file.path)
+ artist_name = ', '.join(audio.get('artist', []))
+ director_name = ', '.join(audio.get('conductor', []))
+ project = ", ".join(audio.get('project', []))
+ funded_by = ", ".join(audio.get('funded_by', []))
+ except:
+ pass
+ else:
+ return {}
+ return {'artist_name': artist_name, 'director_name': director_name,
+ 'project': project, 'funded_by': funded_by}
+
+ @staticmethod
+ def read_source_sha1(filepath, filetype):
+ """
+ Reads source file SHA1 from audiobok metadata.
+ """
+ import mutagen
+ from mutagen import id3
+
+ if filetype == 'mp3':
+ try:
+ audio = id3.ID3(filepath)
+ return [t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?flac_sha1'][0]
+ except:
+ return None
+ elif filetype == 'ogg':
+ try:
+ audio = mutagen.File(filepath)
+ return audio.get('flac_sha1', [None])[0]
+ except:
+ return None
+ else:
+ return None
- objects = models.Manager()
- tagged = managers.ModelTaggedItemManager(Tag)
- tags = managers.TagDescriptor(Tag)
- _tag_counter = JSONField(null=True, editable=False)
- _theme_counter = JSONField(null=True, editable=False)
+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, 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)
+ parent_number = models.IntegerField(_('parent number'), default=0)
+ extra_info = JSONField(_('extra information'), default='{}')
+ gazeta_link = models.CharField(blank=True, max_length=240)
+ wiki_link = models.CharField(blank=True, max_length=240)
+ # files generated during publication
+
+ 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')
+ objects = models.Manager()
+ tagged = managers.ModelTaggedItemManager(Tag)
+ tags = managers.TagDescriptor(Tag)
+
+ html_built = django.dispatch.Signal()
+ published = django.dispatch.Signal()
class AlreadyExists(Exception):
pass
class Meta:
- ordering = ('title',)
+ ordering = ('sort_key',)
verbose_name = _('book')
verbose_name_plural = _('books')
def __unicode__(self):
return self.title
- def save(self, force_insert=False, force_update=False, reset_short_html=True, refresh_mp3=True, **kwargs):
+ 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)
+
if reset_short_html:
- # Reset _short_html during save
- update = {}
- for key in filter(lambda x: x.startswith('_short_html'), self.__dict__):
- update[key] = ''
- self.__setattr__(key, '')
- # Fragment.short_html relies on book's tags, so reset it here too
- self.fragments.all().update(**update)
-
- book = super(Book, self).save(force_insert, force_update)
-
- if refresh_mp3 and self.mp3_file:
- print self.mp3_file, self.mp3_file.path
- extra_info = self.get_extra_info_value()
- extra_info.update(self.get_mp3_info())
- self.set_extra_info_value(extra_info)
- book = super(Book, self).save(force_insert, force_update)
+ self.reset_short_html()
- return book
+ return ret
@permalink
def get_absolute_url(self):
@@ -232,226 +418,222 @@ class Book(models.Model):
book_tag, created = Tag.objects.get_or_create(slug=slug, category='book')
if created:
book_tag.name = self.title[:50]
- book_tag.sort_key = slug
+ book_tag.sort_key = self.title.lower()
book_tag.save()
return book_tag
+ def has_media(self, type):
+ 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.formats:
+ return getattr(self, "%s_file" % type)
+ else:
+ return self.media.filter(type=type)
+ else:
+ return None
+
+ def get_mp3(self):
+ return self.get_media("mp3")
+ def get_odt(self):
+ return self.get_media("odt")
+ def get_ogg(self):
+ return self.get_media("ogg")
+ def get_daisy(self):
+ return self.get_media("daisy")
+
+ def reset_short_html(self):
+ 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))
+ cache.delete("Book.mini_box/%d" % (self.id, ))
+ # 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):
- key = '_short_html_%s' % get_language()
- short_html = getattr(self, key)
+ 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 and len(short_html):
+ 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'%s' % (tag.get_absolute_url(), tag.name)) for tag in tags]
-
- formats = []
- if self.html_file:
- formats.append(u'%s' % (reverse('book_text', kwargs={'slug': self.slug}), _('Read online')))
