|
@ -0,0 +1,179 @@ |
|
|
|
|
|
<?php |
|
|
|
|
|
|
|
|
|
|
|
namespace SuperGear\Directus\Repositories; |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* class for paginate request |
|
|
|
|
|
* |
|
|
|
|
|
* @author Björn Hase |
|
|
|
|
|
* @license http://opensource.org/licenses/MIT The MIT License |
|
|
|
|
|
* @link https://gitlab.tentakelfabrik.de/super-gear/directus GitHub Repository |
|
|
|
|
|
* |
|
|
|
|
|
*/ |
|
|
|
|
|
abstract class PaginationRepositoryAbstract extends RepositoryAbstract |
|
|
|
|
|
{ |
|
|
|
|
|
/** current page */ |
|
|
|
|
|
protected $page; |
|
|
|
|
|
|
|
|
|
|
|
/** limit for request */ |
|
|
|
|
|
protected $limit; |
|
|
|
|
|
|
|
|
|
|
|
/** max pages */ |
|
|
|
|
|
protected $maxPages; |
|
|
|
|
|
|
|
|
|
|
|
/** pages that are visible */ |
|
|
|
|
|
protected $showPages = 7; |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* setting max pages |
|
|
|
|
|
* |
|
|
|
|
|
* @param integer |
|
|
|
|
|
* @param array |
|
|
|
|
|
* |
|
|
|
|
|
*/ |
|
|
|
|
|
protected function setMaxPages($limit, $results) |
|
|
|
|
|
{ |
|
|
|
|
|
$this->maxPages = intval(round($results['meta']['filter_count'] / $limit)); |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* getting offset for request |
|
|
|
|
|
* |
|
|
|
|
|
* @param integer |
|
|
|
|
|
* @return integer |
|
|
|
|
|
* |
|
|
|
|
|
*/ |
|
|
|
|
|
protected function getOffset($page, $limit) |
|
|
|
|
|
{ |
|
|
|
|
|
return (($page - 1) * $limit); |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* get pages that are showing |
|
|
|
|
|
* |
|
|
|
|
|
* @param integer |
|
|
|
|
|
* @return array |
|
|
|
|
|
* |
|
|
|
|
|
*/ |
|
|
|
|
|
protected function getPages($page) |
|
|
|
|
|
{ |
|
|
|
|
|
// results
|
|
|
|
|
|
$pages = []; |
|
|
|
|
|
|
|
|
|
|
|
// count of pages that can be shown
|
|
|
|
|
|
$showPages = $this->showPages; |
|
|
|
|
|
|
|
|
|
|
|
// get avarage value to show pages
|
|
|
|
|
|
$averagePages = $this->showPages / 2; |
|
|
|
|
|
|
|
|
|
|
|
// run throw all pages
|
|
|
|
|
|
for ($i = 1; $i <= $this->maxPages; $i++) { |
|
|
|
|
|
|
|
|
|
|
|
// check if $page has to show
|
|
|
|
|
|
$show = false; |
|
|
|
|
|
|
|
|
|
|
|
// show always first and last page
|
|
|
|
|
|
if ($i === 1 || $i === $this->maxPages) { |
|
|
|
|
|
$show = true; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
// if showing pages are aviable check if page can be shown
|
|
|
|
|
|
if ($show === false && $showPages > 0) { |
|
|
|
|
|
|
|
|
|
|
|
// if page from 1 to avarage
|
|
|
|
|
|
if (($i <= $averagePages && $page <= $averagePages) || |
|
|
|
|
|
|
|
|
|
|
|
// if page is less than maxPages
|
|
|
|
|
|
(($i >= ($maxPages - $averagePages)) && $page >= ($maxPages - $averagePages)) || |
|
|
|
|
|
|
|
|
|
|
|
// put current pages as avarage value
|
|
|
|
|
|
($i >= ($page - $averagePages) && $i <= ($page + $averagePages))) { |
|
|
|
|
|
$showPages--; |
|
|
|
|
|
$show = true; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
if ($show) { |
|
|
|
|
|
$pages[] = $i; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
return $pages; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* if previous is possible |
|
|
|
|
|
* |
|
|
|
|
|
* @param integer $page |
|
|
|
|
|
* |
|
|
|
|
|
*/ |
|
|
|
|
|
protected function getPrevious($page) |
|
|
|
|
|
{ |
|
|
|
|
|
$result = NULL; |
|
|
|
|
|
|
|
|
|
|
|
if ($page > 1) { |
|
|
|
|
|
$result = $page - 1; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
return $result; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* if next is possible |
|
|
|
|
|
* |
|
|
|
|
|
* @param integer $page |
|
|
|
|
|
* |
|
|
|
|
|
*/ |
|
|
|
|
|
protected function getNext($page) |
|
|
|
|
|
{ |
|
|
|
|
|
$result = NULL; |
|
|
|
|
|
|
|
|
|
|
|
if ($page < $this->maxPages) { |
|
|
|
|
|
$result = $page + 1; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
return $result; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* prepare query to get limited items |
|
|
|
|
|
* |
|
|
|
|
|
* @param integer $page |
|
|
|
|
|
* @param integer $limit |
|
|
|
|
|
* @param array $query |
|
|
|
|
|
* |
|
|
|
|
|
*/ |
|
|
|
|
|
protected function prepare($page, $limit, $query) |
|
|
|
|
|
{ |
|
|
|
|
|
// setting page and limit
|
|
|
|
|
|
$this->page = $page; |
|
|
|
|
|
$this->limit = $limit; |
|
|
|
|
|
|
|
|
|
|
|
return array_merge($query, [ |
|
|
|
|
|
'offset' => $this->getOffset($this->page, $this->limit), |
|
|
|
|
|
'limit' => $this->limit, |
|
|
|
|
|
'meta' => 'result_count,filter_count,total_count' |
|
|
|
|
|
]); |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* paginate results |
|
|
|
|
|
* |
|
|
|
|
|
* @param integer $page |
|
|
|
|
|
* @param integer $limit |
|
|
|
|
|
* @param array $results |
|
|
|
|
|
* |
|
|
|
|
|
*/ |
|
|
|
|
|
protected function paginate($results) |
|
|
|
|
|
{ |
|
|
|
|
|
$this->setMaxPages($this->limit, $results); |
|
|
|
|
|
|
|
|
|
|
|
$results['meta']['current'] = $this->page; |
|
|
|
|
|
$results['meta']['previous'] = $this->getPrevious($this->page); |
|
|
|
|
|
$results['meta']['next'] = $this->getNext($this->page); |
|
|
|
|
|
$results['meta']['pages'] = $this->getPages($this->page); |
|
|
|
|
|
$results['meta']['max_pages'] = $this->maxPages; |
|
|
|
|
|
|
|
|
|
|
|
return $results; |
|
|
|
|
|
} |
|
|
|
|
|
} |