81 lines
2.6 KiB
Elixir
81 lines
2.6 KiB
Elixir
defmodule Cannery.Ammo.AmmoGroup do
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@moduledoc """
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A group of a certain ammunition type.
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Can be placed in a container, and contains auxiliary information such as the
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amount paid for that ammunition, or what condition it is in
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"""
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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, 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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@foreign_key_type :binary_id
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schema "ammo_groups" do
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field :count, :integer
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field :notes, :string
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field :price_paid, :float
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field :staged, :boolean, default: false
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belongs_to :ammo_type, AmmoType
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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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@type t :: %AmmoGroup{
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id: id(),
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count: integer,
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notes: String.t() | nil,
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price_paid: float() | nil,
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staged: boolean(),
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ammo_type: AmmoType.t() | nil,
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ammo_type_id: AmmoType.id(),
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container: Container.t() | nil,
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container_id: Container.id(),
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user: User.t() | nil,
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user_id: User.id(),
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inserted_at: NaiveDateTime.t(),
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updated_at: NaiveDateTime.t()
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}
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@type new_ammo_group :: %AmmoGroup{}
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@type id :: UUID.t()
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@doc false
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@spec create_changeset(new_ammo_group(), attrs :: map()) :: Changeset.t(new_ammo_group())
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def create_changeset(ammo_group, attrs) do
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ammo_group
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|> cast(attrs, [:count, :price_paid, :notes, :staged, :ammo_type_id, :container_id, :user_id])
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|> validate_number(:count, greater_than: 0)
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|> validate_required([:count, :staged, :ammo_type_id, :container_id, :user_id])
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end
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@doc false
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@spec update_changeset(t() | new_ammo_group(), attrs :: map()) ::
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Changeset.t(t() | new_ammo_group())
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def update_changeset(ammo_group, attrs) do
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ammo_group
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|> cast(attrs, [:count, :price_paid, :notes, :staged, :ammo_type_id, :container_id])
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|> validate_number(:count, greater_than_or_equal_to: 0)
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|> validate_required([:count, :staged, :ammo_type_id, :container_id, :user_id])
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end
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@doc """
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This range changeset is used when "using up" ammo groups, and allows for
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updating the count to 0
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"""
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@spec range_changeset(t() | new_ammo_group(), attrs :: map()) ::
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Changeset.t(t() | new_ammo_group())
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def range_changeset(ammo_group, attrs) do
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ammo_group
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|> cast(attrs, [:count, :staged])
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|> validate_required([:count, :staged, :ammo_type_id, :container_id, :user_id])
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end
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end
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