Determines if there is any book nodes or not.

Return value

bool TRUE if there are book nodes, FALSE otherwise.

1 call to BookUninstallValidator::hasBookNodes()

BookUninstallValidator::validate in core/modules/book/src/BookUninstallValidator.php

Determines the reasons a module can not be uninstalled.

File

core/modules/book/src/BookUninstallValidator.php, line 86

Class

BookUninstallValidator

Prevents book module from being uninstalled under certain conditions.

Namespace

Drupal\book

Code

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

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