メッセージ機能

app/controllers/messages_controller.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class MessagesController < ApplicationController
+  def create
+    @message = current_user.messages.build(message_params)
+    if @message.save
+      redirect_to request.referer
+    else
+      redirect_to request.referer, flash: { danger: 'メッセージ投稿に失敗しました。本文を確認してください。' }
+    end
+  end
+
+  private
+
+  def message_params
+    permit_params = params.require(:message).permit(:content)
+    permit_params.merge(room_id: params[:room_id])
+  end
+end

app/controllers/rooms_controller.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+class RoomsController < ApplicationController
+  before_action :set_user
+  before_action :set_room_infos, only: %i[index show]
+
+  def index; end
+
+  def show
+    room = current_user.rooms.find(params[:id])
+    @messages = room.messages.includes(:user).old.page(params[:page]).per(7)
+  end
+
+  def create
+    member_ids = [current_user.id, params[:user_id]]
+    existing_room = Room.search_existing_room(user_id: current_user.id, other_id: params[:user_id])
+    if existing_room
+      room = existing_room
+    else
+      room = Room.create
+      member_ids.each { |member_id| RoomMember.create(user_id: member_id, room_id: room.id) }
+    end
+
+    redirect_to action: :show, id: room.id
+  end
+
+  private
+
+  def set_room_infos
+    @room_infos = []
+    rooms = current_user.rooms.distinct.includes(:room_members).latest
+    rooms.map do |room|
+      room_info = {}
+      room_info[:room] = room
+      room_info[:user] = room.room_members.where.not(user_id: current_user.id).includes(:user).first.user
+      @room_infos << room_info
+    end
+  end
+end

app/models/message.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class Message < ApplicationRecord
+  belongs_to :user
+  belongs_to :room
+
+  validates :content, presence: true
+
+  scope :old, -> { order(created_at: :asc) }
+end

app/models/room.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+class Room < ApplicationRecord
+  has_many :room_members, dependent: :destroy
+  has_many :messages, dependent: :destroy
+
+  scope :latest, -> { order(created_at: :desc) }
+
+  def self.search_existing_room(user_id:, other_id:)
+    existing_room = nil
+    rooms = RoomMember.where(user_id:).map(&:room)
+    rooms.each do |room|
+      if room.room_members.find_by(user_id: other_id)
+        existing_room = room
+        break
+      end
+    end
+    existing_room
+  end
+end

app/models/room_member.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+class RoomMember < ApplicationRecord
+  belongs_to :user
+  belongs_to :room
+end

app/models/user.rb

@@ -36,10 +36,15 @@ class User < ApplicationRecord
   has_many :bookmarks, dependent: :destroy
   has_many :bookmarking_posts, through: :bookmarks, source: :post
 
+  has_many :room_members, dependent: :destroy
+  has_many :rooms, through: :room_members
+
+  has_many :messages, dependent: :destroy
+
   with_options presence: true do
     validates :name
     validates :user_name, uniqueness: true
-    # 電話番号と誕生日はGithubでの新規登録時には無効化する。
+    # 電話番号と誕生日は画面からの新規登録時以外は無効化する。
     validates :phone, unless: -> { validation_context == :not_new_form }
     validates :birthdate, unless: -> { validation_context == :not_new_form }
   end

app/views/messages/_message.html.slim

@@ -0,0 +1,20 @@
+- if message.user != current_user
+  .container-grid.my-2
+    .row
+      .col-7
+        .card.border.rounded.bg-light
+          .card-body
+            = safe_join(message.content.split("\n"),tag(:br))
+        .text-muted
+          = l message.created_at
+      .col
+- else
+  .container-grid.my-2
+    .row
+      .col
+      .col-7.align-self-end
+        .card.border.rounded.bg-primary
+          .card-body.text-white
+            = safe_join(message.content.split("\n"),tag(:br))
+        .text-muted.text-end
+          = l message.created_at

app/views/posts/_post_detail.html.slim

@@ -25,6 +25,11 @@
                   = link_to user_follows_path(post.user), data: { "turbo-method": :post }, class: "text-dark text-decoration-none d-flex align-items-center"
                     i.bi-person-add.mx-2
                     = "@#{post.user_user_name}さんをフォロー"
+              li
+                - if post.user != current_user
+                  = link_to user_rooms_path(post.user), data: { "turbo-method": :post }, class: "text-dark text-decoration-none d-flex align-items-center text-center"
+                    i.bi-envelope.mx-2
+                    = "@#{post.user_user_name}さんにメッセージを送る"
       .d-flex.flex-row
       - if post.content?
         span.card-text.my-2

app/views/rooms/_room_info.html.slim

@@ -0,0 +1,15 @@
+.card
+  div class="card-body container-grid #{'bg-light' if params[:id].to_i == room_info[:room].id}"
+    = link_to room_path(room_info[:room].id), data: { turbo: false }, class: "row post text-dark"
+      .col-3.d-flex.align-items-center
+        - if room_info[:user].photo.attached?
+          = image_tag room_info[:user].photo, class: "rounded-circle img-fluid", style: " max-width: 100%; height: auto;"
+      .col
+        .d-flex
+          p.fw-bold
+            = room_info[:user].name
+          p.text-muted.mx-2
+            | @
+            = room_info[:user].user_name
+        .text-muted
+          = l room_info[:room].created_at

