X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/c661073dd0969caa9a47a225f3d3fae767295c3d..c2dba41b331a28fb7de510ca0e79d00e95bec99b:/apps/catalogue/models/book.py?ds=sidebyside
diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index 4b50fc9fc..eab6b2de3 100644
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -3,7 +3,7 @@
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
import re
-from django.conf import settings
+from django.conf import settings as settings
from django.core.cache import get_cache
from django.db import models
from django.db.models import permalink
@@ -11,8 +11,11 @@ import django.dispatch
from django.utils.datastructures import SortedDict
from django.utils.translation import ugettext_lazy as _
import jsonfield
+from catalogue import constants
+from catalogue.fields import EbookField
from catalogue.models import Tag, Fragment, BookMedia
-from catalogue.utils import create_zip, split_tags, truncate_html_words, book_upload_path
+from catalogue.utils import create_zip, split_tags, book_upload_path
+from catalogue import app_settings
from catalogue import tasks
from newtagging import managers
@@ -28,7 +31,7 @@ class Book(models.Model):
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)
+ default=app_settings.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)
@@ -38,12 +41,13 @@ class Book(models.Model):
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', 'fb2', 'txt']
+ cover = EbookField('cover', _('cover'),
+ upload_to=book_upload_path('jpg'), null=True, blank=True)
+ ebook_formats = constants.EBOOK_FORMATS
formats = ebook_formats + ['html', 'xml']
- parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
+ parent = models.ForeignKey('self', blank=True, null=True,
+ related_name='children')
_related_info = jsonfield.JSONField(blank=True, null=True, editable=False)
@@ -82,6 +86,11 @@ class Book(models.Model):
def get_absolute_url(self):
return ('catalogue.views.book_detail', [self.slug])
+ @staticmethod
+ @permalink
+ def create_url(slug):
+ return ('catalogue.views.book_detail', [slug])
+
@property
def name(self):
return self.title
@@ -152,137 +161,53 @@ class Book(models.Model):
has_daisy_file.short_description = 'DAISY'
has_daisy_file.boolean = True
- def wldocument(self, parse_dublincore=True):
+ def wldocument(self, parse_dublincore=True, inherit=True):
from catalogue.import_utils import ORMDocProvider
from librarian.parser import WLDocument
+ if inherit and self.parent:
+ meta_fallbacks = self.parent.cover_info()
+ else:
+ meta_fallbacks = None
+
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 django.core.files.base import ContentFile
- from librarian.cover import WLCover
-
- if book_info is None:
- book_info = self.wldocument().book_info
-
- cover = WLCover(book_info).image()
- imgstr = StringIO()
- cover.save(imgstr, 'png')
- self.cover.save(None, ContentFile(imgstr.getvalue()))
-
- def build_html(self):
- from django.core.files.base import ContentFile
- from slughifi import slughifi
- from sortify import sortify
- from librarian import html
-
- 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 = 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 = sortify(theme_name.lower())
- tag.save()
- themes.append(tag)
- if not themes:
- continue
-
- text = fragment.to_string()
- short_text = truncate_html_words(text, 15)
- if 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(meta_tags + themes + [book_tag] + ancestor_tags)
- self.save()
- self.html_built.send(sender=self)
- return True
- return False
-
- # Thin wrappers for builder tasks
- def build_pdf(self, *args, **kwargs):
- """(Re)builds PDF."""
- return tasks.build_pdf.delay(self.pk, *args, **kwargs)
- def build_epub(self, *args, **kwargs):
- """(Re)builds EPUB."""
- return tasks.build_epub.delay(self.pk, *args, **kwargs)
- def build_mobi(self, *args, **kwargs):
- """(Re)builds MOBI."""
- return tasks.build_mobi.delay(self.pk, *args, **kwargs)
- def build_fb2(self, *args, **kwargs):
- """(Re)build FB2"""
- return tasks.build_fb2.delay(self.pk, *args, **kwargs)
- def build_txt(self, *args, **kwargs):
- """(Re)builds TXT."""
