PSPAYPAL-722 Freeze products in backend for paypal order

Author: mparienti

metadata.php

@@ -10,6 +10,7 @@
 use OxidEsales\Eshop\Application\Controller\OrderController;
 use OxidEsales\Eshop\Application\Controller\PaymentController;
 use OxidEsales\Eshop\Application\Controller\Admin\OrderMain;
+use OxidEsales\Eshop\Application\Controller\Admin\OrderArticle;
 use OxidEsales\Eshop\Application\Controller\Admin\OrderOverview;
 use OxidEsales\Eshop\Application\Model\Article;
 use OxidEsales\Eshop\Application\Model\Basket;
@@ -26,6 +27,7 @@
 use OxidSolutionCatalysts\PayPal\Controller\Admin\PayPalConfigController;
 use OxidSolutionCatalysts\PayPal\Controller\Admin\PayPalOrderController;
 use OxidSolutionCatalysts\PayPal\Controller\Admin\OrderMain as PayPalOrderMainController;
+use OxidSolutionCatalysts\PayPal\Controller\Admin\OrderArticle as PayPalOrderArticleController;
 use OxidSolutionCatalysts\PayPal\Controller\Admin\OrderOverview as PayPalOrderOverviewController;
 use OxidSolutionCatalysts\PayPal\Controller\OrderController as PayPalFrontEndOrderController;
 use OxidSolutionCatalysts\PayPal\Controller\PaymentController as PayPalPaymentController;
@@ -81,6 +83,7 @@
         UserComponent::class => PayPalUserComponent::class,
         BasketComponent::class => PayPalBasketComponent::class,
         OrderMain::class => PayPalOrderMainController::class,
+        OrderArticle::class => PayPalOrderArticleController::class,
         OrderOverview::class => PayPalOrderOverviewController::class,
         State::class => PayPalState::class
     ],

src/Controller/Admin/OrderArticle.php

@@ -0,0 +1,35 @@
+<?php
+
+/**
+ * Copyright © OXID eSales AG. All rights reserved.
+ * See LICENSE file for license details.
+ */
+
+namespace OxidSolutionCatalysts\PayPal\Controller\Admin;
+
+/**
+* OrderArticle class
+*
+* @mixin \OxidEsales\Eshop\Application\Controller\Admin\OrderArticle
+*/
+class OrderArticle extends OrderArticle_parent
+{
+    public function render()
+    {
+        $parent = parent::render();
+
+        if ($order = $this->getEditObject()) {
+            if ( $order->paidWithPayPal() ||
+                 $order->paidWithPayPalPlus()||
+                 $order->paidWithPayPalSoap()
+            ) {
+                $capture = $order->getOrderPaymentCapture();
+                if (!is_null($capture)) {
+                    $this->_aViewData["readonly"] = true;
+                }
+            }
+        }
+
+        return $parent;
+    }
+}