port over some more

lib/odinsea/database/schema/mts_cart.ex

@@ -0,0 +1,30 @@
+defmodule Odinsea.Database.Schema.MtsCart do
+  @moduledoc """
+  Ecto schema for the mts_cart table.
+  Represents MTS cart items for characters.
+  """
+
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :id, autogenerate: true}
+
+  schema "mts_cart" do
+    field :characterid, :integer, default: 0
+    field :itemid, :integer, default: 0
+
+    belongs_to :character, Odinsea.Database.Schema.Character,
+      foreign_key: :characterid,
+      references: :id,
+      define_field: false
+  end
+
+  @doc """
+  Changeset for creating an MTS cart entry.
+  """
+  def changeset(mts_cart, attrs) do
+    mts_cart
+    |> cast(attrs, [:characterid, :itemid])
+    |> validate_required([:characterid, :itemid])
+  end
+end