X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/e0164e6ca0588a270b77d892702e54ef62c31de2..b9bf77dc8f2d4b1b64bd7a29730bec3e3f885a6e:/apps/catalogue/models.py
diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index 2e20717fc..afc241ddd 100644
--- a/apps/catalogue/models.py
+++ b/apps/catalogue/models.py
@@ -8,6 +8,7 @@ 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.template.loader import render_to_string
@@ -24,7 +25,8 @@ from newtagging import managers
from catalogue.fields import JSONField, OverwritingFileField
from catalogue.utils import create_zip
from shutil import copy
-
+from glob import glob
+import re
from os import path
@@ -175,7 +177,7 @@ class Tag(TagBase):
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':
@@ -194,6 +196,29 @@ 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.fileid(), 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.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):
type = models.CharField(_('type'), choices=MEDIA_FORMATS, max_length="100")
name = models.CharField(_('name'), max_length="100")
@@ -227,7 +252,7 @@ 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())
@@ -296,7 +321,9 @@ 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)
@@ -316,10 +343,14 @@ class Book(models.Model):
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')
@@ -327,6 +358,42 @@ 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
@@ -341,14 +408,18 @@ 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()
@@ -410,7 +481,7 @@ 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"):
@@ -470,56 +541,53 @@ class Book(models.Model):
has_daisy_file.short_description = 'DAISY'
has_daisy_file.boolean = True
+ def wldocument(self, parse_dublincore=True):
+ from catalogue.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_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 tempfile import NamedTemporaryFile
from os import unlink
from django.core.files import File
- from librarian import pdf
- from catalogue.utils import ORMDocProvider, remove_zip
- from django.core.files.move import file_move_safe
+ 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,
- customizations=customizations
- )
-
- if file_name is None:
- self.pdf_file.save('%s.pdf' % self.slug, File(open(pdf_file.name)))
- else:
- copy(pdf_file.name, path.join(settings.MEDIA_ROOT, get_dynamic_path(None, file_name, ext='pdf')))
- finally:
- unlink(pdf_file.name)
+ 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
- # 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 tempfile import NamedTemporaryFile
- from os import unlink
from django.core.files import File
- from librarian import mobi
- from catalogue.utils import ORMDocProvider, remove_zip
+ 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)
@@ -529,21 +597,18 @@ 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 librarian import epub, NoDublinCore
- from catalogue.utils import ORMDocProvider, remove_zip
+ 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
@@ -560,19 +625,15 @@ 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 import File
+ from django.core.files.base import ContentFile
from slughifi import slughifi
from librarian import html
@@ -580,9 +641,10 @@ class Book(models.Model):
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 = []
@@ -632,7 +694,7 @@ 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_
@@ -646,7 +708,7 @@ 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
@@ -676,24 +738,27 @@ class Book(models.Model):
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'))
@@ -868,7 +933,8 @@ class Book(models.Model):
"""
books_by_parent = {}
- books = cls.objects.all().order_by('parent_number', 'sort_key').only('title', 'parent', 'slug')
+ 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))
@@ -944,7 +1010,7 @@ 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:
@@ -971,20 +1037,6 @@ 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