Schema

Postgres Database Schema

users

column name	data type	details
id	bigint	not null, primary key
username	string	not null, indexed, unique
password_digest	string	not null
email	string	not null, indexed, unique
name	string	not null
birth_date	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
• has_many songs
• has_many likes
• has_many playlists

songs

column name	data type	details
id	bigint	not null, primary key
album_id	integer	foreign key
artist_id	integer	not null, foreign key
title	string	not null, indexed
created_at	datetime	not null
updated_at	datetime	not null

• index on title
• artist_id references artists
• album_id references albums
• belongs_to users
• belongs_to playlists
• belongs_to artists
• belongs_to albums

playlists

column name	data type	details
id	bigint	not null, primary key
author_id	integer	not null, indexed, foreign key
title	string	not null, indexed
public	boolean	not null
created_at	datetime	not null
updated_at	datetime	not null

likes

column name	data type	details
id	bigint	not null, primary key
liker_id	integer	not null, foreign key, indexed
media_id	integer	not null, foreign key, indexed
media_type	string	not null
created_at	datetime	not null
updated_at	datetime	not null

artists

column name	data type	details
id	bigint	not null, primary key
name	string	not null, indexed
description	text	not null
created_at	datetime	not null
updated_at	datetime	not null

albums

column name	data type	details
id	bigint	not null, primary key
title	string	not null, indexed
artist_id	integer	not null, foreign key, indexed
published_date	string	not null
created_at	datetime	not null
updated_at	datetime	not null