X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/a1ea2966e73e96e9ea5a192320353e8863687b41..80d3980873a2c07121f466c187de92be1cea8415:/apps/catalogue/models.py
diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index baf00a122..c1290fbcf 100644
--- a/apps/catalogue/models.py
+++ b/apps/catalogue/models.py
@@ -2,16 +2,18 @@
# 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
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.template.defaultfilters import slugify
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
@@ -21,6 +23,8 @@ from catalogue.fields import JSONField
from librarian import dcparser, html, epub, NoDublinCore
from mutagen import id3
+from slughifi import slughifi
+from sortify import sortify
TAG_CATEGORIES = (
@@ -59,10 +63,13 @@ class Tag(TagBase):
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)
+
categories_rev = {
'autor': 'author',
'epoka': 'epoch',
@@ -155,26 +162,37 @@ class Tag(TagBase):
# TODO: why is this hard-coded ?
-def book_upload_path(ext=None):
+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:
- ext = media.type
+ if media.type == 'daisy':
+ ext = 'daisy.zip'
+ else:
+ ext = media.type
if not media.name:
- name = slugify(filename.split(".")[0])
+ name = slughifi(filename.split(".")[0])
else:
- name = slugify(media.name)
- return 'lektura/%s.%s' % (name, ext)
+ name = slughifi(media.name)
+ return 'lektura/%s.%s' % (name[:maxlen-len('lektura/.%s' % 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", blank=True)
- file = models.FileField(_('file'), upload_to=book_upload_path(), blank=True)
+ name = models.CharField(_('name'), max_length="100")
+ file = models.FileField(_('file'), upload_to=book_upload_path())
uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False)
extra_info = JSONField(_('extra information'), default='{}')
+ def book_count(self):
+ return self.book_set.count()
+ book_count.short_description = _('book count')
+
+ def books(self):
+ return mark_safe('
'.join("%s" % (reverse('admin:catalogue_book_change', args=[b.id]), b.title) for b in self.book_set.all()))
+ books.short_description = _('books')
+
def __unicode__(self):
return "%s (%s)" % (self.name, self.file.name.split("/")[-1])
@@ -183,14 +201,14 @@ class BookMedia(models.Model):
verbose_name = _('book media')
verbose_name_plural = _('book media')
- def save(self, force_insert=False, force_update=False):
- media = super(BookMedia, self).save(force_insert, force_update)
+ def save(self, force_insert=False, force_update=False, **kwargs):
+ media = super(BookMedia, self).save(force_insert, force_update, **kwargs)
if self.type == 'mp3':
file = self.file
extra_info = self.get_extra_info_value()
extra_info.update(self.get_mp3_info())
self.set_extra_info_value(extra_info)
- media = super(BookMedia, self).save(force_insert, force_update)
+ media = super(BookMedia, self).save(force_insert, force_update, **kwargs)
return media
def get_mp3_info(self):
@@ -206,12 +224,14 @@ 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)
description = models.TextField(_('description'), blank=True)
- created_at = models.DateTimeField(_('creation date'), auto_now_add=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)
_short_html = models.TextField(_('short HTML'), editable=False)
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
@@ -235,7 +255,7 @@ class Book(models.Model):
pass
class Meta:
- ordering = ('title',)
+ ordering = ('sort_key',)
verbose_name = _('book')
verbose_name_plural = _('books')
@@ -243,6 +263,8 @@ class Book(models.Model):
return self.title
def save(self, force_insert=False, force_update=False, reset_short_html=True, **kwargs):
+ self.sort_key = sortify(self.title)
+
if reset_short_html:
# Reset _short_html during save
update = {}
@@ -313,7 +335,7 @@ class Book(models.Model):
elif type == "html":
return self.html_file
elif type == "epub":
- return self.html_file
+ return self.epub_file
elif type == "txt":
return self.txt_file
elif type == "pdf":
@@ -452,8 +474,7 @@ class Book(models.Model):
epub_file = StringIO()
try:
epub.transform(BookImportDocProvider(self), self.slug, output_file=epub_file)
- self.epub_file.save('%s.epub' % self.slug, ContentFile(epub_file.getvalue()), save=False)
- self.save()
+ self.epub_file.save('%s.epub' % self.slug, ContentFile(epub_file.getvalue()))
FileRecord(slug=self.slug, type='epub', sha1=sha1(epub_file.getvalue()).hexdigest()).save()
except NoDublinCore:
pass
@@ -467,9 +488,19 @@ class Book(models.Model):
child_book.save()
book_descendants += list(child_book.children.all())
+ 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()))
+ self.save()
+
@classmethod
- def from_xml_file(cls, xml_file, overwrite=False, build_epub=True):
+ def from_xml_file(cls, xml_file, **kwargs):
# use librarian to parse meta-data
book_info = dcparser.parse(xml_file)
@@ -477,14 +508,14 @@ class Book(models.Model):
xml_file = File(open(xml_file))
try:
- return cls.from_text_and_meta(xml_file, book_info, overwrite, build_epub=build_epub)
+ 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):
+ def from_text_and_meta(cls, raw_file, book_info, overwrite=False, build_epub=True, build_txt=True):
+ import re
from tempfile import NamedTemporaryFile
- from slughifi import slughifi
from markupstring import MarkupString
from django.core.files.storage import default_storage
@@ -501,6 +532,8 @@ class Book(models.Model):
# Read book metadata
book_base, book_slug = book_info.url.rsplit('/', 1)
+ 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)
if created:
@@ -531,11 +564,11 @@ class Book(models.Model):
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)
- book.tags = book_tags + book_shelves
+ book.tags = set(book_tags + book_shelves)
book_tag = book.book_tag()
@@ -591,6 +624,9 @@ class Book(models.Model):
new_fragment.save()
new_fragment.tags = set(book_tags + themes + [book_tag] + ancestor_tags)
+ 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()
@@ -674,6 +710,24 @@ class Book(models.Model):
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()
@@ -720,10 +774,17 @@ class FileRecord(models.Model):
def __unicode__(self):
return "%s %s.%s" % (self.sha1, self.slug, self.type)
+###########
+#
+# 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
+ 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 \
@@ -737,3 +798,24 @@ def _tags_updated_handler(sender, affected_tags, **kwargs):
sender.book.reset_theme_counter()
tags_updated.connect(_tags_updated_handler)
+
+def _m2m_changed_handler(sender, instance, action, reverse, pk_set, **kwargs):
+ """ refresh all the short_html stuff on BookMedia delete """
+ if sender == Book.medias.through and reverse and action == 'pre_clear':
+ for book in instance.book_set.all():
+ book.save()
+m2m_changed.connect(_m2m_changed_handler)
+
+def _pre_delete_handler(sender, instance, **kwargs):
+ """ explicitly clear m2m, so that Books can be refreshed """
+ if sender == BookMedia:
+ instance.book_set.clear()
+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:
+ for book in instance.book_set.all():
+ book.save()
+post_save.connect(_post_save_handler)
+