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

• ...

usersテーブル

Column	Type	Options
name	string	null: false,index: true
image	text

Association

• has_many :group_users
• has_many :groups,through: :group-users
• has_many :messages

groupsテーブル

Column	Type	Options
name	string	null: false

Association

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

messagesテーブル

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

Association

• belongs_to :group
• belongs_to :user

group_usersテーブル

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

Association

• belongs_to :group
• belongs_to :user