Can't reload ActiveRecord association from controller

Question

Spent a working day on this.

I have

class Box
  has_many :users, :through => :subscriptions
end

I also have custom insert_

Answer 1

You're seeing the effects of the ActiveRecord SQL query cache.

Either wrap the pre-INSERT references to the users association in a call to uncached

self.class.uncached do
  # ...
end

This will stop ActiveRecord from caching the results of any queries inside the block. If you have code in many places, this may be annoying.

You can also clear the cache after you are done with your inserts by calling connection.clear_query_cache.