From 82a7f74580e2d0d5197766666bccd7273a2c96ee Mon Sep 17 00:00:00 2001
From: Tim Otten <totten@civicrm.org>
Date: Fri, 3 Jun 2022 21:44:35 -0700
Subject: [PATCH] Add experimental setting `enableBackgroundQueue`

---
 CRM/Admin/Form/Setting/Miscellaneous.php           |  1 +
 settings/Core.setting.php                          | 14 ++++++++++++++
 templates/CRM/Admin/Form/Setting/Miscellaneous.tpl |  6 ++++++
 3 files changed, 21 insertions(+)

diff --git a/CRM/Admin/Form/Setting/Miscellaneous.php b/CRM/Admin/Form/Setting/Miscellaneous.php
index dfe75c761f..722fef9cda 100644
--- a/CRM/Admin/Form/Setting/Miscellaneous.php
+++ b/CRM/Admin/Form/Setting/Miscellaneous.php
@@ -26,6 +26,7 @@ class CRM_Admin_Form_Setting_Miscellaneous extends CRM_Admin_Form_Setting {
     'contact_undelete' => CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME,
     'empoweredBy' => CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME,
     'logging' => CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME,
+    'enableBackgroundQueue' => CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME,
     'maxFileSize' => CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME,
     'doNotAttachPDFReceipt' => CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME,
     'recordGeneratedLetters' => CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME,
diff --git a/settings/Core.setting.php b/settings/Core.setting.php
index 4992ef8c90..c52fe9b1bc 100644
--- a/settings/Core.setting.php
+++ b/settings/Core.setting.php
@@ -239,6 +239,20 @@ return [
     'description' => NULL,
     'help_text' => NULL,
   ],
+  'enableBackgroundQueue' => [
+    'group_name' => 'CiviCRM Preferences',
+    'group' => 'core',
+    'name' => 'enableBackgroundQueue',
+    'type' => 'Boolean',
+    'quick_form_type' => 'YesNo',
+    'default' => 0,
+    'add' => '5.51',
+    'title' => ts('Background Queues'),
+    'is_domain' => 1,
+    'is_contact' => 0,
+    'description' => ts('EXPERIMENTAL: %1', [1 => ts('If enabled, some operations will be transferred to background workers. This requires configuring a background service.')]),
+    'help_text' => NULL,
+  ],
   'defaultExternUrl' => [
     'group_name' => 'CiviCRM Preferences',
     'group' => 'core',
diff --git a/templates/CRM/Admin/Form/Setting/Miscellaneous.tpl b/templates/CRM/Admin/Form/Setting/Miscellaneous.tpl
index bb7fc8892c..25df8e2b46 100644
--- a/templates/CRM/Admin/Form/Setting/Miscellaneous.tpl
+++ b/templates/CRM/Admin/Form/Setting/Miscellaneous.tpl
@@ -41,6 +41,12 @@
         {/if}
         </td>
       </tr>
+      <tr class="crm-miscellaneous-form-block-enableBackgroundQueue">
+        <td class="label">{$form.enableBackgroundQueue.label}</td>
+        <td>{$form.enableBackgroundQueue.html}<br />
+          <span class="description">{$setting_descriptions.enableBackgroundQueue}</span>
+        </td>
+      </tr>
       <tr class="crm-miscellaneous-form-block-doNotAttachPDFReceipt">
         <td class="label">{$form.doNotAttachPDFReceipt.label}</td>
         <td>{$form.doNotAttachPDFReceipt.html}<br />
-- 
2.25.1