Question

Probably a super easy solution, but trying to figure out how to find the sum of the ‘amount’ integer columns that belong to:

@milestones = Milestone.where(:buyer_id => current_user.id).where(:status => 'Paid')

I tried <%= @milestones.amount.inject(:+) %> in the view, didn’t work.

Answer 1

Of course, it didn’t work. There’s no amount on array of Milestones. Try this:

@milestones.map(&:amount).inject(:+)