Exercício 41

backend/src/trepr/intranet/subscribers/area.py

@@ -1,6 +1,7 @@
 from trepr.intranet import logger
 from trepr.intranet.content.area import Area
 from zope.lifecycleevent import ObjectAddedEvent
+from zope.lifecycleevent import ObjectModifiedEvent
 
 
 def _update_excluded_from_nav(obj: Area):
@@ -13,3 +14,8 @@ def _update_excluded_from_nav(obj: Area):
 def added(obj: Area, event: ObjectAddedEvent):
     """Post creation handler for Area."""
     _update_excluded_from_nav(obj)
+
+
+def modified(obj: Area, event: ObjectModifiedEvent):
+    """Post modified handler for Area."""
+    _update_excluded_from_nav(obj)

backend/src/trepr/intranet/subscribers/configure.zcml

@@ -6,4 +6,10 @@
       handler=".area.added"
       />
 
+  <subscriber
+      for="trepr.intranet.content.area.IArea
+           zope.lifecycleevent.IObjectModifiedEvent"
+      handler=".area.modified"
+      />
+
 </configure>

backend/tests/content/test_content_area.py

@@ -3,6 +3,8 @@
 from plone.dexterity.fti import DexterityFTI
 from trepr.intranet.content.area import Area
 from zope.component import createObject
+from zope.event import notify
+from zope.lifecycleevent import ObjectModifiedEvent
 
 import pytest
 
@@ -95,3 +97,15 @@ def test_subscriber_added_without_description_value(self, area_payload):
             payload["description"] = ""
             area = api.content.create(container=container, **payload)
         assert area.exclude_from_nav is True
+
+    def test_subscriber_modified(self, area_payload):
+        container = self.portal
+        with api.env.adopt_roles(["Manager"]):
+            area = api.content.create(container=container, **area_payload)
+        assert area.exclude_from_nav is False
+        # Altera a descricao
+        area.description = ""
+        # Dispara o evento de modificacao
+        notify(ObjectModifiedEvent(area))
+        # Agora o objeto desaparece da navegação
+        assert area.exclude_from_nav is True