public function getAvatar($size = 32)
{
if ($this->user_id) {
$cache = new YCache(ZOO_CACHE_PATH . DS . 'author_cache.txt', true, 604800);
$cache_check = $cache ? $cache->check() : false;
$url = '';
// try to get avatar url from cache
if ($cache_check) {
$url = $cache->get($this->user_id);
}
// if url is empty, try to get avatar url from twitter
if (empty($url)) {
$info = CommentHelper::getTwitterFields($this->user_id, array('profile_image_url'));
if (isset($info['profile_image_url'])) {
$url = $info['profile_image_url'];
}
if ($cache_check) {
$cache->set($this->user_id, $url);
$cache->save();
}
}
if (!empty($url)) {
return '<img alt="' . $this->name . '" title="' . $this->name . '" src="' . $url . '" height="' . $size . '" width="' . $size . '" />';
}
}
return parent::getAvatar($size);
}
