[5.4] Fix overwriting of routes

src/Illuminate/Foundation/Console/RouteCacheCommand.php

@@ -58,6 +58,9 @@ public function fire()
             return $this->error("Your application doesn't have any routes.");
         }
 
+        $routes->refreshNameLookups();
+        $routes->refreshActionLookups();
+
         foreach ($routes as $route) {
             $route->prepareForSerialization();
         }

src/Illuminate/Foundation/Support/Providers/RouteServiceProvider.php

@@ -31,6 +31,7 @@ public function boot()
 
             $this->app->booted(function () {
                 $this->app['router']->getRoutes()->refreshNameLookups();
+                $this->app['router']->getRoutes()->refreshActionLookups();
             });
         }
     }

src/Illuminate/Routing/RouteCollection.php

@@ -113,7 +113,7 @@ protected function addToActionList($action, $route)
     /**
      * Refresh the name look-up table.
      *
-     * This is done in case any names are fluently defined.
+     * This is done in case any names are fluently defined or if routes are overwritten.
      *
      * @return void
      */
@@ -128,6 +128,25 @@ public function refreshNameLookups()
         }
     }
 
+    /**
+     * Refresh the action look-up table.
+     *
+     * This is done in case any actions are fluently defined or if routes are overwritten.
+     *
+     * @return void
+     */
+    public function refreshActionLookups()
+    {
+        $this->actionList = [];
+
+        foreach ($this->allRoutes as $route) {
+            $action = $route->getAction();
+            if (isset($action['controller'])) {
+                $this->addToActionList($action, $route);
+            }
+        }
+    }
+
     /**
      * Find the first route matching a given request.
      *

tests/Routing/RouteCollectionTest.php

@@ -165,4 +165,31 @@ public function testRouteCollectionCanGetAllRoutes()
         ];
         $this->assertEquals($allRoutes, $this->routeCollection->getRoutes());
     }
+
+    public function testRouteCollectionCleansUpOverwrittenRoutes()
+    {
+        // Create two routes with the same path and method.
+        $routeA = new Route('GET', 'product', ['controller' => 'View@view', 'as' => 'routeA']);
+        $routeB = new Route('GET', 'product', ['controller' => 'OverwrittenView@view', 'as' => 'overwrittenRouteA']);
+
+        $this->routeCollection->add($routeA);
+        $this->routeCollection->add($routeB);
+
+        // Check if the lookups of $routeA and $routeB are there.
+        $this->assertEquals($routeA, $this->routeCollection->getByName('routeA'));
+        $this->assertEquals($routeA, $this->routeCollection->getByAction('View@view'));
+        $this->assertEquals($routeB, $this->routeCollection->getByName('overwrittenRouteA'));
+        $this->assertEquals($routeB, $this->routeCollection->getByAction('OverwrittenView@view'));
+
+        // Rebuild the lookup arrays.
+        $this->routeCollection->refreshNameLookups();
+        $this->routeCollection->refreshActionLookups();
+
+        // The lookups of $routeA should not be there anymore, because they are no longer valid.
+        $this->assertNull($this->routeCollection->getByName('routeA'));
+        $this->assertNull($this->routeCollection->getByAction('View@view'));
+        // The lookups of $routeB are still there.
+        $this->assertEquals($routeB, $this->routeCollection->getByName('overwrittenRouteA'));
+        $this->assertEquals($routeB, $this->routeCollection->getByAction('OverwrittenView@view'));
+    }
 }