Sum and Group by in Rails

Question

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

Answer 1

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.