- Added librarian as a submodule.

[wolnelektury.git] / apps / catalogue / models.py

diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index b760ecc..367f382 100644 (file)
--- a/apps/catalogue/models.py
+++ b/apps/catalogue/models.py
@@ -9,6 +9,7 @@ from django.contrib.auth.models import User
 from django.core.files import File
 from django.template.loader import render_to_string
 from django.utils.safestring import mark_safe
 from django.core.files import File
 from django.template.loader import render_to_string
 from django.utils.safestring import mark_safe

+from django.utils.translation import get_language

 from django.core.urlresolvers import reverse
 from datetime import datetime
 
 from django.core.urlresolvers import reverse
 from datetime import datetime
 


@@ -35,26 +36,52 @@ class TagSubcategoryManager(models.Manager):
     def __init__(self, subcategory):
         super(TagSubcategoryManager, self).__init__()
         self.subcategory = subcategory
     def __init__(self, subcategory):
         super(TagSubcategoryManager, self).__init__()
         self.subcategory = subcategory

-        
+

     def get_query_set(self):
         return super(TagSubcategoryManager, self).get_query_set().filter(category=self.subcategory)
 
 
 class Tag(TagBase):
     name = models.CharField(_('name'), max_length=50, db_index=True)
     def get_query_set(self):
         return super(TagSubcategoryManager, self).get_query_set().filter(category=self.subcategory)
 
 
 class Tag(TagBase):
     name = models.CharField(_('name'), max_length=50, db_index=True)

-    slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
+    slug = models.SlugField(_('slug'), max_length=120, db_index=True)

     sort_key = models.SlugField(_('sort key'), max_length=120, db_index=True)
     sort_key = models.SlugField(_('sort key'), max_length=120, db_index=True)

-    category = models.CharField(_('category'), max_length=50, blank=False, null=False, 
+    category = models.CharField(_('category'), max_length=50, blank=False, null=False,

         db_index=True, choices=TAG_CATEGORIES)
     description = models.TextField(_('description'), blank=True)
     main_page = models.BooleanField(_('main page'), default=False, db_index=True, help_text=_('Show tag on main page'))
         db_index=True, choices=TAG_CATEGORIES)
     description = models.TextField(_('description'), blank=True)
     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'), default=0, blank=False, null=False)
     death = models.IntegerField(_(u'year of death'), blank=True, null=True)
     user = models.ForeignKey(User, blank=True, null=True)
     book_count = models.IntegerField(_('book count'), default=0, blank=False, null=False)
     death = models.IntegerField(_(u'year of death'), blank=True, null=True)

-    gazeta_link = models.CharField(blank=True,  max_length=240)
-    wiki_link = models.CharField(blank=True,  max_length=240)
-    
+    gazeta_link = models.CharField(blank=True, max_length=240)
+    wiki_link = models.CharField(blank=True, max_length=240)
+
+    categories_rev = {
+        'autor': 'author',
+        'epoka': 'epoch',
+        'rodzaj': 'kind',
+        'gatunek': 'genre',
+        'motyw': 'theme',
+        'polka': 'set',
+    }
+    categories_dict = dict((item[::-1] for item in categories_rev.iteritems()))
+
+    class Meta:
+        ordering = ('sort_key',)
+        verbose_name = _('tag')
+        verbose_name_plural = _('tags')
+        unique_together = (("slug", "category"),)
+
+    def __unicode__(self):
+        return self.name
+
+    def __repr__(self):
+        return "Tag(slug=%r)" % self.slug
+
+    @permalink
+    def get_absolute_url(self):
+        return ('catalogue.views.tagged_object_list', [self.url_chunk])
+

     def has_description(self):
         return len(self.description) > 0
     has_description.short_description = _('description')
     def has_description(self):
         return len(self.description) > 0
     has_description.short_description = _('description')


