Database Schema

Database Schema

Users

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

Posts

column name	data type	details
id	integer	not null, primary key
body	text	not null
author_id	integer	not null, indexed, foreign key
recipient_id	integer	not null, indexed, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• author_id references users who created the post
• recipient_id references users who wall the post was written on

Comments

column name	data type	details
id	integer	not null, primary key
body	text	not null
author_id	integer	not null, indexed, foreign key
post_id	integer	not null, indexed, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• author_id references users who created the comment
• post_id references posts which received the comment

Friends

column name	data type	details
id	integer	not null, primary key
requestor_id	integer	not null, indexed, foreign key
receiver_id	integer	not null, indexed, foreign key

• requestor_id references users who sent a friend request
• receiver_id references users who received a friend request