X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/d99d71844b7b97800dcab7cbb81c3a4185acbb48..cb5f5e940b246fe7ae76206bf2aa27c78a82a1aa:/apps/catalogue/models.py diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py index baf00a122..8411f477e 100644 --- a/apps/catalogue/models.py +++ b/apps/catalogue/models.py @@ -8,10 +8,10 @@ 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 +21,7 @@ from catalogue.fields import JSONField from librarian import dcparser, html, epub, NoDublinCore from mutagen import id3 +from slughifi import slughifi TAG_CATEGORIES = ( @@ -59,7 +60,7 @@ 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) @@ -155,16 +156,16 @@ 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 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))], ext) return get_dynamic_path @@ -183,14 +184,14 @@ 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): @@ -313,7 +314,7 @@ 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 +453,7 @@ 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 +467,19 @@ 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 +487,14 @@ 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 +511,8 @@ 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: @@ -591,6 +603,9 @@ 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() @@ -720,6 +735,12 @@ 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 @@ -737,3 +758,24 @@ 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) +