class Friendship

  include Mongoid::Document
  include Mongoid::Timestamps

  field :user_id
  field :friend_id
  field :created_at, :type => DateTime

  belongs_to :user
  belongs_to :friend, :class_name => 'User'


end

###

class Post
	belongs_to :user
end

###

class User
  has_many :posts
  has_many :friendships
  has_many :friends, :through => :friendships
end