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pglatz avatar Drupal

hook_help() isn't recognized in my custom module

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pglatz

I created a custom module in Drupal 9.3.8 which implements hook_help() using code similar to what I have seen in other modules.

This is the relevant code in the node_usage.module file.

function node_usage_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.node_usage':
      $text = file_get_contents(__DIR__ . '/README.md');
      // …
      break;
  }
}

The help text doesn't show up on the Extend page or on /admin/help after I install it. If I call $this->moduleHandler->getImplementations('help') from within the help module, I don't see my module coming up in the list of modules that implements hook_help(). I've tried setting a breakpoint in token_help() in the token module, and it does break there when I clear caches.

Why isn't node_usage_help() invoked?

The module is otherwise working OK and other hooks are invoked.

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