protected function initializeChart(PeriodInterface $period, $intStart, $intStop)
{
$arrSession = \Session::getInstance()->get('iso_reports');
$intConfig = (int) $arrSession[$this->name]['iso_config'];
$intStart = strtotime('first day of this month', $intStart);
$arrData = array();
$arrCurrencies = \Database::getInstance()->execute("\n SELECT DISTINCT currency FROM tl_iso_config WHERE currency!=''\n " . $this->getConfigProcedure() . "\n " . ($intConfig > 0 ? ' AND id=' . $intConfig : '') . "\n ")->fetchEach('currency');
foreach ($arrCurrencies as $currency) {
$arrData[$currency . '_Members']['label'] = $currency . $GLOBALS['TL_LANG']['ISO_REPORT']['members_chart_toggle_suffix'];
$arrData[$currency . '_Members']['className'] = '.' . strtolower($currency) . '_M';
$arrData[$currency . '_Guests']['label'] = $currency . $GLOBALS['TL_LANG']['ISO_REPORT']['guests_chart_toggle_suffix'];
$arrData[$currency . '_Guests']['className'] = '.' . strtolower($currency) . '_G';
}
while ($intStart <= $intStop) {
foreach ($arrCurrencies as $currency) {
$arrData[$currency . '_Members']['data'][$period->getKey($intStart)]['x'] = $intStart;
$arrData[$currency . '_Members']['data'][$period->getKey($intStart)]['y'] = 0;
$arrData[$currency . '_Guests']['data'][$period->getKey($intStart)]['x'] = $intStart;
$arrData[$currency . '_Guests']['data'][$period->getKey($intStart)]['y'] = 0;
}
$intStart = $period->getNext($intStart);
}
return $arrData;
}
