From 6e36c320642b687204bb72bc1b95a067df785859 Mon Sep 17 00:00:00 2001
From: Coleman Watts <coleman@civicrm.org>
Date: Sat, 11 Nov 2017 11:32:04 -0500
Subject: [PATCH] CRM-21421 - Api case update should not re-save case contacts

---
 api/v3/Case.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/api/v3/Case.php b/api/v3/Case.php
index bc263b0944..1cac5fd009 100644
--- a/api/v3/Case.php
+++ b/api/v3/Case.php
@@ -123,7 +123,7 @@ function civicrm_api3_case_create($params) {
     throw new API_Exception('Case not created. Please check input params.');
   }
 
-  if (isset($params['contact_id'])) {
+  if (isset($params['contact_id']) && !isset($params['id'])) {
     foreach ((array) $params['contact_id'] as $cid) {
       $contactParams = array('case_id' => $caseBAO->id, 'contact_id' => $cid);
       CRM_Case_BAO_CaseContact::create($contactParams);
@@ -217,6 +217,7 @@ function _civicrm_api3_case_create_spec(&$params) {
     'description' => 'Contact id of case client(s)',
     'api.required' => 1,
     'type' => CRM_Utils_Type::T_INT,
+    'FKApiName' => 'Contact',
   );
   $params['status_id']['api.default'] = 1;
   $params['status_id']['api.aliases'] = array('case_status');
-- 
2.25.1