public function Schema::functionExists in Drupal driver for SQL Server and SQL Azure 4.1.x

Same name and namespace in other branches

1. 4.2.x src/Driver/Database/sqlsrv/Schema.php \Drupal\sqlsrv\Driver\Database\sqlsrv\Schema::functionExists()
2. 3.1.x src/Driver/Database/sqlsrv/Schema.php \Drupal\sqlsrv\Driver\Database\sqlsrv\Schema::functionExists()
3. 4.0.x src/Driver/Database/sqlsrv/Schema.php \Drupal\sqlsrv\Driver\Database\sqlsrv\Schema::functionExists()

Find if a table function exists.

Parameters

string $function: Name of the function.

Return value

bool True if the function exists, false otherwise.

File

src/Driver/Database/sqlsrv/Schema.php, line 1108

Class

Schema

Namespace

Drupal\sqlsrv\Driver\Database\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
    ->queryDirect("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;
}