#　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
first_name	string	null: false
last_name	string	null: false
read_first	string	null: false
read_last	string	null: false
birthday	date	null: false

Association

• has_many :items
• has_many :orders

items テーブル

Column	Type	Options
name	string	null: false
explanation	text	null: false
category_id	integer	null: false
condition_id	integer	null: false
delivery_charge_id	integer	null: false
prefecture_id	integer	null: false
arrival_day_id	integer	null: false
price	integer	null: false
user	references	null: false, foreign_key: true

Association

• belongs_to :user
• has_one :order
• belongs_to_active_hash :category
• belongs_to_active_hash :condition
• belongs_to_active_hash :delivery_charge
• belongs_to_active_hash :prefecture
• belongs_to_active_hash :arrival_day

orders テーブル

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

Association

• has_one :payment
• belongs_to :user
• belongs_to :item

payments テーブル

Column	Type	Options
zip_code	string	null: false
prefecture_id	integer	null: false
city	string	null: false
street_number	string	null: false
building_name	string
phone_number	string	null: false
order	references	null: false, foreign_key: true

Association

• belongs_to :order