プルダウン検索で該当する情報を表示させたい

  self.data = [
    { id: 1, name: '--' },
    { id: 2, name: '野菜' },
    { id: 3, name: '果物' },
    { id: 4, name: '魚' },
    { id: 5, name: '肉' },
    { id: 6, name: '惣菜' },
    { id: 7, name: '乳製品' },
    { id: 8, name: '調味料' },
    { id: 9, name: 'アイス' },
    { id: 10, name: '冷凍食品' },
    { id: 11, name: 'お菓子' },
    { id: 12, name: '加工食品' },
    { id: 13, name: 'パン類' },
    { id: 14, name: 'その他' }
  ]

class ClassificationsController < ApplicationController
  before_action :search_category, only: [:index, :search]

  def index 
    @user = current_user
    @items = @user.items
    @wants = @user.wants
  end


  def search
    @results= @classification.result
  end

  def show
  end

  private

  def search_category
    @classification= Classification.ransack(params[:q])
   # 検索オブジェクトを生成
  end

end

 <div class="search-data">
      <h3>商品検索</h3>
      <%= search_form_for @classification, url: classifications_search_path do |f| %> 
        <%= f.label :category_id, '商品検索' %>
        <%= f.collection_select :category_id, Category.all, :id, :name %>
        <%= f.submit '検索' %>
      <% end %>
      <br>
       <%= search_form_for @classification, url: classifications_search_path do |f| %>
         <%= f.label :categori_id, '商品検索' %>
         <%= f.collection_select :categori_id, Categori.all, :id, :name %>
         <%= f.submit '検索' %>
      <% end %> 
    </div>

<h1>検索結果</h1>
<% if @results.present? %>
  <% @results.each do |result| %>
    <td>
    <br>
    <li>
      <%= result.thing %>
      <%= result.category.name %>
    </li>
  <% end %>
<% else %>
  該当する商品はありません
<% end %>