Encore\Admin\Widgets\Chart\Pie::script PHP Method

    public function script()
    {
        $this->data = $this->fillColor($this->data);
        $data = json_encode($this->data);
        $options = json_encode($this->options);
        return <<<EOT
(function(){

    var canvas = \$("#{$this->elementId}").get(0).getContext("2d");
    var chart = new Chart(canvas).Pie({$data}, {$options});

})();
EOT;
    }