From a1ffaa362bfa0bf226eab00efd486c72a13e8337 Mon Sep 17 00:00:00 2001 From: Jeremy Wadsack Date: Thu, 4 Dec 2014 16:06:00 -0800 Subject: Add Guides note to change cache name space as Entry data is incompatible between 3.2 and 4.0 --- guides/source/upgrading_ruby_on_rails.md | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'guides/source') diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index 4ce61c282d..a3cccf5215 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -915,6 +915,10 @@ Also check your environment settings for `config.action_dispatch.best_standards_ Rails 4.0 removes the `j` alias for `ERB::Util#json_escape` since `j` is already used for `ActionView::Helpers::JavaScriptHelper#escape_javascript`. +#### Cache + +The caching method changed between Rails 3.x and 4.0. You should [change the cache namespace](http://guides.rubyonrails.org/caching_with_rails.html#activesupport-cache-store) and roll out with a cold cache. + ### Helpers Loading Order The order in which helpers from more than one directory are loaded has changed in Rails 4.0. Previously, they were gathered and then sorted alphabetically. After upgrading to Rails 4.0, helpers will preserve the order of loaded directories and will be sorted alphabetically only within each directory. Unless you explicitly use the `helpers_path` parameter, this change will only impact the way of loading helpers from engines. If you rely on the ordering, you should check if correct methods are available after upgrade. If you would like to change the order in which engines are loaded, you can use `config.railties_order=` method. -- cgit v1.2.3