@@ -62,36 +89,55 @@ class Tag(TagBase):
 
     def alive(self):
         return self.death is None
 
     def alive(self):
         return self.death is None

-    
+

     def in_pd(self):
         """ tests whether an author is in public domain """
         return self.death is not None and self.goes_to_pd() <= datetime.now().year
     def in_pd(self):
         """ tests whether an author is in public domain """
         return self.death is not None and self.goes_to_pd() <= datetime.now().year

-    
+

     def goes_to_pd(self):
         """ calculates the year of public domain entry for an author """
         return self.death + 71 if self.death is not None else None
 
     def goes_to_pd(self):
         """ calculates the year of public domain entry for an author """
         return self.death + 71 if self.death is not None else None
 

-    @permalink
-    def get_absolute_url(self):
-        return ('catalogue.views.tagged_object_list', [self.slug])
-    
-    class Meta:
-        ordering = ('sort_key',)
-        verbose_name = _('tag')
-        verbose_name_plural = _('tags')
-    
-    def __unicode__(self):
-        return self.name
-

     @staticmethod
     def get_tag_list(tags):
         if isinstance(tags, basestring):
     @staticmethod
     def get_tag_list(tags):
         if isinstance(tags, basestring):

-            tag_slugs = tags.split('/')
-            return [Tag.objects.get(slug=slug) for slug in tag_slugs]
+            real_tags = []
+            ambiguous_slugs = []
+            category = None
+            tags_splitted = tags.split('/')
+            for index, name in enumerate(tags_splitted):
+                if name in Tag.categories_rev:
+                    category = Tag.categories_rev[name]
+                else:
+                    if category:
+                        real_tags.append(Tag.objects.get(slug=name, category=category))
+                        category = None
+                    else:
+                        try:
+                            real_tags.append(Tag.objects.exclude(category='book').get(slug=name))
+                        except Tag.MultipleObjectsReturned, e:
+                            ambiguous_slugs.append(name)
+
+            if category:
+                # something strange left off
+                raise Tag.DoesNotExist()
+            if ambiguous_slugs:
+                # some tags should be qualified
+                e = Tag.MultipleObjectsReturned()
+                e.tags = real_tags
+                e.ambiguous_slugs = ambiguous_slugs
+                raise e
+            else:
+                return real_tags

         else:
             return TagBase.get_tag_list(tags)
 
         else:
             return TagBase.get_tag_list(tags)
 

+    @property
+    def url_chunk(self):
+        return '/'.join((Tag.categories_dict[self.category], self.slug))

 
 

+
+# TODO: why is this hard-coded ?

 def book_upload_path(ext):
     def get_dynamic_path(book, filename):
         return 'lektura/%s.%s' % (book.slug, ext)
 def book_upload_path(ext):
     def get_dynamic_path(book, filename):
         return 'lektura/%s.%s' % (book.slug, ext)


@@ -106,41 +152,91 @@ class Book(models.Model):
     _short_html = models.TextField(_('short HTML'), editable=False)
     parent_number = models.IntegerField(_('parent number'), default=0)
     extra_info = JSONField(_('extra information'))
     _short_html = models.TextField(_('short HTML'), editable=False)
     parent_number = models.IntegerField(_('parent number'), default=0)
     extra_info = JSONField(_('extra information'))

-    gazeta_link = models.CharField(blank=True,  max_length=240)
-    wiki_link = models.CharField(blank=True,  max_length=240)
+    gazeta_link = models.CharField(blank=True, max_length=240)
+    wiki_link = models.CharField(blank=True, max_length=240)
+

 
 

-    

     # Formats
     xml_file = models.FileField(_('XML file'), upload_to=book_upload_path('xml'), blank=True)
     html_file = models.FileField(_('HTML file'), upload_to=book_upload_path('html'), blank=True)
     pdf_file = models.FileField(_('PDF file'), upload_to=book_upload_path('pdf'), blank=True)
     # Formats
     xml_file = models.FileField(_('XML file'), upload_to=book_upload_path('xml'), blank=True)
     html_file = models.FileField(_('HTML file'), upload_to=book_upload_path('html'), blank=True)
     pdf_file = models.FileField(_('PDF file'), upload_to=book_upload_path('pdf'), blank=True)

