class BasicUsageObserver in Changed Fields API 8.2

Class BasicUsageObserver.

Hierarchy

• class \Drupal\changed_fields_basic_usage\BasicUsageObserver implements ObserverInterface

1 file declares its use of BasicUsageObserver

changed_fields_basic_usage.module in examples/changed_fields_basic_usage/changed_fields_basic_usage.module

Contains changed_fields_basic_usage.module.

File

examples/changed_fields_basic_usage/src/BasicUsageObserver.php, line 16

Contains BasicUsageObserver.php.

Namespace

Drupal\changed_fields_basic_usage

class BasicUsageObserver implements ObserverInterface {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    return [
      'article' => [
        'title',
        'body',
      ],
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function update(SplSubject $nodeSubject) {
    $node = $nodeSubject
      ->getNode();
    $changedFields = $nodeSubject
      ->getChangedFields();

    // Do something with $node depends on $changedFields.
  }

}

Members

Name	Modifiers	Type	Description	Overrides
BasicUsageObserver::getInfo	public	function	Returns associative array of node types with their fields for watching. Overrides ObserverInterface::getInfo
BasicUsageObserver::update	public	function