initial: bootstrap from BukidBountyApp base

app/Http/Controllers/Helpers/QueryHelper.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Helpers;
+
+
+use App\Models\FileList;
+use Hypervel\Http\Request;
+use App\Http\Controllers\FilesMainController;
+use Hypervel\Database\Eloquent\Model;
+
+class QueryHelper
+{
+
+    public static function findOrNullByHashOrId(
+        int|string|Model|false $hashOrId,
+        string $modelClass
+    ): false|Model {
+
+        if (!$hashOrId) {
+            return false;
+        }
+
+
+        if ($hashOrId instanceof Model) {
+            return $hashOrId;
+        }
+
+
+        if (!is_subclass_of($modelClass, Model::class)) {
+            throw new \InvalidArgumentException('Invalid model class');
+        }
+
+        if (is_int($hashOrId)) {
+            return $modelClass::find($hashOrId);
+        }
+
+        return $modelClass::where('hashkey', $hashOrId)->first();
+    }
+
+}