public function getChart($id)
{
$chart = Chart::findOrFail($id);
$chart->values = $chart->getValues();
$chart->symbol = ChartUnit::findOrFail($chart->unit_id)->symbol;
$chart->type = ChartType::findOrFail($chart->type_id)->type;
// Don't expose the auth key
$chart = array_except($chart, 'auth');
return response()->json(['chart' => $chart]);
}
