80 lines
2.6 KiB
PHP
80 lines
2.6 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) 2008-2010 (original work) Deutsche Institut für Internationale Pädagogische Forschung (under the project TAO-TRANSFER);
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* 2009-2012 (update and modification) Public Research Centre Henri Tudor (under the project TAO-SUSTAIN & TAO-DEV);
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*
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*/
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/**
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* compares two form elements
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* possible options:
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* 'reference' FormElement, the form element to compare to
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* 'invert' boolean, validates only if values are not equal
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*
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* @access public
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* @author Joel Bout, <joel.bout@tudor.lu>
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* @package tao
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*/
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class tao_helpers_form_validators_Equals extends tao_helpers_form_Validator
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{
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// --- ASSOCIATIONS ---
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// --- ATTRIBUTES ---
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// --- OPERATIONS ---
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public function setOptions(array $options)
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{
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parent::setOptions($options);
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if (!$this->hasOption('reference') || !$this->getOption('reference') instanceof tao_helpers_form_FormElement) {
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throw new common_Exception("No FormElement provided as reference for Equals validator");
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}
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$reference = $this->getOption('reference');
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if ($this->hasOption('invert') && $this->getOption('invert')) {
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$this->setMessage(__('This should not equal %s', $reference->getDescription()));
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} else {
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$this->setMessage(__('This should equal %s', $reference->getDescription()));
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}
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}
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/**
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* Short description of method evaluate
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*
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* @access public
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* @author Joel Bout, <joel.bout@tudor.lu>
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* @param values
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* @return boolean
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*/
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public function evaluate($values)
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{
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$returnValue = (bool) false;
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$invert = $this->hasOption('invert') ? $this->getOption('invert') : false;
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$reference = $this->getOption('reference');
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$equals = ($values == $reference->getRawValue());
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$returnValue = $invert ? !$equals : $equals;
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return (bool) $returnValue;
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}
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}
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