forked from shibao/cannery
calculate shot groups in average cost
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parent
7110a2db21
commit
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@ -60,9 +60,10 @@ defmodule Cannery.Ammo do
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) do
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Repo.one!(
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from ag in AmmoGroup,
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left_join: sg in assoc(ag, :shot_groups),
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where: ag.ammo_type_id == ^ammo_type_id,
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where: not (ag.price_paid |> is_nil()),
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select: sum(ag.price_paid) / sum(ag.count)
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select: sum(ag.price_paid) / (sum(ag.count) + sum(sg.count))
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)
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end
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@ -9,7 +9,7 @@ defmodule Cannery.Ammo.AmmoGroup do
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use Ecto.Schema
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import Ecto.Changeset
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alias Cannery.Ammo.{AmmoGroup, AmmoType}
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alias Cannery.{Accounts.User, Containers.Container}
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alias Cannery.{Accounts.User, ActivityLog.ShotGroup, Containers.Container}
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alias Ecto.{Changeset, UUID}
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@primary_key {:id, :binary_id, autogenerate: true}
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@ -24,6 +24,8 @@ defmodule Cannery.Ammo.AmmoGroup do
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belongs_to :container, Container
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belongs_to :user, User
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has_many :shot_groups, ShotGroup
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timestamps()
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end
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