メンターの関連著書の表示を調整・開発環境用のデータを追加しました

app/controllers/welcome_controller.rb

@@ -4,7 +4,7 @@ class WelcomeController < ApplicationController
   layout 'welcome'
 
   def index
-    @mentors = User.with_attached_profile_image.mentor.includes(authored_books: { cover_attachment: :blob }).order(:created_at)
+    @mentors = User.mentors_sorted_by_created_at
   end
 
   def pricing; end

app/models/authored_book.rb

@@ -9,4 +9,6 @@ class AuthoredBook < ApplicationRecord
                       in: %w[image/png image/jpg image/jpeg image/gif],
                       message: 'はPNG, JPG, GIF形式にしてください'
                     }
+
+  scope :sorted, -> { order(created_at: :desc) }
 end

app/models/user.rb

@@ -292,6 +292,12 @@ class User < ApplicationRecord
   }
   scope :year_end_party, -> { where(retired_on: nil) }
   scope :mentor, -> { where(mentor: true) }
+  scope :mentors_sorted_by_created_at, lambda {
+    with_attached_profile_image
+      .mentor
+      .includes(authored_books: { cover_attachment: :blob })
+      .order(:created_at)
+  }
   scope :working, lambda {
     active.where(
       adviser: false,

app/views/welcome/_mentor.html.slim

@@ -33,7 +33,7 @@ section.welcome-member.a-card
   - if mentor.authored_books.present?
     .welcome-member-books
       ul.welcome-member-books__items
-        - mentor.authored_books.each do |authored_book|
+        - mentor.authored_books.sorted.each do |authored_book|
           - if authored_book.cover.attached?
             li.welcome-member-books__item
               = link_to authored_book.url, target: :_blank, rel: 'noopener noreferrer', class: 'welcome-member-books__item-link' do

db/fixtures/authored_books.yml

@@ -0,0 +1,17 @@
+authored_book1:
+  user: mentormentaro
+  title: Rubyのひみつ
+  url: https://www.example.com
+  created_at: "2022-03-01 00:00:01"
+
+authored_book2:
+  user: mentormentaro
+  title: 3ステップでしっかり学ぶ ruby入門
+  url: https://www.amazon.co.jp/dp/4774195022/
+  created_at: "2022-02-01 00:00:01"
+
+authored_book3:
+  user: mentormentaro
+  title: スラスラ読める Rubyふりがなプログラミング (ふりがなプログラミングシリーズ)
+  url: https://www.amazon.co.jp/dp/4295005908/
+  created_at: "2022-01-01 00:00:01"

db/seeds.rb

@@ -46,6 +46,7 @@
   organizers
   hibernations
   footprints
+  authored_books
 ]
 
 ActiveRecord::FixtureSet.create_fixtures 'db/fixtures', tables

lib/bootcamp/setup.rb

@@ -12,6 +12,7 @@ def attachment
         attach_user_avatar!
         attach_company_logo!
         attach_book_cover!
+        attach_authored_book_cover!
       end
 
       private
@@ -54,6 +55,14 @@ def attach_book_cover!
           book.cover.attach(io: File.open(path), filename: filename) if File.exist?(path)
         end
       end
+
+      def attach_authored_book_cover!
+        AuthoredBook.order(:created_at).each_with_index do |authored_book, i|
+          filename = "#{i + 1}.png"
+          path = Rails.root.join("#{fixtures_dir}/fixtures/files/authored_books/#{filename}")
+          authored_book.cover.attach(io: File.open(path), filename: filename) if File.exist?(path)
+        end
+      end
     end
   end
 end