<?php
namespace Jaxon\App;
use Jaxon\App\Pagination\Paginator;
trait PageDatabagTrait
{
/**
* The current page number.
*
* @var int
*/
private int $currentPage = 1;
/**
* Get the pagination databag name.
*
* @return string
*/
abstract protected function bagName(): string;
/**
* Get the pagination databag attribute.
*
* @return string
*/
abstract protected function bagAttr(): string;
/**
* Get the page number.
*
* @param int $pageNumber
*
* @return int
*/
private function getPageNumber(int $pageNumber): int
{
// If no page number is provided, then get the value from the databag.
return $pageNumber > 0 ? $pageNumber :
(int)$this->bag($this->bagName())->get($this->bagAttr(), 1);
}
/**
* Set the page number.
*
* @param int $currentPage
*
* @return void
*/
private function setCurrentPage(int $currentPage): void
{
// Save the current page in the databag.
$this->bag($this->bagName())->set($this->bagAttr(), $currentPage);
$this->currentPage = $currentPage;
}
/**
* Get the paginator for the component.
*
* @param int $pageNumber
*
* @return Paginator
*/
protected function paginator(int $pageNumber): Paginator
{
return $this->cl(Component\Pagination::class)
// Use the js class name as component item identifier.
->item($this->rq()->_class())
->paginator($this->getPageNumber($pageNumber), $this->limit(), $this->count())
// This callback will receive the final value of the current page number.
->page(function(int $currentPage) {
$this->setCurrentPage($currentPage);
});
}
/**
* Get the current page number
*
* @return int
*/
protected function currentPage(): int
{
return $this->currentPage;
}
}
|
Download
