README

テーブル設計

users テーブル

Column	Type	Options
name	string	null: false
email	string	null: false
encrypted_password	string	null: false

• has_many :room_users
• has_many :rooms, through: :room_users
• has_many :messages

rooms テーブル

Column	Type	Options
name	string	null: false

• has_many :room_users
• has_many :users, through: :room_users
• has_many :messages

room_users テーブル

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

• belongs_to :room
• belongs_to :user

messages テーブル

Column	Type	Options
content	string
user	references	null: false, foreign_key: true
room	references	null: false, foreign_key: true

• belongs_to :room
• belongs_to :user

This README would normally document whatever steps are necessary to get the application up and running.

Things you may want to cover:

• Ruby version

• System dependencies

• Configuration

• Database creation

• Database initialization

• How to run the test suite

• Services (job queues, cache servers, search engines, etc.)

• Deployment instructions

• ...