function assertHasId(model) {
  if (!model.$hasId()) {
    const modelClass = model.constructor;
    const ids = modelClass.getIdColumnArray().join(', ');

    throw new Error(
      `one of the identifier columns [${ids}] is null or undefined. Have you specified the correct identifier column for the model '${
        modelClass.name
      }' using the 'idColumn' property?`
    );
  }
}

module.exports = {
  assertHasId
};