X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/76849e4b3dcc3305edbe86b794b04a0bf4a8467c..dbb1ae2cf25105f7a3831961b08386a1326baef8:/apps/catalogue/models/book.py

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index 64dd498d7..bd7d7e49a 100644
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -100,6 +100,12 @@ class Book(models.Model):
     def name(self):
         return self.title
 
+    def language_code(self):
+        return constants.LANGUAGES_3TO2.get(self.language, self.language)
+
+    def language_name(self):
+        return dict(settings.LANGUAGES).get(self.language_code(), "")
+
     def book_tag_slug(self):
         return ('l-' + self.slug)[:120]
 
@@ -122,7 +128,7 @@ class Book(models.Model):
         if self.has_media(type_):
             if type_ in Book.formats:
                 return getattr(self, "%s_file" % type_)
-            else:                                             
+            else:
                 return self.media.filter(type=type_)
         else:
             return None
@@ -134,7 +140,7 @@ class Book(models.Model):
     def get_ogg(self):
         return self.get_media("ogg")
     def get_daisy(self):
-        return self.get_media("daisy")                       
+        return self.get_media("daisy")
 
     def reset_short_html(self):
         if self.id is None:
@@ -145,7 +151,7 @@ class Book(models.Model):
         for fragm in self.fragments.all().iterator():
             fragm.reset_short_html()
 
-        try: 
+        try:
             author = self.tags.filter(category='author')[0].sort_key
         except IndexError:
             author = u''
@@ -317,7 +323,7 @@ class Book(models.Model):
         if 'cover' not in dont_build:
             book.cover.build_delay()
             book.cover_thumb.build_delay()
-        
+
         # No saves behind this point.
 
         if has_own_text:
@@ -406,6 +412,10 @@ class Book(models.Model):
             for child in self.children.all():
                 child.parent_cover_changed()
 
+    def other_versions(self):
+        """Find other versions (i.e. in other languages) of the book."""
+        return type(self).objects.filter(common_slug=self.common_slug).exclude(pk=self.pk)
+
     def related_info(self):
         """Keeps info about related objects (tags, media) in cache field."""
         if self._related_info is not None:
@@ -511,8 +521,6 @@ class Book(models.Model):
         rel_info = book.related_info()
         names = [(related_tag_name(tag), Tag.create_url('author', tag['slug']))
                     for tag in rel_info['tags'].get('author', ())]
-        import logging
-        logging.info("%s, %s" % (book.slug, unicode(rel_info['tags'].get('author', ()))))
         if 'parents' in rel_info:
             books = [(name, Book.create_url(slug))
                         for name, slug in rel_info['parents']]
@@ -535,7 +543,7 @@ class Book(models.Model):
         """
         # get relevant books and their tags
         objects = cls.tagged.with_all(tags)
-        parents = objects.filter(html_file='').only('slug')
+        parents = objects.exclude(children=None).only('slug')
         # eliminate descendants
         l_tags = Tag.objects.filter(category='book',
             slug__in=[book.book_tag_slug() for book in parents.iterator()])
@@ -558,7 +566,7 @@ class Book(models.Model):
                 'title', 'parent', 'slug')
         if filter:
             books = books.filter(filter).distinct()
-            
+
             book_ids = set(b['pk'] for b in books.values("pk").iterator())
             for book in books.iterator():
                 parent = book.parent_id
@@ -574,7 +582,7 @@ class Book(models.Model):
         for tag in Tag.objects.filter(category='author').iterator():
             books_by_author[tag] = []
 
-        for book in books_by_parent.get(None,()):
+        for book in books_by_parent.get(None, ()):
             authors = list(book.tags.filter(category='author'))
             if authors:
                 for author in authors: