/** Preview an advertisement.
*/
public function preview(SS_HTTPRequest $request)
{
$request->shift();
$adID = (int) $request->param('ID');
$ad = UniadsObject::get()->byID($adID);
if (!$ad) {
Controller::curr()->httpError(404);
return;
}
// No impression and click tracking for previews
$conf = UniadsObject::config();
$conf->use_js_tracking = false;
$conf->record_impressions = false;
$conf->record_impressions_stats = false;
// Block stylesheets and JS that are not required (using our own template)
Requirements::clear();
$template = new SSViewer('UniadsPreview');
return $template->Process($ad);
}
private function GetAdAndLogClick($id)
{
$id = (int) $id;
if ($id) {
$ad = UniadsObject::get()->byID($id);
if ($ad && $ad->exists()) {
$conf = UniadsObject::config();
if ($conf->record_clicks) {
$ad->Clicks++;
$ad->write();
}
if ($conf->record_clicks_stats) {
$clk = new UniadsClick();
$clk->AdID = $ad->ID;
$clk->write();
}
return $ad;
}
}
return null;
}
/** Displays a randomly chosen advertisement of the specified dimensions.
*
* @param zone of the advertisement
*/
public function DisplayAd($zone)
{
$ad = null;
if ($zone) {
if (!is_object($zone)) {
$zone = UniadsZone::get()->filter(array('Title' => $zone, 'Active' => 1))->first();
}
if ($zone) {
$toUse = $this->owner;
if ($toUse->InheritSettings) {
while ($toUse->ParentID) {
if (!$toUse->InheritSettings) {
break;
}
$toUse = $toUse->Parent();
}
if (!$toUse->ParentID && $toUse->InheritSettings) {
$toUse = null;
}
}
$page_related = "and not exists (select * from Page_Ads pa where pa.UniadsObjectID = UniadsObject.ID)";
$campaign = '';
if ($toUse) {
$page_related = "and (\n\t\t\t\t\t\texists (select * from Page_Ads pa where pa.UniadsObjectID = UniadsObject.ID and pa.PageID = " . $toUse->ID . ")\n\t\t\t\t\t\tor not exists (select * from Page_Ads pa where pa.UniadsObjectID = UniadsObject.ID)\n\t\t\t\t\t)";
if ($toUse->UseCampaignID) {
$campaign = "and c.ID = '" . $toUse->UseCampaignID . "'";
}
}
$base_from = "\n\t\t\t\t\tUniadsObject\n\t\t\t\t\t\tleft join UniadsCampaign c on c.ID = UniadsObject.CampaignID\n\t\t\t\t";
$base_where = "\n\t\t\t\t\tUniadsObject.ZoneID = '" . $zone->ID . "'\n\t\t\t\t\t" . $page_related . "\n\t\t\t\t\tand (c.ID is null or (\n\t\t\t\t\t\tc.Active = '1'\n\t\t\t\t\t\tand (c.Starts <= '" . date('Y-m-d') . "' or c.Starts = '' or c.Starts is null)\n\t\t\t\t\t\tand (c.Expires >= '" . date('Y-m-d') . "' or c.Expires = '' or c.Expires is null)\n\t\t\t\t\t\t" . $campaign . "\n\t\t\t\t\t))\n\t\t\t\t\tand (UniadsObject.Starts <= '" . date('Y-m-d') . "' or UniadsObject.Starts = '' or UniadsObject.Starts is null)\n\t\t\t\t\tand (UniadsObject.Expires >= '" . date('Y-m-d') . "' or UniadsObject.Expires = '' or UniadsObject.Expires is null)\n\t\t\t\t\tand UniadsObject.Active = '1'\n\t\t\t\t";
$subbase_where = preg_replace_callback('/(?<!\\w)(UniadsObject|c)\\./', function ($m) {
return str_repeat($m[1], 2) . '.';
}, $base_where);
$sqlQuery = new SQLQuery($select = 'UniadsObject.ID', $from = array($base_from), $where = $base_where . "\n\t\t\t\t\t\tand (UniadsObject.ImpressionLimit = 0 or UniadsObject.ImpressionLimit > UniadsObject.Impressions)\n\t\t\t\t\t\tand UniadsObject.Weight >= (rand() * (\n\t\t\t\t\t\t\tselect max(UniadsObjectUniadsObject.Weight)\n\t\t\t\t\t\t\tfrom UniadsObject as UniadsObjectUniadsObject\n\t\t\t\t\t\t\t\tleft join UniadsCampaign cc on cc.ID = UniadsObjectUniadsObject.CampaignID\n\t\t\t\t\t\t\twhere " . $subbase_where . "\n\t\t\t\t\t\t))", $order = "rand()", $limit = 1);
singleton('UniadsObject')->extend('augmentSQL', $sqlQuery);
//echo $sqlQuery->sql();
$result = $sqlQuery->execute();
if ($result && count($result) > 0) {
$row = $result->First();
if (isset($row['ID']) && $row['ID'] !== '') {
$ad = UniadsObject::get()->byID($row['ID']);
// now we can log impression
$conf = UniadsObject::config();
if ($conf->record_impressions) {
$ad->Impressions++;
$ad->write();
}
if ($conf->record_impressions_stats) {
$imp = new UniadsImpression();
$imp->AdID = $ad->ID;
$imp->write();
}
}
}
}
}
if (!$ad) {
// Show an empty advert
$ad = new UniadsObject();
}
$output = $ad->forTemplate();
if ($zone) {
foreach ($zone->ChildZones()->sort('Order') as $child) {
if ($child->Active) {
$output .= $this->DisplayAd($child);
}
}
}
return $output;
}