fixed #402

app/Http/Requests/Request.php

@@ -2,36 +2,11 @@
 
 namespace App\Http\Requests;
 
-use App\Models\Setting\Currency;
-
 use Illuminate\Foundation\Http\FormRequest;
-use Illuminate\Validation\Factory as ValidationFactory;
 
 class Request extends FormRequest
 {
 
-    private $currency_code;
-
-    public function __construct(ValidationFactory $validation)
-    {
-        $validation->extend(
-            'currency',
-            function ($attribute, $currency_code, $parameters) {
-                $currency = false;
-                $currencies = Currency::enabled()->pluck('name', 'code')->toArray();
-
-                if (array_key_exists($currency_code, $currencies)) {
-                    $currency = true;
-                }
-
-                $this->currency_code = $currency_code;
-
-                return $currency;
-            },
-            trans('validation.custom.invalid_currency', ['attribute' => $this->currency_code])
-        );
-    }
-
     /**
      * Set the company id to the request.
      *

app/Providers/ValidationServiceProvider.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace App\Providers;
+
+use App\Models\Setting\Currency;
+use Illuminate\Support\ServiceProvider;
+use Validator;
+
+class ValidationServiceProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap any application services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        $currency_code = null;
+
+        Validator::extend('currency', function ($attribute, $value, $parameters, $validator) use(&$currency_code) {
+                $status = false;
+
+                $currencies = Currency::enabled()->pluck('name', 'code')->toArray();
+
+                if (array_key_exists($value, $currencies)) {
+                    $status = true;
+                }
+
+                $currency_code = $value;
+
+                return $status;
+            },
+            trans('validation.custom.invalid_currency', ['attribute' => $currency_code])
+        );
+    }
+
+    /**
+     * Register any application services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        //
+    }
+}

config/app.php

@@ -178,6 +178,7 @@ return [
         App\Providers\FormServiceProvider::class,
         App\Providers\ObserverServiceProvider::class,
         App\Providers\RouteServiceProvider::class,
+        App\Providers\ValidationServiceProvider::class,
         App\Providers\ViewComposerServiceProvider::class,
 
         /*