public function DatabaseStorage::has in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php \Drupal\Core\KeyValueStore\DatabaseStorage::has()

Returns whether a given key exists in the store.

Parameters

string $key: The key to check.

Return value

bool TRUE if the key exists, FALSE otherwise.

Overrides KeyValueStoreInterface::has

1 method overrides DatabaseStorage::has()

DatabaseStorageExpirable::has in core/lib/Drupal/Core/KeyValueStore/DatabaseStorageExpirable.php

Returns whether a given key exists in the store.

File

core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php, line 63

Class

DatabaseStorage

Defines a default key/value store implementation.

Namespace

Drupal\Core\KeyValueStore

Code

public function has($key) {
  return (bool) $this->connection
    ->query('SELECT 1 FROM {' . $this->connection
    ->escapeTable($this->table) . '} WHERE collection = :collection AND name = :key', [
    ':collection' => $this->collection,
    ':key' => $key,
  ])
    ->fetchField();
}