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Editorial Team
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Asked: 2026-05-28T08:30:27+00:00

I have a table defined as such: Name – Order# – Widget Count Bob

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I have a table defined as such:

Name - Order# - Widget Count
Bob  - 12311  - 6
Nancy- 12555  - 8
BoB  - 87573  - 12
Nancy- 12929  - 4

I’d like to retrieve them as such:

Bob - 18
Nancy - 12

Ie: A sum of their widget counts, ordered by name. I know how to go about this in SQL server/etc, but I’m not sure what the best practice is in Rails. Any help would be much appreciated!

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1 Answer

  1. Editorial Team

    This should work, assuming your model is called Person:

    Person.group(:name).count(:widget_count)

    You can find more info about it on RailsGuides for ActiveRecord.

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