From 5b3bb61f3fb82c7300d4dac374fe7aeafff6bda0 Mon Sep 17 00:00:00 2001 From: Piotr Sarnacki Date: Fri, 10 Aug 2012 23:27:51 +0200 Subject: Fix handling SCRIPT_NAME from within mounted engine's When you mount your application at a path, for example /myapp, server should set SCRIPT_NAME to /myapp. With such information, rails application knows that it's mounted at /myapp path and it should generate routes relative to that path. Before this patch, rails handled SCRIPT_NAME correctly only for regular apps, but it failed to do it for mounted engines. The solution was to hardcode default_url_options[:script_name], which is not the best answer - it will work only when application is mounted at a fixed path. This patch fixes the situation by respecting original value of SCRIPT_NAME when generating application's routes from engine and the other way round - when you generate engine's routes from application. This is done by using one of 2 pieces of information in env - current SCRIPT_NAME or SCRIPT_NAME for a corresponding router. This is because we have 2 cases to handle: - generating engine's route from application: in this situation SCRIPT_NAME is basically SCRIPT_NAME set by the server and it indicates the place where application is mounted, so we can just pass it as :original_script_name in url_options. :original_script_name is used because if we use :script_name, router will ignore generating prefix for engine - generating application's route from engine: in this situation we already lost information about the SCRIPT_NAME that server used. For example if application is mounted at /myapp and engine is mounted at /blog, at this point SCRIPT_NAME is equal /myapp/blog. Because of that we need to keep reference to /myapp SCRIPT_NAME by binding it to the current router. Later on we can extract it and use when generating url Please note that starting from now you *should not* use default_url_options[:script_name] explicitly if your server already passes correct SCRIPT_NAME to rack env. (closes #6933) --- railties/lib/rails/engine.rb | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'railties/lib/rails/engine.rb') diff --git a/railties/lib/rails/engine.rb b/railties/lib/rails/engine.rb index f469c334a7..40f35ae5a6 100644 --- a/railties/lib/rails/engine.rb +++ b/railties/lib/rails/engine.rb @@ -494,7 +494,11 @@ module Rails # Define the Rack API for this engine. def call(env) - app.call(env.merge!(env_config)) + env.merge!(env_config) + if env['SCRIPT_NAME'] + env.merge! "ROUTES_#{routes.object_id}_SCRIPT_NAME" => env['SCRIPT_NAME'].dup + end + app.call(env) end # Defines additional Rack env configuration that is added on each call. -- cgit v1.2.3