function DatabaseStorage::has

Same name in other branches
  1. 8.9.x core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php \Drupal\Core\KeyValueStore\DatabaseStorage::has()
  2. 10 core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php \Drupal\Core\KeyValueStore\DatabaseStorage::has()
  3. 11.x core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php \Drupal\Core\KeyValueStore\DatabaseStorage::has()

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 64

Class

DatabaseStorage
Defines a default key/value store implementation.

Namespace

Drupal\Core\KeyValueStore

Code

public function has($key) {
    try {
        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();
    } catch (\Exception $e) {
        $this->catchException($e);
        return FALSE;
    }
}

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