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

Users_テーブル

column	type	options
user_id	integer	null: false
user-name	string	null: false, unique: true
mail	string	null: false, unique: true
pass	string	null: false,

Associationm

-has_many: groups -has_many: chats

Group_テーブル

column	type	options
group_id	integer	null: false
group_name	string	null: false
user_id	integer	null: false, foreign_key: true
user_name	string	null: false, foreign_key: true, index

Associationm

• belongs_to: user
• has_many: chats

Chat_テーブル

column	type	options
group_ID	integer	null: false, foreign_key: true
user_ID	integer	null: false, foreign_key: true
user_name	string	null: false, foreign_key: true
text	text	t.text
image	stri	string

Associationm

• belongs_to: user
• belongs_to :group

• Database initialization

• How to run the test suite

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

• Deployment instructions

• ...