Example showing the use of the bcrypt password api

gistfile1.rb

class User
  def self.authenticate(email, password)
    user = find_by_email(email)
    if user && BCrypt::Password.new(user.password_hash) == password
      user
    else
      nil
    end
  end
  
  def encrypt_password
    if password.present?
      self.password_hash = BCrypt::Password.create(password)
    end
  end
end