public function Connection::escapeAlias

Escapes an alias name string.

Force all alias names to be strictly alphanumeric-plus-underscore. In contrast to DatabaseConnection::escapeField() / DatabaseConnection::escapeTable(), this doesn't allow the period (".") because that is not allowed in aliases.

Return value

The sanitized field name string.

File

drupal/core/lib/Drupal/Core/Database/Connection.php, line 803
Definition of Drupal\Core\Database\Connection

Class

Connection
Base Database API class.

Namespace

Drupal\Core\Database

Code

public function escapeAlias($field) {
  return preg_replace('/[^A-Za-z0-9_]+/', '', $field);
}