function BookUninstallValidator::hasBookNodes

Determines if there is any book nodes or not.

Return value

bool TRUE if there are book nodes, FALSE otherwise.

File

core/modules/book/src/BookUninstallValidator.php, line 84

Class

BookUninstallValidator

Prevents book module from being uninstalled whilst any book nodes exist or there are any book outline stored.

Namespace

Code

protected function hasBookNodes() {
    $nodes = $this->entityTypeManager
        ->getStorage('node')
        ->getQuery()
        ->condition('type', 'book')
        ->accessCheck(FALSE)
        ->range(0, 1)
        ->execute();
    return !empty($nodes);
}