Programmatically updating a node

Question

I can create a node using the following code:

$node = \Drupal::entityTypeManager()->getStorage('node')->create($array);

But if I have the node ID, how can I edit a node?

Answer 1

You can try this code

<?php
use Drupal\node\Entity\Node;

$node = Node::load($nid);
//set value for field
$node->body->value = 'body';
$node->body->format = 'full_html';
//field tag
$node->field_tags = [1];
//field image
$field_image = array(
    'target_id' => $fileID,
    'alt' => "My 'alt'",
    'title' => "My 'title'",
);
$node->field_image = $field_image;

//save to update node
$node->save();

Answer 2

$node = \Drupal::entityTypeManager()->getStorage('node')->load($nid);

Answer 3

You can use the Entity's API to perform the updates.

$node = Node::load($id);

if ($node instanceof NodeInterface) {
  try {
    $node->set('title', 'My Title');
    $node->set('field_textfield', 'My textfield value');
    $node->save();
  }
  catch (\Exception $e) {
    watchdog_exception('myerrorid', $e);
  }
}

Answer 4

Old method works too for me:

$node=node_load($nid);
print_r($node->body->format);
$node->body->format='full_html';
print_r($node->body->format);
$node->save();