Subscribe Example

Simple

An example of sending messages to subscribers.

/**
 * Implements hook_node_update().
 */
function message_subscribe_example_node_update(NodeInterface $node) {
  $message = Message::create([
    'template' => 'node_update',
    'uid' => $node->getOwnerId(),
  ]);
  $message->set('field_node_reference', $node);
  $message->set('field_published', $node->isPublished());
  $message->save();

  // Send message to subscribers about changes to the node.
  $subscribers = \Drupal::service('message_subscribe.subscribers');
  $subscribers->sendMessage($node, $message);
}