Code snippet that can be used to programmatically generate a title for node in Drupal 8.
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Entity\EntityInterface;
/**
* Implements hook_form_FORM_ID_alter().
*/
function MODULE_form_node_CONTENT_TYPE_form_alter(array &$form, FormStateInterface $form_state, $form_id) {
//Hide the title
$form['title']['#access'] = FALSE;
}
function MODULE_entity_presave(EntityInterface $entity)
{
if ($entity->getEntityTypeId() == 'node') {
if ($entity->getType() == 'article') {
$name = $entity->get('field_name')->value;
$lastname = $entity->get('field_lastname')->value;
$entity->set('title', $name . ' - ' . $lastname);
}
}
}
