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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2002-2008 (original work) Public Research Centre Henri Tudor & University of Luxembourg |
| 19 | * (under the project TAO & TAO2); |
| 20 | * 2008-2010 (update and modification) Deutsche Institut für Internationale Pädagogische Forschung |
| 21 | * (under the project TAO-TRANSFER); |
| 22 | * 2009-2012 (update and modification) Public Research Centre Henri Tudor |
| 23 | * (under the project TAO-SUSTAIN & TAO-DEV); |
| 24 | * 2012-2025 (update and modification) Open Assessment Technologies SA; |
| 25 | */ |
| 26 | |
| 27 | use oat\tao\model\featureFlag\FeatureFlagChecker; |
| 28 | use Psr\Container\ContainerExceptionInterface; |
| 29 | use Psr\Container\NotFoundExceptionInterface; |
| 30 | use tao_models_classes_export_ExportHandler as ExportHandlerInterface; |
| 31 | |
| 32 | /** |
| 33 | * This controller provide the actions to export items |
| 34 | * |
| 35 | * @author CRP Henri Tudor - TAO Team - {@link http://www.tao.lu} |
| 36 | * @license GPLv2 http://www.opensource.org/licenses/gpl-2.0.php |
| 37 | * @package taoItems |
| 38 | * |
| 39 | */ |
| 40 | class taoItems_actions_ItemExport extends tao_actions_Export |
| 41 | { |
| 42 | private const FEATURE_FLAG_QTI3_EXPORT = 'FEATURE_FLAG_QTI3_EXPORT'; |
| 43 | |
| 44 | /** |
| 45 | * overwrite the parent index to add the requiresRight for Items only |
| 46 | * |
| 47 | * @requiresRight id READ |
| 48 | * @throws common_Exception |
| 49 | * @see tao_actions_Import::index() |
| 50 | */ |
| 51 | public function index() |
| 52 | { |
| 53 | parent::index(); |
| 54 | } |
| 55 | |
| 56 | protected function getAvailableExportHandlers(): array |
| 57 | { |
| 58 | $returnValue = parent::getAvailableExportHandlers(); |
| 59 | |
| 60 | $itemModelClass = $this->getClass(taoItems_models_classes_itemModel::CLASS_URI_MODELS); |
| 61 | $itemModels = $itemModelClass->getInstances(); |
| 62 | foreach ($itemModels as $model) { |
| 63 | $impl = taoItems_models_classes_ItemsService::singleton()->getItemModelImplementation($model); |
| 64 | if (in_array('tao_models_classes_export_ExportProvider', class_implements($impl), true)) { |
| 65 | foreach ($impl->getExportHandlers() as $handler) { |
| 66 | if ($this->isHandlerEnabled($handler)) { |
| 67 | array_unshift($returnValue, $handler); |
| 68 | } |
| 69 | } |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | $instances = $this->getClassInstances(); |
| 74 | if (!count($instances)) { |
| 75 | $returnValue = array_filter( |
| 76 | $returnValue, |
| 77 | static function (ExportHandlerInterface $handler) { |
| 78 | return $handler instanceof tao_models_classes_export_RdfExporter; |
| 79 | } |
| 80 | ); |
| 81 | } |
| 82 | |
| 83 | |
| 84 | return $returnValue; |
| 85 | } |
| 86 | |
| 87 | public function getClassInstances(): array |
| 88 | { |
| 89 | $instances = []; |
| 90 | $classUri = $this->hasPostParameter('classUri') ? $this->getPostParameter('classUri') : ''; |
| 91 | if ($classUri) { |
| 92 | $class = $this->getClass(tao_helpers_Uri::decode($classUri)); |
| 93 | $instances = $class->getInstances(true); |
| 94 | } |
| 95 | return $instances; |
| 96 | } |
| 97 | |
| 98 | protected function getFormFactory( |
| 99 | array $handlers, |
| 100 | ExportHandlerInterface $exporter, |
| 101 | core_kernel_classes_Resource $selectedResource, |
| 102 | array $formData |
| 103 | ): tao_actions_form_Export { |
| 104 | $formFactory = parent::getFormFactory($handlers, $exporter, $selectedResource, $formData); |
| 105 | $instances = $this->getClassInstances(); |
| 106 | if (!count($instances)) { |
| 107 | $formFactory->setInfoBox( |
| 108 | __('<b>Note</b>: For empty classes, the RDF format<br />is the only available format.') |
| 109 | ); |
| 110 | } |
| 111 | return $formFactory; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Function returns items to export. |
| 116 | * Items that has no content (<b>QTI items</b> without <i>qti.xml</i> file or empty <b>Open Web Items</b>) will be |
| 117 | * filtered |
| 118 | * |
| 119 | * @return core_kernel_classes_Resource[] An array of items. |
| 120 | */ |
| 121 | protected function getResourcesToExport() |
| 122 | { |
| 123 | $resources = parent::getResourcesToExport(); |
| 124 | $service = taoItems_models_classes_ItemsService::singleton(); |
| 125 | |
| 126 | $resources = array_filter($resources, function ($val) use ($service) { |
| 127 | return $service->hasItemContent($val); |
| 128 | }); |
| 129 | |
| 130 | return $resources; |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * TODO: This was created only to temporary handle QTI3 Export feature. Will be removed. |
| 135 | * @throws ContainerExceptionInterface |
| 136 | * @throws NotFoundExceptionInterface |
| 137 | */ |
| 138 | private function isHandlerEnabled(ExportHandlerInterface $handler): bool |
| 139 | { |
| 140 | if ( |
| 141 | !$this->getPsrContainer()->get(FeatureFlagChecker::class)->isEnabled(self::FEATURE_FLAG_QTI3_EXPORT) |
| 142 | && $handler instanceof oat\taoQtiItem\model\Export\Qti3Package\Handler |
| 143 | ) { |
| 144 | return false; |
| 145 | } |
| 146 | |
| 147 | return true; |
| 148 | } |
| 149 | } |