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matomo / app / libs / HTML / QuickForm2 / Rule / Nonempty.php

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Nonempty.php

142 lines

1	<?php
2	/**
3	* Rule checking that the field is not empty
4	*
5	* PHP version 5
6	*
7	* LICENSE:
8	*
9	* Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>,
10	* Bertrand Mansion <golgote@mamasam.com>
11	* All rights reserved.
12	*
13	* Redistribution and use in source and binary forms, with or without
14	* modification, are permitted provided that the following conditions
15	* are met:
16	*
17	* * Redistributions of source code must retain the above copyright
18	* notice, this list of conditions and the following disclaimer.
19	* * Redistributions in binary form must reproduce the above copyright
20	* notice, this list of conditions and the following disclaimer in the
21	* documentation and/or other materials provided with the distribution.
22	* * The names of the authors may not be used to endorse or promote products
23	* derived from this software without specific prior written permission.
24	*
25	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
26	* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
27	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
29	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
33	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36	*
37	* @category HTML
38	* @package HTML_QuickForm2
39	* @author Alexey Borzov <avb@php.net>
40	* @author Bertrand Mansion <golgote@mamasam.com>
41	* @license http://opensource.org/licenses/bsd-license.php New BSD License
42	* @version SVN: $Id: Nonempty.php 299706 2010-05-24 18:32:37Z avb $
43	* @link http://pear.php.net/package/HTML_QuickForm2
44	*/
45
46	/**
47	* Base class for HTML_QuickForm2 rules
48	*/
49	// require_once 'HTML/QuickForm2/Rule.php';
50
51	/**
52	* Rule checking that the field is not empty
53	*
54	* Handles simple form fields, file uploads and Containers.
55	*
56	* When validating <select multiple> fields and Containers it may use an
57	* optional configuration parameter for minimum number of nonempty values,
58	* defaulting to 1. It can be passed either to
59	* {@link HTML_QuickForm2_Rule::__construct() the Rule constructor} as local
60	* configuration or to {@link HTML_QuickForm2_Factory::registerRule()} as
61	* global one. As usual, global configuration overrides local.
62	*
63	* <code>
64	* // Required rule is 'nonempty' with a bit of special handling
65	* $login->addRule('required', 'Please provide your login');
66	* $multiSelect->addRule('required', 'Please select at least two options', 2);
67	* </code>
68	*
69	* @category HTML
70	* @package HTML_QuickForm2
71	* @author Alexey Borzov <avb@php.net>
72	* @author Bertrand Mansion <golgote@mamasam.com>
73	* @version Release: @package_version@
74	*/
75	class HTML_QuickForm2_Rule_Nonempty extends HTML_QuickForm2_Rule
76	{
77	protected function validateOwner()
78	{
79	if ($this->owner instanceof HTML_QuickForm2_Container) {
80	$nonempty = 0;
81	foreach ($this->owner->getRecursiveIterator(RecursiveIteratorIterator::LEAVES_ONLY) as $child) {
82	$rule = new self($child);
83	if ($rule->validateOwner()) {
84	$nonempty++;
85	}
86	}
87	return $nonempty >= $this->getConfig();
88	}
89
90	$value = $this->owner->getValue();
91	if ($this->owner instanceof HTML_QuickForm2_Element_InputFile) {
92	return isset($value['error']) && (UPLOAD_ERR_OK == $value['error']);
93	} elseif (is_array($value)) {
94	return count(array_filter($value, 'strlen')) >= $this->getConfig();
95	} else {
96	return (bool)strlen($value);
97	}
98	}
99
100	/**
101	* Sets minimum number of nonempty values
102	*
103	* This is useful for multiple selects and Containers, will be ignored for
104	* all other elements. Defaults to 1, thus multiple select will be
105	* considered not empty if at least one option is selected, Container will
106	* be considered not empty if at least one contained element is not empty.
107	*
108	* @param int Maximum allowed size
109	* @return HTML_QuickForm2_Rule
110	* @throws HTML_QuickForm2_InvalidArgumentException if a bogus size limit was provided
111	*/
112	public function setConfig($config)
113	{
114	if (is_null($config)) {
115	$config = 1;
116	} elseif (1 > intval($config)) {
117	throw new HTML_QuickForm2_InvalidArgumentException(
118	'Nonempty Rule accepts a positive count of nonempty values, ' .
119	preg_replace('/\s+/', ' ', var_export($config, true)) . ' given'
120	);
121	}
122	return parent::setConfig(intval($config));
123	}
124
125	protected function getJavascriptCallback()
126	{
127	$js = "function() {var value = " . $this->owner->getJavascriptValue() . ";";
128	if (!$this->owner instanceof HTML_QuickForm2_Container) {
129	$js .= " if (!value instanceof Array) { return value != ''; } else { " .
130	"var valid = 0; for (var i = 0; i < value.length; i++) { " .
131	"if ('' != value[i]) { valid++; } } return valid >= " . $this->getConfig() . "; } }";
132	} else {
133	$js .= " var values = value.getValues(); var valid = 0; " .
134	"for (var i = 0; i < values.length; i++) { " .
135	"if ('' != values[i]) { valid++; } } return valid >= " . $this->getConfig() . "; }";
136	}
137	return $js;
138	}
139	}
140
141	?>
142