asciinema.org/app/models/user.rb

class User < ActiveRecord::Base

  has_many :user_tokens, :dependent => :destroy
  has_many :asciicasts, :dependent => :destroy
  has_many :comments, :dependent => :destroy
  has_many :likes, :dependent => :destroy
  has_many :user_tokens, :dependent => :destroy
  has_many :asciicasts, :dependent => :destroy
  has_many :comments, :dependent => :destroy

  attr_accessible :nickname, :email, :name

  validates :nickname, :email, presence: true, uniqueness: true

  def self.for_credentials(credentials)
    where(provider: credentials.provider, uid: credentials.uid).first
  end

  def self.for_email(email)
    where(email: email).first
  end

  def to_param
    nickname
  end

  def add_user_token(token)
    user_tokens.where(:token => token).first_or_create
  end

end