class RuboCop::Cop::Rails::RelativeDateConstant

def autocorrect(corrector, node)
  return unless node.casgn_type?
  scope, const_name, value = *node
  return unless scope.nil?
  indent = ' ' * node.loc.column
  new_code = ["def self.#{const_name.downcase}", "#{indent}#{value.source}", 'end'].join("\n#{indent}")
  corrector.replace(node, new_code)
end