159 lines
4.4 KiB
PHP
159 lines
4.4 KiB
PHP
<?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) 2015 (original work) Open Assessment Technologies SA;
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*
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*
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*/
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namespace oat\taoQtiItem\model\flyExporter\extractor;
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/**
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* Extract given column of item ontology data
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*
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* Class OntologyExtractor
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* @package oat\taoQtiItem\model\simpleExporter
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*/
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class OntologyExtractor implements Extractor
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{
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/**
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* Item to export
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* @var \core_kernel_classes_Resource
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*/
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protected $item;
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/**
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* Request columns
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* @var array
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*/
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protected $columns = [];
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/**
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* Output of data
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* @var array
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*/
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protected $data = [];
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/**
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* Set item to export
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*
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* @param \core_kernel_classes_Resource $item
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* @return Extractor $this
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*/
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public function setItem(\core_kernel_classes_Resource $item)
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{
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$this->item = $item;
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}
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/**
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* Add column to export
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* Check if core_kernel_classes_Property exists into $config
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*
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* @param $column
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* @param array $config
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* @throws ExtractorException
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* @return Extractor $this
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*/
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public function addColumn($column, array $config)
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{
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if (!isset($config['property'])) {
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throw new ExtractorException('Property config is missing.');
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}
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$property = new \core_kernel_classes_Property($config['property']);
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if (!$property->exists()) {
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throw new ExtractorException('Property config is not a valid property uri.');
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}
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$config['property'] = $property;
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$this->columns[$column] = $config;
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return $this;
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}
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/**
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* Get ontology values of requested item properties
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*
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* @return $this
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* @throws \Exception
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*/
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public function run()
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{
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$this->data = [];
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if (empty($this->item) || !($this->item instanceof \core_kernel_classes_Resource)) {
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throw new ExtractorException('Export item not set.');
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}
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$properties = [];
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foreach ($this->columns as $config) {
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$properties[] = $config['property'];
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}
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$values = $this->item->getPropertiesValues($properties);
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foreach ($this->columns as $column => $config) {
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try {
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$data = [];
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foreach ($values[$config['property']->getUri()] as $itemValue) {
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if (is_array($itemValue)) {
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array_walk($itemValue, function (&$value) {
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$resource = new \core_kernel_classes_Resource($value);
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$value = $resource->getLabel();
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});
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if (isset($config['delimiter'])) {
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$delimiter = $config['delimiter'];
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} else {
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$delimiter = self::DEFAULT_PROPERTY_DELIMITER;
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}
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$data[] = explode($delimiter, $itemValue);
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continue;
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}
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$data[] = ($itemValue instanceof \core_kernel_classes_Resource)
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? $itemValue->getLabel()
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: str_replace('"', '""', (string) $itemValue);
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}
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} catch (\Exception $e) {
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\common_Logger::e('ERROR on column ' . $column . ' : ' . $e->getMessage());
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$data = ['N/A'];
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}
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$this->data[$column] = implode(self::DEFAULT_PROPERTY_DELIMITER, $data);
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}
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$this->columns = [];
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return $this;
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}
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/**
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* Return formatted output
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* @return array
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*/
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public function getData()
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{
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return $this->data;
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}
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/**
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* Get human readable declaration class
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* @return string
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*/
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public function __toPhpCode()
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{
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return 'new ' . get_class($this) . '()';
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}
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}
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