fix custom group configuration

EventListener/SystemConfigListener.php

@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Diglin\AutoCustomerGroupBundle\EventListener;
+
+use Doctrine\Persistence\ManagerRegistry;
+use Diglin\AutoCustomerGroupBundle\DependencyInjection\AutoCustomerGroupExtension;
+use Diglin\AutoCustomerGroupBundle\DependencyInjection\Configuration;
+use Oro\Bundle\ConfigBundle\Config\ConfigManager;
+use Oro\Bundle\ConfigBundle\Event\ConfigSettingsUpdateEvent;
+use Oro\Bundle\CustomerBundle\Entity\CustomerGroup;
+
+class SystemConfigListener
+{
+    protected ManagerRegistry $registry;
+
+    protected string $ownerClass;
+
+    public function __construct(ManagerRegistry $registry)
+    {
+        $this->registry = $registry;
+    }
+
+    public function onFormPreSetData(ConfigSettingsUpdateEvent $event): void
+    {
+        $settingsKey = implode(ConfigManager::SECTION_VIEW_SEPARATOR, [AutoCustomerGroupExtension::ALIAS, Configuration::ASSIGNMENT_CUSTOMER_GROUP]);
+        $settings = $event->getSettings();
+        if (is_array($settings)
+            && !empty($settings[$settingsKey]['value'])
+        ) {
+            $settings[$settingsKey]['value'] = $this->registry
+                ->getManagerForClass(CustomerGroup::class)
+                ->find(CustomerGroup::class, $settings[$settingsKey]['value']);
+            $event->setSettings($settings);
+        }
+    }
+
+    public function onSettingsSaveBefore(ConfigSettingsUpdateEvent $event): void
+    {
+        $settings = $event->getSettings();
+
+        if (!array_key_exists('value', $settings)) {
+            return;
+        }
+
+        if (!is_a($settings['value'], CustomerGroup::class)) {
+            return;
+        }
+
+        /** @var object $owner */
+        $owner = $settings['value'];
+        $settings['value'] = $owner->getId();
+        $event->setSettings($settings);
+    }
+}

Processors/AutoCustomerGroupAssignment.php

@@ -30,9 +30,9 @@ public function __construct(
 
     public function assignGroup($customerId): void
     {
-        $customerGroup = $this->getDefaultCustomerGroupAssignment();
-        // reload it due to cascade persist error
-        $customerGroup = $this->manager->getRepository(CustomerGroup::class)->find($customerGroup->getId());
+        $customerGroupId = $this->getDefaultCustomerGroupIdAssignment();
+        $customerGroup = $this->manager->getRepository(CustomerGroup::class)->find($customerGroupId);
+
         $customer = $this->manager->getRepository(Customer::class)->find($customerId);
 
         if ($customer && $customerGroup && $customerGroup instanceof CustomerGroup) {
@@ -43,9 +43,9 @@ public function assignGroup($customerId): void
     /**
      * TODO: test on OroCommerce EE with multiple websites / organisations
      */
-    protected function getDefaultCustomerGroupAssignment(): ?CustomerGroup
+    protected function getDefaultCustomerGroupIdAssignment(): int
     {
-        return $this->configManager->get(Configuration::getConfigKeyByName(Configuration::ASSIGNMENT_CUSTOMER_GROUP));
+        return (int)$this->configManager->get(Configuration::getConfigKeyByName(Configuration::ASSIGNMENT_CUSTOMER_GROUP));
     }
 
     protected function setGroup(CustomerGroup $group, Customer $customer): void

Resources/config/services.yml

@@ -5,3 +5,10 @@ services:
     arguments:
       - '@doctrine.orm.entity_manager'
       - '@oro_config.manager'
+
+  Diglin\AutoCustomerGroupBundle\EventListener\SystemConfigListener:
+    arguments:
+      - "@doctrine"
+    tags:
+      - { name: kernel.event_listener, event: oro_config.settings_form_preset, method: onFormPreSetData }
+      - { name: kernel.event_listener, event: oro_config.settings_before_save.diglin_customer_group.assignment_customer_group, method: onSettingsSaveBefore }