tao-test/app/taoProctoring/model/datatable/DeliveriesMonitorDatatable.php

<?php
/**
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2017 (original work) Open Assessment Technologies SA ;
 *
 */

namespace oat\taoProctoring\model\datatable;

use oat\tao\model\datatable\implementation\DatatableRequest;
use oat\tao\model\datatable\DatatablePayload;
use oat\taoProctoring\model\execution\DeliveryExecutionList;
use Zend\ServiceManager\ServiceLocatorAwareInterface;
use Zend\ServiceManager\ServiceLocatorAwareTrait;
use oat\taoProctoring\model\ProctorService;
use oat\taoProctoring\helpers\DeliveryHelper;

/**
 * Class DeliveriesMonitorDatatable
 * @package oat\taoProctoring\model\datatable
 * @author Aleh Hutnikau, <hutnikau@1pt.com>
 */
class DeliveriesMonitorDatatable implements DatatablePayload, ServiceLocatorAwareInterface
{
    use ServiceLocatorAwareTrait;

    /**
     * @var DatatableRequest
     */
    protected $request;

    /**
     * @var DatatableRequest
     */
    protected $datatableRequest;

    /**
     * @var \core_kernel_classes_Resource
     */
    protected $delivery;

    /**
     * DeliveriesMonitorDatatable constructor.
     * @param \core_kernel_classes_Resource $delivery
     * @param \Request $request
     */
    public function __construct(\core_kernel_classes_Resource $delivery = null, $request)
    {
        $this->datatableRequest = DatatableRequest::fromGlobals();
        $this->request = $request;
        $this->delivery = $delivery;
    }

    public function getPayload()
    {
        $context = $this->request->hasParameter('context') ? $this->request->getParameter('context') : null;
        $filters = [];
        foreach ($this->datatableRequest->getFilters() as $filterKey => $filterValue) {
            if ($filterKey === 'start_time') {
                $times = explode(' - ', $filterValue);
                $filters[] = ['start_time' => '>' . $times[0]];
                if (isset($times[1])) {
                    $filters[] = ['start_time' => '<' . $times[1]];
                }
            } elseif ($filterKey === 'tag') {
                $filters[] = [$filterKey => $filterValue];
            } else {
                $filters[] = [$filterKey => 'LIKE %'.$filterValue.'%'];
            }
        }
        $options = [];
        $options['filters'] = $filters;
        $orderCol = DeliveryHelper::adjustColumnName($this->datatableRequest->getSortBy());
        if ($orderCol) {
            $options['order'] = join(' ', [
                $orderCol,
                $this->datatableRequest->getSortOrder(),
                $this->datatableRequest->getSortType()
            ]);
        }
        $options['limit'] = $this->datatableRequest->getRows();
        $options['offset'] = ($this->datatableRequest->getPage() - 1) * $this->datatableRequest->getRows();

        $service = $this->getServiceLocator()->get(ProctorService::SERVICE_ID);
        $proctor = \common_session_SessionManager::getSession()->getUser();
        $executions = $service->getProctorableDeliveryExecutions($proctor, $this->delivery, $context, $options);
        $total = $service->countProctorableDeliveryExecutions($proctor, $this->delivery, $context, $options);
        $totalPages = ceil($total / $this->datatableRequest->getRows());

        return $this->doPostProcessing($executions, $total, $totalPages);
    }

    /**
     * @param array $executionsData
     * @param integer $amount
     * @param integer $pages
     * @return array
     * @throws \common_ext_ExtensionException
     */
    protected function doPostProcessing(array $executionsData, $amount, $pages)
    {
        return [
            'success' => true,
            'amount' => $amount,
            'total' => $pages,
            'page' => $this->datatableRequest->getPage(),
            'rows' => $this->datatableRequest->getRows(),
            'data' => $this->getDeliveryHelperService()->adjustDeliveryExecutions($executionsData),
        ];
    }

    /**
     * @return array
     */
    public function jsonSerialize()
    {
        return $this->getPayload();
    }

    /**
     * @return DeliveryExecutionList
     */
    private function getDeliveryHelperService()
    {
        return $this->getServiceLocator()->get(DeliveryExecutionList::class);
    }
}