calculate shot groups in average cost

2022-02-15 21:56:01 -05:00
parent 7110a2db21
commit 69eebc82cc
2 changed files with 5 additions and 2 deletions
--- a/lib/cannery/ammo.ex
+++ b/lib/cannery/ammo.ex
@@ -60,9 +60,10 @@ defmodule Cannery.Ammo do
      ) do
    Repo.one!(
      from ag in AmmoGroup,
+        left_join: sg in assoc(ag, :shot_groups),
        where: ag.ammo_type_id == ^ammo_type_id,
        where: not (ag.price_paid |> is_nil()),
-        select: sum(ag.price_paid) / sum(ag.count)
+        select: sum(ag.price_paid) / (sum(ag.count) + sum(sg.count))
    )
  end