function getPieChart($sid, $tableName, $columnName)
{
$datasetDAO = new DatasetDAO();
$cid = $datasetDAO->getCidBySidTableNameColumName($sid, $tableName, $columnName);
$pieChartInput = new stdClass();
$inputObj = new stdClass();
$inputObj->sid = $sid;
$inputObj->oneSid = true;
$inputObj->tableName = $tableName;
$inputObj->title = 'pieChart';
$pieChartInput->inputObj = $inputObj;
$pieChartInput->table = $tableName;
$columnObj = new stdClass();
$columnObj->cid = $cid;
$pieChartInput->pieColumnCat = $columnObj;
$pieChartInput->pieColumnAgg = $columnObj;
$pieChartInput->pieAggType = "Count";
$pieChartInput->where = "";
$pieChart = new PieChart(null, null, null, null, null, null, null, null, null, null, null);
$pieData = $pieChart->query($pieChartInput);
$chartId = str_replace(".", "dot", "{$sid}{$tableName}{$columnName}");
$pieData["chartId"] = $chartId;
$pieData["columnName"] = $columnName;
// foreach ($pieData["content"] as $key => $value) {
// SAVETODB($cid, $value->Category, $value->AggValue);
// //$value["Category"], $value["AggValue"]
// }
return $pieData;
}
