X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/54b897cf7eb8b3840b7b53d355d6db6462002b28..24364abd46e52742e4a97af90ee6ed7dbf53ebd5:/philo/models/nodes.py

diff --git a/philo/models/nodes.py b/philo/models/nodes.py
index a9b77fb..93f772a 100644
--- a/philo/models/nodes.py
+++ b/philo/models/nodes.py
@@ -1,4 +1,6 @@
 from inspect import getargspec
+import mimetypes
+from os.path import basename
 
 from django.contrib.contenttypes import generic
 from django.contrib.contenttypes.models import ContentType
@@ -8,20 +10,23 @@ from django.core.servers.basehttp import FileWrapper
 from django.core.urlresolvers import resolve, clear_url_caches, reverse, NoReverseMatch
 from django.db import models
 from django.http import HttpResponse, HttpResponseServerError, HttpResponseRedirect, Http404
-from django.template import add_to_builtins as register_templatetags
 from django.utils.encoding import smart_str
 
 from philo.exceptions import MIDDLEWARE_NOT_CONFIGURED, ViewCanNotProvideSubpath, ViewDoesNotProvideSubpaths
-from philo.models.base import TreeEntity, Entity, QuerySetMapper, register_value_model
+from philo.models.base import SlugTreeEntity, Entity, register_value_model
 from philo.models.fields import JSONField
 from philo.utils import ContentTypeSubclassLimiter
+from philo.utils.entities import LazyPassthroughAttributeMapper
 from philo.signals import view_about_to_render, view_finished_rendering
 
 
+__all__ = ('Node', 'View', 'MultiView', 'Redirect', 'File')
+
+
 _view_content_type_limiter = ContentTypeSubclassLimiter(None)
 
 
-class Node(TreeEntity):
+class Node(SlugTreeEntity):
 	"""
 	: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.
 	
@@ -101,7 +106,7 @@ class Node(TreeEntity):
 		
 		return '%s%s%s%s' % (domain, root_url, path, subpath)
 	
-	class Meta:
+	class Meta(SlugTreeEntity.Meta):
 		app_label = 'philo'
 
 
@@ -170,12 +175,12 @@ class View(Entity):
 		"""
 		raise NotImplementedError("View subclasses must implement get_reverse_params to support subpaths.")
 	
-	def attributes_with_node(self, node):
+	def attributes_with_node(self, node, mapper=LazyPassthroughAttributeMapper):
 		"""
-		Returns a :class:`~philo.models.base.QuerySetMapper` using the :class:`Node`'s attributes as a passthrough.
+		Returns a :class:`LazyPassthroughAttributeMapper` which can be used to directly retrieve the values of :class:`Attribute`\ s related to the :class:`View`, falling back on the :class:`Attribute`\ s of the passed-in :class:`Node` and its ancestors.
 		
 		"""
-		return QuerySetMapper(self.attribute_set, passthrough=node.attributes)
+		return mapper((self, node))
 	
 	def render_to_response(self, request, extra_context=None):
 		"""
@@ -232,7 +237,7 @@ class MultiView(View):
 		
 		"""
 		clear_url_caches()
-		subpath = request.node.subpath
+		subpath = request.node._subpath
 		view, args, kwargs = resolve(subpath, urlconf=self)
 		view_args = getargspec(view)
 		if extra_context is not None and ('extra_context' in view_args[0] or view_args[2] is not None):
@@ -288,7 +293,7 @@ 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.")
@@ -367,24 +372,32 @@ class Redirect(TargetURLModel, View):
 
 class File(View):
 	"""Stores an arbitrary file."""
-	#: Defines the mimetype of the uploaded file. This will not be validated.
-	mimetype = models.CharField(max_length=255)
+	#: The name of the uploaded file. This is meant for finding the file again later, not for display.
+	name = models.CharField(max_length=255)
+	#: Defines the mimetype of the uploaded file. This will not be validated. If no mimetype is provided, it will be automatically generated based on the filename.
+	mimetype = models.CharField(max_length=255, blank=True)
 	#: Contains the uploaded file. Files are uploaded to ``philo/files/%Y/%m/%d``.
 	file = models.FileField(upload_to='philo/files/%Y/%m/%d')
 	
+	def clean(self):
+		if not self.mimetype:
+			self.mimetype = mimetypes.guess_type(self.file.name, strict=False)[0]
+			if self.mimetype is None:
+				raise ValidationError("Unknown file type.")
+	
 	def actually_render_to_response(self, request, extra_context=None):
 		wrapper = FileWrapper(self.file)
 		response = HttpResponse(wrapper, content_type=self.mimetype)
 		response['Content-Length'] = self.file.size
+		response['Content-Disposition'] = "inline; filename=%s" % basename(self.file.name)
 		return response
 	
 	class Meta:
 		app_label = 'philo'
 	
 	def __unicode__(self):
-		"""Returns the path of the uploaded file."""
-		return self.file.name
+		"""Returns the value of :attr:`File.name`."""
+		return self.name
 
 
-register_templatetags('philo.templatetags.nodes')
 register_value_model(Node)
\ No newline at end of file