from django.contrib.contenttypes import generic
from django.contrib.sites.models import Site
from django.http import HttpResponse, HttpResponseServerError, HttpResponseRedirect
+from django.core.exceptions import ViewDoesNotExist
from django.core.servers.basehttp import FileWrapper
-from django.core.urlresolvers import resolve
+from django.core.urlresolvers import resolve, clear_url_caches, reverse, NoReverseMatch
+from django.template import add_to_builtins as register_templatetags
from inspect import getargspec
-from philo.models.base import TreeEntity, Entity, QuerySetMapper
+from philo.exceptions import MIDDLEWARE_NOT_CONFIGURED
+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 ViewCanNotProvideSubpath, ViewDoesNotProvideSubpaths, AncestorDoesNotExist
+from philo.signals import view_about_to_render, view_finished_rendering
_view_content_type_limiter = ContentTypeSubclassLimiter(None)
@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)
+ if self.view:
+ return self.view.accepts_subpath
+ return False
+
+ def render_to_response(self, request, extra_context=None):
+ return self.view.render_to_response(request, extra_context)
+
+ def get_absolute_url(self):
+ try:
+ root = Site.objects.get_current().root_node
+ except Site.DoesNotExist:
+ root = None
+
+ try:
+ path = self.get_path(root=root)
+ if path:
+ path += '/'
+ root_url = reverse('philo-root')
+ return '%s%s' % (root_url, path)
+ except AncestorDoesNotExist, ViewDoesNotExist:
+ return None
class Meta:
app_label = 'philo'
accepts_subpath = False
+ def get_subpath(self, obj):
+ if not self.accepts_subpath:
+ raise ViewDoesNotProvideSubpaths
+
+ view_name, args, kwargs = self.get_reverse_params(obj)
+ try:
+ return reverse(view_name, args=args, kwargs=kwargs, urlconf=self)
+ except NoReverseMatch:
+ raise ViewCanNotProvideSubpath
+
+ def get_reverse_params(self, obj):
+ """This method should return a view_name, args, kwargs tuple suitable for reversing a url for the given obj using self as the urlconf."""
+ raise NotImplementedError("View subclasses must implement get_reverse_params to support subpaths.")
+
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, request, extra_context=None):
+ if not hasattr(request, 'node'):
+ raise MIDDLEWARE_NOT_CONFIGURED
+
+ extra_context = extra_context or {}
+ view_about_to_render.send(sender=self, request=request, extra_context=extra_context)
+ response = self.actually_render_to_response(request, extra_context)
+ view_finished_rendering.send(sender=self, response=response)
+ return response
- def render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
+ def actually_render_to_response(self, request, extra_context=None):
raise NotImplementedError('View subclasses must implement render_to_response.')
class Meta:
class MultiView(View):
accepts_subpath = True
- urlpatterns = []
+ @property
+ def urlpatterns(self, obj):
+ raise NotImplementedError("MultiView subclasses must implement urlpatterns.")
- def render_to_response(self, node, request, path=None, subpath=None, extra_context=None):
+ def actually_render_to_response(self, request, extra_context=None):
+ clear_url_caches()
+ subpath = request.node.subpath
if not subpath:
subpath = ""
subpath = "/" + subpath
view, args, kwargs = resolve(subpath, urlconf=self)
- view_args = getargspec(view)[0]
- if extra_context is not None and 'extra_context' in view_args:
+ view_args = getargspec(view)
+ if extra_context is not None and ('extra_context' in view_args[0] or view_args[2] is not None):
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)
+ def reverse(self, view_name, args=None, kwargs=None, node=None):
+ """Shortcut method to handle the common pattern of getting the absolute url for a multiview's
+ subpaths."""
+ subpath = reverse(view_name, urlconf=self, args=args or [], kwargs=kwargs or {})
+ if node is not None:
+ return '/%s/%s/' % (node.get_absolute_url().strip('/'), subpath.strip('/'))
+ return subpath
+
+ def get_context(self):
+ """Hook for providing instance-specific context - such as the value of a Field - to all views."""
+ return {}
+
+ def basic_view(self, view_name):
+ """
+ Wraps a field name and returns a simple view function that will render that view
+ with a basic context. This assumes that the field name is a ForeignKey to a
+ model with a render_to_response method.
+ """
+ field = self._meta.get_field(view_name)
+ view = getattr(self, field.name, None)
+
+ def inner(request, extra_context=None, **kwargs):
+ if not view:
+ raise Http404
+ context = self.get_context()
+ context.update(extra_context or {})
+ return view.render_to_response(request, extra_context=context)
+
+ return inner
+
class Meta:
abstract = True
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, request, extra_context=None):
response = HttpResponseRedirect(self.target)
response.status_code = self.status_code
return response
app_label = 'philo'
+# Why does this exist?
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, node, request, path=None, subpath=None, extra_context=None):
+ 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
app_label = 'philo'
def __unicode__(self):
- return self.file.name
\ No newline at end of file
+ return self.file.name
+
+
+register_templatetags('philo.templatetags.nodes')
+register_value_model(Node)
\ No newline at end of file
git.ithinksw.org / philo.git / blobdiff