96 lines
3.3 KiB
PHP
96 lines
3.3 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) 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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* Short description of class tao_helpers_form_validators_Callback
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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_Callback extends tao_helpers_form_Validator
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{
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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 (
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!$this->hasOption('function')
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&& !(($this->hasOption('class') || $this->hasOption('object'))
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&& $this->hasOption('method'))
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) {
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throw new Exception("Please define a callback function or method");
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}
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if ($this->hasOption('message')) {
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$this->setMessage($this->getOption('message'));
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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 string $values
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* @return bool
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* @throws common_Exception
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* @internal param $values
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*/
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public function evaluate($values)
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{
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$returnValue = (bool) false;
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if ($this->hasOption('function')) {
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$function = $this->getOption('function');
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if (function_exists($function)) {
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$callback = [$function];
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} else {
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throw new common_Exception("callback function does not exist");
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}
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} elseif ($this->hasOption('class')) {
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$class = $this->getOption('class');
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$method = $this->getOption('method');
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if (class_exists($class) && method_exists($class, $method)) {
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$callback = [$class, $method];
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} else {
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throw new common_Exception("callback method does not exist");
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}
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} elseif ($this->hasOption('object')) {
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$object = $this->getOption('object');
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$method = $this->getOption('method');
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if (method_exists($object, $method)) {
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$callback = [$object, $method];
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} else {
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throw new common_Exception("callback method does not exist");
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}
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}
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if ($this->hasOption('param')) {
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$returnValue = (bool)call_user_func($callback, $values, $this->getOption('param'));
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} else {
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$returnValue = (bool)call_user_func($callback, $values);
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}
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return (bool)$returnValue;
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}
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}
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