[12.x] Fix nested can and inherit models on route groups

src/Illuminate/Routing/Route.php

@@ -1008,7 +1008,9 @@ public function setAction(array $action)
         }
 
         if (isset($this->action['can'])) {
-            $this->can($this->action['can']);
+            foreach ($this->action['can'] as $can) {
+                $this->can($can[0], $can[1] ?? []);
+            }
         }
 
         return $this;

src/Illuminate/Routing/RouteRegistrar.php

@@ -297,6 +297,10 @@ public function __call($method, $parameters)
                 return $this->attribute($method, is_array($parameters[0]) ? $parameters[0] : $parameters);
             }
 
+            if ($method === 'can') {
+                return $this->attribute($method, [$parameters]);
+            }
+
             return $this->attribute($method, array_key_exists(0, $parameters) ? $parameters[0] : true);
         }
 

src/Illuminate/Routing/Router.php

@@ -1516,6 +1516,10 @@ public function __call($method, $parameters)
             return (new RouteRegistrar($this))->attribute($method, is_array($parameters[0]) ? $parameters[0] : $parameters);
         }
 
+        if ($method === 'can') {
+            return (new RouteRegistrar($this))->attribute($method, [$parameters]);
+        }
+
         if ($method !== 'where' && Str::startsWith($method, 'where')) {
             return (new RouteRegistrar($this))->{$method}(...$parameters);
         }

tests/Routing/RouteRegistrarTest.php

@@ -909,6 +909,29 @@ public function testCanSetMiddlewareCanOnGroups()
         $this->seeMiddleware('can:test');
     }
 
+    public function testCanSetMiddlewareCanWithModelsOnGroups()
+    {
+        $this->router->can('view', 'post')->group(function ($router) {
+            $router->get('/post/{post}');
+        });
+
+        $this->seeMiddleware('can:view,post');
+    }
+
+    public function testCanSetMiddlewareCanNestedOnGroups()
+    {
+        $this->router->can('access-admin')->group(function ($router) {
+            $router->can('edit', 'post')->group(function ($router) {
+                $router->get('/post/{post}/edit');
+            });
+        });
+
+        $this->assertEquals([
+            'can:access-admin',
+            'can:edit,post',
+        ], $this->getRoute()->middleware());
+    }
+
     public function testCanSetMiddlewareForSpecifiedMethodsOnRegisteredResource()
     {
         $this->router->resource('users', RouteRegistrarControllerStub::class)

tests/Routing/RoutingRouteTest.php

@@ -2219,6 +2219,15 @@ public function testRouteCanMiddlewareCanBeAssigned()
         $this->assertEquals([
             'can:create',
         ], $route->middleware());
+
+        $route = new Route(['GET'], '/', []);
+        $route->can('create');
+        $route->can('update');
+
+        $this->assertEquals([
+            'can:create',
+            'can:update',
+        ], $route->middleware());
     }
 
     public function testItDispatchesEventsWhilePreparingRequest()