X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/f030289137a031a2e78f9aadb9ce075d8de76649..e78ad9088340bcceb6634334ce0941f571a67440:/apps/catalogue/models.py diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py index 6291d97e8..568679b10 100644 --- a/apps/catalogue/models.py +++ b/apps/catalogue/models.py @@ -2,6 +2,8 @@ # 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 _ @@ -17,13 +19,14 @@ from django.conf import settings from newtagging.models import TagBase, tags_updated from newtagging import managers -from catalogue.fields import JSONField +from catalogue.fields import JSONField, OverwritingFileField from catalogue.utils import ExistingFile from librarian import dcparser, html, epub, NoDublinCore import mutagen from mutagen import id3 from slughifi import slughifi +from sortify import sortify TAG_CATEGORIES = ( @@ -66,6 +69,9 @@ class Tag(TagBase): 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) + class UrlDeprecationWarning(DeprecationWarning): pass @@ -184,7 +190,7 @@ def book_upload_path(ext=None, maxlen=100): class BookMedia(models.Model): type = models.CharField(_('type'), choices=MEDIA_FORMATS, max_length="100") name = models.CharField(_('name'), max_length="100") - file = models.FileField(_('file'), upload_to=book_upload_path()) + file = OverwritingFileField(_('file'), upload_to=book_upload_path()) uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False) extra_info = JSONField(_('extra information'), default='{}', editable=False) book = models.ForeignKey('Book', related_name='media') @@ -200,16 +206,13 @@ class BookMedia(models.Model): def save(self, *args, **kwargs): try: - b = BookMedia.objects.get(pk=self.pk) + old = BookMedia.objects.get(pk=self.pk) except BookMedia.DoesNotExist, e: pass else: - # if file is replaced, delete the old one - if self.file.path != b.file.path: - b.file.delete(save=False) # if name changed, change the file name, too - elif self.name != b.name: - self.file.save(None, ExistingFile(self.file.path)) + if slughifi(self.name) != slughifi(old.name): + self.file.save(None, ExistingFile(self.file.path), save=False, leave=True) super(BookMedia, self).save(*args, **kwargs) extra_info = self.get_extra_info_value() @@ -274,12 +277,14 @@ 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 @@ -301,7 +306,7 @@ class Book(models.Model): pass class Meta: - ordering = ('title',) + ordering = ('sort_key',) verbose_name = _('book') verbose_name_plural = _('books') @@ -309,6 +314,8 @@ 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 = {} @@ -540,7 +547,61 @@ class Book(models.Model): out = StringIO() text.transform(open(self.xml_file.path), out) self.txt_file.save('%s.txt' % self.slug, ContentFile(out.getvalue())) - self.save() + + + def build_html(self): + from tempfile import NamedTemporaryFile + from markupstring import MarkupString + + 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)) + + # 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 = theme_name.lower() + tag.save() + themes.append(tag) + if not themes: + continue + + text = fragment.to_string() + short_text = '' + if (len(MarkupString(text)) > 240): + short_text = unicode(MarkupString(text)[:160]) + 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() + return True + return False @classmethod @@ -559,9 +620,6 @@ class Book(models.Model): @classmethod 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 markupstring import MarkupString - from django.core.files.storage import default_storage # check for parts before we do anything children = [] @@ -593,7 +651,7 @@ class Book(models.Model): book._short_html = '' book.save() - book_tags = [] + meta_tags = [] categories = (('kinds', 'kind'), ('genres', 'genre'), ('authors', 'author'), ('epochs', 'epoch')) for field_name, category in categories: try: @@ -608,11 +666,11 @@ 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) + meta_tags.append(tag) - book.tags = set(book_tags + book_shelves) + book.tags = set(meta_tags + book_shelves) book_tag = book.book_tag() @@ -627,47 +685,7 @@ class Book(models.Model): # delete old fragments when overwriting book.fragments.all().delete() - html_file = NamedTemporaryFile() - if html.transform(book.xml_file.path, html_file, parse_dublincore=False): - book.html_file.save('%s.html' % book.slug, File(html_file), save=False) - - # get ancestor l-tags for adding to new fragments - ancestor_tags = [] - p = book.parent - while p: - ancestor_tags.append(p.book_tag()) - p = p.parent - - # Extract fragments - closed_fragments, open_fragments = html.extract_fragments(book.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 = theme_name.lower() - tag.save() - themes.append(tag) - if not themes: - continue - - text = fragment.to_string() - short_text = '' - if (len(MarkupString(text)) > 240): - short_text = unicode(MarkupString(text)[:160]) - new_fragment, created = Fragment.objects.get_or_create(anchor=fragment.id, book=book, - defaults={'text': text, 'short_text': short_text}) - - new_fragment.save() - new_fragment.tags = set(book_tags + themes + [book_tag] + ancestor_tags) - + if book.build_html(): if not settings.NO_BUILD_TXT and build_txt: book.build_txt() @@ -754,6 +772,24 @@ 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() @@ -809,7 +845,8 @@ class FileRecord(models.Model): 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 \