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	integer	null: false, foreign_key: true
gruop_id	integer	null: false, foreign_key: true

Association

• belongs_to :group
• belongs_to :user

usersテーブル

Column	Type	Options
name	string
email	string	null: false
encrypted_password	string	null: false
created_at	datetime	null: false
updated_at	datetime	null: false
group_id	integer	null: false, foreign_key: true

Index

• add_index :users, :email, unique: true
• add_index :users, :name, unique: true

Association

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

messagesテーブル

Column	Type	Options
body	text
image	string
created_at	datetime	null: false
updated_at	datetime	null: false
gruop_id	integer	null: false, foreign_key: true
user_id	integer	null: false, foreign_key: true

Association

• belongs_to :group
• belongs_to :user

groupsテーブル

Column	Type	Options
group_name	string
created_at	datetime	null: false
updated_at	datetime	null: false
user_id	integer	null: false, foreign_key: true
message_id	integer	null: false, foreign_key: true

Association

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