add "activity_url" property to Status, and corresponding STATUS_ACTIVITY_URL template to settings

kepi/kepi/settings.py

@@ -43,6 +43,7 @@ KEPI = {
         'USER_LINK': '/users/%(username)s',
         'COLLECTION_LINK': '/users/%(username)s/%(listname)s',
         'STATUS_LINK': '/users/%(username)s/%(id)s',
+        'STATUS_ACTIVITY_LINK': '/users/%(username)s/%(id)s/activity',
         'STATUS_FEED_LINK': '/users/%(username)s/feed/%(id)s',
         'USER_FEED_LINK': '/users/%(username)s/feed',
         'USER_WEBFINGER_LINK': '/.well-known/webfinger?resource=acct:%(username)s@%(hostname)s',

kepi/trilby_api/models/status.py

@@ -193,6 +193,18 @@ class Status(PolymorphicModel):
                 'id': self.id,
                 })
 
+    @property
+    def activity_url(self):
+        if self.remote_url is not None:
+            raise ValueError(
+                    "Activity URL is not stored for remote statuses",
+                    )
+
+        return uri_to_url(settings.KEPI['STATUS_ACTIVITY_LINK'] % {
+                'username': self.account.username,
+                'id': self.id,
+                })
+
     @property
     def ancestors(self):