All nodes of one content type in my project need to get automatically flagged (by the Flags module) when created. I'm aware that there is probably a way to accomplish this using Rules module, but I'm attempting to build my first-ever custom module to do it, because a) I don't think I'm going to need Rules for anything else in this project and b) want to get my feet wet on making custom modules. (I've got a basic 'hello world' module working.)

A support request in the Flag module seems to provide a simple way to automatically flag nodes, but it looks to me like it would do this to nodes of all content types. https://www.drupal.org/project/flag/issues/3030288

For convenience here's the code there, for a flag called bookmark...

function your_module_node_insert(Drupal\Core\Entity\EntityInterface $entity){
 $flag = \Drupal::entityTypeManager()->getStorage('flag')->load('bookmark');
 \Drupal::service('flag')->flag($flag, $entity);

The api page for this hook doesn't seem to tell me what I need to know. (https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Entity%21entity.api.php/function/hook_ENTITY_TYPE_insert/9.0.x)

Questions: Is this even the right hook for this need? If so, how might I restrict it to a specific content type?

  • See the Node docs. You can get the the content type (aka bundle) of the node with $entity->bundle() which is generic and will work for all content entities.
    – sonfd
    Dec 6, 2021 at 0:06
  • Will this link help? drupal.stackexchange.com/questions/185442/…
    – sea26.2
    Dec 6, 2021 at 0:37
  • These are both helpful for filling in gaps. With my close-to-zero background on working with objects, classes, methods etc., I mainly need to understand the syntax. The right way to do that is work through a course from foundation concepts up, but, yes, looking for shortcuts. Any additional code examples would be great. Some will be closer to what I'm trying to do. I can look for patterns then trial-and-error it the rest of the way. Probably.
    – aharown07
    Dec 6, 2021 at 15:27
  • I have updated the question in light of my latest tests.
    – aharown07
    Dec 7, 2021 at 18:49
  • Have you configured the entity? git.drupalcode.org/project/flag/-/tree/8.x-4.x#configuration. If not, then you may be misdiagnosing the issue, try running update.php.
    – Jaypan
    Dec 7, 2021 at 18:57

1 Answer 1


This is working for me...

'rf_tweaks' is the module machine name, 'research_note' is the node content type, and 'research_item' is the name of the flag.

use Drupal\node\Entity\Node;

function rf_tweaks_node_insert(Node $node) {
  if ($node->bundle() == 'research_note'){
 $flag = \Drupal::entityTypeManager()->getStorage('flag')->load('research_item');
 \Drupal::service('flag')->flag($flag, $node);

For the benefit of other first time module builders, this is in the rf_tweaks.module file and the file begins with the <?php required in those.

  • Well, it was working but now it's not. Errors... "The flag does not apply to the bundle of the entity. in Drupal\flag\FlagService->flag() (line 294 of ...modules/contrib/flag/src/FlagService.php)" followed by "Drupal\Core\Entity\EntityStorageException: The flag does not apply to the bundle of the entity. in Drupal\Core\Entity\Sql\SqlContentEntityStorage->save() (line 810 of ...core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php)."
    – aharown07
    Dec 7, 2021 at 23:04
  • Actually still works but must be sure the content type stays enabled in the config for that flag. This is because the module calls the flag api. (Or so I am led to understand.)
    – aharown07
    Dec 7, 2021 at 23:09

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