defmodule PhoenixElastic.Semester do
  use PhoenixElastic.Web, :model
  @primary_key {:id, :binary_id, autogenerate: true}
  embedded_schema do
    field :semester_number, :integer
    field :semester_score, :integer
    embeds_many :subjects, PhoenixElastic.Subject, on_replace: :delete

    timestamps()
  end

  @doc """
  Builds a changeset based on the `struct` and `params`.
  """
  def changeset(struct, params \\ %{}) do
    struct
    |> cast(params, [:semester_number, :semester_score])
    |> cast_embed(:subjects)
    |> validate_required([:semester_number, :semester_score, :subjects])

  end
end