/**
* Internal function to return a Referral object from a row.
* @param $row array
* @return Referral
*/
function &_returnReferralFromRow(&$row)
{
$referral = new Referral();
$referral->setId($row['referral_id']);
$referral->setArticleId($row['article_id']);
$referral->setStatus($row['status']);
$referral->setUrl($row['url']);
$referral->setDateAdded($this->datetimeFromDB($row['date_added']));
$referral->setLinkCount($row['link_count']);
$this->getDataObjectSettings('referral_settings', 'referral_id', $row['referral_id'], $referral);
return $referral;
}
function logArticleRequest(&$templateMgr)
{
$article = $templateMgr->get_template_vars('article');
if (!$article) {
return false;
}
$articleId = $article->getId();
$referrer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : null;
// Check if referrer is empty or is the local journal
if (empty($referrer) || strpos($referrer, Request::getIndexUrl()) !== false) {
return false;
}
$referralDao =& DAORegistry::getDAO('ReferralDAO');
if ($referralDao->referralExistsByUrl($articleId, $referrer)) {
// It exists -- increment the count
$referralDao->incrementReferralCount($article->getId(), $referrer);
} else {
// It's a new referral -- log it.
$referral = new Referral();
$referral->setArticleId($article->getId());
$referral->setLinkCount(1);
$referral->setUrl($referrer);
$referral->setStatus(REFERRAL_STATUS_NEW);
$referral->setDateAdded(Core::getCurrentDate());
$referralDao->insertReferral($referral);
}
}
/**
* Intercept requests for article display to collect and record
* incoming referrals.
*/
function logArticleRequest(&$templateMgr)
{
$article = $templateMgr->get_template_vars('article');
if (!$article) {
return false;
}
$articleId = $article->getId();
$referrer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : null;
// Check if referrer is empty or is the local journal
if (empty($referrer) || strpos($referrer, Request::getIndexUrl()) !== false) {
return false;
}
$referralDao =& DAORegistry::getDAO('ReferralDAO');
if ($referralDao->referralExistsByUrl($articleId, $referrer)) {
// It exists -- increment the count
$referralDao->incrementReferralCount($article->getId(), $referrer);
} else {
// It's a new referral. Log it unless it's excluded.
$journal = $templateMgr->get_template_vars('currentJournal');
$exclusions = $this->getSetting($journal->getId(), 'exclusions');
foreach (array_map('trim', explode("\n", "{$exclusions}")) as $exclusion) {
if (empty($exclusion)) {
continue;
}
if (preg_match($exclusion, $referrer)) {
return false;
}
}
$referral = new Referral();
$referral->setArticleId($article->getId());
$referral->setLinkCount(1);
$referral->setUrl($referrer);
$referral->setStatus(REFERRAL_STATUS_NEW);
$referral->setDateAdded(Core::getCurrentDate());
$referralDao->insertReferral($referral);
}
return false;
}
/**
* Save referral.
*/
function execute()
{
$referralDao =& DAORegistry::getDAO('ReferralDAO');
if (isset($this->referralId)) {
$referral =& $referralDao->getReferral($this->referralId);
}
if (!isset($referral)) {
$referral = new Referral();
$referral->setDateAdded(Core::getCurrentDate());
$referral->setLinkCount(0);
}
$referral->setArticleId($this->article->getId());
$referral->setName($this->getData('name'), null);
// Localized
$referral->setUrl($this->getData('url'));
$referral->setStatus($this->getData('status'));
// Update or insert referral
if ($referral->getId() != null) {
$referralDao->updateReferral($referral);
} else {
$referralDao->insertReferral($referral);
}
}
