added notes about "undefined method model" when reform/rails is not i…

…ncluded properly.
thehappycoder · Nov 6, 2013 · 173a6a3 · 173a6a3
1 parent f78f563
commit 173a6a3
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -402,8 +402,12 @@ Nesting forms only requires readers for the nested properties as `Album#songs`.
 
 Check out [@gogogarret](https://twitter.com/GoGoGarrett/)'s [sample Rails app](https://github.com/gogogarrett/reform_example) using Reform.
 
-Rails and Reform work out-of-the-box. If you're using Rails but for some reason wanna use the pure reform, `require reform/form`, only.
+Rails and Reform work together out-of-the-box.
 
+However, you should know about two things.
+
+1. In case you explicitely _don't_ want to have automatic support for `ActiveRecord` and form builder: `require reform/form`, only.
+2. In some setups around Rails 4 the `Form::ActiveRecord` module is not loaded properly, usually triggering a `NoMethodError` saying "undefined method `model'". If that happened to you, `require 'reform/rails'` manually at the bottom of your `config/application.rb`.
 
 ## ActiveRecord Compatibility