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PaginateExpr.php
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PaginateExpr.php
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<?php
/*
* This file is part of the Cekurte package.
*
* (c) João Paulo Cercal <jpcercal@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Cekurte\Resource\Query\Language\Expr;
use Cekurte\Resource\Query\Language\Contract\ExprInterface;
use Cekurte\Resource\Query\Language\Exception\InvalidExprException;
use Cekurte\Resource\Query\Language\Expr\AbstractExpr;
/**
* PaginateExpr
*
* @author João Paulo Cercal <jpcercal@gmail.com>
*/
class PaginateExpr extends AbstractExpr implements ExprInterface
{
/**
* @var int
*/
protected $currentPageNumber;
/**
* @var int
*/
protected $maxResultsPerPage;
/**
* @param int $currentPageNumber
* @param int $maxResultsPerPage
*
* @throws InvalidExprException
*/
public function __construct($currentPageNumber, $maxResultsPerPage)
{
if (!is_int($currentPageNumber) && !is_numeric($currentPageNumber)) {
throw new InvalidExprException('The value of "currentPageNumber" must be an int data type.');
}
if (!is_int($maxResultsPerPage) && !is_numeric($maxResultsPerPage)) {
throw new InvalidExprException('The value of "maxResultsPerPage" must be an int data type.');
}
$currentPageNumber = $currentPageNumber + 0;
$maxResultsPerPage = $maxResultsPerPage + 0;
if (is_float($currentPageNumber)) {
throw new InvalidExprException('The value of "currentPageNumber" must be an int data type.');
}
if (is_float($maxResultsPerPage)) {
throw new InvalidExprException('The value of "maxResultsPerPage" must be an int data type.');
}
if ($currentPageNumber < 1) {
throw new InvalidExprException('The value of "currentPageNumber" can not be less than one.');
}
if ($maxResultsPerPage < 1) {
throw new InvalidExprException('The value of "maxResultsPerPage" can not be less than one.');
}
if ($maxResultsPerPage > 100) {
throw new InvalidExprException('The value of "maxResultsPerPage" can not be greater than one hundred.');
}
$this->expression = 'paginate';
$this->operator = 'paginate';
$this->field = null;
$this->value = $currentPageNumber . '-' . $maxResultsPerPage;
$this->currentPageNumber = $currentPageNumber;
$this->maxResultsPerPage = $maxResultsPerPage;
}
/**
* @return int
*/
public function getCurrentPageNumber()
{
return $this->currentPageNumber;
}
/**
* @return int
*/
public function getMaxResultsPerPage()
{
return $this->maxResultsPerPage;
}
/**
* @inheritdoc
*/
public function getName()
{
return 'Paginate';
}
}