[backend] user/credit : bug lors de l'ajout de crédit (set mean payment pendant l'enregistrement du CreditHistory)

common/models/CreditHistory.php

             $userProducer->save();
             
             // set mean payment
-            $order = Order::searchOne(['id' => $this->id_order]) ;
-            $paymentStatus = $order->getPaymentStatus() ;
-            if($paymentStatus == Order::PAYMENT_PAID 
-                || $paymentStatus == Order::PAYMENT_SURPLUS) {
-                $order->mean_payment = MeanPayment::CREDIT ;
-                $order->save() ;
+            if($this->id_order && $this->id_order > 0) {
+                $order = Order::searchOne(['id' => (int) $this->id_order]) ;
+                if($order) {
+                    $paymentStatus = $order->getPaymentStatus() ;
+                    if($paymentStatus == Order::PAYMENT_PAID 
+                        || $paymentStatus == Order::PAYMENT_SURPLUS) {
+                        $order->mean_payment = MeanPayment::CREDIT ;
+                        $order->save() ;
+                    }
+                }
             }
+            
                     
             // seuil limite de crédit
             $newCredit = $userProducer->credit ;