Merge Invoice and Bill into Document

modules/BC21/Http/Requests/Sale/InvoiceHistory.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Http\Requests\Sale;
+
+use App\Http\Requests\Document\DocumentHistory;
+
+/**
+ * @deprecated
+ * @see DocumentHistory
+ */
+class InvoiceHistory extends DocumentHistory
+{
+    public function rules()
+    {
+        $rules = parent::rules();
+
+        $rules['invoice_id'] = $rules['document_id'];
+
+        unset($rules['document_id'], $rules['type']);
+
+        return $rules;
+    }
+}