data.rb

# Migration (This sits in db/migration folder) -------------------------
Sequel.migration do
  up do
    # Create Users table
    create_table(:logins) do
      primary_key :id
      String :user_name, unique: true, null: false
      String :password_hash, null: false
    end
  end
  down do
    drop_table(:logins)
  end
end

# ORM (This sits in models folder) ---------------------------------
class Login < Sequel::Model
  plugin :secure_password, cost: 12, digest_column: :password_hash
end

# Seed (This sits in db/seed.rb) -------------------------------------
require_relative '../app/app'

login = Login.new
login.user_name = 'admin'
login.password = 'password'
login.password_confirmation = 'password'
puts 'Created Login' if login.save