Gets the list of node access grants and writes them to the database.
This function is called when a node is saved, and can also be called by modules if something other than a node save causes node access permissions to change. It collects all node access grants for the node from hook_node_access_records() implementations, allows these grants to be altered via hook_node_access_records_alter() implementations, and saves the collected and altered grants to the database.
\Drupal\Core\Entity\EntityInterface $node: The $node to acquire grants for.
$delete: (optional) Whether to delete existing node access records before inserting new ones. Defaults to TRUE.
function node_access_acquire_grants(EntityInterface $node, $delete = TRUE) {
$grants = module_invoke_all('node_access_records', $node);
// Let modules alter the grants.
drupal_alter('node_access_records', $grants, $node);
// If no grants are set and the node is published, then use the default grant.
if (empty($grants) && !empty($node->status)) {
$grants[] = array(
'realm' => 'all',
'gid' => 0,
'grant_view' => 1,
'grant_update' => 0,
'grant_delete' => 0,
);
}
_node_access_write_grants($node, $grants, NULL, $delete);
}