# -*- coding: utf-8 -*-
 from django.db import models
-from django.db.models import permalink
+from django.db.models import permalink, Q
 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.utils.safestring import mark_safe
 
 from newtagging.models import TagBase
 from newtagging import managers
     slug = models.SlugField(_('slug'), unique=True, db_index=True)
     description = models.TextField(_('description'), blank=True)
     created_at = models.DateTimeField(_('creation date'), auto_now=True)
+    _short_html = models.TextField(_('short HTML'))
     
     # Formats
     xml_file = models.FileField(_('XML file'), upload_to='books/xml', blank=True)
     objects = managers.ModelTaggedItemManager(Tag)
     tags = managers.TagDescriptor(Tag)
     
+    def short_html(self):
+        if len(self._short_html):
+            return mark_safe(self._short_html)
+        else:
+            tags = self.tags.filter(~Q(category__in=('set', 'theme')))
+            tags = [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>' % self.html_file.url)
+            if self.pdf_file:
+                formats.append(u'<a href="%s">Plik PDF</a>' % self.pdf_file.url)
+            if self.odt_file:
+                formats.append(u'<a href="%s">Plik ODT</a>' % self.odt_file.url)
+            
+            self._short_html = render_to_string('catalogue/book_short.html',
+                {'book': self, 'tags': tags, 'formats': formats})
+            self.save()
+            return mark_safe(self._short_html)
+    
     def has_description(self):
         return len(self.description) > 0
     has_description.short_description = _('description')
 
     return context
 
 
-@register.inclusion_tag('catalogue/_book.html')
-def book(request, book):
-    tags = book.tags.filter(~Q(category__in=('set', 'theme')))
-    tags = [u'<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name) for tag in tags]
-    
-    formats = []
-    if book.html_file:
-        formats.append(u'<a href="%s">Czytaj online</a>' % book.html_file.url)
-    if book.pdf_file:
-        formats.append(u'<a href="%s">Plik PDF</a>' % book.pdf_file.url)
-    if book.odt_file:
-        formats.append(u'<a href="%s">Plik ODT</a>' % book.odt_file.url)
-        
-    return locals()
-
-
 @register.tag
 def catalogue_url(parser, token):
     bits = token.split_contents()
 
+++ /dev/null
-<div class="book">
-    {% if request.user.is_authenticated %}
-    <div class="change-sets">
-        <a href="{% url catalogue.views.book_sets book.slug %}" class="jqm-trigger">Zestawy</a>
-    </div>
-    {% endif %}
-    <div class="book-thumbnail"></div>
-    <div class="book-description">
-        <h2><a href="{{ book.get_absolute_url }}">{{ book.title }}</a></h2>
-        <p style="margin: 0">Formaty: {{ formats|join:", "|safe }}</p>
-        <p style="margin: 0">Utwór w kategoriach: {{ tags|join:", "|safe }}</p>
-    </div>
-</div>
\ No newline at end of file
 
--- /dev/null
+<div class="book">
+    {# {% if request.user.is_authenticated %} #}
+    <div class="change-sets">
+        <a href="{% url catalogue.views.book_sets book.slug %}" class="jqm-trigger">Zestawy</a>
+    </div>
+    {# {% endif %} #}
+    <div class="book-thumbnail"></div>
+    <div class="book-description">
+        <h2><a href="{{ book.get_absolute_url }}">{{ book.title }}</a></h2>
+        <p style="margin: 0">Formaty: {{ formats|join:", "|safe }}</p>
+        <p style="margin: 0">Utwór w kategoriach: {{ tags|join:", "|safe }}</p>
+    </div>
+</div>