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<?php |
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use Jaybizzle\CrawlerDetect\CrawlerDetect; |
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class ShortListController extends Page_Controller |
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{ |
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private static $allowed_actions = array( |
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'renderList', |
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'performAction' |
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); |
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private static $url_handlers = array( |
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'add' => 'performAction', |
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'remove' => 'performAction', |
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'$URL!' => 'renderList', |
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); |
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private static $extensions = array( |
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'ShortListPaginationExtension' |
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); |
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public function init() |
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{ |
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parent::init(); |
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Session::start(); |
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if ($this->request->getVar('page')) { |
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$this->currentPage = $this->request->getVar('page'); |
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} |
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} |
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/** |
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* When landing on the homepage, if there is a shortlist for the current |
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* user, redirect to the correct URL. Otherwise, 404. |
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* */ |
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public function index($request) |
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{ |
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if (($shortlist = $this->getSessionShortList())) { |
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return $this->redirect(Config::inst()->get('ShortList', 'URLSegment').$shortlist->URL); |
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} else { |
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$CrawlerDetect = new CrawlerDetect; |
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// Check the user agent of the current 'visitor' |
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if ($CrawlerDetect->isCrawler()) { |
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return $this->httpError(403); |
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} |
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$shortlist = $this->getSessionShortList(); |
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if (!$shortlist || !$shortlist->exists()) { |
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$shortlist = new ShortList(); |
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$shortlist->write(); |
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} |
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} |
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// render with empty template. |
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return $this->renderWith(array('Page', 'ShortList_empty')); |
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} |
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/** |
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* Get the absolute URL of this controller. |
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* */ |
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public function Link($action = null) |
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{ |
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$shortlist = $this->getSessionShortList(); |
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$url = Config::inst()->get('ShortList', 'URLSegment'); |
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if ($shortlist) { |
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$url .= $shortlist->URL; |
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} |
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return $url; |
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} |
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public function renderList($request) |
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{ |
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$shortlist = DataObject::get_one('ShortList', $filter = array('URL' => $request->param('URL'))); |
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$link = false; |
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$count = 0; |
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if ($this->dontRender($shortlist, $request)) { |
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return $this->httpError(404); |
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} |
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if ($shortlist && $shortlist->exists()) { |
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$link = $shortlist->Link(); |
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$count = $shortlist->ShortListItems()->Count(); |
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} |
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return $this->customise(array( |
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'ShortlistURL' => $link, |
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'ShortlistCount' => $count |
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))->renderWith( |
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array('ShortList', 'Page') |
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); |
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} |
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public function performAction($request) |
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{ |
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if ($this->dontPerformAction($request)) { |
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return $this->httpError(404); |
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} |
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$action = new AddToshortlistAction(); |
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$matches = array(); |
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preg_match('/remove|add/', $request->getURL(), $matches); |
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if ($matches[0] == 'remove') { |
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$action = new RemoveFromshortlistAction(); |
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} |
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$status = $action->performAction( |
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$shortlist = $this->getSessionShortList(), |
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$ID = $request->getVar('id'), |
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$type = $request->getVar('type'), |
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$session = $request->getVar('s') |
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); |
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if ($request->isAjax()) { |
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return $this->renderAjax($session); |
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} |
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if (array_key_exists('output', $request->getVars())) { |
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return $status; |
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} |
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return $this->redirectBack(); |
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} |
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/** |
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* Get the number of items in the current short list. |
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* |
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* @param session The session to check & find a shortlist for. |
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* @return mixed false if no session exists - else the number of items in the shortlist. |
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* */ |
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public function shortListCount($session = false) |
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{ |
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if ($this->isSessionValid($session)) { |
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return false; |
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} |
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$shortlist = $this->getSessionShortList(); |
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if (!$shortlist || !$shortlist->exists()) { |
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return 0; |
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} |
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return $shortlist->Items()->count(); |
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} |
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public static function getShortListSession() |
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{ |
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return DataObject::get_one('ShortList', $filter = array('SessionID' => self::getSecurityToken())); |
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} |
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/** |
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* Get the token to use to add/remove from shortlist. |
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* */ |
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public static function getSecurityToken() |
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{ |
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return Utilities::getSecurityToken(); |
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} |
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/** |
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* Return a valid shortlist - or null. |
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* */ |
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private function getSessionShortList() |
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{ |
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return DataObject::get_one('ShortList', |
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$filter = array('SessionID' => self::getSecurityToken()), |
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$cache = false |
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); |
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} |
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/** |
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* Return the json encoded count & url for the current session |
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* */ |
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private function renderAjax($session) { |
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$shortlist = $this->getSessionShortList(); |
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$url = false; |
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if ($shortlist && $shortlist->exists()) { |
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$url = $shortlist->Link(); |
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} |
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return json_encode(array( |
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'count' => $this->shortListCount($session), |
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'url' => $url |
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)); |
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} |
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/** |
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* Don't render the template! |
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* */ |
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private function dontRender($shortlist, $request) |
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{ |
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return is_null(self::getSecurityToken()) || !$request->param('URL') || !$shortlist || !$shortlist->exists(); |
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} |
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/** |
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* Is this session valid? |
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* */ |
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private function isSessionValid($session) { |
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return is_null(self::getSecurityToken()) || !$session || $session != self::getSecurityToken(); |
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} |
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/** |
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* Don't perform an action. |
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* */ |
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private function dontPerformAction($request) |
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{ |
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return is_null(self::getSecurityToken()) || !$request->getVar('id') || !$request->getVar('type') || |
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!$request->getVar('s') || $request->getVar('s') != self::getSecurityToken(); |
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} |
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} |
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It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: