X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/ac6111b68183ba7da48252eb0f7389b24ede20a9..2c0eb88678075e583641f4d1debe3bec2bfd0bf1:/apps/catalogue/models/book.py?ds=inline diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py index 5bc1e1021..3c32481f9 100644 --- a/apps/catalogue/models/book.py +++ b/apps/catalogue/models/book.py @@ -2,31 +2,47 @@ # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later. # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # +from collections import OrderedDict +from random import randint import re -from django.conf import settings as settings -from django.core.cache import get_cache -from django.db import models +from django.conf import settings +from django.db import connection, models, transaction from django.db.models import permalink import django.dispatch -from django.utils.datastructures import SortedDict +from django.contrib.contenttypes.fields import GenericRelation +from django.core.urlresolvers import reverse from django.utils.translation import ugettext_lazy as _ import jsonfield +from fnpdjango.storage import BofhFileSystemStorage +from ssify import flush_ssi_includes +from newtagging import managers from catalogue import constants from catalogue.fields import EbookField from catalogue.models import Tag, Fragment, BookMedia -from catalogue.utils import create_zip, split_tags, book_upload_path +from catalogue.utils import create_zip from catalogue import app_settings from catalogue import tasks -from newtagging import managers +bofh_storage = BofhFileSystemStorage() + + +def _cover_upload_to(i, n): + return 'book/cover/%s.jpg' % i.slug -permanent_cache = get_cache('permanent') +def _cover_thumb_upload_to(i, n): + return 'book/cover_thumb/%s.jpg' % i.slug, + +def _ebook_upload_to(upload_path): + def _upload_to(i, n): + return upload_path % i.slug + return _upload_to class Book(models.Model): """Represents a book imported from WL-XML.""" title = models.CharField(_('title'), max_length=120) sort_key = models.CharField(_('sort key'), max_length=120, db_index=True, editable=False) + sort_key_author = models.CharField(_('sort key by author'), max_length=120, db_index=True, editable=False, default=u'') slug = models.SlugField(_('slug'), max_length=120, db_index=True, unique=True) common_slug = models.SlugField(_('slug'), max_length=120, db_index=True) @@ -36,28 +52,38 @@ class Book(models.Model): 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.JSONField(_('extra information'), default='{}') + extra_info = jsonfield.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 cover = EbookField('cover', _('cover'), - upload_to=book_upload_path('jpg'), null=True, blank=True) + null=True, blank=True, + upload_to=_cover_upload_to, + storage=bofh_storage, max_length=255) + # Cleaner version of cover for thumbs + cover_thumb = EbookField('cover_thumb', _('cover thumbnail'), + null=True, blank=True, + upload_to=_cover_thumb_upload_to, + max_length=255) ebook_formats = constants.EBOOK_FORMATS formats = ebook_formats + ['html', 'xml'] parent = models.ForeignKey('self', blank=True, null=True, related_name='children') - - _related_info = jsonfield.JSONField(blank=True, null=True, editable=False) + ancestor = models.ManyToManyField('self', blank=True, null=True, + editable=False, related_name='descendant', symmetrical=False) objects = models.Manager() tagged = managers.ModelTaggedItemManager(Tag) tags = managers.TagDescriptor(Tag) + tag_relations = GenericRelation(Tag.intermediary_table_model) html_built = django.dispatch.Signal() published = django.dispatch.Signal() + short_html_url_name = 'catalogue_book_short' + class AlreadyExists(Exception): pass @@ -70,15 +96,19 @@ class Book(models.Model): def __unicode__(self): return self.title - def save(self, force_insert=False, force_update=False, reset_short_html=True, **kwargs): + def save(self, force_insert=False, force_update=False, **kwargs): from sortify import sortify self.sort_key = sortify(self.title) + self.title = unicode(self.title) # ??? - ret = super(Book, self).save(force_insert, force_update) + try: + author = self.tags.filter(category='author')[0].sort_key + except IndexError: + author = u'' + self.sort_key_author = author - if reset_short_html: - self.reset_short_html() + ret = super(Book, self).save(force_insert, force_update, **kwargs) return ret @@ -86,21 +116,20 @@ 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 - def book_tag_slug(self): - return ('l-' + self.slug)[:120] + def language_code(self): + return constants.LANGUAGES_3TO2.get(self.language, self.language) - def book_tag(self): - slug = self.book_tag_slug() - book_tag, created = Tag.objects.get_or_create(slug=slug, category='book') - if created: - book_tag.name = self.title[:50] - book_tag.sort_key = self.title.lower() - book_tag.save() - return book_tag + def language_name(self): + return dict(settings.LANGUAGES).get(self.language_code(), "") def has_media(self, type_): if type_ in Book.formats: @@ -112,7 +141,7 @@ class Book(models.Model): if self.has_media(type_): if type_ in Book.formats: return getattr(self, "%s_file" % type_) - else: + else: return self.media.filter(type=type_) else: return None @@ -124,16 +153,7 @@ class Book(models.Model): def get_ogg(self): return self.get_media("ogg") def get_daisy(self): - return self.get_media("daisy") - - def reset_short_html(self): - if self.id is None: - return - - type(self).objects.filter(pk=self.pk).update(_related_info=None) - # Fragment.short_html relies on book's tags, so reset it here too - for fragm in self.fragments.all().iterator(): - fragm.reset_short_html() + return self.get_media("daisy") def has_description(self): return len(self.description) > 0 @@ -190,13 +210,13 @@ class Book(models.Model): return create_zip(paths, "%s_%s" % (self.slug, format_)) def search_index(self, book_info=None, index=None, index_tags=True, commit=True): - import search if index is None: - index = search.Index() + from search.index import Index + index = Index() try: index.index_book(self, book_info) if index_tags: - idx.index_tags() + index.index_tags() if commit: index.index.commit() except Exception, e: @@ -287,21 +307,21 @@ class Book(models.Model): 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) + cls.repopulate_ancestors() + + # No saves beyond this point. + + # Build cover. if 'cover' not in dont_build: book.cover.build_delay() - - # No saves behind this point. + book.cover_thumb.build_delay() - if has_own_text: + # Build HTML and ebooks. + book.html_file.build_delay() + if not children: for format_ in constants.EBOOK_FORMATS_WITHOUT_CHILDREN: if format_ not in dont_build: getattr(book, '%s_file' % format_).build_delay() @@ -315,46 +335,59 @@ class Book(models.Model): for child in notify_cover_changed: child.parent_cover_changed() - cls.published.send(sender=book) + cls.published.send(sender=cls, instance=book) return book - def fix_tree_tags(self): - """Fixes the l-tags on the book's subtree. - - 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 = self - while book is not None: - book.reset_tag_counter() - book.reset_theme_counter() - book = book.parent + @classmethod + def repopulate_ancestors(cls): + """Fixes the ancestry cache.""" + # TODO: table names + with transaction.atomic(): + cursor = connection.cursor() + if connection.vendor == 'postgres': + cursor.execute("TRUNCATE catalogue_book_ancestor") + cursor.execute(""" + WITH RECURSIVE ancestry AS ( + SELECT book.id, book.parent_id + FROM catalogue_book AS book + WHERE book.parent_id IS NOT NULL + UNION + SELECT ancestor.id, book.parent_id + FROM ancestry AS ancestor, catalogue_book AS book + WHERE ancestor.parent_id = book.id + AND book.parent_id IS NOT NULL + ) + INSERT INTO catalogue_book_ancestor + (from_book_id, to_book_id) + SELECT id, parent_id + FROM ancestry + ORDER BY id; + """) + else: + cursor.execute("DELETE FROM catalogue_book_ancestor") + for b in cls.objects.exclude(parent=None): + parent = b.parent + while parent is not None: + b.ancestor.add(parent) + parent = parent.parent + + def flush_includes(self, languages=True): + if not languages: + return + if languages is True: + languages = [lc for (lc, _ln) in settings.LANGUAGES] + flush_ssi_includes([ + template % (self.pk, lang) + for template in [ + '/katalog/b/%d/mini.%s.html', + '/katalog/b/%d/mini_nolink.%s.html', + '/katalog/b/%d/short.%s.html', + '/katalog/b/%d/wide.%s.html', + '/api/include/book/%d.%s.json', + '/api/include/book/%d.%s.xml', + ] + for lang in languages + ]) def cover_info(self, inherit=True): """Returns a dictionary to serve as fallback for BookInfo. @@ -375,125 +408,45 @@ class Book(models.Model): info = parent_info return info + def related_themes(self): + return Tag.objects.usage_for_queryset( + Fragment.objects.filter(models.Q(book=self) | models.Q(book__ancestor=self)), + counts=True).filter(category='theme') + 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() + self.cover_thumb.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.""" - if self._related_info is not None: - return self._related_info - else: - rel = {'tags': {}, 'media': {}} - - tags = self.tags.filter(category__in=( - 'author', 'kind', 'genre', 'epoch')) - tags = split_tags(tags) - for category in tags: - rel['tags'][category] = [ - (t.name, t.slug) for t in tags[category]] - - for media_format in BookMedia.formats: - rel['media'][media_format] = self.has_media(media_format) - - book = self - parents = [] - while book.parent: - parents.append((book.parent.title, book.parent.slug)) - book = book.parent - parents = parents[::-1] - if parents: - rel['parents'] = parents - - if self.pk: - type(self).objects.filter(pk=self.pk).update(_related_info=rel) - return rel - - def related_themes(self): - theme_counter = self.theme_counter - book_themes = list(Tag.objects.filter(pk__in=theme_counter.keys())) - for tag in book_themes: - tag.count = theme_counter[tag.pk] - return book_themes - - def reset_tag_counter(self): - if self.id is None: - return - - cache_key = "Book.tag_counter/%d" % self.id - permanent_cache.delete(cache_key) - if self.parent: - self.parent.reset_tag_counter() - - @property - def tag_counter(self): - if self.id: - cache_key = "Book.tag_counter/%d" % self.id - tags = permanent_cache.get(cache_key) - else: - tags = None - - if tags is None: - tags = {} - for child in self.children.all().order_by().iterator(): - 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().iterator(): - tags[tag.pk] = 1 - - if self.id: - permanent_cache.set(cache_key, tags) - return tags - - def reset_theme_counter(self): - if self.id is None: - return - - cache_key = "Book.theme_counter/%d" % self.id - permanent_cache.delete(cache_key) - if self.parent: - self.parent.reset_theme_counter() - - @property - def theme_counter(self): - if self.id: - cache_key = "Book.theme_counter/%d" % self.id - tags = permanent_cache.get(cache_key) - else: - tags = None - - if tags is None: - tags = {} - for fragment in Fragment.tagged.with_any([self.book_tag()]).order_by().iterator(): - for tag in fragment.tags.filter(category='theme').order_by().iterator(): - tags[tag.pk] = tags.get(tag.pk, 0) + 1 + def other_versions(self): + """Find other versions (i.e. in other languages) of the book.""" + return type(self).objects.filter(common_slug=self.common_slug).exclude(pk=self.pk) - if self.id: - permanent_cache.set(cache_key, tags) - return tags + def parents(self): + books = [] + parent = self.parent + while parent is not None: + books.insert(0, parent) + parent = parent.parent + return books 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)) + names = [(tag.name, tag.get_absolute_url()) + for tag in self.tags.filter(category='author')] + books = self.parents() + [self] + names.extend([(b.title, b.get_absolute_url()) for b in books]) 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 @@ -504,16 +457,8 @@ class Book(models.Model): 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.iterator()]) - descendants_keys = [book.pk for book in cls.tagged.with_any(l_tags).iterator()] - if descendants_keys: - objects = objects.exclude(pk__in=descendants_keys) - - return objects + return objects.exclude(ancestor__in=objects) @classmethod def book_list(cls, filter=None): @@ -528,7 +473,7 @@ class Book(models.Model): 'title', 'parent', 'slug') if filter: books = books.filter(filter).distinct() - + book_ids = set(b['pk'] for b in books.values("pk").iterator()) for book in books.iterator(): parent = book.parent_id @@ -540,11 +485,11 @@ class Book(models.Model): books_by_parent.setdefault(book.parent_id, []).append(book) orphans = [] - books_by_author = SortedDict() + books_by_author = OrderedDict() for tag in Tag.objects.filter(category='author').iterator(): books_by_author[tag] = [] - for book in books_by_parent.get(None,()): + for book in books_by_parent.get(None, ()): authors = list(book.tags.filter(category='author')) if authors: for author in authors: @@ -555,6 +500,7 @@ class Book(models.Model): return books_by_author, orphans, books_by_parent _audiences_pl = { + "SP": (1, u"szkoła podstawowa"), "SP1": (1, u"szkoła podstawowa"), "SP2": (1, u"szkoła podstawowa"), "P": (1, u"szkoła podstawowa"), @@ -564,14 +510,25 @@ class Book(models.Model): } def audiences_pl(self): audiences = self.extra_info.get('audiences', []) - audiences = sorted(set([self._audiences_pl[a] for a in audiences])) + audiences = sorted(set([self._audiences_pl.get(a, (99, a)) for a in audiences])) return [a[1] for a in audiences] + def stage_note(self): + stage = self.extra_info.get('stage') + if stage and stage < '0.4': + return (_('This work needs modernisation'), + reverse('infopage', args=['wymagajace-uwspolczesnienia'])) + else: + return None, None + def choose_fragment(self): - tag = self.book_tag() - fragments = Fragment.tagged.with_any([tag]) - if fragments.exists(): - return fragments.order_by('?')[0] + fragments = self.fragments.order_by() + fragments_count = fragments.count() + if not fragments_count and self.children.exists(): + fragments = Fragment.objects.filter(book__ancestor=self).order_by() + fragments_count = fragments.count() + if fragments_count: + return fragments[randint(0, fragments_count - 1)] elif self.parent: return self.parent.choose_fragment() else: @@ -581,6 +538,15 @@ class Book(models.Model): # add the file fields for format_ in Book.formats: field_name = "%s_file" % format_ + # This weird globals() assignment makes Django migrations comfortable. + _upload_to = _ebook_upload_to('book/%s/%%s.%s' % (format_, format_)) + _upload_to.__name__ = '_%s_upload_to' % format_ + globals()[_upload_to.__name__] = _upload_to + EbookField(format_, _("%s file" % format_.upper()), - upload_to=book_upload_path(format_), - blank=True, default='').contribute_to_class(Book, field_name) + upload_to=_upload_to, + storage=bofh_storage, + max_length=255, + blank=True, + default='' + ).contribute_to_class(Book, field_name)