70 lines
2.3 KiB
PHP
70 lines
2.3 KiB
PHP
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<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2016 (original work) Open Assessment Technologies SA ;
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*/
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/**
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* @author Jean-Sébastien Conan <jean-sebastien.conan@vesperiagroup.com>
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*/
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namespace oat\taoQtiTest\models\runner\navigation;
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use oat\taoQtiTest\models\runner\RunnerServiceContext;
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/**
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* Class QtiRunnerPreviousItem
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* @package oat\taoQtiTest\models\runner\navigation
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*/
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class QtiRunnerNavigationPreviousItem implements RunnerNavigation
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{
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/**
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* Do the move
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* @param RunnerServiceContext $context
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* @param mixed $ref
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* @return boolean
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* @throws \common_Exception
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*/
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public function move(RunnerServiceContext $context, $ref)
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{
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/* @var AssessmentTestSession $session */
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$session = $context->getTestSession();
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$nextPosition = $session->getRoute()->getPosition() - 1;
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if ($context->isAdaptive()) {
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$shadowTest = $context->getShadowTest();
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$currentCatItemId = $context->getCurrentCatItemId();
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$search = array_search($currentCatItemId, $shadowTest);
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// Consider potential changes in the selected items.
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$context->selectAdaptiveNextItem();
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if ($search === 0) {
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QtiRunnerNavigation::checkTimedSectionExit($context, $nextPosition);
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$session->moveBack();
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} else {
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$context->persistCurrentCatItemId($shadowTest[$search - 1]);
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}
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} else {
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QtiRunnerNavigation::checkTimedSectionExit($context, $nextPosition);
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$session->moveBack();
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}
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return true;
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}
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}
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