Backend\Modules\Pages\Actions\Add::getImage PHP Method

    private function getImage($allowImage)
    {
        if (!$allowImage || !$this->frm->getField('image')->isFilled()) {
            return null;
        }
        $imagePath = FRONTEND_FILES_PATH . '/pages/images';
        $imageFilename = $this->meta->getURL() . '_' . time() . '.' . $this->frm->getField('image')->getExtension();
        $this->frm->getField('image')->generateThumbnails($imagePath, $imageFilename);
        return $imageFilename;
    }