- return tasks.build_txt.delay(self.pk, *args, **kwargs)
+ parse_dublincore=parse_dublincore,
+ meta_fallbacks=meta_fallbacks)
@staticmethod
def zip_format(format_):
def pretty_file_name(book):
return "%s/%s.%s" % (
- b.extra_info['author'],
- b.slug,
+ book.extra_info['author'],
+ book.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.iterator()]
- return create_zip(paths,
- getattr(settings, "ALL_%s_ZIP" % format_.upper()))
+ return create_zip(paths, app_settings.FORMAT_ZIPS[format_])
def zip_audiobooks(self, format_):
bm = BookMedia.objects.filter(book=self, type=format_)
paths = map(lambda bm: (None, bm.file.path), bm)
return create_zip(paths, "%s_%s" % (self.slug, format_))
- def search_index(self, book_info=None, reuse_index=False, index_tags=True):
+ def search_index(self, book_info=None, index=None, index_tags=True, commit=True):
import search
- if reuse_index:
- idx = search.ReusableIndex()
- else:
- idx = search.Index()
-
- idx.open()
+ if index is None:
+ index = search.Index()
try:
- idx.index_book(self, book_info)
+ index.index_book(self, book_info)
if index_tags:
- idx.index_tags()
- finally:
- idx.close()
+ index.index_tags()
+ if commit:
+ index.index.commit()
+ except Exception, e:
+ index.index.rollback()
+ raise e
+
@classmethod
def from_xml_file(cls, xml_file, **kwargs):
@@ -302,8 +227,11 @@ class Book(models.Model):
@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, build_fb2=True,
- search_index=True, search_index_tags=True, search_index_reuse=False):
+ dont_build=None, search_index=True,
+ search_index_tags=True):
+ if dont_build is None:
+ dont_build = set()
+ dont_build = set.union(set(dont_build), set(app_settings.DONT_BUILD))
# check for parts before we do anything
children = []
@@ -315,7 +243,6 @@ class Book(models.Model):
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):
@@ -324,12 +251,17 @@ class Book(models.Model):
if created:
book_shelves = []
+ old_cover = None
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'))
+ old_cover = book.cover_info()
+
+ # Save XML file
+ book.xml_file.save('%s.xml' % book.slug, raw_file, save=False)
book.language = book_info.language
book.title = book_info.title
@@ -344,64 +276,120 @@ class Book(models.Model):
book.tags = set(meta_tags + book_shelves)
- book_tag = book.book_tag()
-
+ cover_changed = old_cover != book.cover_info()
+ obsolete_children = set(b for b in book.children.all()
+ if b not in children)
+ notify_cover_changed = []
for n, child_book in enumerate(children):
+ new_child = child_book.parent != book
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)
+ if new_child or cover_changed:
+ notify_cover_changed.append(child_book)
+ # Disown unfaithful children and let them cope on their own.
+ for child in obsolete_children:
+ child.parent = None
+ child.parent_number = 0
+ child.save()
+ tasks.fix_tree_tags.delay(child)
+ if old_cover:
+ notify_cover_changed.append(child)
# delete old fragments when overwriting
book.fragments.all().delete()
+ # Build HTML, fix the tree tags, build cover.
+ has_own_text = bool(book.html_file.build())
+ tasks.fix_tree_tags.delay(book)
+ if 'cover' not in dont_build:
+ book.cover.build_delay()
+
+ # No saves behind this point.
+
+ if has_own_text:
+ for format_ in constants.EBOOK_FORMATS_WITHOUT_CHILDREN:
+ if format_ not in dont_build:
+ getattr(book, '%s_file' % format_).build_delay()
+ for format_ in constants.EBOOK_FORMATS_WITH_CHILDREN:
+ if format_ not in dont_build:
+ getattr(book, '%s_file' % format_).build_delay()
- 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_SEARCH_INDEX and search_index:
+ tasks.index_book.delay(book.id, book_info=book_info, index_tags=search_index_tags)
- if not settings.NO_BUILD_PDF and build_pdf:
- book.build_pdf()
+ for child in notify_cover_changed:
+ child.parent_cover_changed()
- if not settings.NO_BUILD_MOBI and build_mobi:
- book.build_mobi()
+ cls.published.send(sender=book)
+ return book
- if not settings.NO_BUILD_FB2 and build_fb2:
- book.build_fb2()
+ def fix_tree_tags(self):
+ """Fixes the l-tags on the book's subtree.