+    epub_file = models.FileField(_('EPUB file'), upload_to=book_upload_path('epub'), blank=True)

     odt_file = models.FileField(_('ODT file'), upload_to=book_upload_path('odt'), blank=True)
     txt_file = models.FileField(_('TXT file'), upload_to=book_upload_path('txt'), blank=True)
     mp3_file = models.FileField(_('MP3 file'), upload_to=book_upload_path('mp3'), blank=True)
     ogg_file = models.FileField(_('OGG file'), upload_to=book_upload_path('ogg'), blank=True)
     odt_file = models.FileField(_('ODT file'), upload_to=book_upload_path('odt'), blank=True)
     txt_file = models.FileField(_('TXT file'), upload_to=book_upload_path('txt'), blank=True)
     mp3_file = models.FileField(_('MP3 file'), upload_to=book_upload_path('mp3'), blank=True)
     ogg_file = models.FileField(_('OGG file'), upload_to=book_upload_path('ogg'), blank=True)

-    
+

     parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
     parent = models.ForeignKey('self', blank=True, null=True, related_name='children')

-    
+

     objects = models.Manager()
     tagged = managers.ModelTaggedItemManager(Tag)
     tags = managers.TagDescriptor(Tag)
     objects = models.Manager()
     tagged = managers.ModelTaggedItemManager(Tag)
     tags = managers.TagDescriptor(Tag)

-    
+
+    _tag_counter = JSONField(null=True, editable=False)
+    _theme_counter = JSONField(null=True, editable=False)
+
+    class AlreadyExists(Exception):
+        pass
+
+    class Meta:
+        ordering = ('title',)
+        verbose_name = _('book')
+        verbose_name_plural = _('books')
+
+    def __unicode__(self):
+        return self.title
+
+    def save(self, force_insert=False, force_update=False, reset_short_html=True, refresh_mp3=True):
+        if reset_short_html:
+            # Reset _short_html during save
+            for key in filter(lambda x: x.startswith('_short_html'), self.__dict__):
+                self.__setattr__(key, '')
+
+        book = super(Book, self).save(force_insert, force_update)
+
+        if refresh_mp3 and self.mp3_file:
+            print self.mp3_file, self.mp3_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
+
+    @permalink
+    def get_absolute_url(self):
+        return ('catalogue.views.book_detail', [self.slug])
+

     @property
     def name(self):
         return self.title
     @property
     def name(self):
         return self.title

-    
+
+    def book_tag(self):
+        slug = ('l-' + self.slug)[:120]
+        book_tag, created = Tag.objects.get_or_create(slug=slug, category='book')
+        if created:
+            book_tag.name = self.title[:50]
+            book_tag.sort_key = slug
+            book_tag.save()
+        return book_tag
+

     def short_html(self):
     def short_html(self):

-        if len(self._short_html):
-            return mark_safe(self._short_html)
+        key = '_short_html_%s' % get_language()
+        short_html = getattr(self, key)
+
+        if short_html and len(short_html):
+            return mark_safe(short_html)

         else:
             tags = self.tags.filter(~Q(category__in=('set', 'theme', 'book')))
             tags = [mark_safe(u'<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name)) for tag in tags]
 
             formats = []
             if self.html_file:
         else:
             tags = self.tags.filter(~Q(category__in=('set', 'theme', 'book')))
             tags = [mark_safe(u'<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name)) for tag in tags]
 
             formats = []
             if self.html_file:

-                formats.append(u'<a href="%s">Czytaj online</a>' % reverse('book_text', kwargs={'slug': self.slug}))
+                formats.append(u'<a href="%s">%s</a>' % (reverse('book_text', kwargs={'slug': self.slug}), _('Read online')))

             if self.pdf_file:
                 formats.append(u'<a href="%s">PDF</a>' % self.pdf_file.url)
             if self.pdf_file:
                 formats.append(u'<a href="%s">PDF</a>' % self.pdf_file.url)

