X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/f4c540df2eb34b761e08f67396c22daf3b14ca10..7e6d14043e3e2dce8e3fdcef0b0fc649680b07b3:/apps/catalogue/models.py
diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index d90299611..2ca78b01e 100644
--- a/apps/catalogue/models.py
+++ b/apps/catalogue/models.py
@@ -8,10 +8,11 @@ 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
@@ -22,14 +23,12 @@ 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 catalogue.utils import create_zip
+from shutil import copy
+from glob import glob
+import re
+from os import path
-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')),
@@ -176,21 +175,46 @@ class Tag(TagBase):
return '/'.join((Tag.categories_dict[self.category], self.slug))
+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:
+ if media.type == 'daisy':
+ ext = 'daisy.zip'
+ else:
+ ext = media.type
+ 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.fileid(), h)
+ pdf_file = models.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.fileid(),)
+ 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):
@@ -211,6 +235,9 @@ class BookMedia(models.Model):
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:
@@ -223,7 +250,7 @@ class BookMedia(models.Model):
super(BookMedia, self).save(*args, **kwargs)
# remove the zip package for book with modified media
- remove_zip(self.book.slug)
+ remove_zip(self.book.fileid())
extra_info = self.get_extra_info_value()
extra_info.update(self.read_meta())
@@ -235,6 +262,8 @@ class BookMedia(models.Model):
"""
Reads some metadata from the audiobook.
"""
+ import mutagen
+ from mutagen import id3
artist_name = director_name = project = funded_by = ''
if self.type == 'mp3':
@@ -267,6 +296,8 @@ class BookMedia(models.Model):
"""
Reads source file SHA1 from audiobok metadata.
"""
+ import mutagen
+ from mutagen import id3
if filetype == 'mp3':
try:
@@ -288,7 +319,9 @@ class BookMedia(models.Model):
class Book(models.Model):
title = models.CharField(_('title'), max_length=120)
sort_key = models.CharField(_('sort key'), max_length=120, db_index=True, editable=False)
- slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
+ 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)
@@ -306,11 +339,16 @@ class Book(models.Model):
tags = managers.TagDescriptor(Tag)
html_built = django.dispatch.Signal()
+ published = django.dispatch.Signal()
+
+ URLID_RE = r'[a-z0-9-]+(?:/[a-z]{3})?'
+ FILEID_RE = r'[a-z0-9-]+(?:_[a-z]{3})?'
class AlreadyExists(Exception):
pass
class Meta:
+ unique_together = [['slug', 'language']]
ordering = ('sort_key',)
verbose_name = _('book')
verbose_name_plural = _('books')
@@ -318,7 +356,45 @@ class Book(models.Model):
def __unicode__(self):
return self.title
+ def urlid(self, sep='/'):
+ stem = self.slug
+ if self.language != settings.CATALOGUE_DEFAULT_LANGUAGE:
+ stem += sep + self.language
+ return stem
+
+ def fileid(self):
+ return self.urlid('_')
+
+ @staticmethod
+ def split_urlid(urlid, sep='/', default_lang=settings.CATALOGUE_DEFAULT_LANGUAGE):
+ """Splits a URL book id into slug and language code.
+
+ Returns a dictionary usable i.e. for object lookup, or None.
+
+ >>> Book.split_urlid("a-slug/pol", default_lang="eng")
+ {'slug': 'a-slug', 'language': 'pol'}
+ >>> Book.split_urlid("a-slug", default_lang="eng")
+ {'slug': 'a-slug', 'language': 'eng'}
+ >>> Book.split_urlid("a-slug_pol", "_", default_lang="eng")
+ {'slug': 'a-slug', 'language': 'pol'}
+ >>> Book.split_urlid("a-slug/eng", default_lang="eng")
+
+ """
+ parts = urlid.rsplit(sep, 1)
+ if len(parts) == 2:
+ if parts[1] == default_lang:
+ return None
+ return {'slug': parts[0], 'language': parts[1]}
+ else:
+ return {'slug': urlid, 'language': default_lang}
+
+ @classmethod
+ def split_fileid(cls, fileid):
+ return cls.split_urlid(fileid, '_')
+
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)
@@ -330,14 +406,18 @@ class Book(models.Model):
@permalink
def get_absolute_url(self):
- return ('catalogue.views.book_detail', [self.slug])
+ return ('catalogue.views.book_detail', [self.urlid()])
@property
def name(self):
return self.title
def book_tag_slug(self):
- return ('l-' + self.slug)[:120]
+ stem = 'l-' + self.slug
+ if self.language != settings.CATALOGUE_DEFAULT_LANGUAGE:
+ return stem[:116] + ' ' + self.language
+ else:
+ return stem[:120]
def book_tag(self):
slug = self.book_tag_slug()
@@ -399,7 +479,7 @@ class Book(models.Model):
formats = []
# files generated during publication
if self.has_media("html"):
- formats.append(u'%s' % (reverse('book_text', kwargs={'slug': self.slug}), _('Read online')))
+ formats.append(u'%s' % (reverse('book_text', [self.fileid()]), _('Read online')))
if self.has_media("pdf"):
formats.append(u'PDF' % self.get_media('pdf').url)
