Genericized penfield's migrations to allow for variations in the PHILO_PERSON_MODULE...

[philo.git] / models / nodes.py

diff --git a/models/nodes.py b/models/nodes.py
index 56cbb12..2bda588 100644 (file)
--- a/models/nodes.py
+++ b/models/nodes.py
@@ -10,7 +10,8 @@ from inspect import getargspec
 from philo.models.base import TreeEntity, Entity, QuerySetMapper, register_value_model
 from philo.utils import ContentTypeSubclassLimiter
 from philo.validators import RedirectValidator
-from philo.exceptions import ViewDoesNotProvideSubpaths
+from philo.exceptions import ViewDoesNotProvideSubpaths, AncestorDoesNotExist
+from philo.signals import view_about_to_render, view_finished_rendering
 
 
 _view_content_type_limiter = ContentTypeSubclassLimiter(None)
@@ -30,6 +31,13 @@ class Node(TreeEntity):
        def render_to_response(self, request, path=None, subpath=None, extra_context=None):
                return self.view.render_to_response(self, request, path, subpath, extra_context)
        
+       def get_absolute_url(self):
+               root = Site.objects.get_current().root_node
+               try:
+                       return '/%s' % self.get_path(root=root)
+               except AncestorDoesNotExist:
+                       return None
+       
        class Meta:
                app_label = 'philo'
 
@@ -49,10 +57,14 @@ class View(Entity):
        def attributes_with_node(self, node):
                return QuerySetMapper(self.attribute_set, passthrough=node.attributes)
        
-       def relationships_with_node(self, node):
-               return QuerySetMapper(self.relationship_set, passthrough=node.relationships)
-       
        def render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
+               extra_context = extra_context or {}
+               view_about_to_render.send(sender=self, node=node, request=request, path=path, subpath=subpath, extra_context=extra_context)
+               response = self.actually_render_to_response(node, request, path, subpath, extra_context)
+               view_finished_rendering.send(sender=self, response=response)
+               return response
+       
+       def actually_render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
                raise NotImplementedError('View subclasses must implement render_to_response.')
        
        class Meta:
@@ -67,7 +79,7 @@ class MultiView(View):
        
        urlpatterns = []
        
-       def render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
+       def actually_render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
                clear_url_caches()
                if not subpath:
                        subpath = ""
@@ -94,7 +106,7 @@ class Redirect(View):
        target = models.CharField(max_length=200, validators=[RedirectValidator()])
        status_code = models.IntegerField(choices=STATUS_CODES, default=302, verbose_name='redirect type')
        
-       def render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
+       def actually_render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
                response = HttpResponseRedirect(self.target)
                response.status_code = self.status_code
                return response
@@ -109,7 +121,7 @@ class File(View):
        mimetype = models.CharField(max_length=255)
        file = models.FileField(upload_to='philo/files/%Y/%m/%d')
        
-       def render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
+       def actually_render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
                wrapper = FileWrapper(self.file)
                response = HttpResponse(wrapper, content_type=self.mimetype)
                response['Content-Length'] = self.file.size