protected function deriveUnitsFromRequestedColumnNames($requestedColumnNames, $idSite)
{
$units = array();
foreach ($requestedColumnNames as $columnName) {
$derivedUnit = Piwik_API_API::getUnit($columnName, $idSite);
$units[$columnName] = empty($derivedUnit) ? false : $derivedUnit;
}
return $units;
}
/**
* Prepare metrics toggles with spark lines
* @param $controller
* @return array
*/
protected function getMetricsToggles($controller)
{
$chart = new Piwik_Visualization_Chart_Evolution();
$colors = $chart->getSeriesColors();
$i = 0;
$metrics = array();
foreach ($this->availableMetrics as $metric => $metricData) {
$max = isset($metricData['max']) ? $metricData['max'] : 0;
$min = isset($metricData['min']) ? $metricData['min'] : 0;
$change = isset($metricData['change']) ? $metricData['change'] : false;
$unit = Piwik_API_API::getUnit($metric, $this->idSite);
$min .= $unit;
$max .= $unit;
$details = Piwik_Translate('RowEvolution_MetricBetweenText', array($min, $max));
if ($change !== false) {
$lowerIsBetter = Piwik_API_API::isLowerValueBetter($metric);
if (substr($change, 0, 1) == '+') {
$changeClass = $lowerIsBetter ? 'bad' : 'good';
$changeImage = $lowerIsBetter ? 'arrow_up_red' : 'arrow_up';
} else {
if (substr($change, 0, 1) == '-') {
$changeClass = $lowerIsBetter ? 'good' : 'bad';
$changeImage = $lowerIsBetter ? 'arrow_down_green' : 'arrow_down';
} else {
$changeClass = 'neutral';
$changeImage = false;
}
}
$change = '<span class="' . $changeClass . '">' . ($changeImage ? '<img src="plugins/MultiSites/images/' . $changeImage . '.png" /> ' : '') . $change . '</span>';
$details .= ', ' . Piwik_Translate('RowEvolution_MetricChangeText', $change);
}
$color = $colors[$i % count($colors)];
$newMetric = array('label' => $metricData['name'], 'color' => $color, 'details' => $details, 'sparkline' => $this->getSparkline($metric, $controller));
// Multi Rows, each metric can be for a particular row and display an icon
if (!empty($metricData['logo'])) {
$newMetric['logo'] = $metricData['logo'];
}
$metrics[] = $newMetric;
$i++;
}
return $metrics;
}
