Common helpers in Rails?

Are there any plugins o开发者_运维知识库r tutorials available for common helpers which provide list of helpers ?

Like,

current_action? current_controller?

I know it's depends on the project but still there should be some helpers which we can use in most of the projects.

Any Idea ?

Yes there are.

You current controller action name can be accessed by controller.action_name

and current controller name by controller.controller_name