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Editorial Team
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Asked: 2026-06-05T11:41:21+00:00

I have a Rails 3.2 application that tracks mailings for subscription orders. The basic

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I have a Rails 3.2 application that tracks mailings for subscription orders.

The basic model structure is:

Order has_many Subscriptions has_many SubscriptionMailings

Each month a record for each subscription mailing is generated and a csv file is exported from these records.

The mailing address is stored at the order level.

Basically I select all of the subscriptions that are valid to mail that month and loop through them getting the mailing address from the order object. Then I create a new subscription mailing record for each one.

Right now this works ok because there aren’t a lot of subscriptions, but it is pretty slow.

How can I speed up this process?

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1 Answer

  1. Editorial Team

    After some research I ended up wrapping my code in a transaction without making any other changes.

    It sped up things quite a bit.

    Before I added the transaction the code was taking over 1 minute to run, now it is down to roughly 10 seconds. This is plenty fast enough for my needs, so I didn’t try and optimize any further.

    ActiveRecord::Base.transaction do
   # my db stuff here
end
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