X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/46997a51ed0ceb16ddbac712fbcb552a86cdc9e2..85eb51c030b89dba1c940a8508f1ae1ced1178d4:/philo/models/nodes.py

diff --git a/philo/models/nodes.py b/philo/models/nodes.py
index 58adb6e..6eeb965 100644
--- a/philo/models/nodes.py
+++ b/philo/models/nodes.py
@@ -29,8 +29,8 @@ class Node(TreeEntity):
 	:class:`Node`\ s are the basic building blocks of a website using Philo. They define the URL hierarchy and connect each URL to a :class:`View` subclass instance which is used to generate an HttpResponse.
 	
 	"""
-	view_content_type = models.ForeignKey(ContentType, related_name='node_view_set', limit_choices_to=_view_content_type_limiter)
-	view_object_id = models.PositiveIntegerField()
+	view_content_type = models.ForeignKey(ContentType, related_name='node_view_set', limit_choices_to=_view_content_type_limiter, blank=True, null=True)
+	view_object_id = models.PositiveIntegerField(blank=True, null=True)
 	#: :class:`GenericForeignKey` to a non-abstract subclass of :class:`View`
 	view = generic.GenericForeignKey('view_content_type', 'view_object_id')
 	
@@ -42,11 +42,15 @@ class Node(TreeEntity):
 		return False
 	
 	def handles_subpath(self, subpath):
-		return self.view.handles_subpath(subpath)
+		if self.view:
+			return self.view.handles_subpath(subpath)
+		return False
 	
 	def render_to_response(self, request, extra_context=None):
 		"""This is a shortcut method for :meth:`View.render_to_response`"""
-		return self.view.render_to_response(request, extra_context)
+		if self.view:
+			return self.view.render_to_response(request, extra_context)
+		raise Http404
 	
 	def get_absolute_url(self, request=None, with_domain=False, secure=False):
 		"""
@@ -291,7 +295,7 @@ class MultiView(View):
 
 class TargetURLModel(models.Model):
 	"""An abstract parent class for models which deal in targeting a url."""
-	#: An optional :class:`ForeignKey` to a :class:`Node`. If provided, that node will be used as the basis for the redirect.
+	#: An optional :class:`ForeignKey` to a :class:`.Node`. If provided, that node will be used as the basis for the redirect.
 	target_node = models.ForeignKey(Node, blank=True, null=True, related_name="%(app_label)s_%(class)s_related")
 	#: A :class:`CharField` which may contain an absolute or relative URL, or the name of a node's subpath.
 	url_or_subpath = models.CharField(max_length=200, blank=True, help_text="Point to this url or, if a node is defined and accepts subpaths, this subpath of the node.")