close #663 Fixed: Invoice/Bill add item row missing currency code broken

app/Http/Requests/Income/InvoiceAddItem.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Http\Requests\Income;
+
+use App\Http\Requests\Request;
+
+class InvoiceAddItem extends Request
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+    public function authorize()
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            'item_row' => 'required|integer',
+            'currency_code' => 'required|string|currency',
+        ];
+    }
+}