- if self.pdf_file:
- formats.append(u'PDF' % self.pdf_file.url)
- if self.root_ancestor.epub_file:
- formats.append(u'EPUB' % self.root_ancestor.epub_file.url)
- if self.odt_file:
- formats.append(u'ODT' % self.odt_file.url)
- if self.txt_file:
- formats.append(u'TXT' % self.txt_file.url)
- if self.mp3_file:
- formats.append(u'MP3' % self.mp3_file.url)
- if self.ogg_file:
- formats.append(u'OGG' % self.ogg_file.url)
- if self.daisy_file:
- formats.append(u'DAISY' % self.daisy_file.url)
-
- formats = [mark_safe(format) for format in formats]
-
- setattr(self, key, unicode(render_to_string('catalogue/book_short.html',
- {'book': self, 'tags': tags, 'formats': formats})))
- self.save(reset_short_html=False)
- return mark_safe(getattr(self, key))
+ tags = self.tags.filter(category__in=('author', 'kind', 'genre', 'epoch'))
+ tags = split_tags(tags)
+ formats = {}
+ # files generated during publication
+ for ebook_format in self.ebook_formats:
+ if self.has_media(ebook_format):
+ formats[ebook_format] = self.get_media(ebook_format)
- @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
+ 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)
+
+ def mini_box(self):
+ if self.id:
+ cache_key = "Book.mini_box/%d" % (self.id, )
+ short_html = cache.get(cache_key)
+ else:
+ short_html = None
+ if short_html is None:
+ authors = self.tags.filter(category='author')
- def get_mp3_info(self):
- """Retrieves artist and director names from audio ID3 tags."""
- audio = id3.ID3(self.mp3_file.path)
- artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
- director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
- return {'artist_name': artist_name, 'director_name': director_name}
+ short_html = unicode(render_to_string('catalogue/book_mini_box.html',
+ {'book': self, 'authors': authors, 'STATIC_URL': settings.STATIC_URL}))
+
+ if self.id:
+ cache.set(cache_key, short_html, CACHE_FOREVER)
+ return mark_safe(short_html)
def has_description(self):
return len(self.description) > 0
has_description.short_description = _('description')
has_description.boolean = True
- 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_odt_file(self):
- return bool(self.odt_file)
- has_odt_file.short_description = 'ODT'
- has_odt_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 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.
- """
-
+ # ugly ugly ugly
+ 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 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 hashlib import sha1
from django.core.files.base import ContentFile
- from librarian import DocProvider
+ from librarian.cover import WLCover
- class BookImportDocProvider(DocProvider):
- """ used for joined EPUBs """
+ if book_info is None:
+ book_info = self.wldocument().book_info
- def __init__(self, book):
- self.book = book
+ cover = WLCover(book_info).image()
+ imgstr = StringIO()
+ cover.save(imgstr, 'png')
+ self.cover.save(None, ContentFile(imgstr.getvalue()))
- def by_slug(self, slug):
- if slug == self.book.slug:
- return self.book.xml_file
- else:
- return Book.objects.get(slug=slug).xml_file
+ 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 os import unlink
+ from django.core.files import File
+ from catalogue.utils import remove_zip
- if self.parent:
- # don't need an epub
- return
+ pdf = self.wldocument().as_pdf(customizations=customizations)
- epub_file = StringIO()
- try:
- epub.transform(BookImportDocProvider(self), self.slug, epub_file)
- self.epub_file.save('%s.epub' % self.slug, ContentFile(epub_file.getvalue()), save=False)
- self.save()
- FileRecord(slug=self.slug, type='epub', sha1=sha1(epub_file.getvalue()).hexdigest()).save()
- except NoDublinCore:
- pass
+ 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
- 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 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())))
- @classmethod
- def from_xml_file(cls, xml_file, overwrite=False):
- # use librarian to parse meta-data
- book_info = dcparser.parse(xml_file)
+ def build_mobi(self):
+ """ (Re)builds the MOBI file.
