def __call__(self):
"""Determine inherited view and attempt to find suitable
collage view.
If a view can't be determined, render fallback view. If the
view does not exist, render an error message.
"""
layout = self.context.getLayout()
name = self.mapping.get(layout, self.fallback_view_name)
spec = providedBy(self.context), ICollageBrowserLayer
lookup = getSiteManager().adapters.lookup
factory = lookup(spec, Interface, name=name)
if factory is None:
name = None
factory = lookup(spec, Interface, name=self.error_view_name)
if factory is None:
raise ComponentLookupError(
"Layout not found: %s (and unable to render error view)." %
layout)
view = factory(self.context, self.request)
if name is None:
view.notfoundlayoutname = layout
view.__alias__ = self.__alias__
return view()
def getSettings(site):
registry = site.getSiteManager().getUtility(IRegistry)
try:
return registry.forInterface(ISettings)
except:
log_exc()
raise ComponentLookupError(ISettings)
def browserDefault(self, request):
"""See zope.publisher.browser.interfaces.IBrowserPublisher"""
# XXX this re-implements zope.app.publisher.browser.getDefaultViewName()
# to break our only dependency on it.
view_name = getSiteManager(None).adapters.lookup(
map(providedBy, (self.context, request)), IDefaultViewName)
if view_name is None:
raise ComponentLookupError("Couldn't find default view name",
self.context, request)
view_uri = "@@%s" % view_name
return self.context, (view_uri, )
def getSiteManager(self):
self.called = True
from zope.component import ComponentLookupError
raise ComponentLookupError()
def get_settings(context):
try:
return getUtility(IRegistry).forInterface(IFeedSettings)
except KeyError:
raise ComponentLookupError(IFeedSettings)