/**
* Get pie chart json for category-pie chart
*
* @return string
*/
protected function getCategoryPieJson()
{
$stats = $this->getModel()->getCategoryPieStats();
$series = array();
$trTable = Category_DBTable::DB_TABLE_NAME;
foreach ($stats as $key => $value) {
$series[] = array($this->translationMap[$trTable][$value['category']], (int) $value['count']);
}
$config = array('main_title' => self::CATEGORY_PIE_PLOT, 'series_name' => 'Contribution');
return $this->chartHelper->getPieChartJson($config, $series);
}
