From eef25687e5f7c7e201309a740454ca55e629bd74 Mon Sep 17 00:00:00 2001
From: Jitendra Purohit <jitendra@fuzion.co.nz>
Date: Mon, 20 Jan 2020 11:26:47 +0530
Subject: [PATCH] Add user friendly error message on merge error

---
 CRM/Contact/Form/Merge.php | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/CRM/Contact/Form/Merge.php b/CRM/Contact/Form/Merge.php
index 326a035508..2c3d2cb35c 100644
--- a/CRM/Contact/Form/Merge.php
+++ b/CRM/Contact/Form/Merge.php
@@ -87,11 +87,16 @@ class CRM_Contact_Form_Merge extends CRM_Core_Form {
       if (!$this->_rgid) {
         // Unset browse URL as we have come from the search screen.
         $browseUrl = '';
-        $this->_rgid = civicrm_api3('RuleGroup', 'getvalue', [
-          'contact_type' => $this->_contactType,
-          'used' => 'Supervised',
-          'return' => 'id',
-        ]);
+        try {
+          $this->_rgid = civicrm_api3('RuleGroup', 'getvalue', [
+            'contact_type' => $this->_contactType,
+            'used' => 'Supervised',
+            'return' => 'id',
+          ]);
+        }
+        catch (Exception $e) {
+          throw new CRM_Core_Exception(ts('There is no Supervised dedupe rule configured for contact type %1.', [1 => $this->_contactType]));
+        }
       }
       $this->assign('browseUrl', $browseUrl);
       if ($browseUrl) {
-- 
2.25.1