Lesson8 prototype

Author: muraikenta

app/assets/javascripts/likes.js

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+// Place all the behaviors and hooks related to the matching controller here.
+// All this logic will automatically be available in application.js.

app/assets/stylesheets/likes.scss

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+.note-show .note .like {
+  margin: 0;
+  color: gray;
+}
+
+.note-show .note .unlike {
+  margin: 0;
+  color: #bb428f;
+}
+
+.likes-link {
+  margin: 30px 0;
+}
+
+.likes-link a {
+  background-color: rgba(187, 66, 143, 0.92);
+  color: white;
+  padding: 10px;
+}

app/controllers/likes_controller.rb

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+class LikesController < ApplicationController
+  before_action :authenticate_user, only: [:create, :destroy]
+
+  def index
+    @user = User.find_by(id: params[:user_id])
+  end
+
+  def create
+    @like = Like.new(user_id: @current_user.id, note_id: params[:note_id])
+    @like.save
+    flash[:notice] = 'お気に入りに登録しました'
+    redirect_to "/notes/#{params[:note_id]}"
+  end
+
+  def destroy
+    @like = Like.find_by(user_id: @current_user.id, note_id: params[:note_id])
+    @like.destroy
+    flash[:notice] = 'お気に入りから削除しました'
+    redirect_to "/notes/#{params[:note_id]}"
+  end
+end

app/helpers/likes_helper.rb

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+module LikesHelper
+end

app/models/like.rb

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+class Like < ApplicationRecord
+  belongs_to :user
+  belongs_to :note
+
+  validates :user_id, presence: true
+  validates :note_id, presence: true
+end

app/models/note.rb

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 class Note < ApplicationRecord
   belongs_to :user
-  
+  has_many :likes, dependent: :destroy
+
   validates :title, presence: true
   validates :content, presence: true
   validates :image, presence: true

app/models/user.rb

@@ -1,6 +1,7 @@
 class User < ApplicationRecord
   has_many :notes
-  
+  has_many :likes
+
   validates :name, presence: true
   validates :email, presence: true, uniqueness: true
   validates :password, presence: true

app/views/likes/create.html.erb

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+<h1>Likes#create</h1>
+<p>Find me in app/views/likes/create.html.erb</p>

app/views/likes/destroy.html.erb

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+<h1>Likes#destroy</h1>
+<p>Find me in app/views/likes/destroy.html.erb</p>

app/views/likes/index.html.erb

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+<div class="notes-index">
+  <h2>
+    <a href="/users/<%= @user.id%>"><%= @user.name %></a>
+    さんのお気に入り一覧
+  </h2>
+  <% @user.likes.each do |like| %>
+    <% note = like.note %>
+    <div class="notes-list-item">
+      <img src="<%= note.image %>">
+      <h3>
+        <a href="/notes/<%= note.id %>">
+          <%= note.title %>
+        </a>
+      </h3>
+    </div>
+  <% end %>
+</div>