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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Plugins\Insights\DataTable\Filter;
use Piwik\DataTable\BaseFilter;
/**
* Limits the number of positive and negative values. A value is considered as positive if the value of $columnToRead
* is 0 or higher. A value is considered as negative in all other cases (< 0).
*/
class Limit extends BaseFilter
{
private $limitPositive;
private $limitNegative;
private $columnToRead;
public function __construct($table, $columnToRead, $limitPositiveValues, $limitNegativeValues)
{
$this->columnToRead = $columnToRead;
$this->limitPositive = (int) $limitPositiveValues;
$this->limitNegative = (int) $limitNegativeValues;
}
public function filter($table)
{
$countIncreaser = 0;
$countDecreaser = 0;
foreach ($table->getRows() as $key => $row) {
if ($row->getColumn($this->columnToRead) >= 0) {
$countIncreaser++;
if ($countIncreaser > $this->limitPositive && $this->limitPositive > -1) {
$table->deleteRow($key);
}
} else {
$countDecreaser++;
if ($countDecreaser > $this->limitNegative && $this->limitNegative > -1) {
$table->deleteRow($key);
}
}
}
}
}
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