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Ransackでor検索機能を作る。

Posted at

使用環境

rails 6.0.2
ubuntu (WSL)

手順

gemインストール

gem 'ransack'

bundleを忘れずに。

内容の検索

post_controllerは既に作ってあるものとします。

posts_controller.rb
  def index
    unless params[:q].blank?
       #入力された単語を空白で分割
      split_keyword = params[:q][:content_cont].split(/\p{blank}/)
    end
    @q = Post.ransack(content_cont_any: split_keyword)
    @posts = @q.result
  end

入力(検索ワード)があるか調べる。
ここがないとエラーになると思う。

.rb
unless params[:q].blnak?

検索フォーム

posts/index.html.slim
 = search_form_for @q, class: 'mb-5 search-container' do |f|
   .form-group.row
     = f.search_field :content_cont, placeholder: "キーワードを入力してください", class: "form-control"
     = f.submit class: "btn btn-outline-primary"

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