I can't find a way to do an access check inside a template. For example, embedding addition admin information in a node template. The problem is that the access method is not allowed by the twig sandbox.
in a node template use
node.access('edit')
Maybe something like this?
/**
* {@inheritdoc}
*/
public function getFunctions() {
return [
new TwigFunction('has_access', [$this, 'hasAccess']),
];
}
/**
* Check if current user has access to a specific operation.
*
* @param \Drupal\Core\Access\AccessibleInterface $accessible
* Object implementing the accessible interface.
* @param $operation
* The operation being checked.
*
* @return bool
*/
public function hasAccess(AccessibleInterface $accessible, $operation): bool {
return $accessible->access($operation);
}
Closed: won't fix
3.2
Code
Any access check should provide cache metadata. Simple checking for boolean result will cause all kind of caching issues and can potentially lead to security problems.