テーブル設計

usersテーブル

Column	Type	Options
email	string	null: false, unique: true
encrypted_password	string	null: false
nickname	string	null: false
last_name	string	null: false
first_name	string	null: false
last_name_kana	string	null: false
first_name_kana	string	null: false
birth_date	date	null: false

Association

• has_many :items
• has_many :orders

itemsテーブル

Column	Type	Options
name	string	null: false
info	text	null: false
category_id	integer	null: false
sales_status_id	integer	null: false
shipping_fee_status_id	integer	null: false
prefecture_id	integer	null: false
scheduled_delivery_id	integer	null: false
price	integer	null: false
user	references	null: false, foreign_key: true

Association

• belongs_to :user
• has_one :order

ordersテーブル

Column	Type	Options
user	references	null: false, foreign_key: true
item	references	null: false, foreign_key: true

Association

• belongs_to :user
• belongs_to :item
• has_one :address

addressesテーブル

Column	Type	Options
postal_code	string	null: false
prefecture_id	integer	null: false
city	string	null: false
address	string	null: false
building	string
phone_number	string	null: false
order	references	null: false, foreign_key: true

Association

• belongs_to :order