magirin / chat-space

DB 設計

user table

Column	Type	Options
id	integer	null: false
name	string	null: false, unique: true, index: true
mail	string	null: false
password	string	null: false

Association,

• has_many :posts
• has_many :room_users
• has_many :rooms,through: :room_users

room table

Column	Type	Options
id	integer	null: false
name	string	null: false

Association

• has_many :posts
• has_many :room_users
• has_many :users,through: :room_users

post table

Column	Type	Options
id	integer	null: false
content	string	null: false
image	string	null: false
cradted_at	string	null: false
user_id	integer	null: false, foreign_key: true
room_id	integer	null: false, foreign_key: true

Association

• belongs_to :user
• belongs_to :room

room_user table

Column	Type	Options
id	integer	null: false
user_id	integer	null: false, foreign_key: true
room_id	integer	null: false, foreign_key: true

Association

• belongs_to :user
• belongs_to :room