- if not isinstance(xml_file, File):
- xml_file = File(open(xml_file))
+ """
+ from django.core.files import File
+ from catalogue.utils import remove_zip
- try:
- return cls.from_text_and_meta(xml_file, book_info, overwrite)
- finally:
- xml_file.close()
+ mobi = self.wldocument().as_mobi()
- @classmethod
- def from_text_and_meta(cls, raw_file, book_info, overwrite=False):
- from tempfile import NamedTemporaryFile
- from slughifi import slughifi
- from markupstring import MarkupString
- from django.core.files.storage import default_storage
+ self.mobi_file.save('%s.mobi' % self.slug, File(open(mobi.get_filename())))
- # Read book metadata
- book_base, book_slug = book_info.url.rsplit('/', 1)
- book, created = Book.objects.get_or_create(slug=book_slug)
+ # remove zip with all mobi files
+ remove_zip(settings.ALL_MOBI_ZIP)
- if created:
- book_shelves = []
- else:
- if not overwrite:
- raise Book.AlreadyExists(_('Book %s already exists') % book_slug)
- # Save shelves for this book
- book_shelves = list(book.tags.filter(category='set'))
+ def build_epub(self):
+ """(Re)builds the epub file."""
+ from django.core.files import File
+ from catalogue.utils import remove_zip
- book.title = book_info.title
- book.set_extra_info_value(book_info.to_dict())
- book._short_html = ''
- book.save()
+ epub = self.wldocument().as_epub()
- book_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 = slughifi(tag_sort_key)
- tag.save()
- book_tags.append(tag)
+ self.epub_file.save('%s.epub' % self.slug,
+ File(open(epub.get_filename())))
- book.tags = book_tags + book_shelves
+ # remove zip package with all epub files
+ remove_zip(settings.ALL_EPUB_ZIP)
- book_tag = book.book_tag()
+ def build_txt(self):
+ from django.core.files.base import ContentFile
- if hasattr(book_info, 'parts'):
- for n, part_url in enumerate(book_info.parts):
- base, slug = part_url.rsplit('/', 1)
- try:
- child_book = Book.objects.get(slug=slug)
- child_book.parent = book
- child_book.parent_number = n
- child_book.save()
- except Book.DoesNotExist, e:
- raise Book.DoesNotExist(_('Book with slug = "%s" does not exist.') % slug)
+ text = self.wldocument().as_text()
+ self.txt_file.save('%s.txt' % self.slug, ContentFile(text.get_string()))
- # Save XML and HTML files
- book.xml_file.save('%s.xml' % book.slug, raw_file, save=False)
- # delete old fragments when overwriting
- book.fragments.all().delete()
+ def build_html(self):
+ from markupstring import MarkupString
+ from django.core.files.base import ContentFile
+ from slughifi import slughifi
+ from librarian import html
- html_file = NamedTemporaryFile()
- if html.transform(book.xml_file.path, html_file, parse_dublincore=False):
- book.html_file.save('%s.html' % book.slug, File(html_file), save=False)
+ meta_tags = list(self.tags.filter(
+ category__in=('author', 'epoch', 'genre', 'kind')))
+ book_tag = self.book_tag()
+
+ 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 = []
- p = book.parent
+ p = self.parent
while p:
ancestor_tags.append(p.book_tag())
p = p.parent
+ # Delete old fragments and create them from scratch
+ self.fragments.all().delete()
# Extract fragments
- closed_fragments, open_fragments = html.extract_fragments(book.html_file.path)
+ closed_fragments, open_fragments = html.extract_fragments(self.html_file.path)
for fragment in closed_fragments.values():
try:
theme_names = [s.strip() for s in fragment.themes.split(',')]
@@ -464,7 +646,7 @@ class Book(models.Model):
tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name), category='theme')
if created:
tag.name = theme_name
- tag.sort_key = slughifi(theme_name)
+ tag.sort_key = theme_name.lower()
tag.save()
themes.append(tag)
if not themes:
@@ -474,86 +656,332 @@ class Book(models.Model):
short_text = ''
if (len(MarkupString(text)) > 240):
short_text = unicode(MarkupString(text)[:160])
- new_fragment, created = Fragment.objects.get_or_create(anchor=fragment.id, book=book,
- defaults={'text': text, 'short_text': short_text})
+ new_fragment = Fragment.objects.create(anchor=fragment.id, book=self,
+ text=text, short_text=short_text)
new_fragment.save()
- new_fragment.tags = set(book_tags + themes + [book_tag] + ancestor_tags)
+ 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_format(format_):
+ def pretty_file_name(book):
+ return "%s/%s.%s" % (
+ b.get_extra_info_value()['author'],
+ b.slug,
+ format_)
+
+ field_name = "%s_file" % format_
+ books = Book.objects.filter(parent=None).exclude(**{field_name: ""})
+ paths = [(pretty_file_name(b), getattr(b, field_name).path)
+ for b in books]
+ result = create_zip.delay(paths,
+ getattr(settings, "ALL_%s_ZIP" % format_.upper()))
+ return result.wait()
+
+ 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, "%s_%s" % (self.slug, format_))
+ return result.wait()
+
+ def search_index(self, book_info=None, reuse_index=False):
+ if reuse_index:
+ idx = search.ReusableIndex()
+ else:
+ idx = search.Index()
+
+ idx.open()
+ try:
+ idx.index_book(self, book_info)
+ 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)
+
+ if not isinstance(xml_file, File):
+ xml_file = File(open(xml_file))
+
+ try:
+ return cls.from_text_and_meta(xml_file, book_info, **kwargs)
+ finally:
+ xml_file.close()
+
+ @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):
+ 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:
+ try:
+ children.append(Book.objects.get(slug=part_url.slug))
+ except Book.DoesNotExist, e:
+ raise Book.DoesNotExist(_('Book "%s" does not exist.') %
+ part_url.slug)
+
+
+ # Read book metadata
+ 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)
+
+ if created:
+ book_shelves = []
+ else:
+ if not overwrite:
+ 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 = Tag.tags_from_info(book_info)
+
+ book.tags = set(meta_tags + book_shelves)
+
+ book_tag = book.book_tag()
+
+ for n, child_book in enumerate(children):
+ child_book.parent = book
+ child_book.parent_number = n
+ child_book.save()
+
+ # Save XML and HTML files
+ book.xml_file.save('%s.xml' % book.slug, raw_file, save=False)
+
+ # delete old fragments when overwriting
+ book.fragments.all().delete()
+
+ if book.build_html():
+ 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.build_epub()
+
+ if not settings.NO_BUILD_PDF and build_pdf:
+ book.build_pdf()
+
+ if not settings.NO_BUILD_MOBI and build_mobi:
+ book.build_mobi()
- if not book.parent:
- book.build_epub(remove_descendants=False)
+ if not settings.NO_SEARCH_INDEX and search_index:
+ 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]
- if child_book.has_epub_file():
- child_book.epub_file.delete()
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.delay(tag)
+
+ book.save()
+
# refresh cache
book.reset_tag_counter()
book.reset_theme_counter()
- book.save()
+ cls.published.send(sender=book)
return book
-
- def refresh_tag_counter(self):
- tags = {}
- for child in self.children.all().order_by():
- for tag_pk, value in child.tag_counter.iteritems():
- tags[tag_pk] = tags.get(tag_pk, 0) + value
- for tag in self.tags.exclude(category__in=('book', 'theme', 'set')).order_by():
- tags[tag.pk] = 1
- self.set__tag_counter_value(tags)
- self.save(reset_short_html=False, refresh_mp3=False)
- return tags
-
def reset_tag_counter(self):
- self._tag_counter = None
- self.save(reset_short_html=False, refresh_mp3=False)
+ if self.id is None:
+ return
+
+ cache_key = "Book.tag_counter/%d" % self.id
+ cache.delete(cache_key)
if self.parent:
self.parent.reset_tag_counter()
@property
def tag_counter(self):
- if self._tag_counter is None:
- return self.refresh_tag_counter()
- return dict((int(k), v) for k, v in self.get__tag_counter_value().iteritems())
-
- def refresh_theme_counter(self):
- tags = {}
- for fragment in Fragment.tagged.with_any([self.book_tag()]).order_by():
- for tag in fragment.tags.filter(category='theme').order_by():
- tags[tag.pk] = tags.get(tag.pk, 0) + 1
- self.set__theme_counter_value(tags)
- self.save(reset_short_html=False, refresh_mp3=False)
+ if self.id:
+ cache_key = "Book.tag_counter/%d" % self.id
+ tags = cache.get(cache_key)
+ else:
+ tags = None
+
+ if tags is None:
+ tags = {}
+ for child in self.children.all().order_by():
