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	references	null: false, foreign_key: true
group	references	null: false, foreign_key: true

Association

belongs_to :group
belongs_to :user

usersテーブル

Column	Type	Options
name	string	null: false
e-mail	varchar	null: false
password	varchar	null: false

Association

_ has_many :members _ has_many :groups, through: :members _ has_many :messages

groupテーブル

Column	Type	Options
name	string	null:false

Association

_ has_many :members _ has_many :users, through: :members _ has_many :messages

messageテーブル

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

Association

_ belongs_to :user _ belongs_to :group