Ruby on Rails

So far, I don't get any results returned

user.rb:

searchkick  word_middle: ['full_name', 'description', 'interests']

 def full_name
  [first_name, last_name].join(' ')
 end
 
 def search_data
   {
   full_name: full_name,
   description: description,
   interests: interests
   }
 end

world_controller.rb

def search
  @terms=params[:terms]
  search = params[:terms].present? ? params[:terms] : nil
    @users = if search
       User.search(search)
    end
end   

world_controller.rb

  @users = User.search(params[:terms]).where("confirmed_at is not null")

search.html.erb

<h3><%= (t 'search_results_for') %> <%= @terms %></h3>
<ul>
 <% @users.each do |u| %>
  <li>
      <%= link_to "#{u.first_name} #{u.middle_name} #{u.last_name}", page_path(name: u.name) %>
        <% ua=u.addresses.where("current=?", true) %>
        <% if ua.country=="US" %>
            <%= ua.city %>, <%= ua.state %> <%= ISO3166::Country.find_country_by_alpha2(ua.country) %>
        <% else %>
            <%= ua.city %>, <%= ISO3166::Country.find_country_by_alpha2(ua.country) %>
        <% end %>
  </li>
 <% end %>
</ul>