/**
* Escape a value into SQL format
* @param string|int $str
* @return string
*/
function escape($str)
{
if ($str === null) {
return 'NULL';
}
if (is_numeric($str) && (int) $str == $str) {
return $str;
}
if (is_array($str)) {
throw new \BadMethodCallException('cant escape an array');
}
if (is_object($str)) {
if (method_exists($str, 'toEscaped')) {
//depreciated
return $str->toEscaped();
} elseif ($str instanceof IToSQL) {
return $str->toSQL();
} elseif (method_exists($str, '__toString')) {
$str = (string) $str;
} else {
throw new \BadMethodCallException('cant escape this object, non escapable');
}
}
return '\'' . $this->adapter->Escape($str) . '\'';
}
