public function DatabaseConnection_sqlsrv::escapeField in Drupal driver for SQL Server and SQL Azure 7

Same name and namespace in other branches

1. 7.3 sqlsrv/database.inc \DatabaseConnection_sqlsrv::escapeField()
2. 7.2 sqlsrv/database.inc \DatabaseConnection_sqlsrv::escapeField()

Escapes a field name string.

Force all field names to be strictly alphanumeric-plus-underscore. For some database drivers, it may also wrap the field name in database-specific escape characters.

Return value

string The sanitized field name string.

Overrides DatabaseConnection::escapeField

File

sqlsrv/database.inc, line 191

Database interface code for Microsoft SQL Server.

Class

DatabaseConnection_sqlsrv

Code

public function escapeField($field) {
  if (strlen($field) > 0) {
    return implode('.', array_map(array(
      $this,
      'quoteIdentifier',
    ), explode('.', preg_replace('/[^A-Za-z0-9_.]+/', '', $field))));
  }
  else {
    return '';
  }
}