README

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

• ...

ChatSpace DB設計

userテーブル

Column	Type	Options
name	string	null: false, unique: true
email	string	null: false, unique: true
password	string	null: false

Association

• has_many :users_groups
• has_many :groups, through: :users_groups
• has_many :messages

groupテーブル

Column	Type	Options
name	string	null: false, unique: true

Association

• has_many :group_users
• has_many :users, through: :group_users
• has_many :messages

group_userテーブル

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

Association

• belongs_to :user
• belongs_to :group

messageテーブル

Column	Type	Options
user	references	null: false, foreign_key: true
group	references	null: false, foreign_key: true
message	string
image	string

Association

• belongs_to :user
• belongs_to :group