first upload all files

Modules/Setting/Http/Controllers/Admin/SettingController.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Modules\Setting\Http\Controllers\Admin;
+
+use Illuminate\Support\Facades\Artisan;
+use Modules\Admin\Ui\Facades\TabManager;
+use Modules\Setting\Http\Requests\UpdateSettingRequest;
+
+class SettingController
+{
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function edit()
+    {
+        $settings = setting()->all();
+        $tabs = TabManager::get('settings');
+
+        return view('setting::admin.settings.edit', compact('settings', 'tabs'));
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\Response
+     */
+    public function update(UpdateSettingRequest $request)
+    {
+        $this->handleMaintenanceMode($request);
+
+        setting($request->except('_token', '_method'));
+
+        return redirect(non_localized_url())
+            ->with('success', trans('setting::messages.settings_have_been_saved'));
+    }
+
+    private function handleMaintenanceMode($request)
+    {
+        if ($request->maintenance_mode) {
+            Artisan::call('down');
+        } elseif (app()->isDownForMaintenance()) {
+            Artisan::call('up');
+        }
+    }
+}