From 8276d951fc1ab00e3b6b989fb3f2b594d41ba3a9 Mon Sep 17 00:00:00 2001
From: Coleman Watts <coleman@civicrm.org>
Date: Tue, 13 Aug 2019 16:52:18 -0400
Subject: [PATCH] Fix backward compat issues with file hash

---
 includes/wf_crm_webform_base.inc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/includes/wf_crm_webform_base.inc b/includes/wf_crm_webform_base.inc
index c8fc31309..5a6124e1a 100755
--- a/includes/wf_crm_webform_base.inc
+++ b/includes/wf_crm_webform_base.inc
@@ -948,11 +948,11 @@ abstract class wf_crm_webform_base {
       $entity_id = $this->ent[$entity][$n]['id'];
     }
     if (!empty($file[$val])) {
-      $fileHash = CRM_Core_BAO_File::generateFileHash($entity_id, $val);
+      $fileHash = is_callable(array('CRM_Core_BAO_File', 'generateFileHash')) ? '&fcs=' . CRM_Core_BAO_File::generateFileHash($entity_id, $val) : '';
       return array(
         'data_type' => 'File',
         'name' => CRM_Utils_File::cleanFileName($file[$val]['uri']),
-        'file_url'=> CRM_Utils_System::url('civicrm/file', "reset=1&id={$val}&eid={$entity_id}&fcs={$fileHash}", TRUE),
+        'file_url'=> CRM_Utils_System::url('civicrm/file', "reset=1&id={$val}&eid={$entity_id}{$fileHash}", TRUE),
         'icon' => file_icon_url((object) array('filemime' => $file[$val]['mime_type'])),
       );
     }