gistfile1.txt

def make_friends(user, target)
  transaction do
    begin
      Friend.find(:first, :conditions => {:inviter_id => user.id, :invited_id => target.id, :status => PENDING}).update_attribute(:status, ACCEPTED)
      Friend.create!(:inviter_id => target.id, :invited_id => user.id, :status => ACCEPTED)
    rescue Exception
      return make_friends( target, user) if user.followed_by? target
      return add_follower(user, target)
    end
  end
  true
end