+            if self.epub_file:
+                formats.append(u'<a href="%s">EPUB</a>' % self.epub_file.url)

             if self.odt_file:
                 formats.append(u'<a href="%s">ODT</a>' % self.odt_file.url)
             if self.txt_file:
             if self.odt_file:
                 formats.append(u'<a href="%s">ODT</a>' % self.odt_file.url)
             if self.txt_file:


@@ -149,109 +245,101 @@ class Book(models.Model):
                 formats.append(u'<a href="%s">MP3</a>' % self.mp3_file.url)
             if self.ogg_file:
                 formats.append(u'<a href="%s">OGG</a>' % self.ogg_file.url)
                 formats.append(u'<a href="%s">MP3</a>' % self.mp3_file.url)
             if self.ogg_file:
                 formats.append(u'<a href="%s">OGG</a>' % self.ogg_file.url)

-            
+

             formats = [mark_safe(format) for format in formats]
             formats = [mark_safe(format) for format in formats]

-            
-            self._short_html = unicode(render_to_string('catalogue/book_short.html',
-                {'book': self, 'tags': tags, 'formats': formats}))
+
+            setattr(self, key, unicode(render_to_string('catalogue/book_short.html',
+                {'book': self, 'tags': tags, 'formats': formats})))

             self.save(reset_short_html=False)
             self.save(reset_short_html=False)

-            return mark_safe(self._short_html)
-    
-    def save(self, force_insert=False, force_update=False, reset_short_html=True):
-        if reset_short_html:
-            # Reset _short_html during save
-            self._short_html = ''
-        
-        book = super(Book, self).save(force_insert, force_update)
-        
-        if self.mp3_file:
-            print self.mp3_file, self.mp3_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 mark_safe(getattr(self, key))
+
+

     def get_mp3_info(self):
         """Retrieves artist and director names from audio ID3 tags."""
         audio = id3.ID3(self.mp3_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 get_mp3_info(self):
         """Retrieves artist and director names from audio ID3 tags."""
         audio = id3.ID3(self.mp3_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')
     has_description.boolean = True
     def has_description(self):
         return len(self.description) > 0
     has_description.short_description = _('description')
     has_description.boolean = True

-    
+

     def has_pdf_file(self):
         return bool(self.pdf_file)
     has_pdf_file.short_description = 'PDF'
     has_pdf_file.boolean = True
     def has_pdf_file(self):
         return bool(self.pdf_file)
     has_pdf_file.short_description = 'PDF'
     has_pdf_file.boolean = True

-    
+
+    def has_epub_file(self):
+        return bool(self.epub_file)
+    has_epub_file.short_description = 'EPUB'
+    has_epub_file.boolean = True
+

     def has_odt_file(self):
         return bool(self.odt_file)
     has_odt_file.short_description = 'ODT'
     has_odt_file.boolean = True
     def has_odt_file(self):
         return bool(self.odt_file)
     has_odt_file.short_description = 'ODT'
     has_odt_file.boolean = True

-    
+

     def has_html_file(self):
         return bool(self.html_file)
     has_html_file.short_description = 'HTML'
     has_html_file.boolean = True
 
     def has_html_file(self):
         return bool(self.html_file)
     has_html_file.short_description = 'HTML'
     has_html_file.boolean = True
 

-    class AlreadyExists(Exception):
-        pass
-    
-    @staticmethod
-    def from_xml_file(xml_file, overwrite=False):
+    @classmethod
+    def from_xml_file(cls, xml_file, overwrite=False):
+        # use librarian to parse meta-data
+        book_info = dcparser.parse(xml_file)
+
+        if not isinstance(xml_file, File):
+            xml_file = File(xml_file)
+
+        try:
+            return cls.from_text_and_meta(xml_file, book_info, overwrite)
+        finally:
+            xml_file.close()
+
+    @classmethod
+    def from_text_and_meta(cls, raw_file, book_info, overwrite=False):

         from tempfile import NamedTemporaryFile
         from slughifi import slughifi
         from markupstring import MarkupString
         from tempfile import NamedTemporaryFile
         from slughifi import slughifi
         from markupstring import MarkupString

