[backend] Suppression documents : amélioration script suppression

backend/controllers/DocumentController.php

 
                 $model->delete();
 
-                Order::updateAll([
-                        'order.id_delivery_note' => null
-                ], [
-                        'order.id_delivery_note' => $id
-                ]);
+                if($this->getClass() == 'DeliveryNote') {
+                        Order::updateAll([
+                                'order.id_delivery_note' => null
+                        ], [
+                                'order.id_delivery_note' => $id
+                        ]);
+                }
+
+                if($this->getClass() == 'Quotation') {
+                        Order::updateAll([
+                                'order.id_quotation' => null
+                        ], [
+                                'order.id_quotation' => $id
+                        ]);
+                }
+
+                if($this->getClass() == 'Invoice') {
+                        Order::updateAll([
+                                'order.id_invoice' => null
+                        ], [
+                                'order.id_invoice' => $id
+                        ]);
+                }
 
                 Yii::$app->getSession()->setFlash('success', $this->getFlashMessage('delete', $model));
                 $this->redirect([$this->getControllerUrl().'/index']);