defmodule Ami.Assignment do
  use Ecto.Schema
  use Arc.Ecto.Schema

  import Ecto.{
    Changeset
  }

  alias Ami.{
    # Repo,
    Enrollment
  }

  alias Ami.AssignmentUploader.Type

  schema "assignments" do
    field(:file_name, :string)
    field(:file, Type)

    belongs_to(:enrollment, Enrollment)
  end

  def changeset(struct, params \\ %{}) do
    struct
    |> cast(params, [:file_name, :enrollment_id])
    |> cast_attachments(params, [:file])
    |> case do
      %{valid?: false, changes: changes} = changeset when changes == %{} ->
        %{changeset | action: :ignore}

      changeset ->
        changeset
    end
  end
end