142 lines
5.7 KiB
PHP
142 lines
5.7 KiB
PHP
<?php
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/**
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* Rule checking that the field is not empty
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*
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* PHP version 5
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*
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* LICENSE:
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*
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* Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>,
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* Bertrand Mansion <golgote@mamasam.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * The names of the authors may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @category HTML
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* @package HTML_QuickForm2
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* @author Alexey Borzov <avb@php.net>
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* @author Bertrand Mansion <golgote@mamasam.com>
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* @license http://opensource.org/licenses/bsd-license.php New BSD License
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* @version SVN: $Id: Nonempty.php 299706 2010-05-24 18:32:37Z avb $
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* @link http://pear.php.net/package/HTML_QuickForm2
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*/
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/**
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* Base class for HTML_QuickForm2 rules
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*/
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// require_once 'HTML/QuickForm2/Rule.php';
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/**
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* Rule checking that the field is not empty
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*
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* Handles simple form fields, file uploads and Containers.
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*
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* When validating <select multiple> fields and Containers it may use an
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* optional configuration parameter for minimum number of nonempty values,
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* defaulting to 1. It can be passed either to
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* {@link HTML_QuickForm2_Rule::__construct() the Rule constructor} as local
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* configuration or to {@link HTML_QuickForm2_Factory::registerRule()} as
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* global one. As usual, global configuration overrides local.
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*
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* <code>
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* // Required rule is 'nonempty' with a bit of special handling
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* $login->addRule('required', 'Please provide your login');
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* $multiSelect->addRule('required', 'Please select at least two options', 2);
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* </code>
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*
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* @category HTML
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* @package HTML_QuickForm2
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* @author Alexey Borzov <avb@php.net>
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* @author Bertrand Mansion <golgote@mamasam.com>
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* @version Release: @package_version@
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*/
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class HTML_QuickForm2_Rule_Nonempty extends HTML_QuickForm2_Rule
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{
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protected function validateOwner()
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{
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if ($this->owner instanceof HTML_QuickForm2_Container) {
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$nonempty = 0;
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foreach ($this->owner->getRecursiveIterator(RecursiveIteratorIterator::LEAVES_ONLY) as $child) {
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$rule = new self($child);
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if ($rule->validateOwner()) {
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$nonempty++;
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}
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}
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return $nonempty >= $this->getConfig();
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}
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$value = $this->owner->getValue();
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if ($this->owner instanceof HTML_QuickForm2_Element_InputFile) {
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return isset($value['error']) && (UPLOAD_ERR_OK == $value['error']);
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} elseif (is_array($value)) {
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return count(array_filter($value, 'strlen')) >= $this->getConfig();
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} else {
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return (bool)strlen($value);
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}
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}
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/**
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* Sets minimum number of nonempty values
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*
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* This is useful for multiple selects and Containers, will be ignored for
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* all other elements. Defaults to 1, thus multiple select will be
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* considered not empty if at least one option is selected, Container will
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* be considered not empty if at least one contained element is not empty.
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*
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* @param int Maximum allowed size
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* @return HTML_QuickForm2_Rule
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* @throws HTML_QuickForm2_InvalidArgumentException if a bogus size limit was provided
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*/
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public function setConfig($config)
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{
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if (is_null($config)) {
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$config = 1;
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} elseif (1 > intval($config)) {
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throw new HTML_QuickForm2_InvalidArgumentException(
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'Nonempty Rule accepts a positive count of nonempty values, ' .
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preg_replace('/\s+/', ' ', var_export($config, true)) . ' given'
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);
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}
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return parent::setConfig(intval($config));
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}
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protected function getJavascriptCallback()
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{
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$js = "function() {var value = " . $this->owner->getJavascriptValue() . ";";
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if (!$this->owner instanceof HTML_QuickForm2_Container) {
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$js .= " if (!value instanceof Array) { return value != ''; } else { " .
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"var valid = 0; for (var i = 0; i < value.length; i++) { " .
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"if ('' != value[i]) { valid++; } } return valid >= " . $this->getConfig() . "; } }";
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} else {
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$js .= " var values = value.getValues(); var valid = 0; " .
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"for (var i = 0; i < values.length; i++) { " .
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"if ('' != values[i]) { valid++; } } return valid >= " . $this->getConfig() . "; }";
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}
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return $js;
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}
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}
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?>
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