Database Schema

users

column name	data type	details
id	integer	not null, primary key
username	string	not null, indexed, unique
email	string	not null, indexed, unique
password_digest	string	not null
session_token	string	not null, indexed, unique
created_at	datetime	not null
updated_at	datetime	not null

• index on username, unique: true
• index on email, unique: true
• index on session_token, unique: true

servers

column name	data type	details
id	integer	not null, primary key
name	string	not null, indexed, unique
admin_id	integer	not null, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• admin_id references users
• index on name, unique: true

channels

column name	data type	details
id	integer	not null, primary key
name	string	not null, indexed, unique
server_id	integer	not null, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• server_id references servers
• index on name, unique: true

messages

column name	data type	details
id	integer	not null, primary key
body	string	not null
author_id	integer	not null, foreign key
channel_id	integer	not null, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• author_id references users
• channel_id references channels