ZO-4687: Make date_last_modified independent of DAV server

core/docs/changelog/ZO-4687.change

@@ -0,0 +1 @@
+ZO-4687: Make date_last_modified independent of DAV server

core/src/zeit/cms/checkout/manager.py

@@ -1,4 +1,5 @@
 import grokcore.component as grok
+import pendulum
 import zope.app.locking.interfaces
 import zope.cachedescriptors.property
 import zope.component
@@ -133,11 +134,13 @@ def checkin(self, event=True, semantic_change=None, ignore_conflicts=False, publ
                 self.context.uniqueId, 'Cannot checkin: %s' % reason
             )
         workingcopy = self.context.__parent__
+
         sc = zeit.cms.content.interfaces.ISemanticChange(self.context)
         if semantic_change is None:
             semantic_change = sc.has_semantic_change
         if semantic_change:
             sc.update()
+
         if event:
             zope.event.notify(
                 zeit.cms.checkout.interfaces.BeforeCheckinEvent(
@@ -164,6 +167,9 @@ def checkin(self, event=True, semantic_change=None, ignore_conflicts=False, publ
                 else:
                     msg = _('Checked in')
                 zeit.objectlog.interfaces.ILog(added).log(msg)
+        dc = zope.dublincore.interfaces.IDCTimes(added)
+        if not publishing:
+            dc.modified = pendulum.now()
         lockable = zope.app.locking.interfaces.ILockable(added, None)
         # Since publishing starts and ends with its own lock()/unlock(), it
         # would be premature to already unlock during the cycle() step.

core/src/zeit/cms/content/dublincore.py

@@ -2,7 +2,9 @@
 import pendulum
 import zope.dublincore.interfaces
 
+from zeit.cms.content.interfaces import WRITEABLE_LIVE
 import zeit.cms.content.dav
+import zeit.cms.interfaces
 import zeit.cms.repository.interfaces
 import zeit.cms.workingcopy.interfaces
 
@@ -15,7 +17,10 @@ class RepositoryDCTimes(zeit.cms.content.dav.DAVPropertiesAdapter):
         zope.dublincore.interfaces.IDCTimes['created'], 'DAV:', 'creationdate'
     )
     modified = zeit.cms.content.dav.DAVProperty(
-        zope.dublincore.interfaces.IDCTimes['modified'], 'DAV:', 'getlastmodified'
+        zope.dublincore.interfaces.IDCTimes['modified'],
+        zeit.cms.interfaces.DOCUMENT_SCHEMA_NS,
+        'date-last-modified',
+        writeable=WRITEABLE_LIVE,
     )