DAISY cache fix

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

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index e6f08a9..ea85645 100644 (file)
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -86,6 +86,11 @@ class Book(models.Model):
     def get_absolute_url(self):
         return ('catalogue.views.book_detail', [self.slug])
 
+    @staticmethod
+    @permalink
+    def create_url(slug):
+        return ('catalogue.views.book_detail', [slug])
+
     @property
     def name(self):
         return self.title
@@ -274,12 +279,14 @@ class Book(models.Model):
         cover_changed = old_cover != book.cover_info()
         obsolete_children = set(b for b in book.children.all()
                                 if b not in children)
+        notify_cover_changed = []
         for n, child_book in enumerate(children):
+            new_child = child_book.parent != book
             child_book.parent = book
             child_book.parent_number = n
             child_book.save()
-            if cover_changed:
-                child_book.parent_cover_changed()
+            if new_child or cover_changed:
+                notify_cover_changed.append(child_book)
         # Disown unfaithful children and let them cope on their own.
         for child in obsolete_children:
             child.parent = None
@@ -287,7 +294,7 @@ class Book(models.Model):
             child.save()
             tasks.fix_tree_tags.delay(child)
             if old_cover:
-                child.parent_cover_changed()
+                notify_cover_changed.append(child)
 
         # delete old fragments when overwriting
         book.fragments.all().delete()
@@ -311,6 +318,9 @@ class Book(models.Model):
             book.search_index(index_tags=search_index_tags, reuse_index=search_index_reuse)
             #index_book.delay(book.id, book_info)
 
+        for child in notify_cover_changed:
+            child.parent_cover_changed()
+
         cls.published.send(sender=book)
         return book
 
@@ -477,19 +487,19 @@ class Book(models.Model):
 
     def pretty_title(self, html_links=False):
         book = self
-        names = list(book.tags.filter(category='author'))
-
-        books = []
-        while book:
-            books.append(book)
-            book = book.parent
-        names.extend(reversed(books))
+        rel_info = book.related_info()
+        names = [(name, Tag.create_url('author', slug))
+                    for name, slug in rel_info['tags']['author']]
+        if 'parents' in rel_info:
+            books = [(name, Book.create_url(slug))
+                        for name, slug in rel_info['parents']]
+            names.extend(reversed(books))
+        names.append((self.title, self.get_absolute_url()))
 
         if html_links:
-            names = ['<a href="%s">%s</a>' % (tag.get_absolute_url(), tag.name) for tag in names]
+            names = ['<a href="%s">%s</a>' % (tag[1], tag[0]) for tag in names]
         else:
-            names = [tag.name for tag in names]
-
+            names = [tag[0] for tag in names]
         return ', '.join(names)
 
     @classmethod