From c91ffdb6b2eaa3a0fb00e57c1ed61c9f4e4ba5d4 Mon Sep 17 00:00:00 2001
From: Luca Bellenghi <lucabel@gmail.com>
Date: Thu, 7 Mar 2024 13:06:41 +0100
Subject: [PATCH] add adapter for rss event item

---
 src/redturtle/volto/adapters/configure.zcml   |  7 +++++++
 src/redturtle/volto/adapters/rss.py           | 19 +++++++++++++++++++
 ...Plone.browser.syndication.templates.RSS.pt |  2 +-
 3 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 src/redturtle/volto/adapters/rss.py

diff --git a/src/redturtle/volto/adapters/configure.zcml b/src/redturtle/volto/adapters/configure.zcml
index 9d54aa3d..7887b463 100644
--- a/src/redturtle/volto/adapters/configure.zcml
+++ b/src/redturtle/volto/adapters/configure.zcml
@@ -37,4 +37,11 @@
         provides="plone.restapi.interfaces.IBlockFieldLinkIntegrityRetriever"
         />
   </configure>
+
+  <adapter
+      factory=".rss.EventItem"
+      provides="plone.base.interfaces.syndication.IFeedItem"
+      for="plone.app.contenttypes.interfaces.IEvent
+           plone.base.interfaces.syndication.IFeed"
+      />
 </configure>
diff --git a/src/redturtle/volto/adapters/rss.py b/src/redturtle/volto/adapters/rss.py
new file mode 100644
index 00000000..535570f5
--- /dev/null
+++ b/src/redturtle/volto/adapters/rss.py
@@ -0,0 +1,19 @@
+from plone.base.interfaces.syndication import IFeed
+from plone.app.contenttypes.interfaces import IEvent
+from Products.CMFPlone.browser.syndication.adapters import DexterityItem
+from zope.component import adapter
+from DateTime import DateTime
+
+
+@adapter(IEvent, IFeed)
+class EventItem(DexterityItem):
+
+    @property
+    def startdate(self):
+        """
+        Same format as other dates in 
+        Products.CMFPlone.browser.syndication.adapters
+        """
+        date = self.context.start.isoformat()
+        if date:
+            return DateTime(date)
diff --git a/src/redturtle/volto/browser/overrides/Products.CMFPlone.browser.syndication.templates.RSS.pt b/src/redturtle/volto/browser/overrides/Products.CMFPlone.browser.syndication.templates.RSS.pt
index b62afb5d..eb2bbdd3 100644
--- a/src/redturtle/volto/browser/overrides/Products.CMFPlone.browser.syndication.templates.RSS.pt
+++ b/src/redturtle/volto/browser/overrides/Products.CMFPlone.browser.syndication.templates.RSS.pt
@@ -56,7 +56,7 @@
     <tal:block tal:repeat="item item/categories">
       <dc:subject tal:content="item">Item</dc:subject>
     </tal:block>
-    <dc:date tal:content="item/published/HTML4|item/modified/HTML4">Published or last modified date if no published date</dc:date>
+    <dc:date tal:content="item/startdate/HTML4|item/published/HTML4|item/modified/HTML4">Published or last modified date if no published date</dc:date>
     <dc:type tal:content="item/context/portal_type">Type</dc:type>
   </item>
 </tal:block>