X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/2b808329bca3af8d614aa13af7b6ccf24092d4ce..b2f456977cd5884c625f704e024213ad86163929:/models/nodes.py

diff --git a/models/nodes.py b/models/nodes.py
index 6bdc85d..9eb2bd0 100644
--- a/models/nodes.py
+++ b/models/nodes.py
@@ -1,27 +1,65 @@
 from django.db import models
+from django.contrib.contenttypes.models import ContentType
+from django.contrib.contenttypes import generic
+from django.contrib.sites.models import Site
 from django.http import HttpResponse, HttpResponseServerError, HttpResponseRedirect
 from django.core.servers.basehttp import FileWrapper
-from philo.models.base import InheritableTreeEntity
+from philo.models.base import TreeEntity, Entity, QuerySetMapper
+from philo.utils import ContentTypeSubclassLimiter
 from philo.validators import RedirectValidator
 
 
-class Node(InheritableTreeEntity):
+_view_content_type_limiter = ContentTypeSubclassLimiter(None)
+
+
+class Node(TreeEntity):
+	view_content_type = models.ForeignKey(ContentType, related_name='node_view_set', limit_choices_to=_view_content_type_limiter)
+	view_object_id = models.PositiveIntegerField()
+	view = generic.GenericForeignKey('view_content_type', 'view_object_id')
+	
+	@property
+	def accepts_subpath(self):
+		return self.view.accepts_subpath
+	
+	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)
+	
+	class Meta:
+		app_label = 'philo'
+
+
+# the following line enables the selection of a node as the root for a given django.contrib.sites Site object
+models.ForeignKey(Node, related_name='sites', null=True, blank=True).contribute_to_class(Site, 'root_node')
+
+
+class View(Entity):
+	nodes = generic.GenericRelation(Node, content_type_field='view_content_type', object_id_field='view_object_id')
+	
 	accepts_subpath = False
 	
-	def render_to_response(self, request, path=None, subpath=None):
-		return HttpResponseServerError()
-		
+	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):
+		raise NotImplementedError('View subclasses must implement render_to_response.')
+	
 	class Meta:
-		unique_together = (('parent', 'slug'),)
+		abstract = True
 		app_label = 'philo'
 
 
-class MultiNode(Node):
+_view_content_type_limiter.cls = View
+
+
+class MultiView(View):
 	accepts_subpath = True
 	
 	urlpatterns = []
 	
-	def render_to_response(self, request, path=None, subpath=None):
+	def render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
 		if not subpath:
 			subpath = ""
 		subpath = "/" + subpath
@@ -34,15 +72,15 @@ class MultiNode(Node):
 		app_label = 'philo'
 
 
-class Redirect(Node):
+class Redirect(View):
 	STATUS_CODES = (
 		(302, 'Temporary'),
 		(301, 'Permanent'),
 	)
-	target = models.CharField(max_length=200,validators=[RedirectValidator()])
+	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, request, path=None, subpath=None):
+	def 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
@@ -51,12 +89,13 @@ class Redirect(Node):
 		app_label = 'philo'
 
 
-class File(Node):
+class File(View):
 	""" For storing arbitrary files """
+	
 	mimetype = models.CharField(max_length=255)
 	file = models.FileField(upload_to='philo/files/%Y/%m/%d')
 	
-	def render_to_response(self, request, path=None, subpath=None):
+	def 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