X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/1d641adedff354dc932c81ae7b1d9f8c41d0b459..9e556c1938577b991edfcb0a0248fcca92d67f3e:/apps/catalogue/models.py

diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index 1d0b83b65..b78b5939b 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)
 
@@ -155,24 +156,33 @@ 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
 
 
 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('<br/>'.join("<a href='%s'>%s</a>" % (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])
@@ -182,6 +192,27 @@ class BookMedia(models.Model):
         verbose_name        = _('book media')
         verbose_name_plural = _('book media')
 
+    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, **kwargs)
+        return media
+
+    def get_mp3_info(self):
+        """Retrieves artist and director names from audio ID3 tags."""
+        try:
+            audio = id3.ID3(self.file.path)
+            artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
+            director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
+        except:
+            artist_name = director_name = ''
+        return {'artist_name': artist_name, 'director_name': director_name}
+
+
 class Book(models.Model):
     title         = models.CharField(_('title'), max_length=120)
     slug          = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
@@ -220,7 +251,7 @@ class Book(models.Model):
     def __unicode__(self):
         return self.title
 
-    def save(self, force_insert=False, force_update=False, reset_short_html=True, refresh_mp3=True, **kwargs):
+    def save(self, force_insert=False, force_update=False, reset_short_html=True, **kwargs):
         if reset_short_html:
             # Reset _short_html during save
             update = {}
@@ -230,16 +261,7 @@ class Book(models.Model):
             # Fragment.short_html relies on book's tags, so reset it here too
             self.fragments.all().update(**update)
 
-        book = super(Book, self).save(force_insert, force_update)
-
-        if refresh_mp3 and self.has_media('mp3'):
-            file = self.get_media('mp3')[0]
-            #print file, file.path
-            extra_info = self.get_extra_info_value()
-            extra_info.update(self.get_mp3_info())
-            self.set_extra_info_value(extra_info)
-            book = super(Book, self).save(force_insert, force_update)
-        return book
+        return super(Book, self).save(force_insert, force_update)
 
     @permalink
     def get_absolute_url(self):
@@ -300,7 +322,7 @@ 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":
@@ -337,13 +359,11 @@ class Book(models.Model):
                 formats.append(u'<a href="%s">PDF</a>' % self.get_media('pdf').url)
             if self.root_ancestor.has_media("epub"):
                 formats.append(u'<a href="%s">EPUB</a>' % self.root_ancestor.get_media('epub').url)
-            if self.has_media("odt"):
-                formats.append(u'<a href="%s">ODT</a>' % self.get_media('odt').url)
             if self.has_media("txt"):
                 formats.append(u'<a href="%s">TXT</a>' % self.get_media('txt').url)
             # other files
             for m in self.medias.order_by('type'):
-                formats.append(u'<a href="%s">%s</a>' % m.type, m.file.url)
+                formats.append(u'<a href="%s">%s</a>' % (m.file.url, m.type.upper()))
 
             formats = [mark_safe(format) for format in formats]
 
@@ -365,13 +385,6 @@ class Book(models.Model):
         return self._root_ancestor
 
 
-    def get_mp3_info(self):
-        """Retrieves artist and director names from audio ID3 tags."""
-        audio = id3.ID3(self.get_media('mp3')[0].file.path)
-        artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
-        director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
-        return {'artist_name': artist_name, 'director_name': director_name}
-
     def has_description(self):
         return len(self.description) > 0
     has_description.short_description = _('description')
@@ -388,6 +401,11 @@ class Book(models.Model):
     has_epub_file.short_description = 'EPUB'
     has_epub_file.boolean = True
 
+    def has_txt_file(self):
+        return bool(self.txt_file)
+    has_txt_file.short_description = 'HTML'
+    has_txt_file.boolean = True
+
     def has_html_file(self):
         return bool(self.html_file)
     has_html_file.short_description = 'HTML'
@@ -442,9 +460,8 @@ class Book(models.Model):
 
         epub_file = StringIO()
         try:
-            epub.transform(BookImportDocProvider(self), self.slug, epub_file)
-            self.epub_file.save('%s.epub' % self.slug, ContentFile(epub_file.getvalue()), save=False)
-            self.save(refresh_mp3=False)
+            epub.transform(BookImportDocProvider(self), self.slug, output_file=epub_file)
+            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
@@ -455,12 +472,22 @@ class Book(models.Model):
             if remove_descendants and child_book.has_epub_file():
                 child_book.epub_file.delete()
             # save anyway, to refresh short_html
-            child_book.save(refresh_mp3=False)
+            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):
+    def from_xml_file(cls, xml_file, **kwargs):
         # use librarian to parse meta-data
         book_info = dcparser.parse(xml_file)
 
@@ -468,14 +495,14 @@ class Book(models.Model):
             xml_file = File(open(xml_file))
 
         try:
-            return cls.from_text_and_meta(xml_file, book_info, overwrite)
+            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):
+    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
 
@@ -492,6 +519,8 @@ 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:
@@ -582,8 +611,11 @@ class Book(models.Model):
                 new_fragment.save()
                 new_fragment.tags = set(book_tags + themes + [book_tag] + ancestor_tags)
 
-        if not settings.NO_BUILD_EPUB:
-            book.root_ancestor().build_epub()
+        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()
 
         book_descendants = list(book.children.all())
         # add l-tag to descendants and their fragments
@@ -612,12 +644,12 @@ class Book(models.Model):
         for tag in self.tags.exclude(category__in=('book', 'theme', 'set')).order_by():
             tags[tag.pk] = 1
         self.set__tag_counter_value(tags)
-        self.save(reset_short_html=False, refresh_mp3=False)
+        self.save(reset_short_html=False)
         return tags
 
     def reset_tag_counter(self):
         self._tag_counter = None
-        self.save(reset_short_html=False, refresh_mp3=False)
+        self.save(reset_short_html=False)
         if self.parent:
             self.parent.reset_tag_counter()
 
@@ -633,12 +665,12 @@ class Book(models.Model):
             for tag in fragment.tags.filter(category='theme').order_by():
                 tags[tag.pk] = tags.get(tag.pk, 0) + 1
         self.set__theme_counter_value(tags)
-        self.save(reset_short_html=False, refresh_mp3=False)
+        self.save(reset_short_html=False)
         return tags
 
     def reset_theme_counter(self):
         self._theme_counter = None
-        self.save(reset_short_html=False, refresh_mp3=False)
+        self.save(reset_short_html=False)
         if self.parent:
             self.parent.reset_theme_counter()
 
@@ -711,6 +743,12 @@ 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
@@ -728,3 +766,24 @@ 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)
+