Getting old node field value in update hook

user108721

5/3/24, 8:13 AM

Hi I'm using the node update hook in my custom .module file in my Drupal 9 site. I have a field called field_amount. And I was wondering if I can access the old value of that field within my update hook and the new value too?

function custom_module_node_update(\Drupal\node\NodeInterface $node) {
  //access the old value of field_amount and the new value
}

1 + 0

nodes

Score:1

Drupal

Clive

5/3/24, 9:00 AM

As the docs say:

Get the original entity object from $entity->original.

In your case that would be, for example:

function custom_module_node_update(\Drupal\node\NodeInterface $node) {
  $old_field_value = $node->original->field_foo->value;
}

+ 1

user108721

5/3/24, 9:07 AM

Thanks it works!

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