Saved custom model doesn't returns it's id

Question

I have a table with only 2 fields: id (primary key) and name. I've created a model for it, repository model.

In my repository model, there is a method save. I'm trying to create a new record in my table, executing:

$model = `$this->modelFactory->create();
$model->setName('some name');
$this->modelRepository->save($model);

Model saves succefully, but, when i try to get an id of created model, it returns null, so i have only name inside of model ($model->getName() => 'some name', $model->getId() => null)

So, how do I get new record id?

P.S. New record appears in DB with correct id.

There is a constructor of resource model:

/**
 * Initialize resource model and define main table
 *
 * @return void
 */
protected function _construct()
{
    $this->_init('catalog_motorbike_vendors', 'id');
}

Answer 1

Found a mistake in my own code. There was not implemented method setId() in my Model class.