public function print_advertisement($ad_type, $position = null, $center = false)
{
$ad = Advertisement::random($ad_type, substr($position, 0, 1));
if ($ad) {
if ($ad->html) {
$contents = $ad->html;
} else {
$contents = $this->linkTo($this->imageTag($ad->image_url, ['alt' => "Advertisement", 'width' => $ad->width, 'height' => $ad->height]), $this->redirectAdvertisementPath($ad), ['target' => '_blank']);
}
if ($center) {
return $this->contentTag('div', $contents, ['style' => 'margin:0 auto;width:' . $ad->width . 'px;height:' . $ad->height . 'px;']);
} else {
return $contents;
}
}
}