added Route*::getLink

SE/se-lib/RouteBase.php

@@ -21,6 +21,13 @@ class RouteBase {
 		die("default task not implemented");
 	}
 
+	public function getLink($task = '') {
+		$clsName = get_class($this);
+		if ('Route_' != substr($clsName, 0, strlen('Route_'))) throw new Exception("Wrong route class name '{$clsName}'");
+		$routeName = substr($clsName, strlen('Route_'));
+		return Request::getPathUri() . "index.php?_route={$routeName}" . (!empty($task) ? "&_task={$task}" : "");
+	}
+
 	public function runTask($task) {
 		if (empty($task)) throw new Exception("Empty method name");
 		$methodName = "{$task}Action";