Minor improvements to navigationoverrides, including admin support and working naviga...

[philo.git] / models / base.py

diff --git a/models/base.py b/models/base.py
index ce74489..202c2f3 100644 (file)
--- a/models/base.py
+++ b/models/base.py
@@ -328,9 +328,6 @@ class TreeManager(models.Manager):
                                kwargs["%s%s__exact" % (prefix, field)] = segment
                                prefix += "parent__"
                        
-                       if not prefix and root is not None:
-                               prefix = "parent__"
-                       
                        if prefix:
                                kwargs[prefix[:-2]] = root
                        
@@ -342,13 +339,15 @@ class TreeManager(models.Manager):
                                path += pathsep
                        return path
                
-               def find_obj(segments, depth, deepest_found):
+               def find_obj(segments, depth, deepest_found=None):
                        if deepest_found is None:
                                deepest_level = 0
-                       else:
+                       elif root is None:
                                deepest_level = deepest_found.get_level() + 1
+                       else:
+                               deepest_level = deepest_found.get_level() - root.get_level()
                        try:
-                               obj = self.get(**make_query_kwargs(segments[deepest_level:depth], deepest_found))
+                               obj = self.get(**make_query_kwargs(segments[deepest_level:depth], deepest_found or root))
                        except self.model.DoesNotExist:
                                if not deepest_level and depth > 1:
                                        # make sure there's a root node...
@@ -364,7 +363,10 @@ class TreeManager(models.Manager):
                                return find_obj(segments, depth, deepest_found)
                        else:
                                # Yay! Found one!
-                               deepest_level = obj.get_level() + 1
+                               if root is None:
+                                       deepest_level = obj.get_level() + 1
+                               else:
+                                       deepest_level = obj.get_level() - root.get_level()
                                
                                # Could there be a deeper one?
                                if obj.is_leaf_node():
@@ -391,7 +393,7 @@ class TreeManager(models.Manager):
                # can be reduced. It might be possible to weight the search towards the beginning
                # of the path, since short paths are more likely, but how far forward? It would
                # need to shift depending on len(segments) - perhaps logarithmically?
-               return find_obj(segments, len(segments)/2 or len(segments), root)
+               return find_obj(segments, len(segments)/2 or len(segments))
 
 
 class TreeModel(MPTTModel):
@@ -400,10 +402,18 @@ class TreeModel(MPTTModel):
        slug = models.SlugField(max_length=255)
        
        def get_path(self, root=None, pathsep='/', field='slug'):
+               if root == self:
+                       return ''
+               
                if root is not None and not self.is_descendant_of(root):
                        raise AncestorDoesNotExist(root)
                
-               return pathsep.join([getattr(parent, field, '?') for parent in list(self.get_ancestors()) + [self]])
+               qs = self.get_ancestors()
+               
+               if root is not None:
+                       qs = qs.filter(level__gt=root.level)
+               
+               return pathsep.join([getattr(parent, field, '?') for parent in list(qs) + [self]])
        path = property(get_path)
        
        def __unicode__(self):