- if not settings.NO_SEARCH_INDEX and search_index:
- book.search_index(index_tags=search_index_tags, reuse_index=search_index_reuse)
- #index_book.delay(book.id, book_info)
-
- book_descendants = list(book.children.all())
- descendants_tags = set()
- # add l-tag to descendants and their fragments
- 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]
- child_book.save()
- for fragment in child_book.fragments.all().iterator():
- fragment.tags = set(list(fragment.tags) + [book_tag])
- book_descendants += list(child_book.children.all())
-
- for tag in descendants_tags:
+ Makes sure that:
+ * the book has its parents book-tags,
+ * its fragments have the book's and its parents book-tags,
+ * runs those for every child book too,
+ * touches all relevant tags,
+ * resets tag and theme counter on the book and its ancestry.
+ """
+ def fix_subtree(book, parent_tags):
+ affected_tags = set(book.tags)
+ book.tags = list(book.tags.exclude(category='book')) + parent_tags
+ sub_parent_tags = parent_tags + [book.book_tag()]
+ for frag in book.fragments.all():
+ affected_tags.update(frag.tags)
+ frag.tags = list(frag.tags.exclude(category='book')
+ ) + sub_parent_tags
+ for child in book.children.all():
+ affected_tags.update(fix_subtree(child, sub_parent_tags))
+ return affected_tags
+
+ parent_tags = []
+ parent = self.parent
+ while parent is not None:
+ parent_tags.append(parent.book_tag())
+ parent = parent.parent
+
+ affected_tags = fix_subtree(self, parent_tags)
+ for tag in affected_tags:
tasks.touch_tag(tag)
- book.save()
+ book = self
+ while book is not None:
+ book.reset_tag_counter()
+ book.reset_theme_counter()
+ book = book.parent
- # refresh cache
- book.reset_tag_counter()
- book.reset_theme_counter()
+ def cover_info(self, inherit=True):
+ """Returns a dictionary to serve as fallback for BookInfo.
- cls.published.send(sender=book)
- return book
+ For now, the only thing inherited is the cover image.
+ """
+ need = False
+ info = {}
+ for field in ('cover_url', 'cover_by', 'cover_source'):
+ val = self.extra_info.get(field)
+ if val:
+ info[field] = val
+ else:
+ need = True
+ if inherit and need and self.parent is not None:
+ parent_info = self.parent.cover_info()
+ parent_info.update(info)
+ info = parent_info
+ return info
+
+ def parent_cover_changed(self):
+ """Called when parent book's cover image is changed."""
+ if not self.cover_info(inherit=False):
+ if 'cover' not in app_settings.DONT_BUILD:
+ self.cover.build_delay()
+ for format_ in constants.EBOOK_FORMATS_WITH_COVERS:
+ if format_ not in app_settings.DONT_BUILD:
+ getattr(self, '%s_file' % format_).build_delay()
+ for child in self.children.all():
+ child.parent_cover_changed()
def related_info(self):
"""Keeps info about related objects (tags, media) in cache field."""
@@ -498,19 +486,19 @@ class Book(models.Model):
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))
+ rel_info = book.related_info()
+ names = [(name, Tag.create_url('author', slug))
+ for name, slug in rel_info['tags']['author']]
+ if 'parents' in rel_info:
+ books = [(name, Book.create_url(slug))
+ for name, slug in rel_info['parents']]
+ names.extend(reversed(books))
+ names.append((self.title, self.get_absolute_url()))
if html_links:
- names = ['%s' % (tag.get_absolute_url(), tag.name) for tag in names]
+ names = ['%s' % (tag[1], tag[0]) for tag in names]
else:
- names = [tag.name for tag in names]
-
+ names = [tag[0] for tag in names]
return ', '.join(names)
@classmethod
@@ -595,20 +583,9 @@ class Book(models.Model):
return None
-def _has_factory(ftype):
- has = lambda self: bool(getattr(self, "%s_file" % ftype))
- has.short_description = ftype.upper()
- has.__doc__ = None
- 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))
+for format_ in Book.formats:
+ field_name = "%s_file" % format_
+ EbookField(format_, _("%s file" % format_.upper()),
+ upload_to=book_upload_path(format_),
+ blank=True, default='').contribute_to_class(Book, field_name)