向控制器Ruby on Rails中的所有相关动作添加活动类

Question

I am using the following helper to add is_active css class to active links in my navigation bar.

# application_helper.rb
def active_link_to(name = nil, options = nil, html_options = nil, &block)
  active_class = html_options[:active] || "is_active"
  html_options.delete(:active)
  html_options[:class] = "#{html_options[:class]} #{active_class}" if current_page?(options)
  link_to(name, options, html_options, &block)
end

This code works perfectly. However, I want to keep is_active class on every page which related to the controller. For example, here is my controller route:

# routes.rb
resources :catalogs, path: "s", only: [:index, :show] do
  resources :products, path: "", only: [:show]
end

and imagine that I have 100 different catalogs. I want to keep is_active on the index page, while the user switches show pages.

Link in my navigation bar:

= active_link_to "Products", catalog_path(1), class: "navbar_link"

Please note, that in the previous line I am navigation to the very first catalog, not to the index page.

Thank you for your help and time!

Answer 1

You can try active_link_to gem, which does exactly what you want. It would be something like this (not tested)

active_link_to 'Products', catalog_path(1), active: [['catalogs'], ['index', 'show']], class_active: 'is_active'