if self.has_media("mobi"):
@@ -459,46 +539,52 @@ class Book(models.Model):
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.utils import ORMDocProvider
+ from librarian.parser import WLDocument
- """
- from librarian import pdf
- from tempfile import NamedTemporaryFile
- import os
-
- try:
- pdf_file = NamedTemporaryFile(delete=False)
- pdf.transform(ORMDocProvider(self),
- file_path=str(self.xml_file.path),
- output_file=pdf_file,
- )
+ return WLDocument.from_file(self.xml_file.path,
+ provider=ORMDocProvider(self),
+ parse_dublincore=parse_dublincore)
- self.pdf_file.save('%s.pdf' % self.slug, File(open(pdf_file.name)))
- finally:
- unlink(pdf_file.name)
+ 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
+
+ pdf = self.wldocument().as_pdf(customizations=customizations)
+
+ 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.fileid(),
+ File(open(pdf.get_filename())))
+ self.pdf_file = current_self.pdf_file
+ else:
+ print "saving %s" % file_name
+ print "to: %s" % DefaultStorage().path(file_name)
+ DefaultStorage().save(file_name, File(open(pdf.get_filename())))
- # remove zip with all pdf files
+ # remove cached downloadables
remove_zip(settings.ALL_PDF_ZIP)
+ for customized_pdf in get_existing_customized_pdf(self):
+ unlink(customized_pdf)
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.fileid(), File(open(mobi.get_filename())))
# remove zip with all mobi files
remove_zip(settings.ALL_MOBI_ZIP)
@@ -508,19 +594,18 @@ class Book(models.Model):
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 django.core.files import File
+ from catalogue.utils import remove_zip
if self.parent:
# don't need an epub
return
- epub_file = StringIO()
+ epub = self.wldocument().as_epub()
+
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()
+ epub.transform(ORMDocProvider(self), self.fileid(), output_file=epub_file)
+ self.epub_file.save('%s.epub' % self.fileid(), File(open(epub.get_filename())))
except NoDublinCore:
pass
@@ -537,26 +622,26 @@ class Book(models.Model):
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.fileid(), 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.fileid(),
+ ContentFile(html_output.get_string()))
# get ancestor l-tags for adding to new fragments
ancestor_tags = []
@@ -606,7 +691,7 @@ class Book(models.Model):
def pretty_file_name(book):
return "%s/%s.%s" % (
b.get_extra_info_value()['author'],
- b.slug,
+ b.fileid(),
format_)
field_name = "%s_file" % format_
@@ -620,11 +705,14 @@ class Book(models.Model):
def zip_audiobooks(self):
bm = BookMedia.objects.filter(book=self, type='mp3')
paths = map(lambda bm: (None, bm.file.path), bm)
- result = create_zip.delay(paths, self.slug)
+ result = create_zip.delay(paths, self.fileid())
return result.wait()
@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)
@@ -640,29 +728,34 @@ class Book(models.Model):
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
+ from slughifi import slughifi
+ 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, language=part_url.language))
except Book.DoesNotExist, e:
- raise Book.DoesNotExist(_('Book with slug = "%s" does not exist.') % slug)
+ raise Book.DoesNotExist(_('Book "%s/%s" does not exist.') %
+ (part_url.slug, part_url.language))
# Read book metadata
- book_base, book_slug = book_info.url.rsplit('/', 1)
+ book_slug = book_info.url.slug
+ language = book_info.language
if re.search(r'[^a-zA-Z0-9-]', book_slug):
raise ValueError('Invalid characters in slug')
- book, created = Book.objects.get_or_create(slug=book_slug)
+ book, created = Book.objects.get_or_create(slug=book_slug, language=language)
if created:
book_shelves = []
else:
if not overwrite:
- raise Book.AlreadyExists(_('Book %s already exists') % book_slug)
+ raise Book.AlreadyExists(_('Book %s/%s already exists') % (
+ book_slug, language))
# Save shelves for this book
book_shelves = list(book.tags.filter(category='set'))
@@ -734,6 +827,7 @@ class Book(models.Model):
book.reset_tag_counter()
book.reset_theme_counter()
+ cls.published.send(sender=book)
return book
def reset_tag_counter(self):
@@ -827,6 +921,57 @@ class Book(models.Model):
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', 'language')
+ 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))
@@ -862,7 +1007,7 @@ 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' % (self.book.get_html_url(), self.anchor)
def reset_short_html(self):
if self.id is None:
@@ -889,20 +1034,6 @@ class Fragment(models.Model):
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 Meta:
- ordering = ('-time','-slug', '-type')
- verbose_name = _('file record')
- verbose_name_plural = _('file records')
-
- def __unicode__(self):
- return "%s %s.%s" % (self.sha1, self.slug, self.type)
-
###########
#
# SIGNALS