After "mix phx.gen.live Biddings Bidding biddings bidding_round:integer amount:integer depot_wish_one:string depot_wish_two:string".

lib/beet_round_server/biddings/bidding.ex

@@ -0,0 +1,24 @@
+defmodule BeetRoundServer.Biddings.Bidding do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :binary_id, autogenerate: true}
+  @foreign_key_type :binary_id
+  schema "biddings" do
+    field :bidding_round, :integer
+    field :amount, :integer
+    field :depot_wish_one, :string
+    field :depot_wish_two, :string
+    field :user_id, :binary_id
+
+    timestamps(type: :utc_datetime)
+  end
+
+  @doc false
+  def changeset(bidding, attrs, user_scope) do
+    bidding
+    |> cast(attrs, [:bidding_round, :amount, :depot_wish_one, :depot_wish_two])
+    |> validate_required([:bidding_round, :amount, :depot_wish_one, :depot_wish_two])
+    |> put_change(:user_id, user_scope.user.id)
+  end
+end