link_to_active

link_to_active.rb

  # controller名でactiveを判断
  # controller_name or [controller_name] or current_page(root_path)
  def link_to_active(href, condition, wrapper: 'li', **options, &block)
    active = condition == true ||
             condition == controller.controller_name ||
             (condition.include?(controller.controller_name) if condition.is_a?(Array))

    wrapper_tag = wrapper
    wrapper_class = ''
    wrapper_tag, wrapper_class = wrapper.first if wrapper.is_a?(Hash)
    options ||= {}

    if wrapper_tag.nil?
      options[:class] ||= ''
      options[:class] += ' active' if active
      link_to href, options, &block
    else
      content_tag(wrapper_tag, class: "#{wrapper_class} #{(' active' if active)}") do
        link_to href, options, &block
      end
    end
  end