<?php
//--Class Prerequisite--------------------------

include_once "clsbase_Prerequisite.php";

class Prerequisite extends base_Prerequisite{

function RSPrerequisiteByCoId($xKey){
	$this->SetQuery("select * from Prerequisite where courseId='$xKey' order by sequence");
}

function RSPrerequisiteByCoIdLimit($xKey, $start, $pageSize){
	$this->SetQuery("select * from Prerequisite where courseId='$xKey' order by sequence limit $start, $pageSize");
}

function GetNextSeqByCoId($xKey){
	$this->SetQuery("select max(sequence) as num from Prerequisite where courseId='$xKey'");
	if ($result=$this->GetResult()) {
		return $result['num']+1;
	}
}

} //--End class Prerequisite--
?>