fix for book form problem

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

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index 4fbd194..13be963 100755 (executable)
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -209,6 +209,18 @@ class Book(models.Model):
         assert not other.chunk_set.exists()
         other.delete()
 
         assert not other.chunk_set.exists()
         other.delete()
 

+    def split(self):
+        """Splits all the chunks into separate books."""
+        self.title
+        for chunk in self:
+            book = Book.objects.create(title=chunk.title, slug=chunk.slug,
+                    public=self.public, gallery=self.gallery)
+            book[0].delete()
+            chunk.book = book
+            chunk.number = 1
+            chunk.save()
+        assert not self.chunk_set.exists()
+        self.delete()

 
     # State & cache
     # =============
 
     # State & cache
     # =============


@@ -271,9 +283,11 @@ class Book(models.Model):
     def get_on_track(self):
         if self.published:
             return -1
     def get_on_track(self):
         if self.published:
             return -1

-        if len(self) == 0:
-            return -1
-        return min(ch.stage.ordering for ch in self) or 0
+        stages = [ch.stage.ordering if ch.stage is not None else 0
+                    for ch in self]
+        if not len(stages):
+            return 0
+        return min(stages)

     on_track = cached_in_field('_on_track')(get_on_track)
 
     def is_single(self):
     on_track = cached_in_field('_on_track')(get_on_track)
 
     def is_single(self):


@@ -315,7 +329,7 @@ class Book(models.Model):
             "_new_publishable": self.is_new_publishable(),
             "_published": self.is_published(),
             "_single": self.is_single(),
             "_new_publishable": self.is_new_publishable(),
             "_published": self.is_published(),
             "_single": self.is_single(),

-            "_on_track": self.on_track(),
+            "_on_track": self.get_on_track(),

             "_short_html": None,
         }
         Book.objects.filter(pk=self.pk).update(**update)
             "_short_html": None,
         }
         Book.objects.filter(pk=self.pk).update(**update)