# 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 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 django.core.files import File
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 ExistingFile, BookImportDocProvider
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__()
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
name = slughifi(filename.split(".")[0])
else:
name = slughifi(media.name)
- return 'lektura/%s.%s' % (name[:maxlen-len('lektura/.%s' % ext)-4], ext)
+ return 'book/%s/%s.%s' % (ext, name[:maxlen-len('book/%s/.%s' % (ext, ext))-4], ext)
return get_dynamic_path
class BookMedia(models.Model):
type = models.CharField(_('type'), choices=MEDIA_FORMATS, max_length="100")
name = models.CharField(_('name'), max_length="100")
- file = models.FileField(_('file'), upload_to=book_upload_path())
+ 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')
verbose_name_plural = _('book media')
def save(self, *args, **kwargs):
+ try:
+ old = BookMedia.objects.get(pk=self.pk)
+ except BookMedia.DoesNotExist, e:
+ pass
+ 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)
+
super(BookMedia, self).save(*args, **kwargs)
extra_info = self.get_extra_info_value()
extra_info.update(self.read_meta())
Reads some metadata from the audiobook.
"""
- artist_name = director_name = ''
+ 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':
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}
+ return {'artist_name': artist_name, 'director_name': director_name,
+ 'project': project, 'funded_by': funded_by}
@staticmethod
def read_source_sha1(filepath, filetype):
try:
audio = id3.ID3(filepath)
return [t.data for t in audio.getall('PRIV')
- if t.owner=='http://wolnelektury.pl?flac_sha1'][0]
+ if t.owner=='wolnelektury.pl?flac_sha1'][0]
except:
return None
elif filetype == 'ogg':
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)
description = models.TextField(_('description'), blank=True)
- created_at = models.DateTimeField(_('creation date'), auto_now_add=True)
- _short_html = models.TextField(_('short HTML'), editable=False)
+ 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'))
+ 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
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)
tags = managers.TagDescriptor(Tag)
- _tag_counter = JSONField(null=True, editable=False)
- _theme_counter = JSONField(null=True, editable=False)
+ html_built = django.dispatch.Signal()
class AlreadyExists(Exception):
pass
class Meta:
- ordering = ('title',)
+ ordering = ('sort_key',)
verbose_name = _('book')
verbose_name_plural = _('books')
return self.title
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:
- # 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)
+ self.reset_short_html()
- return super(Book, self).save(force_insert, force_update)
+ return ret
@permalink
def get_absolute_url(self):
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))
+ # 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')))
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))
+ 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):
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, ParseError
+ from tempfile import NamedTemporaryFile
+ import os
+
+ try:
+ 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)
+
+ except ParseError, e:
+ print '%(file)s:%(name)s:%(message)s; use -v to see more output' % {
+ 'file': self.xml_file.path,
+ 'name': e.__class__.__name__,
+ 'message': e
+ }
+
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
out = StringIO()
text.transform(open(self.xml_file.path), out)
self.txt_file.save('%s.txt' % self.slug, ContentFile(out.getvalue()))
- self.save()
+
+
+ def build_html(self):
+ from tempfile import NamedTemporaryFile
+ from markupstring import MarkupString
+
+ 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))
+
+ # get ancestor l-tags for adding to new fragments
+ ancestor_tags = []
+ 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(self.html_file.path)
+ for fragment in closed_fragments.values():
+ try:
+ theme_names = [s.strip() for s in fragment.themes.split(',')]
+ except AttributeError:
+ continue
+ themes = []
+ for theme_name in theme_names:
+ if not theme_name:
+ continue
+ tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name), category='theme')
+ if created:
+ tag.name = theme_name
+ tag.sort_key = theme_name.lower()
+ tag.save()
+ themes.append(tag)
+ if not themes:
+ continue
+
+ text = fragment.to_string()
+ short_text = ''
+ if (len(MarkupString(text)) > 240):
+ short_text = unicode(MarkupString(text)[:160])
+ new_fragment = Fragment.objects.create(anchor=fragment.id, book=self,
+ text=text, short_text=short_text)
+
+ 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
@classmethod
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
- from tempfile import NamedTemporaryFile
- from markupstring import MarkupString
- from django.core.files.storage import default_storage
# check for parts before we do anything
children = []
book.title = book_info.title
book.set_extra_info_value(book_info.to_dict())
- book._short_html = ''
book.save()
- book_tags = []
+ meta_tags = []
categories = (('kinds', 'kind'), ('genres', 'genre'), ('authors', 'author'), ('epochs', 'epoch'))
for field_name, category in categories:
try:
tag, created = Tag.objects.get_or_create(slug=slughifi(tag_name), category=category)
if created:
tag.name = tag_name
- tag.sort_key = tag_sort_key.lower()
+ tag.sort_key = sortify(tag_sort_key.lower())
tag.save()
- book_tags.append(tag)
+ meta_tags.append(tag)
- book.tags = set(book_tags + book_shelves)
+ book.tags = set(meta_tags + book_shelves)
book_tag = book.book_tag()
# delete old fragments when overwriting
book.fragments.all().delete()
- 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)
-
- # get ancestor l-tags for adding to new fragments
- ancestor_tags = []
- p = book.parent
- while p:
- ancestor_tags.append(p.book_tag())
- p = p.parent
-
- # Extract fragments
- closed_fragments, open_fragments = html.extract_fragments(book.html_file.path)
- for fragment in closed_fragments.values():
- try:
- theme_names = [s.strip() for s in fragment.themes.split(',')]
- except AttributeError:
- continue
- themes = []
- for theme_name in theme_names:
- if not theme_name:
- continue
- tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name), category='theme')
- if created:
- tag.name = theme_name
- tag.sort_key = theme_name.lower()
- tag.save()
- themes.append(tag)
- if not themes:
- continue
-
- text = fragment.to_string()
- 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.save()
- new_fragment.tags = set(book_tags + themes + [book_tag] + ancestor_tags)
-
+ if book.build_html():
if not settings.NO_BUILD_TXT and build_txt:
book.build_txt()
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
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 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)
- return tags
-
def reset_tag_counter(self):
- self._tag_counter = None
- self.save(reset_short_html=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)
+ 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)
+ 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
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
+
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')
def get_absolute_url(self):
return '%s#m%s' % (reverse('book_text', kwargs={'slug': 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):
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
+ Tag.objects.filter(pk__in=[tag.pk for tag in affected_tags]).update(book_count=None, changed_at=datetime.now())
# if book tags changed, reset book tag counter
if isinstance(sender, Book) and \
fnp / wolnelektury.git / blobdiff