/**
* @param PaginatedDataInterface $data
*
* @return void
*/
private function addPagingLinksIfNeeded(PaginatedDataInterface $data)
{
if ($data->isCollection() === true && (0 < $data->getOffset() || $data->hasMoreItems() === true) && $this->getOriginalUri() !== null) {
$links = [];
$linkClosure = $this->createLinkClosure($data->getLimit());
$prev = DocumentInterface::KEYWORD_PREV;
$next = DocumentInterface::KEYWORD_NEXT;
$data->getOffset() <= 0 ?: ($links[$prev] = $linkClosure(max(0, $data->getOffset() - $data->getLimit())));
$data->hasMoreItems() === false ?: ($links[$next] = $linkClosure($data->getOffset() + $data->getLimit()));
$this->withLinks($links);
}
}
/**
* @param PaginatedDataInterface $data
* @param string $uri
*
* @return array
*/
protected function getRelationshipDescription(PaginatedDataInterface $data, $uri)
{
if ($data->hasMoreItems() === false) {
return [static::DATA => $data->getData()];
}
$buildUrl = function ($offset) use($data, $uri) {
$paramsWithPaging = [PaginationStrategyInterface::PARAM_PAGING_SKIP => $offset, PaginationStrategyInterface::PARAM_PAGING_SIZE => $data->getLimit()];
$fullUrl = $uri . '?' . http_build_query($paramsWithPaging);
return $fullUrl;
};
$links = [];
// It looks like relationship can only hold first data rows so we might need `next` link but never `prev`
if ($data->hasMoreItems() === true) {
$offset = $data->getOffset() + $data->getLimit();
$links[DocumentInterface::KEYWORD_NEXT] = $this->createLink($buildUrl($offset));
}
return [static::DATA => $data->getData(), static::LINKS => $links];
}