FIX: fix login

Login should work again. Problem was in non-setting sessions. This was resolved by adding middleware "web" to admin group. Thanks to great documentation for NOT MENTIONING this pitfall!

app/Http/Middleware/Authenticate.php

@@ -10,19 +10,20 @@ class Authenticate
     /**
      * Handle an incoming request.
      *
-     * @param  \Illuminate\Http\Request  $request
-     * @param  \Closure  $next
-     * @param  string|null  $guard
+     * @param  \Illuminate\Http\Request $request
+     * @param  \Closure                 $next
+     * @param  string|null              $guard
+     *
      * @return mixed
      */
     public function handle($request, Closure $next, $guard = null)
     {
-        if (!Auth::check($guard)) {
+        if (!Auth::guard($guard)->check()) {
             if ($request->ajax()) {
                 return response('Unauthorized.', 401);
             }
 
-            return redirect()->guest('login');
+            return redirect()->route('login');
         }
 
         return $next($request);

app/Http/Middleware/RedirectIfAuthenticated.php

@@ -18,7 +18,7 @@ class RedirectIfAuthenticated
     public function handle($request, Closure $next, $guard = null)
     {
         if (Auth::guard($guard)->check()) {
-            return redirect('/');
+            return redirect()->route('admin.dashboard');
         }
 
         return $next($request);