public function DatabaseSchema_sqlsrv::functionExists in Drupal driver for SQL Server and SQL Azure 7.3

Same name and namespace in other branches

1. 7 sqlsrv/schema.inc \DatabaseSchema_sqlsrv::functionExists()
2. 7.2 sqlsrv/schema.inc \DatabaseSchema_sqlsrv::functionExists()

Find if a table function exists.

Parameters

$function: Name of the function.

Return value

True if the function exists, false otherwise.

File

sqlsrv/schema.inc, line 471

Database schema code for Microsoft SQL Server database servers.

Class

DatabaseSchema_sqlsrv

Code

public function functionExists($function) {

  // FN = Scalar Function
  // IF = Inline Table Function
  // TF = Table Function
  // FS | AF = Assembly (CLR) Scalar Function
  // FT | AT = Assembly (CLR) Table Valued Function
  return $this->connection
    ->query_direct("SELECT 1 FROM sys.objects WHERE object_id = OBJECT_ID('" . $function . "') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT', N'AF')")
    ->fetchField() !== FALSE;
}