provide an IContentListingObject adapter

news/410.feature

@@ -0,0 +1,2 @@
+Provide an IContentListingObject adapter
+[erral]

plone/app/event/adapters.py

@@ -0,0 +1,22 @@
+from plone.app.contentlisting.interfaces import IContentListingObject
+from plone.app.contentlisting.realobject import RealContentListingObject
+from zope.interface import implementer
+
+
+@implementer(IContentListingObject)
+class OccurrenceContentListingObject(RealContentListingObject):
+
+    def __getattr__(self, name):
+        """We'll override getattr so that we can defer name lookups to
+        the real underlying objects without knowing the names of all
+        attributes.
+        """
+        if name.startswith("_"):
+            raise AttributeError(name)
+        obj = self.getObject()
+        # we need to override the behavior of RealContentListingObject
+        # because Occurrence objects rely on acquisition to show their title
+        # and other attributes
+        if hasattr(obj, name):
+            return getattr(obj, name)
+        raise AttributeError(name)

plone/app/event/configure.zcml

@@ -67,4 +67,11 @@
       name="plone.app.event"
       />
 
+
+  <adapter
+      factory=".adapters.OccurrenceContentListingObject"
+      for="plone.event.interfaces.IOccurrence"
+      zcml:condition="installed plone.app.contentlisting"
+      />
+
 </configure>

plone/app/event/tests/test_recurrence.py

@@ -1,6 +1,8 @@
 from OFS.SimpleItem import SimpleItem
+from plone.app.contentlisting.interfaces import IContentListingObject
 from plone.app.event.base import get_events
 from plone.app.event.base import RET_MODE_ACCESSORS
+from plone.app.event.base import RET_MODE_OBJECTS
 from plone.app.event.dx.traverser import OccurrenceTraverser
 from plone.app.event.recurrence import Occurrence
 from plone.app.event.testing import PAEvent_INTEGRATION_TESTING
@@ -352,3 +354,55 @@ def test_recurrence_occurrences_with_range_start_and_end(self):
 
         # Subsequent ones are IOccurrence objects
         self.assertTrue(IOccurrence.providedBy(result[1]))
+
+
+class TestRecurrenceContentListingSupport(unittest.TestCase):
+    """test that content listing objects are correctly serialized in plone.app.contentlisting objects"""
+
+    layer = PAEventDX_INTEGRATION_TESTING
+
+    def setUp(self):
+        self.portal = self.layer["portal"]
+        self.request = self.layer["request"]
+
+        set_browserlayer(self.request)
+        set_env_timezone(TZNAME)
+        set_timezone(TZNAME)
+
+        now = patched_now()
+
+        setRoles(self.portal, TEST_USER_ID, ["Manager"])
+        self.daily = createContentInContainer(
+            self.portal,
+            "plone.app.event.dx.event",
+            id="daily",
+            title="Daily Event",
+            start=now,
+            end=now + datetime.timedelta(hours=1),
+            location="Vienna",
+            recurrence="RRULE:FREQ=DAILY;COUNT=4",
+        )
+
+    def test_recurrence_objects_adapted_to_content_listing_objects(self):
+        res = get_events(self.portal, ret_mode=RET_MODE_OBJECTS, expand=True)
+
+        self.assertEqual(len(res), 4)
+
+        first_item = res[0]
+        second_item = res[1]
+
+        first_content_listing_object = IContentListingObject(first_item)
+        second_content_listing_object = IContentListingObject(second_item)
+
+        self.assertEqual(first_content_listing_object.Title(), first_item.Title())
+        self.assertEqual(second_content_listing_object.Title(), second_item.Title())
+
+        self.assertEqual(first_content_listing_object.start, first_item.start)
+        self.assertEqual(second_content_listing_object.start, second_item.start)
+
+        self.assertEqual(first_content_listing_object.end, first_item.end)
+        self.assertEqual(second_content_listing_object.end, second_item.end)
+
+        self.assertTrue(
+            first_content_listing_object.start < second_content_listing_object.start
+        )