Using Ecto Fragments, how can i perform subtraction on two Database fields

ViperCoderJay · February 13, 2021, 1:37pm

How can I perform the follow function using ecto fragments

Transaction
|> Enum.map(& &1.amount - &1.amountPaid)

joey_the_snake · February 13, 2021, 5:57pm

You shouldn’t need fragments. You could do this:

from r in Row, select: %{amount_unpaid: r.amount - r.amount_paid}