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Callback.php

175 lines

1	<?php
2	/**
3	* Zend Framework
4	*
5	* LICENSE
6	*
7	* This source file is subject to the new BSD license that is bundled
8	* with this package in the file LICENSE.txt.
9	* It is also available through the world-wide-web at this URL:
10	* http://framework.zend.com/license/new-bsd
11	* If you did not receive a copy of the license and are unable to
12	* obtain it through the world-wide-web, please send an email
13	* to license@zend.com so we can send you a copy immediately.
14	*
15	* @category Zend
16	* @package Zend_Validate
17	* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
18	* @license http://framework.zend.com/license/new-bsd New BSD License
19	* @version $Id: Callback.php 23775 2011-03-01 17:25:24Z ralph $
20	*/
21
22	/**
23	* @see Zend_Validate_Abstract
24	*/
25	// require_once 'Zend/Validate/Abstract.php';
26
27	/**
28	* @category Zend
29	* @package Zend_Validate
30	* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
31	* @license http://framework.zend.com/license/new-bsd New BSD License
32	*/
33	class Zend_Validate_Callback extends Zend_Validate_Abstract
34	{
35	/**
36	* Invalid callback
37	*/
38	const INVALID_CALLBACK = 'callbackInvalid';
39
40	/**
41	* Invalid value
42	*/
43	const INVALID_VALUE = 'callbackValue';
44
45	/**
46	* Validation failure message template definitions
47	*
48	* @var array
49	*/
50	protected $_messageTemplates = array(
51	self::INVALID_VALUE => "'%value%' is not valid",
52	self::INVALID_CALLBACK => "An exception has been raised within the callback",
53	);
54
55	/**
56	* Callback in a call_user_func format
57	*
58	* @var string\|array
59	*/
60	protected $_callback = null;
61
62	/**
63	* Default options to set for the filter
64	*
65	* @var mixed
66	*/
67	protected $_options = array();
68
69	/**
70	* Sets validator options
71	*
72	* @param string\|array $callback
73	* @param mixed $max
74	* @param boolean $inclusive
75	* @return void
76	*/
77	public function __construct($callback = null)
78	{
79	if (is_callable($callback)) {
80	$this->setCallback($callback);
81	} elseif (is_array($callback)) {
82	if (isset($callback['callback'])) {
83	$this->setCallback($callback['callback']);
84	}
85	if (isset($callback['options'])) {
86	$this->setOptions($callback['options']);
87	}
88	}
89
90	if (null === ($initializedCallack = $this->getCallback())) {
91	// require_once 'Zend/Validate/Exception.php';
92	throw new Zend_Validate_Exception('No callback registered');
93	}
94	}
95
96	/**
97	* Returns the set callback
98	*
99	* @return mixed
100	*/
101	public function getCallback()
102	{
103	return $this->_callback;
104	}
105
106	/**
107	* Sets the callback
108	*
109	* @param string\|array $callback
110	* @return Zend_Validate_Callback Provides a fluent interface
111	*/
112	public function setCallback($callback)
113	{
114	if (!is_callable($callback)) {
115	// require_once 'Zend/Validate/Exception.php';
116	throw new Zend_Validate_Exception('Invalid callback given');
117	}
118	$this->_callback = $callback;
119	return $this;
120	}
121
122	/**
123	* Returns the set options for the callback
124	*
125	* @return mixed
126	*/
127	public function getOptions()
128	{
129	return $this->_options;
130	}
131
132	/**
133	* Sets options for the callback
134	*
135	* @param mixed $max
136	* @return Zend_Validate_Callback Provides a fluent interface
137	*/
138	public function setOptions($options)
139	{
140	$this->_options = (array) $options;
141	return $this;
142	}
143
144	/**
145	* Defined by Zend_Validate_Interface
146	*
147	* Returns true if and only if the set callback returns
148	* for the provided $value
149	*
150	* @param mixed $value
151	* @return boolean
152	*/
153	public function isValid($value)
154	{
155	$this->_setValue($value);
156
157	$options = $this->getOptions();
158	$callback = $this->getCallback();
159	$args = func_get_args();
160	$options = array_merge($args, $options);
161
162	try {
163	if (!call_user_func_array($callback, $options)) {
164	$this->_error(self::INVALID_VALUE);
165	return false;
166	}
167	} catch (Exception $e) {
168	$this->_error(self::INVALID_CALLBACK);
169	return false;
170	}
171
172	return true;
173	}
174	}
175