README

groupsテーブル

Column	Type	Options
name	string	null: false,unique:true

Association

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

usersテーブル

Column	Type	Options
name	string	null: false, unique:true
email	string	null: false, unique: true
password	string	null: false , unique: true

Association

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

messagesテーブル

Column	Type	Options
body	text
image	string
group_id	integer	foreign_key: true,index:true
user_id	integer	foreign_key: true,index:true

Association

• belongs_to :user
• belongs_to :group

memberテーブル

Column	Type	Options
group_id	integer	foreign_key: true,index:true
user_id	integer	foreign_key: true,index:true

Association

• belongs_to :user
• belongs_to :group