Fix SendNotificationEmail job for archived invoices

app/Jobs/SendNotificationEmail.php

@@ -7,13 +7,16 @@ use App\Ninja\Mailers\UserMailer;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Queue\InteractsWithQueue;
 use Illuminate\Queue\SerializesModels;
+use App\Models\Traits\SerialisesDeletedModels;
 
 /**
  * Class SendInvoiceEmail.
  */
 class SendNotificationEmail extends Job implements ShouldQueue
 {
-    use InteractsWithQueue, SerializesModels;
+    use InteractsWithQueue, SerializesModels, SerialisesDeletedModels {
+        SerialisesDeletedModels::getRestoredPropertyValue insteadof SerializesModels;
+    }
 
     /**
      * @var User

app/Models/Traits/SerialisesDeletedModels.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Models\Traits;
+
+use Illuminate\Contracts\Database\ModelIdentifier;
+
+/**
+ * Class SerialisesDeletedModels
+ * @see https://github.com/laravel/framework/issues/9347#issuecomment-165647596
+ */
+trait SerialisesDeletedModels
+{
+    /**
+     * @param $value
+     * @return mixed
+     */
+    protected function getRestoredPropertyValue($value)
+    {
+        if (!$value instanceof ModelIdentifier) {
+            return $value;
+        }
+
+        if (is_array($value->id)) {
+            return $this->restoreCollection($value);
+        }
+
+        $instance = new $value->class;
+        $query = $instance->newQuery()->useWritePdo();
+
+        if (property_exists($instance, 'forceDeleting')) {
+            return $query->withTrashed()->find($value->id);
+        }
+
+        return $query->findOrFail($value->id);
+    }
+}