feat(router): route redirects

modules/angular2/src/router/route_config.js

@@ -6,7 +6,7 @@ import {List, Map} from 'angular2/src/facade/collection';
  *
  * Supported keys:
  * - `path` (required)
- * - `component` or `components` (requires exactly one of these)
+ * - `component`, `components`, `redirectTo` (requires exactly one of these)
  * - `as` (optional)
  */
 export class RouteConfig {

modules/angular2/src/router/route_registry.js

@@ -13,14 +13,14 @@ export class RouteRegistry {
   }
 
   config(parentComponent, config) {
-
     if (!StringMapWrapper.contains(config, 'path')) {
       throw new BaseException('Route config does not contain "path"');
     }
 
     if (!StringMapWrapper.contains(config, 'component') &&
-        !StringMapWrapper.contains(config, 'components')) {
+        !StringMapWrapper.contains(config, 'components') &&
-      throw new BaseException('Route config does not contain "component" or "components"');
+        !StringMapWrapper.contains(config, 'redirectTo')) {
+      throw new BaseException('Route config does not contain "component," "components," or "redirectTo"');
     }
 
     var recognizer:RouteRecognizer;
@@ -33,6 +33,11 @@ export class RouteRegistry {
 
     config = normalizeConfig(config);
 
+    if (StringMapWrapper.contains(config, 'redirectTo')) {
+      recognizer.addRedirect(StringMapWrapper.get(config, 'path'), StringMapWrapper.get(config, 'redirectTo'));
+      return;
+    }
+
     var components = StringMapWrapper.get(config, 'components');
     StringMapWrapper.forEach(components, (component, _) => {
       this.configFromComponent(component);
@@ -152,8 +157,6 @@ function normalizeConfig(config:StringMap) {
     });
 
     return newConfig;
-  } else if (!StringMapWrapper.contains(config, 'components')) {
-    throw new BaseException('Config does not include a "component" or "components" key.');
   }
   return config;
 }

modules/angular2/test/router/outlet_spec.js

@@ -117,6 +117,20 @@ export function main() {
     }));
 
 
+    it('should work with redirects', inject([AsyncTestCompleter, Location], (async, location) => {
+      compile()
+        .then((_) => rtr.config({'path': '/original', 'redirectTo': '/redirected' }))
+        .then((_) => rtr.config({'path': '/redirected', 'component': A }))
+        .then((_) => rtr.navigate('/original'))
+        .then((_) => {
+          view.detectChanges();
+          expect(view.rootNodes).toHaveText('A');
+          expect(location.urlChanges).toEqual(['/redirected']);
+          async.done();
+        });
+    }));
+
+
     it('should generate link hrefs', inject([AsyncTestCompleter], (async) => {
       ctx.name = 'brian';
       compile('<a href="hello" router-link="user" [router-params]="{name: name}">{{name}}</a>')