-        
+

         # Read book metadata
         # Read book metadata

-        book_info = dcparser.parse(xml_file)

         book_base, book_slug = book_info.url.rsplit('/', 1)
         book, created = Book.objects.get_or_create(slug=book_slug)
         book_base, book_slug = book_info.url.rsplit('/', 1)
         book, created = Book.objects.get_or_create(slug=book_slug)

-        
+

         if created:
             book_shelves = []
         else:
             if not overwrite:
         if created:
             book_shelves = []
         else:
             if not overwrite:

-                raise Book.AlreadyExists('Book %s already exists' % book_slug)
+                raise Book.AlreadyExists(_('Book %s already exists') % book_slug)

             # Save shelves for this book
             book_shelves = list(book.tags.filter(category='set'))
             # Save shelves for this book
             book_shelves = list(book.tags.filter(category='set'))

-        
+

         book.title = book_info.title
         book.set_extra_info_value(book_info.to_dict())
         book._short_html = ''
         book.save()
         book.title = book_info.title
         book.set_extra_info_value(book_info.to_dict())
         book._short_html = ''
         book.save()

-        
+

         book_tags = []
         book_tags = []

-        for category in ('kind', 'genre', 'author', 'epoch'):    
+        for category in ('kind', 'genre', 'author', 'epoch'):

             tag_name = getattr(book_info, category)
             tag_sort_key = tag_name
             if category == 'author':
                 tag_sort_key = tag_name.last_name
                 tag_name = ' '.join(tag_name.first_names) + ' ' + tag_name.last_name
             tag_name = getattr(book_info, category)
             tag_sort_key = tag_name
             if category == 'author':
                 tag_sort_key = tag_name.last_name
                 tag_name = ' '.join(tag_name.first_names) + ' ' + tag_name.last_name

-            tag, created = Tag.objects.get_or_create(slug=slughifi(tag_name))
+            tag, created = Tag.objects.get_or_create(slug=slughifi(tag_name), category=category)

             if created:
                 tag.name = tag_name
                 tag.sort_key = slughifi(tag_sort_key)
             if created:
                 tag.name = tag_name
                 tag.sort_key = slughifi(tag_sort_key)

-                tag.category = category

                 tag.save()
             book_tags.append(tag)
                 tag.save()
             book_tags.append(tag)

-            
-        book_tag, created = Tag.objects.get_or_create(slug=('l-' + book.slug)[:120])
-        if created:
-            book_tag.name = book.title[:50]
-            book_tag.sort_key = ('l-' + book.slug)[:120]
-            book_tag.category = 'book'
-            book_tag.save()
-        book_tags.append(book_tag)
-        
+

         book.tags = book_tags
         book.tags = book_tags

-        
+
+        book_tag = book.book_tag()
+

         if hasattr(book_info, 'parts'):
             for n, part_url in enumerate(book_info.parts):
                 base, slug = part_url.rsplit('/', 1)
         if hasattr(book_info, 'parts'):
             for n, part_url in enumerate(book_info.parts):
                 base, slug = part_url.rsplit('/', 1)


@@ -261,24 +349,24 @@ class Book(models.Model):
                     child_book.parent_number = n
                     child_book.save()
                 except Book.DoesNotExist, e:
                     child_book.parent_number = n
                     child_book.save()
                 except Book.DoesNotExist, e:

