57 lines
2.0 KiB
PHP
57 lines
2.0 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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* Validator to verify the identifiers of the property indexes
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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_IndexIdentifier extends tao_helpers_form_Validator
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{
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/**
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* evalute the identifier
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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($values)
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{
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//evaluate identifier, starts with letter, contains letters, numbers and _, ends with letter, number
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if (preg_match("/^[a-z]+[a-z_0-9]*$/", $values) === 1) {
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return true;
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} else {
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if (!$this->hasOption('message')) {
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$message = empty($values)
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? __('The index identifier should not be empty')
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: __('"%s" is not a valid index identifier. It must start with a letter and contain letters, numbers or underscores only', $values)
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;
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$this->setMessage($message);
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}
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}
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return false;
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}
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}
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