Fix AttributeError in @@render-portlet

and add a test for that

news/124.bugfix

@@ -0,0 +1 @@
+Fix loading portlets with `@@render-portlet` [petschki]

plone/app/portlets/browser/utils.py

@@ -27,7 +27,6 @@ def render_portlet(self, portlethash, **kw):
                  manager, assignment.data),
                 IPortletRenderer
             )
-        renderer = renderer.__of__(self.context)
 
         renderer.update()
         if IDeferredPortletRenderer.providedBy(renderer):

plone/app/portlets/tests/test_utils.py

@@ -1,15 +1,23 @@
 # -*- coding: utf-8 -*-
+from Products.CMFPlone.utils import safe_unicode
+
 from plone.app.testing import TEST_USER_ID
 
-from zope.component import getUtility, getMultiAdapter
+from zope.component import getMultiAdapter
+from zope.component import getUtility
 
-from plone.portlets.interfaces import IPortletManager
 from plone.portlets.interfaces import IPortletAssignmentMapping
+from plone.portlets.interfaces import IPortletManager
+from plone.portlets.interfaces import IPortletRenderer
 
-from plone.portlets.constants import USER_CATEGORY, CONTEXT_CATEGORY
+from plone.portlets.constants import CONTEXT_CATEGORY
+from plone.portlets.constants import USER_CATEGORY
+from plone.portlets.utils import hashPortletInfo
 
-from plone.app.portlets.storage import PortletAssignmentMapping
+from plone.app.portlets.browser.utils import PortletUtilities
 from plone.app.portlets.portlets import classic
+from plone.app.portlets.portlets import news
+from plone.app.portlets.storage import PortletAssignmentMapping
 from plone.app.portlets.tests.base import PortletsTestCase
 from plone.app.portlets.utils import assignment_from_key
 
@@ -49,8 +57,34 @@ def testGetPortletFromUserCategory(self):
         self.assertEqual(c, a)
 
 
+class TestRendering(PortletsTestCase):
+
+    def afterSetUp(self):
+        self.portal.invokeFactory('News Item', 'testnews', title=u'Test News')
+
+    def testTraversalRendererWithHash(self):
+        context = self.folder
+        request = self.folder.REQUEST
+        manager = getUtility(
+            IPortletManager, name='plone.leftcolumn', context=self.folder)
+        assignment = news.Assignment(state=('private', ))
+        mapping = getMultiAdapter(
+            (context, manager), IPortletAssignmentMapping)
+        mapping['newsportlet'] = assignment
+        portlet_hash = hashPortletInfo(
+            dict(manager=manager.__name__, category=CONTEXT_CATEGORY,
+                 key='/'.join(context.getPhysicalPath()),
+                 name='newsportlet'))
+        render_portlet_view = PortletUtilities(context, request)
+        rendered_portlet = render_portlet_view.render_portlet(
+            safe_unicode(portlet_hash))
+        self.assertIn(u'portletNews', rendered_portlet)
+        self.assertIn(u'Test News', rendered_portlet)
+
+
 def test_suite():
     from unittest import TestSuite, makeSuite
     suite = TestSuite()
     suite.addTest(makeSuite(TestAssignmentFromKey))
+    suite.addTest(makeSuite(TestRendering))
     return suite