public function NodeSubject::notify in Changed Fields API 8.2

File

src/NodeSubject.php, line 67

Contains NodeSubject.php.

Class

NodeSubject

Class NodeSubject.

Namespace

Drupal\changed_fields

Code

public function notify() {
  foreach ($this->observers as $observer) {
    foreach ($observer
      ->getInfo() as $nodeType => $fields) {
      if (!$this->node
        ->isNew() && $this->node
        ->getType() == $nodeType) {
        $changedFields = [];
        foreach ($fields as $fieldName) {
          $oldValue = $this->node->original
            ->get($fieldName)
            ->getValue();
          $newValue = $this->node
            ->get($fieldName)
            ->getValue();
          $fieldDefinition = $this->node
            ->get($fieldName)
            ->getFieldDefinition();
          $result = $this->fieldComparatorPlugin
            ->compareFieldValues($fieldDefinition, $oldValue, $newValue);
          if (is_array($result)) {
            $changedFields[$fieldName] = $result;
          }
        }
        if (!empty($changedFields)) {
          $this->changedFields = $changedFields;
          $observer
            ->update($this);
        }
      }
    }
  }
}