/**
* Show a specific widget
*
* @return Response
*/
public function show($widget_id, Filter $globalFilter)
{
if (Session::has("cockpit.from_date")) {
$globalFilter->setFromDate(new Carbon(Session::get("cockpit.from_date")));
}
if (Session::has("cockpit.until_date")) {
$globalFilter->setUntilDate(new Carbon(Session::get("cockpit.until_date")));
}
if (Session::has("cockpit.time_range")) {
$globalFilter->setTimeRange(Session::get("cockpit.time_range"));
}
$widget = Widget::findOrFail($widget_id);
$handler = new MetricHandler($globalFilter);
$widgetFilters = is_array($widget->filters) ? $widget->filters : [];
return $handler->renderChart($widget, $widgetFilters, $widget->timegroup);
}
/**
* @param $widget
* @param array $filters
* @param string $timeGroup
*
* @throws UnexpectedValueException
* @throws InvalidArgumentException
* @return mixed
*/
public function renderChart($widget, $filters = [], $timeGroup = "")
{
try {
$chartType = $widget->charttype;
/** @var \Mpociot\Cockpit\Metric $metric */
$metric = app(Config::get("cockpit.metrics_namespace", "App\\Cockpit\\Metrics\\") . $widget->metric);
$metric->setTimeGroup($timeGroup);
$metric->setChartType($chartType);
// Get metric results
$result = $metric->getValues($widget->submetric, array_merge($this->globalFilter->toArray(), $filters));
// Get metric title
$title = $metric->getTitle();
if (!$result instanceof DataTable) {
throw new UnexpectedValueException('Expected a datatable, but received ' . gettype($result));
}
// Create the Lavacharts Chart instance
$charts = new Lavacharts();
$charts->jsFactory->coreJsRendered(true);
$chartName = "chart_" . $widget->getKey();
$chart = $charts->{$chartType}($chartName);
$chart->title($title);
$chart->datatable($result);
// Render the Chart to HTML
return $charts->render($chartType, $chartName, $chartName, true);
} catch (ReflectionException $e) {
throw new InvalidArgumentException($e->getMessage());
}
}
