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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: StringLength.php 16223 2009-06-21 20:04:53Z thomas $
*/
/**
* @see Zend_Validate_Abstract
*/
require_once 'Zend/Validate/Abstract.php';
/**
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Validate_StringLength extends Zend_Validate_Abstract
{
const INVALID = 'stringLengthInvalid';
const TOO_SHORT = 'stringLengthTooShort';
const TOO_LONG = 'stringLengthTooLong';
/**
* @var array
*/
protected $_messageTemplates = array(
self::INVALID => "Invalid type given, value should be a string",
self::TOO_SHORT => "'%value%' is less than %min% characters long",
self::TOO_LONG => "'%value%' is greater than %max% characters long"
);
/**
* @var array
*/
protected $_messageVariables = array(
'min' => '_min',
'max' => '_max'
);
/**
* Minimum length
*
* @var integer
*/
protected $_min;
/**
* Maximum length
*
* If null, there is no maximum length
*
* @var integer|null
*/
protected $_max;
/**
* Encoding to use
*
* @var string|null
*/
protected $_encoding;
/**
* Sets validator options
*
* @param integer $min
* @param integer $max
* @return void
*/
public function __construct($min = 0, $max = null, $encoding = null)
{
$this->setMin($min);
$this->setMax($max);
$this->setEncoding($encoding);
}
/**
* Returns the min option
*
* @return integer
*/
public function getMin()
{
return $this->_min;
}
/**
* Sets the min option
*
* @param integer $min
* @throws Zend_Validate_Exception
* @return Zend_Validate_StringLength Provides a fluent interface
*/
public function setMin($min)
{
if (null !== $this->_max && $min > $this->_max) {
/**
* @see Zend_Validate_Exception
*/
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception("The minimum must be less than or equal to the maximum length, but $min >"
. " $this->_max");
}
$this->_min = max(0, (integer) $min);
return $this;
}
/**
* Returns the max option
*
* @return integer|null
*/
public function getMax()
{
return $this->_max;
}
/**
* Sets the max option
*
* @param integer|null $max
* @throws Zend_Validate_Exception
* @return Zend_Validate_StringLength Provides a fluent interface
*/
public function setMax($max)
{
if (null === $max) {
$this->_max = null;
} else if ($max < $this->_min) {
/**
* @see Zend_Validate_Exception
*/
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception("The maximum must be greater than or equal to the minimum length, but "
. "$max < $this->_min");
} else {
$this->_max = (integer) $max;
}
return $this;
}
/**
* Returns the actual encoding
*
* @return string
*/
public function getEncoding()
{
return $this->_encoding;
}
/**
* Sets a new encoding to use
*
* @param string $encoding
* @return Zend_Validate_StringLength
*/
public function setEncoding($encoding = null)
{
if ($encoding !== null) {
$orig = iconv_get_encoding('internal_encoding');
$result = iconv_set_encoding('internal_encoding', $encoding);
if (!$result) {
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception('Given encoding not supported on this OS!');
}
iconv_set_encoding('internal_encoding', $orig);
}
$this->_encoding = $encoding;
return $this;
}
/**
* Defined by Zend_Validate_Interface
*
* Returns true if and only if the string length of $value is at least the min option and
* no greater than the max option (when the max option is not null).
*
* @param string $value
* @return boolean
*/
public function isValid($value)
{
if (!is_string($value)) {
$this->_error(self::INVALID);
return false;
}
$this->_setValue($value);
if ($this->_encoding !== null) {
$length = iconv_strlen($value, $this->_encoding);
} else {
$length = iconv_strlen($value);
}
if ($length < $this->_min) {
$this->_error(self::TOO_SHORT);
}
if (null !== $this->_max && $this->_max < $length) {
$this->_error(self::TOO_LONG);
}
if (count($this->_messages)) {
return false;
} else {
return true;
}
}
}
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