/**
* Get the chart for displaying the previous version being upgrade from.
*
* @since 1.0
*
* @param Release $release
*
* @return Chart\Base
*/
private function get_version_chart(Release $release)
{
if ($release->get_status() == Release::STATUS_DRAFT) {
return null;
}
$results = $release->get_top_5_previous_versions();
$chart = new Chart\Pie(698, 200, array('ibdLoadOn' => 'loadVersionsChart', 'ibdShowLegend' => '#pie-chart-legend', 'tooltipTemplate' => '<%= value %> install<%if (value != 1){%>s<%}%>', 'responsive' => true));
$colors = array(array('color' => '#E94F37', 'highlight' => '#FF6951'), array('color' => '#393E41', 'highlight' => '#53585B'), array('color' => '#3F88C5', 'highlight' => '#59A2DF'), array('color' => '#44BBA4', 'highlight' => '#5ED5BE'), array('color' => '#EDDDD4', 'highlight' => '#D4C4BB'));
$i = 0;
foreach ($results as $version => $count) {
$label = empty($version) ? __("Unknown", Plugin::SLUG) : "v{$version}";
$chart->add_data_set($count, $label, $colors[$i]);
$i++;
}
return $chart;
}