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I placed the following function in my custom module.

function MYMODULE_node_update($node) {
  if ($node->type === 'page') {
    $node->title = 'test';
  }
}

When editing and saving a node of content type page nothing happens. What can be the issue?

Problem solved. It seemed to be caused by the following:

my custom module wasn't ending with ?> and above all my module name was custom_site.module and my hooks started with custom. This didn't give problems before with my other hooks so I never noticed. (This helped: https://drupal.stackexchange.com/a/111272/85560)

My module name now is custom.module and now custom_node_presave() works.

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  • node_save($node); right after $node->title = 'test';. And flush cache. But maybe better rely on hook_node_insert. Not sure.
    – leymannx
    Commented Jan 14, 2020 at 16:05
  • 1
    No need to call node_save() in a hook_node_update() as the hook is invoked from the node_save function itself. api.drupal.org/api/drupal/modules%21node%21node.api.php/…
    – XenoVkl
    Commented Jan 14, 2020 at 16:21
  • The hook name would be custom_site_ and not custom_. I would advise devising a better naming strategy.
    – Kevin
    Commented Jan 15, 2020 at 19:47
  • Add your question update as answer so other can benefict from your findings. Thanks!
    – d70rr3s
    Commented Jan 16, 2020 at 8:52
  • I am actually already using another more identic name for custom. I just used it as an example. My module name is MYMODULE.module and the hook name is MYMODULE_node_presave().
    – sndr
    Commented Jan 16, 2020 at 9:06

1 Answer 1

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You should use hook_node_presave if you want to change a field's value as the hook is invoked from node_save() before the node is saved to the database. And as leymannx stated, make sure you clear the cache before implementing a new hook.

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