/**
* Add Link
*
* @param Link $link
* @return $this
*/
public function add(Link $link)
{
$this->links[$link->getRelation()] = $link;
return $this;
}
/**
* Render Link Url within a Link Collection
*
* @param Link $link
*/
protected function renderUrlForLink(Link $link)
{
if (!$link->isComplete() && $this->renderLinks) {
$linkUrl = call_user_func($this->getUrlHelper(), $link->getRoute(), $link->getRouteParams(), $link->getRouteOptions());
$url = call_user_func($this->getServerUrlHelper(), $linkUrl);
$link->setUrl($url);
}
}
/**
* Generates Links and add them to a Link Collection for pagination
* using Link Relation Specification and a provided Resource Event
*
* @see http://www.iana.org/assignments/link-relations/link-relations.xhtml
* @param ResourceEvent $e
*/
public function composeLinksFromResourceEvent(ResourceEvent $e)
{
$params = $e->getParams() instanceof \ArrayObject ? $e->getParams()->getArrayCopy() : $e->getParams();
$params = ArrayUtils::merge($e->getRouteMatch()->getParams(), $params);
$params = ArrayUtils::merge(array('resource' => $e->getResourceIdentifier()), $params);
$route = $e->getRouteMatch()->getMatchedRouteName();
// Calculate last page
$lastPage = round($this->getTotalItems() / $this->getPageSize());
if ($lastPage <= 1) {
$lastPage = false;
}
$page = $this->getPage() + 1;
$nextPage = $page < $lastPage ? $page + 1 : false;
$prevPage = $page > 1 ? $page - 1 : false;
if ($page > 1) {
$first = new Link('first');
$first->setRoute($route);
$first->setRouteParams($params);
$this->getLinks()->add($first);
}
if ($nextPage) {
$next = new Link('next');
$next->setRoute($route);
$next->setRouteParams($params);
$next->setRouteOptions(array('query' => array('page' => $nextPage)));
$this->getLinks()->add($next);
}
if ($prevPage) {
$prev = new Link('prev');
$prev->setRoute($route);
$prev->setRouteParams($params);
$prev->setRouteOptions(array('query' => array('page' => $prevPage)));
$this->getLinks()->add($prev);
}
if ($lastPage) {
$last = new Link('last');
$last->setRoute($route);
$last->setRouteParams($params);
$last->setRouteOptions(array('query' => array('page' => $lastPage)));
$this->getLinks()->add($last);
}
}
