From b249a14869e683620fcce08ebc1f813daa44058e Mon Sep 17 00:00:00 2001
From: Michael Devery <michael@compucorp.co.uk>
Date: Tue, 15 May 2018 12:02:44 +0100
Subject: [PATCH] dev/core#55 Remove option to delete option value for locked
 groups

---
 CRM/Core/OptionValue.php | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/CRM/Core/OptionValue.php b/CRM/Core/OptionValue.php
index 33860b52c8..b22bd0097a 100644
--- a/CRM/Core/OptionValue.php
+++ b/CRM/Core/OptionValue.php
@@ -72,14 +72,14 @@ class CRM_Core_OptionValue {
    */
   public static function getRows($groupParams, $links, $orderBy = 'weight', $skipEmptyComponents = TRUE) {
     $optionValue = array();
-
     $optionGroupID = NULL;
+    $isGroupLocked = FALSE;
+
     if (!isset($groupParams['id']) || !$groupParams['id']) {
       if ($groupParams['name']) {
-        $config = CRM_Core_Config::singleton();
-
         $optionGroup = CRM_Core_BAO_OptionGroup::retrieve($groupParams, $dnc);
         $optionGroupID = $optionGroup->id;
+        $isGroupLocked = (bool) $optionGroup->is_locked;
       }
     }
     else {
@@ -146,6 +146,11 @@ class CRM_Core_OptionValue {
         }
       }
 
+      // disallow deletion of option values for locked groups
+      if ($isGroupLocked) {
+        $action -= CRM_Core_Action::DELETE;
+      }
+
       $optionValue[$dao->id]['label'] = htmlspecialchars($optionValue[$dao->id]['label']);
       $optionValue[$dao->id]['order'] = $optionValue[$dao->id]['weight'];
       $optionValue[$dao->id]['icon'] = CRM_Utils_Array::value('icon', $optionValue[$dao->id], '');
-- 
2.25.1