Namespace
Methods
#
Instance Protected methods
_attribute(attr_name)

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/deprecated_underscore_read.rb, line 23
def _attribute(attr_name)
  ActiveSupport::Deprecation.warn(
    "You have called '_#{attr_name}'. This is deprecated. Please use "            "either '#{attr_name}' or read_attribute('#{attr_name}')."
  )
  read_attribute(attr_name)
end