wish911wish / mercari_40

DB設計

users table

Column	Type	Options
nickname	string	index: true, null: false
family_name	string	null: false
first_name	string	null: false
family_name_kana	string	null: false
first_name_kana	string	null: false
birthday	date	null: false
postal_code	string
prefectures	string
city	string
street_address	string
building	string
phone_number	string	null: false
introduction	text
image	string
email	string	null: false, unique: true

Association

• has_many :user_evaluations
• has_many :item_evaluations
• has_many :items
• has_many :favorites

user_evaluations table

Column	Type	Options
evaluator_id	references	null: false, foreign_key: { to_table: :users }
evaluatee_id	references	null: false, foreign_key: { to_table: :users }
evaluation	integer	null: false

Association

• belongs_to :user

items table

Column	Type	Options
seller_id	references	null: false, foreign_key: { to_table: :users }
buyer_id	references	null: false, foreign_key: { to_table: :users }
name	string	index: true, null: false
description	text
big_category_id	references	foreign_key: { to_table: :users }
middle_category_id	references	foreign_key: { to_table: :users }
small_category_id	references	foreign_key: { to_table: :users }
brand_id	references	foreign_key: true
size_id	references	foreign_key: true
condition_id	references	null: false, foreign_key: true
shipping_cost_id	references	null: false, foreign_key: true
shipping_method_id	references	null: false, foreign_key: true
sender_prefecture	string	null: false
days_for_shipment_id	references	null: false, foreign_key: true
status_id	references	null: false, foreign_key: true
price	integer	null: false

Association

• belongs_to :user
• has_many :item_images
• has_one :condition
• has_one :shipping_cost
• has_one :shipping_method
• has_one :days_for_shipment
• has_one :status

categories table

Column	Type	Options
name	string	null: false, index: true
parent	integer

Association

• has_many :items
• has_many :sizes

category_sizes table

Column	Type	Options
category_id	references	null: false, foreign_key: true
size_id	references	null: false, foreign_key: true

Association

• belongs_to :category

brands table

Column	Type	Options
name	string	null: false, index: true
category_id	references	null: false, foreign_key: true

Association

• has_many :items

item_images table

Column	Type	Options
item_id	references	null: false, foreign_key: true
image	string	null: false

Association

• belongs_to :item

sizes table

Column	Type	Options
name	string	null: false
category_id	references	null: false, foreign_key: true
size_group	integer	null: false

Association

• belongs_to :category
• has_many :items

conditions table

Column	Type	Options
name	string	null: false

Association

• belongs_to :item

shipping_costs table

Column	Type	Options
name	string	null: false

Association

• belongs_to :item

shipping_methods table

Column	Type	Options
name	string	null: false

Association

• belongs_to :item

days_for_shipments table

Column	Type	Options
name	string	null: false

Association

• belongs_to :item

statuses table

Column	Type	Options
name	string	null: false

Association

• belongs_to :item

favorites table

Column	Type	Options
item_id	references	null: false, foreign_key: { to_table: :items }
user_id	references	null: false, foreign_key: { to_table: :users }

Association

• belongs_to :item
• belongs_to :user