Filter template for use with jbrien/spree_sunspot_search

_brand.html.erb

<div class="filter" data-field="<%= filter.search_param %>">
  <h4 class="filter-title"><%= t :shop_by_taxonomy, :taxonomy => filter.display_name %></h4>
  <ul class="filter_choices">
   <select name="<%= "s[#{filter.search_param}][]" %>" class="sidebar" size="10" multiple="true">
    <% options = [] %>
    <% filter.html_values.each_with_index.each do |hv, index| %>
    <% options << hv[:value] %>
    <% end %>
    <% sortopts = options.sort %>
    <% sortopts.each do |hv| %>
      <% selected = params[:s][filter.search_param].include? hv.to_s if params[:s] and params[:s][filter.search_param].present? %>
      <% if selected %>
        <option value="<%= hv %>" selected><%= hv %></option>
      <% else %>
        <option value="<%= hv %>"><%= hv %></option>
      <% end %>
    <% end %>
    </select>
  </ul>
</div>