QCharts/CoreBundle/Entity/ChartConfig.php
public function setFetchedOn($fetchedOn = null)
    {
        if (!is_null($fetchedOn))
        {
            $this->fetchedOn = $fetchedOn;
            return $this;
        }
        $this->fetchedOn = new \DateTime('now');
        return $this;
    }
public function setFetchedOn($fetchedOn = null)
    {
        if (!is_null($fetchedOn))
        {
            $this->fetchedOn = $fetchedOn;
            return $this;
        }
        $this->fetchedOn = new \DateTime('now');
        return $this;
    }
Set fetchedOn

@param \DateTime $fetchedOn

@return ChartConfig