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

• ...

membersテーブル

Column	Type	Options
user_id	reference	null: false, foreign_key: true
group_id	reference	null: false, foreign_key: true

Association

• belongs_to :group
• belongs_to :user

usersテーブル

Column	Type	Options
id	integer
name	string	null: false, index
email	string	null: false,unique:true

Association

• has_many :messages
• has_many :members
• has_many :groups,through::members

groupsテーブル

Column	Type	Options
id	integer
name	string	null: false

Association

• has_many :messages
• has_many :members
• has_many :users,through::members

messagesテーブル

Column	Type	Options
id	integer
boby	text
image	string
user_id	reference	null: false, foreign_key: true
group_id	reference	null: false, foreign_key: true

Association

• belongs_to :user
• belongs_to :group