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public function BookOutlineStorage::hasBooks in Zircon Profile 8

Same name and namespace in other branches
  1. 8.0 core/modules/book/src/BookOutlineStorage.php \Drupal\book\BookOutlineStorage::hasBooks()

Checks if there are any books.

Return value

bool TRUE if there are books, FALSE if not.

Overrides BookOutlineStorageInterface::hasBooks

File

core/modules/book/src/BookOutlineStorage.php, line 41
Contains \Drupal\book\BookOutlineStorage.

Class

BookOutlineStorage
Defines a storage class for books outline.

Namespace

Drupal\book

Code

public function hasBooks() {
  return (bool) $this->connection
    ->query('SELECT count(bid) FROM {book}')
    ->fetchField();
}