defmodule Localiser.Repo.Migrations.CreateSensorCalibrations do
  use Ecto.Migration

  def change do
    create table(:sensor_calibrations) do
      add :sensor_id, references(:sensors, on_delete: :delete_all), null: false
      add :rssi_ref, :integer, null: false
      add :path_loss_exp, :float, null: false
      add :calibrated_at, :utc_datetime, null: false
      add :inserted_at, :utc_datetime, null: false
    end

    create index(:sensor_calibrations, [:sensor_id])
  end
end