質問編集履歴

モデルの追記

2019/08/30 05:03

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test CHANGED Viewed

@@ -215,3 +215,103 @@
 <li class="nav-item"><%= link_to 'カテゴリ', categories_path, class: 'nav-link js-scroll-trigger' %></li>
 ```
+```
+class Category < ApplicationRecord
+has_many :posts
+end
+```
+```
+class Post < ApplicationRecord
+belongs_to :user
+has_many :comments
+has_many :favorites, dependent: :destroy
+belongs_to :category
+def favorited_by?(user)
+favorites.where(user_id: user.id).exists?
+end
+end
+```
+```
+class CreateCategories < ActiveRecord::Migration[5.2]
+def change
+create_table :categories do |t|
+t.string :symptoms
+t.timestamps
+end
+end
+end
+```
+```
+class CreatePosts < ActiveRecord::Migration[5.2]
+def change
+create_table :posts do |t|
+t.string :title
+t.string :content
+t.integer :user_id
+t.integer :category_id
+t.timestamps
+end
+end
+end
+```