On Feb 23, 8:28 pm, Kevin Scaldeferri <[email protected]>
wrote:
> I'm trying to figure out it there's some alternative to find(:all)
> that can avoid instantiating every object at once, when I know that
> I'm just going to iterate over the collection and throw it away. E.g.
>
http://github.com/rails/rails/commit/d13623ca46c82120c398f4634e206422fc3ad7ea
?
Fred
> def batch_process
> User.find(:all).each do |user|
> batch_process_one_user(user)
> end
> end
>
> Unfortunately, this may instantiate millions of User objects and use
> up GB of memory, which is not acceptable. I've been digging through
> docs and code trying to figure out how I can do this within Rails,
> rather than having to go down to the raw DB connection and build from
> there, or pushing everything into a stored procedure.
>
> Thanks,
>
> -kevin
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