-                    raise Book.DoesNotExist(u'Book with slug = "%s" does not exist.' % slug)
-        
+                    raise Book.DoesNotExist(_('Book with slug = "%s" does not exist.') % slug)
+

         book_descendants = list(book.children.all())
         while len(book_descendants) > 0:
             child_book = book_descendants.pop(0)
         book_descendants = list(book.children.all())
         while len(book_descendants) > 0:
             child_book = book_descendants.pop(0)

+            child_book.tags = list(child_book.tags) + [book_tag]
+            child_book.save()

             for fragment in child_book.fragments.all():
                 fragment.tags = set(list(fragment.tags) + [book_tag])
             book_descendants += list(child_book.children.all())
             for fragment in child_book.fragments.all():
                 fragment.tags = set(list(fragment.tags) + [book_tag])
             book_descendants += list(child_book.children.all())

-            
+

         # Save XML and HTML files
         # Save XML and HTML files

-        if not isinstance(xml_file, File):
-            xml_file = File(file(xml_file))
-        book.xml_file.save('%s.xml' % book.slug, xml_file, save=False)
-        
+        book.xml_file.save('%s.xml' % book.slug, raw_file, save=False)
+

         html_file = NamedTemporaryFile()
         html_file = NamedTemporaryFile()

-        if html.transform(book.xml_file.path, html_file):
+        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)
             book.html_file.save('%s.html' % book.slug, File(html_file), save=False)

-            
+

             # Extract fragments
             closed_fragments, open_fragments = html.extract_fragments(book.html_file.path)
             book_themes = []
             # Extract fragments
             closed_fragments, open_fragments = html.extract_fragments(book.html_file.path)
             book_themes = []


@@ -287,43 +375,64 @@ class Book(models.Model):
                 short_text = ''
                 if (len(MarkupString(text)) > 240):
                     short_text = unicode(MarkupString(text)[:160])
                 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, 
+                new_fragment, created = Fragment.objects.get_or_create(anchor=fragment.id, book=book,

                     defaults={'text': text, 'short_text': short_text})
                     defaults={'text': text, 'short_text': short_text})

-                
+

                 try:
                     theme_names = [s.strip() for s in fragment.themes.split(',')]
                 except AttributeError:
                     continue
                 themes = []
                 for theme_name in theme_names:
                 try:
                     theme_names = [s.strip() for s in fragment.themes.split(',')]
                 except AttributeError:
                     continue
                 themes = []
                 for theme_name in theme_names:

-                    tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name))
+                    tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name), category='theme')

                     if created:
                         tag.name = theme_name
                         tag.sort_key = slughifi(theme_name)
                     if created:
                         tag.name = theme_name
                         tag.sort_key = slughifi(theme_name)

-                        tag.category = 'theme'

                         tag.save()
                     themes.append(tag)
                 new_fragment.save()
                 new_fragment.tags = set(list(book.tags) + themes + [book_tag])
                 book_themes += themes
                         tag.save()
                     themes.append(tag)
                 new_fragment.save()
                 new_fragment.tags = set(list(book.tags) + themes + [book_tag])
                 book_themes += themes

-            
+

             book_themes = set(book_themes)
             book.tags = list(book.tags) + list(book_themes) + book_shelves
             book_themes = set(book_themes)
             book.tags = list(book.tags) + list(book_themes) + book_shelves

-        
+

         book.save()
         return book
         book.save()
         return book

-    
-    @permalink
-    def get_absolute_url(self):
-        return ('catalogue.views.book_detail', [self.slug])
-        
-    class Meta:
-        ordering = ('title',)
-        verbose_name = _('book')
-        verbose_name_plural = _('books')

 
 

-    def __unicode__(self):
-        return self.title
+
+    def refresh_tag_counter(self):
+        tags = {}
+        for child in self.children.all().order_by():
+            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():
+            tags[tag.pk] = 1
+        self.set__tag_counter_value(tags)
+        self.save(reset_short_html=False, refresh_mp3=False)
+        return tags
+
+    @property
+    def tag_counter(self):
+        if self._tag_counter is None:
+            return self.refresh_tag_counter()
+        return dict((int(k), v) for k, v in self.get__tag_counter_value().iteritems())
+
+    def refresh_theme_counter(self):
+        tags = {}
+        for fragment in Fragment.tagged.with_any([self.book_tag()]).order_by():
+            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)
+        return tags
+
+    @property
+    def theme_counter(self):
+        if self._theme_counter is None:
+            return self.refresh_theme_counter()
+        return dict((int(k), v) for k, v in self.get__theme_counter_value().iteritems())
+

