fanbinit/rhymix
1
0
Fork 0
mirror of https://github.com/Lastorder-DC/rhymix.git synced 2026-01-04 01:01:41 +09:00
Code Issues Projects Releases Packages Wiki Activity

Make PageHandler to implement Iterator

Browse source
This commit is contained in:
Ji Yong, Kim 2022-12-10 04:24:11 +09:00
parent fd421c86fc
commit 65cd1265c9
1 changed files with 70 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

89
classes/page/PageHandler.class.php
View file

@ -10,16 +10,28 @@
* @remarks Getting total counts, number of pages, current page number, number of items per page,
* this class implements methods and contains variables for page navigation
*/
class PageHandler extends Handler
class PageHandler extends Handler implements Iterator
{
var $total_count = 0; ///< number of total items
var $total_page = 0; ///< number of total pages
var $cur_page = 0; ///< current page number
var $page_count = 10; ///< number of page links displayed at one time
var $first_page = 1; ///< first page number
var $last_page = 1; ///< last page number
var $point = 0; ///< increments per getNextPage()
/** @var int Number of total items */
public $total_count = 0;
/** @var int Number of total pages */
public $total_page = 0;
/** @var int Current page number */
public $cur_page = 0;
/** @var int Number of page links displayed at one time. */
public $page_count = 10;
/** @var int First page number */
public $first_page = 1;
/** @var int Last page number, same as $total_page */
public $last_page = 1;
/** @var int Iterator stepper */
var $point = 0;
/**
* constructor
@ -30,7 +42,7 @@ class PageHandler extends Handler
* @return void
*/
function __construct($total_count, $total_page, $cur_page, $page_count = 10)
public function __construct(int $total_count, int $total_page, int $cur_page, int $page_count = 10)
{
$this->total_count = $total_count;
$this->total_page = $total_page;
@ -49,14 +61,8 @@ class PageHandler extends Handler
$first_page -= $first_page + $page_count - 1 - $total_page;
}
$last_page = $total_page;
if($last_page > $total_page)
{
$last_page = $total_page;
}
$this->first_page = $first_page;
$this->last_page = $last_page;
$this->last_page = $total_page;
if($total_page < $this->page_count)
{
@ -68,7 +74,7 @@ class PageHandler extends Handler
* request next page
* @return int next page number
*/
function getNextPage()
public function getNextPage(): int
{
$page = $this->first_page + $this->point++;
if($this->point > $this->page_count || $page > $this->last_page)
@ -83,11 +89,56 @@ class PageHandler extends Handler
* @param int $offset
* @return int
*/
function getPage($offset)
public function getPage(int $offset): int
{
return max(min($this->cur_page + $offset, $this->total_page), '');
}
/**
* Rewind iterator stepper.
* @return void
*/
public function rewind ()
{
$this->point = 0;
}
/**
* Determine if a current iterated item is valid.
* @return bool
*/
public function valid (): bool
{
$page = $this->first_page + $this->point;
return $this->point <= $this->page_count && $page <= $this->last_page;
}
/**
* Get a current iterated page number.
* @return int
*/
public function current (): int
{
return $this->first_page + $this->point;
}
/**
* Get a current iterator stepper.
* @return int
*/
public function key (): int
{
return $this->point;
}
/**
* Step up the iterator.
* @return void
*/
public function next ()
{
$this->point++;
}
}
/* End of file PageHandler.class.php */
/* Location: ./classes/page/PageHandler.class.php */