public function Connection::escapeAlias in Drupal 8

Same name in this branch

1. 8 core/lib/Drupal/Core/Database/Connection.php \Drupal\Core\Database\Connection::escapeAlias()
2. 8 core/lib/Drupal/Core/Database/Driver/pgsql/Connection.php \Drupal\Core\Database\Driver\pgsql\Connection::escapeAlias()
3. 8 core/lib/Drupal/Core/Database/Driver/mysql/Connection.php \Drupal\Core\Database\Driver\mysql\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.

Parameters

string $field: An unsanitized alias name.

Return value

string The sanitized alias name.

Overrides Connection::escapeAlias

File

core/lib/Drupal/Core/Database/Driver/mysql/Connection.php, line 481

Class

Connection

MySQL implementation of \Drupal\Core\Database\Connection.

Namespace

Drupal\Core\Database\Driver\mysql

Code

public function escapeAlias($field) {

  // Quote fields so that MySQL reserved words like 'function' can be used
  // as aliases.
  $field = parent::escapeAlias($field);
  return $this
    ->quoteIdentifier($field);
}