/**
* Returns graph id in ObjectFS.
*
* @return int
**/
public function createBarPlot(RM_Total_Param $param)
{
$graph = M('Plot')->initGraph('graph', M('Total')->configWidth(), M('Total')->configHeight());
$plot1 = M('Plot')->initPlotByQuery('bar', $this->reportQuery(), $param->getVarname(), NULL, array('xLabelsFunction' => array($this, 'getDetailCaption')));
$graph->Add($plot1);
$graph->setTitle($tmp = $this->_object->_collectCaption($param));
$graph->yaxis->SetLabelFormatCallback(array($param, 'formatLabelCallback'));
return $this->_mapper->_createGraph($this->_object, $graph);
}