 
 
 class Fragment(models.Model):
 
 
 class Fragment(models.Model):


@@ -336,27 +445,29 @@ class Fragment(models.Model):
     objects = models.Manager()
     tagged = managers.ModelTaggedItemManager(Tag)
     tags = managers.TagDescriptor(Tag)
     objects = models.Manager()
     tagged = managers.ModelTaggedItemManager(Tag)
     tags = managers.TagDescriptor(Tag)

-    
-    def short_html(self):
-        if len(self._short_html):
-            return mark_safe(self._short_html)
-        else:
-            book_authors = [mark_safe(u'<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name)) 
-                for tag in self.book.tags if tag.category == 'author']
-            
-            self._short_html = unicode(render_to_string('catalogue/fragment_short.html',
-                {'fragment': self, 'book': self.book, 'book_authors': book_authors}))
-            self.save()
-            return mark_safe(self._short_html)
-    
-    def get_absolute_url(self):
-        return '%s#m%s' % (reverse('book_text', kwargs={'slug': self.book.slug}), self.anchor)
-    
+

     class Meta:
         ordering = ('book', 'anchor',)
         verbose_name = _('fragment')
         verbose_name_plural = _('fragments')
 
     class Meta:
         ordering = ('book', 'anchor',)
         verbose_name = _('fragment')
         verbose_name_plural = _('fragments')
 

+    def get_absolute_url(self):
+        return '%s#m%s' % (reverse('book_text', kwargs={'slug': self.book.slug}), self.anchor)
+
+    def short_html(self):
+        key = '_short_html_%s' % get_language()
+        short_html = getattr(self, key)
+        if short_html and len(short_html):
+            return mark_safe(short_html)
+        else:
+            book_authors = [mark_safe(u'<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name))
+                for tag in self.book.tags if tag.category == 'author']
+
+            setattr(self, key, unicode(render_to_string('catalogue/fragment_short.html',
+                {'fragment': self, 'book': self.book, 'book_authors': book_authors})))
+            self.save()
+            return mark_safe(getattr(self, key))
+

 
 class BookStub(models.Model):
     title = models.CharField(_('title'), max_length=120)
 
 class BookStub(models.Model):
     title = models.CharField(_('title'), max_length=120)


@@ -366,22 +477,23 @@ class BookStub(models.Model):
     translator = models.TextField(_('translator'), blank=True)
     translator_death = models.TextField(_('year of translator\'s death'), blank=True)
 
     translator = models.TextField(_('translator'), blank=True)
     translator_death = models.TextField(_('year of translator\'s death'), blank=True)
 

-    def in_pd(self):
-        return self.pd is not None and self.pd <= datetime.now().year
+    class Meta:
+        ordering = ('title',)
+        verbose_name = _('book stub')
+        verbose_name_plural = _('book stubs')

 
 

-    @property
-    def name(self):
+    def __unicode__(self):

         return self.title
         return self.title

-    
+

     @permalink
     def get_absolute_url(self):
         return ('catalogue.views.book_detail', [self.slug])
 
     @permalink
     def get_absolute_url(self):
         return ('catalogue.views.book_detail', [self.slug])
 

-    def __unicode__(self):
+    def in_pd(self):
+        return self.pd is not None and self.pd <= datetime.now().year
+
+    @property
+    def name(self):

         return self.title
         return self.title

-    
-    class Meta:
-        ordering = ('title',)
-        verbose_name = _('book stub')
-        verbose_name_plural = _('book stubs')
+