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method

underscore

rails latest stable - Class: ActiveSupport::CoreExtensions::String::Inflections

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

underscore()
public

The reverse of camelize. Makes an underscored, lowercase form from the expression in the string.

underscore will also change ’::’ to ’/’ to convert namespaces to paths. 

  "ActiveRecord".underscore         # => "active_record"
  "ActiveRecord::Errors".underscore # => active_record/errors