CMS for ecommerce website in rails

Are there any CMS available in rails which we can extends as per need for eco开发者_Go百科mmerce website ?

You can check out Spree and its source code.

Two Rails CMS' that I've come across several times are RefineryCMS and RadiantCMS. I think you would definitely want to be working in the context of Rails 3, since it's a better foundation for working with modularity in the form of engines.