public function DatabaseStorage::setIfNotExists in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php \Drupal\Core\KeyValueStore\DatabaseStorage::setIfNotExists()

Saves a value for a given key if it does not exist yet.

Parameters

string $key: The key of the data to store.

mixed $value: The data to store.

Return value

bool TRUE if the data was set, FALSE if it already existed.

Overrides KeyValueStoreInterface::setIfNotExists

File

core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php, line 127

Contains \Drupal\Core\KeyValueStore\DatabaseStorage.

Class

DatabaseStorage

Defines a default key/value store implementation.

Namespace

Drupal\Core\KeyValueStore

Code

public function setIfNotExists($key, $value) {
  $result = $this->connection
    ->merge($this->table)
    ->insertFields(array(
    'collection' => $this->collection,
    'name' => $key,
    'value' => $this->serializer
      ->encode($value),
  ))
    ->condition('collection', $this->collection)
    ->condition('name', $key)
    ->execute();
  return $result == Merge::STATUS_INSERT;
}