Database Schema

users

Column Name	Data Type	Details
id	integer	serial, not null, primary key
username	string(50)	not null, unique
hashedPassword	string.binary	not null
profilePic	string(255)	not null
created_at	datetime	not null
updated_at	datetime	not null

• a user .hasMany albums
• a user .hasMany likes
• a user .hasMany comments
• a user .hasMany follows

songs

Column Name	Data Type	Details
id	integer	serial, not null, primary key
album_id	integer	not null, foreignKey
song_title	string(150)	not null
image_url	varchar	not null, foreignKey
audio_url	varchar	not null,
created_at	datetime	not null
updated_at	datetime	not null

• a song .belongsTo an album
• a song .hasMany likes
• a song .hasMany comments
• FOREIGN KEY album_id REFERENCES Album(id)
• FOREIGN KEY image_url REFERENCES Album(image_url)

albums

Column Name	Data Type	Details
id	integer	serial, not null, primary key
user_id	integer	not null, foreignKey
album_title	string(150)	not null
image_url	string(250)	not null,
created_at	datetime	not null
updated_at	datetime	not null

• an album .hasMany songs
• an album .belongsTo a user
• FOREIGN KEY user_id REFERENCES Users(id)

likes

Column Name	Data Type	Details
id	integer	serial, not null, primary key
user_id	integer	not null
song_id	integer	not null
created_at	datetime	not null
updated_at	datetime	not null

• a like .belongsTo a user
• a like .belongsTo a song
• FOREIGN KEY user_id REFERENCES Users(id)
• FOREIGN KEY song_id REFERENCES Songs(id)

comments

Column Name	Data Type	Details
id	integer	serial, not null, primary key
user_id	integer	not null, foreignKey
song_id	integer	not null, foreignKey
content	string(250)	not null
created_at	datetime	not null
updated_at	datetime	not null

• a comment .belongsTo a user
• a comment .belongsTo a song
• FOREIGN KEY user_id REFERENCES Users(id)
• FOREIGN KEY song REFERENCES Songs(id)

follows

Column Name	Data Type	Details
id	integer	serial, not null, primary key
user_id	integer	not null, foreignKey
followed_user_id	integer	not null, foreignKey
created_at	datetime	not null
updated_at	datetime	not null

• a user .hasMany followed_user_id
• a followed_user_id .belongsTo a user
• FOREIGN KEY user_id REFERENCES Users(id)
• FOREIGN KEY followed_user_id REFERENCES Users(id)