Radio buttons and Sunspot

Product.rb

  searchable do
    text :name
    boolean :online_search
    boolean :offline_search
  end

  def online_search
    store.online_store == true
  end

  def offline_search
    store.online_store == false
  end
  
  def search_type=(boolean)
    case (boolean)
    when 'online'
      @online_search = true
      @offline_search = false
    when 'offline'
      @online_search = false
      @offline_search = true
    when 'all'
      @online_search = true
      @offline_search = true
    else
    @online_search = true
    @offline_search = true
    end
  end

search_controller.rb

class SearchController < ApplicationController
  
  def index
    @search = Product.search do |q|
      q.fulltext params[:search]
      q.with(:search_type, params[:search_type]) if params[:search_type].present?
    end
    @products = @search.results
  end
end

search_index.html.erb

<%= form_tag search_path, :method => 'get' do %>
        <%= text_field_tag :search, params[:search]" %>
        <%= submit_tag "Search", :name => nil %>
         <%= label_tag :search_type, "All" %>
           <%= radio_button_tag :search_type, "all" %>
         <%= label_tag :search_type, "Online" %>
           <%= radio_button_tag :search_type, "online" %>
         <%= label_tag :search_type, "Offline" %>
           <%= radio_button_tag :search_type, "offline" %>
<% end %>