separate checking installation as a middleware

app/Http/Controllers/SetupController.php

@@ -18,31 +18,18 @@ class SetupController extends Controller
 {
     public function welcome()
     {
-        // already installed
-        if (self::checkTablesExist()) {
-            return view('setup.locked');
-        } else {
-            $config = config('database.connections.mysql');
+        $config = config('database.connections.mysql');
 
-            return view('setup.wizard.welcome')->with('server', "{$config['username']}@{$config['host']}");
-        }
+        return view('setup.wizard.welcome')->with('server', "{$config['username']}@{$config['host']}");
     }
 
     public function info()
     {
-        if (self::checkTablesExist()) {
-            return view('setup.locked');
-        }
-
         return view('setup.wizard.info');
     }
 
     public function finish(Request $request)
     {
-        if (self::checkTablesExist()) {
-            return view('setup.locked');
-        }
-
         $this->validate($request, [
             'email'     => 'required|email',
             'password'  => 'required|min:6|max:16|confirmed',

app/Http/Kernel.php

@@ -47,6 +47,7 @@ class Kernel extends HttpKernel
         'auth'   => \App\Http\Middleware\CheckAuthenticated::class,
         'guest'  => \App\Http\Middleware\RedirectIfAuthenticated::class,
         'admin'  => \App\Http\Middleware\CheckAdministrator::class,
-        'player' => \App\Http\Middleware\CheckPlayerExist::class
+        'player' => \App\Http\Middleware\CheckPlayerExist::class,
+        'setup'  => \App\Http\Middleware\CheckInstallation::class,
     ];
 }

app/Http/Middleware/CheckInstallation.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use App\Http\Controllers\SetupController;
+
+class CheckInstallation
+{
+    public function handle($request, \Closure $next)
+    {
+        if (SetupController::checkTablesExist()) {
+            return response()->view('setup.locked');
+        }
+
+        return $next($request);
+    }
+}

app/Http/Routes/setup.php

@@ -16,9 +16,11 @@
  */
 Route::group(['prefix' => 'setup'], function ()
 {
-    Route::get ('/',         'SetupController@welcome');
-    Route::get ('/info',     'SetupController@info');
-    Route::post('/finish',   'SetupController@finish');
+    Route::group(['middleware' => 'setup'], function () {
+        Route::get ('/',         'SetupController@welcome');
+        Route::get ('/info',     'SetupController@info');
+        Route::post('/finish',   'SetupController@finish');
+    });
 
     Route::get ('/update',   'SetupController@update');
     Route::post('/update',   'SetupController@doUpdate');