+ for tag_pk, value in child.tag_counter.iteritems():
+ tags[tag_pk] = tags.get(tag_pk, 0) + value
+ for tag in self.tags.exclude(category__in=('book', 'theme', 'set')).order_by():
+ tags[tag.pk] = 1
+
+ if self.id:
+ cache.set(cache_key, tags, CACHE_FOREVER)
return tags
def reset_theme_counter(self):
- self._theme_counter = None
- self.save(reset_short_html=False, refresh_mp3=False)
+ if self.id is None:
+ return
+
+ cache_key = "Book.theme_counter/%d" % self.id
+ cache.delete(cache_key)
if self.parent:
self.parent.reset_theme_counter()
@property
def theme_counter(self):
- if self._theme_counter is None:
- return self.refresh_theme_counter()
- return dict((int(k), v) for k, v in self.get__theme_counter_value().iteritems())
+ if self.id:
+ cache_key = "Book.theme_counter/%d" % self.id
+ tags = cache.get(cache_key)
+ else:
+ tags = None
+
+ if tags is None:
+ tags = {}
+ for fragment in Fragment.tagged.with_any([self.book_tag()]).order_by():
+ for tag in fragment.tags.filter(category='theme').order_by():
+ tags[tag.pk] = tags.get(tag.pk, 0) + 1
+
+ if self.id:
+ cache.set(cache_key, tags, CACHE_FOREVER)
+ return tags
+
+ def pretty_title(self, html_links=False):
+ book = self
+ names = list(book.tags.filter(category='author'))
+
+ books = []
+ while book:
+ books.append(book)
+ book = book.parent
+ names.extend(reversed(books))
+
+ if html_links:
+ names = ['%s' % (tag.get_absolute_url(), tag.name) for tag in names]
+ else:
+ names = [tag.name for tag in names]
+
+ return ', '.join(names)
+
+ @classmethod
+ def tagged_top_level(cls, tags):
+ """ Returns top-level books tagged with `tags'.
+
+ It only returns those books which don't have ancestors which are
+ also tagged with those tags.
+
+ """
+ # get relevant books and their tags
+ objects = cls.tagged.with_all(tags)
+ # eliminate descendants
+ l_tags = Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in objects])
+ descendants_keys = [book.pk for book in cls.tagged.with_any(l_tags)]
+ if descendants_keys:
+ objects = objects.exclude(pk__in=descendants_keys)
+
+ 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"szkoÅa podstawowa"),
+ "SP2": (1, u"szkoÅa podstawowa"),
+ "P": (1, u"szkoÅa 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 _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.formats:
+ 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 = models.TextField(editable=False)
anchor = models.CharField(max_length=120)
book = models.ForeignKey(Book, related_name='fragments')
@@ -567,38 +995,63 @@ class Fragment(models.Model):
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:
+ return
+
+ cache_key = "Fragment.short_html/%d/%s"
+ for lang, langname in settings.LANGUAGES:
+ cache.delete(cache_key % (self.id, lang))
def short_html(self):
- key = '_short_html_%s' % get_language()
- short_html = getattr(self, key)
- if short_html and len(short_html):
+ if self.id:
+ cache_key = "Fragment.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:
- setattr(self, key, unicode(render_to_string('catalogue/fragment_short.html',
- {'fragment': self})))
- self.save()
- return mark_safe(getattr(self, key))
+ short_html = unicode(render_to_string('catalogue/fragment_short.html',
+ {'fragment': self}))
+ if self.id:
+ cache.set(cache_key, short_html, CACHE_FOREVER)
+ 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
+
+
+###########
+#
+# SIGNALS
+#
+###########
def _tags_updated_handler(sender, affected_tags, **kwargs):
# reset tag global counter
- Tag.objects.filter(pk__in=[tag.pk for tag in affected_tags]).update(book_count=None)
+ # we want Tag.changed_at updated for API to know the tag was touched
+ for tag in affected_tags:
+ touch_tag.delay(tag)
# if book tags changed, reset book tag counter
if isinstance(sender, Book) and \
@@ -612,3 +1065,15 @@ def _tags_updated_handler(sender, affected_tags, **kwargs):
sender.book.reset_theme_counter()
tags_updated.connect(_tags_updated_handler)
+
+def _pre_delete_handler(sender, instance, **kwargs):
+ """ refresh Book on BookMedia delete """
+ if sender == BookMedia:
+ 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)