app/views/rooms/index.html.slim

@@ -0,0 +1,11 @@
+.container-fluid
+  = render 'shared/navigation'
+  .row.flex-nowrap
+    = render 'shared/sidebar', :user => @user
+    .col-3.border-end
+      = render 'shared/flash'
+      h3.fw-bold.my-3
+        | メッセージ
+      - @room_infos.each do |room_info|
+        = render 'room_info', room_info:
+    .col

app/views/rooms/show.html.slim

@@ -0,0 +1,24 @@
+.container-fluid
+  = render 'shared/navigation'
+  .row.flex-nowrap
+    = render 'shared/sidebar', :user => @user
+    .col-3.border-end
+      = render 'shared/flash'
+      h3.fw-bold.my-3
+        | メッセージ
+      - @room_infos.each do |room_info|
+        = render 'room_info', room_info:
+    .col
+      h3.fw-bold.my-3
+        | メッセージ詳細
+      = render 'shared/flash'
+      - @messages.each do |message|
+        = render message
+      = paginate @messages
+      = form_with url: messages_path(room_id: params[:id]), model: Message.new , data: { turbo: false }, locale: true do |f|
+        .card.mb-3
+          .card-body
+            = f.text_area :content, class: 'form-control', placeholder: '新しいメッセージを作成', rows: 1
+            button.btn.btn-primary.text-white.rounded-circle.fw-bold.float-end.my-2[type="submit"]
+              i.bi-send
+

app/views/shared/_sidebar.html.slim

@@ -18,7 +18,7 @@
             span.ms-1.d-none.d-sm-inline[style="font-size:1.5rem"]
               | 通知
         li
-          a.nav-link.align-middle.text-dark.px-0.d-flex.align-items-center[href="#"]
+          = link_to rooms_path, data: { turbo: false }, class: "nav-link align-middle text-dark px-0 d-flex align-items-center"
             i.fs-4.bi-envelope.mx-2
             span.ms-1.d-none.d-sm-inline[style="font-size:1.5rem"]
               | メッセージ

config/routes.rb

@@ -15,10 +15,13 @@
 
   resources :users, only: %i[show edit update] do
     resources :follows, only: %i[create destroy]
+    resources :rooms, only: %i[create]
   end
 
   resources :bookmarks, only: %i[index]
   resources :comments, only: %i[create]
+  resources :rooms, only: %i[index show]
+  resources :messages, only: %i[create]
 
   root 'posts#index'
 end

db/migrate/20230926121616_create_rooms.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class CreateRooms < ActiveRecord::Migration[7.0]
+  def change
+    create_table :rooms, &:timestamps
+  end
+end

db/migrate/20230926121639_create_room_members.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class CreateRoomMembers < ActiveRecord::Migration[7.0]
+  def change
+    create_table :room_members do |t|
+      t.references :user, null: false, foreign_key: true
+      t.references :room, null: false, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20230926121703_create_messages.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class CreateMessages < ActiveRecord::Migration[7.0]
+  def change
+    create_table :messages do |t|
+      t.references :user, null: false, foreign_key: true
+      t.references :room, null: false, foreign_key: true
+      t.text :content, null: false
+
+      t.timestamps
+    end
+  end
+end

db/seeds.rb

@@ -24,6 +24,28 @@
   user_ids << user.id
 end
 
+user_ids.each do |user_id|
+  other_ids = user_ids.reject { |id| id == user_id }.sample(rand(1...USER_COUNT))
+
+  other_ids.each do |other_id|
+    member_ids = [user_id, other_id]
+    existing_room = Room.search_existing_room(user_id:, other_id:)
+    if existing_room
+      room = existing_room
+    else
+      room = Room.create!
+      member_ids.each { |member_id| RoomMember.create!(user_id: member_id, room_id: room.id) }
+    end
+    rand(0..15).times do |n|
+      Message.create!(
+        user_id: member_ids.sample,
+        room_id: room.id,
+        content: (existing_room ? '既存部屋です。' : '') + "テストコメント#{n}です。\nテストコメント#{n}です。\nテストコメント#{n}です。"
+      )
+    end
+  end
+end
+
 POST_COUNT.times do |n|
   post = Post.create!(
     user_id: user_ids.sample,
@@ -43,7 +65,7 @@
     user_id: user_ids.reject { |id| id == post.user_id }.sample,
     post_id: post.id
   )
-  rand(1..10).times do |m|
+  rand(0..10).times do |m|
     Comment.create!(
       user_id: user_ids.reject { |id| id == post.user_id }.sample,
       post_id: post.id,

spec/models/message_spec.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Message, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/room_member_spec.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe RoomMember, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/room_spec.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Room, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/requests/messages_spec.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Messages', type: :request do
+  describe 'GET /create' do
+    it 'returns http success' do
+      get '/messages/create'
+      expect(response).to have_http_status(:success)
+    end
+  end
+end