okdmm / chat-space

DB

users

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

Association

• has_many :messages
• has_many :group_users
• has_many :groups, through: :group_users

groups

Column	Type	Options
name	string	null: false

Association

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

groupe_users

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

Association

• belongs_to :group
• belongs_to :user

messages

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

Association

• belongs_to :group
• belongs_to :user