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<?php
namespace Kanboard\Filter;
use Kanboard\Core\DateParser;
/**
* Base date filter class
*
* @package filter
* @author Frederic Guillot
*/
abstract class BaseDateFilter extends BaseFilter
{
/**
* DateParser object
*
* @access protected
* @var DateParser
*/
protected $dateParser;
/**
* Set DateParser object
*
* @access public
* @param DateParser $dateParser
* @return $this
*/
public function setDateParser(DateParser $dateParser)
{
$this->dateParser = $dateParser;
return $this;
}
/**
* Parse operator in the input string
*
* @access protected
* @return string
*/
protected function parseOperator()
{
$operators = array(
'<=' => 'lte',
'>=' => 'gte',
'<' => 'lt',
'>' => 'gt',
);
foreach ($operators as $operator => $method) {
if (strpos($this->value, $operator) === 0) {
$this->value = substr($this->value, strlen($operator));
return $method;
}
}
return '';
}
/**
* Apply a date filter
*
* @access protected
* @param string $field
*/
protected function applyDateFilter($field)
{
$method = $this->parseOperator();
$timestamp = $this->dateParser->getTimestampFromIsoFormat($this->value);
if ($method !== '') {
$this->query->$method($field, $this->getTimestampFromOperator($method, $timestamp));
} else {
$this->query->gte($field, $timestamp);
$this->query->lte($field, $timestamp + 86399);
}
}
/**
* Get timestamp from the operator
*
* @access public
* @param string $method
* @param integer $timestamp
* @return integer
*/
protected function getTimestampFromOperator($method, $timestamp)
{
switch ($method) {
case 'lte':
return $timestamp + 86399;
case 'lt':
return $timestamp;
case 'gte':
return $timestamp;
case 'gt':
return $timestamp + 86400;
}
return $timestamp;
}
}
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