Remove Duplicate

<?php
require_once "MyReport.php";

$report = new MyReport;
$report->run()->render();

<?php
//Step 1: Load KoolReport
require_once "../../../load.koolreport.php";

use \koolreport\processes\Limit;
use \koolreport\processes\Sort;

//Step 2: Creating Report class
class MyReport extends \koolreport\KoolReport
{
    protected function settings()
    {
        return array(
            "dataSources"=>array(
                "long_data"=>array(
                    "class"=>'\koolreport\datasources\CSVDataSource',
                    "fieldSeparator"=>"|",
                    'filePath'=>dirname(__FILE__)."/../../../databases/products.csv",
                )

            )
        );
    }
    protected function setup()
    {
        $this->src("long_data")
        ->pipe(new Limit(array(50)))
        ->pipe(new Sort(array(
            "productLine"=>"asc",
        )))
        ->pipe($this->dataStore("long_data"));
    }    
}

<?php
    use \koolreport\widgets\koolphp\Table;
?>
<div class="report-content">
    <div class="text-center">
        <h1>Remove Duplicate</h1>
        <p class="lead">How to set duplicate removal in Table</p>
    </div>
    <?php
    Table::create(array(
        "dataSource"=>$this->dataStore('long_data'),
        "columns"=>array(
            "productLine"=>array(
                "label"=>"Line"
            ),
            "productName"=>array(
                "label"=>"Product Name"
            ),
            "quantityInStock"=>array(
                "label"=>"Qty In Stock"
            )
        ),
        "cssClass"=>array(
            "table"=>"table-bordered table-striped table-hover"
        ),
        "removeDuplicate"=>array("productLine")
    ));
    ?>
</div>