added a way to set default values for route variables

src/Silex/Controller.php

@@ -82,6 +82,19 @@ class Controller
         return $this;
     }
 
+    /**
+     * Sets the default value for a route variable.
+     *
+     * @param string $variable The variable name
+     * @param mixed  $default  The default value
+     */
+    public function value($variable, $default)
+    {
+        $this->route->setDefault($variable, $default);
+
+        return $this;
+    }
+
     /**
      * Freezes the controller.
      *

tests/Silex/Tests/ControllerTest.php

@@ -51,6 +51,15 @@ class ControllerTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(array('bar' => '\d+'), $controller->getRoute()->getRequirements());
     }
 
+    public function testValue()
+    {
+        $controller = new Controller(new Route('/foo/{bar}'));
+        $ret = $controller->value('bar', 'foo');
+
+        $this->assertSame($ret, $controller);
+        $this->assertEquals(array('bar' => 'foo'), $controller->getRoute()->getDefaults());
+    }
+
     /**
      * @dataProvider provideRouteAndExpectedRouteName
      */