| /** | |
| * Rule for required elements | |
| * | |
| * PHP version 5 | |
| * | |
| * LICENSE: | |
| * | |
| * Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>, | |
| * Bertrand Mansion <golgote@mamasam.com> | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions | |
| * are met: | |
| * | |
| * * Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * * Redistributions in binary form must reproduce the above copyright | |
| * notice, this list of conditions and the following disclaimer in the | |
| * documentation and/or other materials provided with the distribution. | |
| * * The names of the authors may not be used to endorse or promote products | |
| * derived from this software without specific prior written permission. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
| * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| * | |
| * @category HTML | |
| * @package HTML_QuickForm2 | |
| * @author Alexey Borzov <avb@php.net> | |
| * @author Bertrand Mansion <golgote@mamasam.com> | |
| * @license http://opensource.org/licenses/bsd-license.php New BSD License | |
| * @version SVN: $Id: Required.php 294057 2010-01-26 21:10:28Z avb $ | |
| * @link http://pear.php.net/package/HTML_QuickForm2 | |
| */ | |
| /** | |
| * Rule checking that the form field is not empty | |
| */ | |
| // require_once 'HTML/QuickForm2/Rule/Nonempty.php'; | |
| /** | |
| * Rule for required elements | |
| * | |
| * The main difference from "nonempty" Rule is that | |
| * - elements to which this Rule is attached will be considered required | |
| * ({@link HTML_QuickForm2_Node::isRequired()} will return true for them) and | |
| * marked accordingly when outputting the form | |
| * - this Rule can only be added directly to the element and other Rules can | |
| * only be added to it via and_() method | |
| * | |
| * @category HTML | |
| * @package HTML_QuickForm2 | |
| * @author Alexey Borzov <avb@php.net> | |
| * @author Bertrand Mansion <golgote@mamasam.com> | |
| * @version Release: @package_version@ | |
| */ | |
| class HTML_QuickForm2_Rule_Required extends HTML_QuickForm2_Rule_Nonempty | |
| { | |
| /** | |
| * Disallows adding a rule to the chain with an "or" operator | |
| * | |
| * Required rules are different from all others because they affect the | |
| * visual representation of an element ("* denotes required field"). | |
| * Therefore we cannot allow chaining other rules to these via or_(), since | |
| * this will effectively mean that the field is not required anymore and the | |
| * visual difference is bogus. | |
| * | |
| * @param HTML_QuickForm2_Rule | |
| * @throws HTML_QuickForm2_Exception | |
| */ | |
| public function or_(HTML_QuickForm2_Rule $next) | |
| { | |
| throw new HTML_QuickForm2_Exception( | |
| 'or_(): Cannot add a rule to "required" rule' | |
| ); | |
| } | |
| } | |