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二つのテーブルから検索する機能を実装しました。

Posted at

今回はarticlsテーブルとresolutionsテーブルから検索するコードを掲載します。

1.アソシエーションの状況
Image from Gyazo
2.ルーティングの設定

routes.rb
Rails.application.routes.draw do
  devise_for :users 
  root to: 'users#index'
  resources :resolutions 
    
  resources :articles
  resources :users do
    collection do
      get 'search'
    end
  end
end

3.コントローラーの記述

users_controller.rb
lass UsersController < ApplicationController

  def index
    @resolutions = Resolution.includes(:user).order('created_at DESC')
    @articles = Article.includes(:user).order('created_at DESC')
  end

  def show
    @user = User.find(params[:id])
    @resolutions = @user.resolutions.order('created_at DESC')
    @articles = @user.articles.order('created_at DESC')
  end

  def search
    @resolutions = Resolution.search(params[:keyword])
    @articles = Article.search(params[:keyword])
  end

end

4.モデルの記述

article.rb
class Article < ApplicationRecord
  validates :title,   presence: true
  validates :content, presence: true
  belongs_to :user

  def self.search(search)
    if search != ''
      Article.where('title LIKE(?)', "%#{search}%")
    else
      Article.all
    end
  end
end
resolution.rb
class Resolution < ApplicationRecord
  validates :erroe_message, presence: true
  validates :language, presence: true
  validates :status, presence: true
  validates :code, presence: true
  validates :cauce, presence: true
  belongs_to :user

  def self.search(search)
    if search != ''
      Resolution.where('erroe_message LIKE(?) OR status LIKE(?)', "%#{search}%", "%#{search}%")
    else
      Resolution.all
    end
  end
end

5.htmlの記述

  • トップ画面(検索画面がある画面)
users/index.html.erb
<%= form_with(url: search_users_path, local: true, method: :get, class: "search-form") do |form| %>
   <%= form.text_field :keyword, placeholder: "投稿を検索する", class: "search-input" %>
   <%= form.submit "検索", class: "search-btn" %>
<% end %>
  • 検索結果画面
users/serch.html.erb
<div class="contents row">
<div class="title-name">検索結果</div>
  <% @resolutions.each do |resolution| %>
    <%= render partial: "resolutions/resolution", locals: { resolution: resolution } %>
  <% end %>
   <% @articles.each do |article| %>
    <%= render partial: "articles/article", locals: { article: article } %>
  <% end %>
</div>

結論

今回はこのコードの記述でなんとか実装することができました。
どちらとも紐づいているuserを活用することでうまく実装できました。

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