| /** | |
| * Rule checking that the field is empty | |
| * | |
| * 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: Empty.php 299480 2010-05-19 06:55:03Z avb $ | |
| * @link http://pear.php.net/package/HTML_QuickForm2 | |
| */ | |
| /** | |
| * Base class for HTML_QuickForm2 rules | |
| */ | |
| // require_once 'HTML/QuickForm2/Rule.php'; | |
| /** | |
| * Rule checking that the field is empty | |
| * | |
| * Handles both simple form fields and file uploads, the latter are considered | |
| * valid iff no file upload was attempted. | |
| * | |
| * The rule doesn't make much sense if used separately, but can be very helpful | |
| * if chained: | |
| * <code> | |
| * $spamCheck->addRule('empty') | |
| * ->or_($email->createRule('nonempty', 'Supply a valid email if you want to receive our spam') | |
| * ->and_($email->createRule('email'))); | |
| * </code> | |
| * | |
| * @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_Empty extends HTML_QuickForm2_Rule | |
| { | |
| protected function validateOwner() | |
| { | |
| $value = $this->owner->getValue(); | |
| if (!$this->owner instanceof HTML_QuickForm2_Element_InputFile) { | |
| return 0 == strlen($value); | |
| } else { | |
| return isset($value['error']) && UPLOAD_ERR_NO_FILE == $value['error']; | |
| } | |
| } | |
| protected function getJavascriptCallback() | |
| { | |
| return "function() { return " . $this->owner->getJavascriptValue() . " == ''; }"; | |
| } | |
| } | |