/**
* get a function format string
*
* @param SQLFunction func
* @return string
* @throws lang.IllegalArgumentException
*/
public function formatFunction(SQLFunction $func)
{
if ('concat' == $func->func) {
return '(' . implode(' + ', array_fill(0, sizeof($func->args), '%s')) . ')';
}
return parent::formatFunction($func);
}
/**
* Get a dialect specific datepart
*
* @param string datepart
* @return string
* @throws lang.IllegalArgumentException
*/
public function datepart($datepart)
{
$datepart = strtolower($datepart);
if (!array_key_exists($datepart, self::$dateparts)) {
return parent::datepart($datepart);
}
if (FALSE === self::$dateparts[$datepart]) {
throw new IllegalArgumentException('SqlSrv does not support datepart ' . $datepart);
}
return self::$dateparts[$datepart];
}