/**
* find the sum from a set of data
* @param object list model
* @return string sum result
*/
protected function getSumQuery(&$tableModel, $label = "'calc'")
{
$fields = $tableModel->getDBFields($this->getTableName(), 'Field');
if ($fields[$this->getElement()->name]->Type == 'time') {
$name = $this->getFullName(false, false, false);
$table =& $tableModel->getTable();
$joinSQL = $tableModel->_buildQueryJoin();
$whereSQL = $tableModel->_buildQueryWhere();
return "SELECT SEC_TO_TIME(SUM(TIME_TO_SEC({$name}))) AS value, {$label} AS label FROM `{$table->db_table_name}` {$joinSQL} {$whereSQL}";
} else {
return parent::getSumQuery($tableModel, $label);
}
}
