Initial implementation of node_url templatetag.

[philo.git] / models / nodes.py

diff --git a/models/nodes.py b/models/nodes.py
index bb1601e..f46ddce 100644 (file)
--- a/models/nodes.py
+++ b/models/nodes.py
@@ -4,9 +4,13 @@ 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 TreeEntity, Entity
+from django.core.urlresolvers import resolve
+from django.template import add_to_builtins as register_templatetags
+from inspect import getargspec
+from philo.models.base import TreeEntity, Entity, QuerySetMapper
 from philo.utils import ContentTypeSubclassLimiter
 from philo.validators import RedirectValidator
+from philo.exceptions import ViewDoesNotProvideSubpaths
 
 
 _view_content_type_limiter = ContentTypeSubclassLimiter(None)
@@ -19,10 +23,12 @@ class Node(TreeEntity):
        
        @property
        def accepts_subpath(self):
-               return self.view.accepts_subpath
+               if self.view:
+                       return self.view.accepts_subpath
+               return False
        
-       def render_to_response(self, request, path=None, subpath=None):
-               return self.view.render_to_response(self, request, path, 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'
@@ -37,12 +43,20 @@ class View(Entity):
        
        accepts_subpath = False
        
-       def render_to_response(self, node, request, path=None, subpath=None):
+       def get_subpath(self, obj):
+               raise ViewDoesNotProvideSubpaths
+       
+       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:
                abstract = True
-               app_label = 'philo'
 
 
 _view_content_type_limiter.cls = View
@@ -53,17 +67,22 @@ class MultiView(View):
        
        urlpatterns = []
        
-       def render_to_response(self, node, 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
-               from django.core.urlresolvers import resolve
                view, args, kwargs = resolve(subpath, urlconf=self)
+               view_args = getargspec(view)[0]
+               if extra_context is not None and 'extra_context' in view_args:
+                       if 'extra_context' in kwargs:
+                               extra_context.update(kwargs['extra_context'])
+                       kwargs['extra_context'] = extra_context
+               if 'node' in view_args:
+                       kwargs['node'] = node
                return view(request, *args, **kwargs)
        
        class Meta:
                abstract = True
-               app_label = 'philo'
 
 
 class Redirect(View):
@@ -74,7 +93,7 @@ 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):
+       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
@@ -89,11 +108,17 @@ 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):
+       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
                return response
        
        class Meta:
-               app_label = 'philo'
\ No newline at end of file
+               app_label = 'philo'
+       
+       def __unicode__(self):
+               return self.file.name
+
+
+register_templatetags('philo.templatetags.nodes')
\ No newline at end of file