From 6a1d902de7f3b11be995c0e78531a6b209be12e8 Mon Sep 17 00:00:00 2001
From: Jordan Dukart <jordan@discoverygarden.ca>
Date: Thu, 23 Jan 2014 20:17:13 +0000
Subject: [PATCH] Force re-load an object when purging so we don't try to
 access things that no longer exist in Fedora.

---
 includes/tuque_wrapper.inc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/includes/tuque_wrapper.inc b/includes/tuque_wrapper.inc
index 98e9c62c..d30af147 100644
--- a/includes/tuque_wrapper.inc
+++ b/includes/tuque_wrapper.inc
@@ -298,7 +298,14 @@ class IslandoraFedoraApiM extends FedoraApiM {
 
         default:
           $ret = parent::purgeDatastream($pid, $dsid, $params);
-          islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_PURGED_HOOK, $object->models, $dsid, $object, $dsid);
+          // We need to remove this object from the cache and reload it as
+          // Tuque may not have an updated copy. That is the datastream could
+          // still be present within the object even though it's purged out of
+          // Fedora.
+          $tuque = islandora_get_tuque_connection();
+          $tuque->cache->delete($pid);
+          $non_cached_object = islandora_object_load($pid);
+          islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_PURGED_HOOK, $non_cached_object->models, $dsid, $non_cached_object, $dsid);
           return $ret;
       }
     }