method
helper_method

helper_method(*methods)
public
Declare a controller method as a helper. For example,
helper_method :link_to def link_to(name, options) ... end
makes the link_to controller method available in the view.
helper_method(*methods)
public
Declare a controller method as a helper. For example,
helper_method :link_to def link_to(name, options) ... end
makes the link_to controller method available in the view.