Database Schema

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

messages

column name	data type	details
id	integer	not null, primary key
content	string	not null
channel_id	integer	not null, indexed
sender_id	integer	not null, indexed
created_at	datetime	not null
updated_at	datetime	not null

• sender_id references users
• channel_id references channels

users_channels

column name	data type	details
id	integer	not null, primary key
user_id	integer	not null, indexed, foreign key
channel_id	integer	not null, indexed, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• user_id references users
• channel_id references channels
• index on [:channel_id, :user_id], unique: true

channels

column_name	data_type	details
id	integer	not null, primary key
name	text	not null
owner_id	integer	not null, indexed, foreign key
private	boolean	[true, false]: default: false
created_at	datetime	not null
updated_at	datetime	not null

• owner_id references users

workspaces

column_name	data_type	details
id	integer	not null, primary key
name	text	not null
url	text	not null
owner_id	integer	not null, indexed, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• owner_id references users

workspaces_channels

column_name	data_type	details
id	integer	not null, primary key
workspace_id	integer	not null, indexed, foreign key
channel_id	integer	not null, indexed, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• workspace_id references workspaces
• channel_id references channels
• index on [:workspace_id, :user_id], unique: true