From fe88acfafe2ee8da97197b1155ab80edbb490704 Mon Sep 17 00:00:00 2001
From: Coleman Watts <coleman@civicrm.org>
Date: Mon, 1 May 2017 14:51:55 -0400
Subject: [PATCH] CRM-20097 - Accept url default for link case form

---
 CRM/Case/Form/Activity/LinkCases.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/CRM/Case/Form/Activity/LinkCases.php b/CRM/Case/Form/Activity/LinkCases.php
index 466dda292fd8..294b1d03774f 100644
--- a/CRM/Case/Form/Activity/LinkCases.php
+++ b/CRM/Case/Form/Activity/LinkCases.php
@@ -70,7 +70,11 @@ public static function preProcess(&$form) {
    * @return array
    */
   public static function setDefaultValues(&$form) {
-    return $defaults = array();
+    $defaults = array();
+    if (!empty($_GET['link_to_case_id']) && CRM_Utils_Rule::positiveInteger($_GET['link_to_case_id'])) {
+      $defaults['link_to_case_id'] = $_GET['link_to_case_id'];
+    }
+    return $defaults;
   }
 
   /**