title: Update an another field along with the increment_counter method in rails
body: <p>I have a cache_counter field on my Customer model which is <em>orders_count</em>. This field can be only update using the increment_counter method.
  <code>Customer.increment_counter(:orders_count, customer_id)</code> this will increment the orders count of the customer. There is an another field which is already in my Customer model that is <em>last_updated_at</em> , i want to update this field along the increment_counter method.
  How this could be possible?</p>