method
helper_method
v7.1.3.2 -
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Class: AbstractController::Helpers::ClassMethods
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- What's this?
helper_method(*methods)
public
Declare a controller method as a helper. For example, the following makes the current_user and logged_in? controller methods available to the view:
class ApplicationController < ActionController::Base helper_method :current_user, :logged_in? private def current_user @current_user ||= User.find_by(id: session[:user]) end def logged_in? current_user != nil end end
In a view:
<% if logged_in? -%>Welcome, <%= current_user.name %><% end -%>
Parameters
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method[, method] - A name or names of a method on the controller to be made available on the view.