Module ActionController::Macros
In: vendor/rails/actionpack/lib/action_controller/macros/in_place_editing.rb
vendor/rails/actionpack/lib/action_controller/macros/auto_complete.rb

Macros are class-level calls that add pre-defined actions to the controller based on the parameters passed in. Currently, they’re used to bridge the JavaScript macros, like autocompletion and in-place editing, with the controller backing.

[Validate]