Programmatically update node via array

Question

I'm trying to import some nodes into a new D8 installation. Therefore I wrote a module. Importing nodes is already working perfectly. As you can see in my code snippet, I'm using the $field_array variable to create the nodes. Now my questione: is it possible to use this variable also for the node update functionality?

Regards

M.

 public function ausgabe($import_node,$action,$new_old_uid,$new_old_nid) {
    global $content_type;


    $lang = $this->get_current_language();

    $field_array = [
        'uid' => $new_old_uid["new_uid"],
        'type' => $content_type,
        'langcode' => $lang,
        'status' => $import_node->status,
        'created' => $import_node->created ,
        'changed' => $import_node->changed ,
        'title' => $import_node->title,
        'body' => [
            'summary' => "",
            'value' => (isset($import_node->body) && !empty($import_node->body)) ? $import_node->body : "",
            'format' => 'full_html',
        ],
        'field_teaser' => [
            'value' => (isset($import_node->teaser) && !empty($import_node->teaser)) ? $import_node->teaser : "",
            'format' => 'full_html',
        ],
        'field_onid' => array('value'=>$import_node->nid),
        'field_image' =>  $this->get_set_images($import_node->field_ausgabe_bild),
        'field_files' => $this->get_set_files($import_node->files),
    ];

    if($action == "create") {
        $node = Node::create($field_array);
    } else {
        $node = Node::load($new_old_nid["new_nid"]);

    }
    $node->save();

    \Drupal::service('path.alias_storage')->save("/node/" . $node->id(), '/'.$import_node->path, $lang);
    echo $action.": Node " . $import_node->title . ' ('.$node->id().') <br>';

    $this->pre("",true);

}

Answer 1

There seems to be no method to update a complete node.

But you can do this on a field basis:

foreach ($field_array as $field => $values) {
  $node->set($field, $values);
}