68 lines
2.3 KiB
PHP
68 lines
2.3 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) 2007-2010 (original work) Public Research Centre Henri Tudor & University of Luxembourg) (under the project TAO-QUAL);
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* 2008-2010 (update and modification) Deutsche Institut für Internationale Pädagogische Forschung (under the project TAO-TRANSFER);
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* 2017 (update and modification) Open Assessment Technologies SA (under the project TAO-PRODUCT);
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*/
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use oat\generis\model\RulesRdf;
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/**
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* Short description of class core_kernel_rules_Rule
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*
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* @access public
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* @author firstname and lastname of author, <author@example.org>
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* @package generis
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*/
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class core_kernel_rules_Rule extends core_kernel_classes_Resource
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{
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// --- ASSOCIATIONS ---
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// --- ATTRIBUTES ---
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/**
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* Short description of attribute expression
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*
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* @access public
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* @var Expression
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*/
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public $expression = null;
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// --- OPERATIONS ---
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/**
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* Short description of method getExpression
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*
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* @access public
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* @author firstname and lastname of author, <author@example.org>
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* @return core_kernel_rules_Expression
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*/
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public function getExpression()
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{
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$returnValue = null;
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common_Logger::i('Evaluating rule ' . $this->getLabel() . '(' . $this->getUri() . ')', ['Generis Rule']);
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if (empty($this->expression)) {
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$property = new core_kernel_classes_Property(RulesRdf::PROPERTY_RULE_IF);
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$this->expression = new core_kernel_rules_Expression($this->getUniquePropertyValue($property)->getUri(), __METHOD__);
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}
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$returnValue = $this->expression;
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return $returnValue;
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}
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}
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