close #108 Enhancement: Added currency_code request rule..

Author: cuneytsenturk

src/Provider.php

@@ -5,6 +5,7 @@
 use Illuminate\Support\Facades\Blade;
 use Illuminate\Support\ServiceProvider;
 use Illuminate\View\Compilers\BladeCompiler;
+use Illuminate\Support\Facades\Validator;
 
 class Provider extends ServiceProvider
 {
@@ -28,10 +29,32 @@ public function boot(): void
 
         Currency::setCurrencies($currencies ?? []);
 
+        $this->registerValidationRules();
         $this->registerBladeDirectives();
         $this->registerBladeComponents();
     }
 
+    public function registerValidationRules(): void
+    {
+        $currency_code = null;
+
+        Validator::extend('currency_code', function ($attribute, $value, $parameters, $validator) use(&$currency_code) {
+            $status = false;
+
+            $currency_code = $value;
+
+            $currencies = config('money.currencies');
+
+            if (array_key_exists($value, $currencies)) {
+                $status = true;
+            }
+
+            return $status;
+        },
+            trans('validation.custom.invalid_currency', ['attribute' => $currency_code])
+        );
+    }
+
     public function registerBladeDirectives(): void
     {
         $this->callAfterResolving('blade.compiler', function (BladeCompiler $bladeCompiler) {