问题
who gives me a hand to create a custom validator for Zend Framework, which checks that a date is in to a range?
Example:
dateGT = 2011-09-05
dateLT = 2011-07-05
if the form field is set to: dateFieldForm = 2011-08-15 I expect the validator returns true!
and if the form field is set to: dateFieldForm = 2011-10-15 I expect the validator returns false!
回答1:
Sorry, large code ahead:
<?php
/** @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 My_Validate_DateCompare extends Zend_Validate_Abstract
{
/**
* Error codes
* @const string
*/
const NOT_SAME = 'notSame';
const MISSING_TOKEN = 'missingToken';
const NOT_LATER = 'notLater';
const NOT_EARLIER = 'notEarlier';
const NOT_BETWEEN = 'notBetween';
/**
* Error messages
* @var array
*/
protected $_messageTemplates = array(
self::NOT_SAME => "The date '%value%' does not match the required",
self::NOT_BETWEEN => "The date is not in the valid range",
self::NOT_LATER => "The date '%value%' is not later than the required",
self::NOT_EARLIER => "The date '%value%' is not earlier than required",
self::MISSING_TOKEN => 'No date was provided to match against',
);
/**
* @var array
*/
protected $_messageVariables = array(
'token' => '_tokenString'
);
/**
* Original token against which to validate
* @var string
*/
protected $_tokenString;
protected $_token;
protected $_compare;
/**
* Sets validator options
*
* @param mixed $token
* @param mixed $compare
* @return void
*/
public function __construct($token = null, $compare = null)
{
if (null !== $token) {
$this->setToken($token);
$this->setCompare($compare);
}
}
/**
* Set token against which to compare
*
* @param mixed $token
* @return Zend_Validate_Identical
*/
public function setToken($token)
{
$this->_tokenString = (string) $token;
$this->_token = $token;
return $this;
}
/**
* Retrieve token
*
* @return string
*/
public function getToken()
{
return $this->_token;
}
/**
* Set compare against which to compare
*
* @param mixed $compare
* @return Zend_Validate_Identical
*/
public function setCompare($compare)
{
$this->_compareString = (string) $compare;
$this->_compare = $compare;
return $this;
}
/**
* Retrieve compare
*
* @return string
*/
public function getCompare()
{
return $this->_compare;
}
/**
* Defined by Zend_Validate_Interface
*
* Returns true if and only if a token has been set and the provided value
* matches that token.
*
* @param mixed $value
* @return boolean
*/
public function isValid($value)
{
$this->_setValue((string) $value);
$token = $this->getToken();
if ($token === null) {
$this->_error(self::MISSING_TOKEN);
return false;
}
$date1 = new Zend_Date($value);
$date2 = new Zend_Date($token);
// Not Later
if ($this->getCompare() === true){
if ($date1->compare($date2) < 0 || $date1->equals($date2)) {
$this->_error(self::NOT_LATER);
return false;
}
// Not Earlier
} elseif ($this->getCompare() === false) {
if ($date1->compare($date2) > 0 || $date1->equals($date2)) {
$this->_error(self::NOT_EARLIER);
return false;
}
// Exact Match
} elseif ($this->getCompare() === null) {
if (!$date1->equals($date2)) {
$this->_error(self::NOT_SAME);
return false;
}
// In Range
} else {
$date3 = new Zend_Date($this->getCompare());
if ($date1->compare($date2) < 0 || $date1->compare($date3) > 0) {
$this->_error(self::NOT_BETWEEN);
return false;
}
}
// Date is valid
return true;
}
}
Usage:
$element->addValidator(new My_Validate_DateCompare('startdate')); //exact match
$element->addValidator(new My_Validate_DateCompare('startdate', null)); //exact match
$element->addValidator(new My_Validate_DateCompare('startdate', 'enddate')); //between dates
$element->addValidator(new My_Validate_DateCompare('startdate', true)); //not later
$element->addValidator(new My_Validate_DateCompare('startdate', false)); //not earlier
Uses the globally set date format (stored in Zend_Registry('Locale')).
It is also advisable to customize the error messages per case.
Latest update: fixed wrong default optional parameter which should be NULL instead of True. Changed the messages to be less confusing. Some formatting and whitespace.
回答2:
I write a test phpunit for class by venimus. I hope it can help someone.
class Validate_DateCompareTest extends PHPUnit_Framework_TestCase {
public function dataForTest()
{
return array(
array('2011-06-05', '2011-06-01', '2011-06-10', true), //between dates
array('2011-06-10', '2011-06-01', '2011-06-10', true), //between dates
array('2011-06-01', '2011-06-01', '2011-06-10', true), //between dates
array('2011-06-15', '2011-06-01', '2011-06-10', false), //between dates
array('2011-05-30', '2011-06-01', '2011-06-10', false), //between dates
array('2011-06-01', '2011-06-01', null, true), //exact match
array('2011-06-15', '2011-06-01', null, false), //exact match
array('2011-05-30', '2011-06-01', null, false), //exact match
array('2011-06-02', '2011-06-01', true, true), //not later
array('2011-06-01', '2011-06-01', true, false), //not later
array('2011-05-30', '2011-06-01', true, false), //not later
array('2011-05-30', '2011-06-01', false, true), //not earlier
array('2011-06-01', '2011-06-01', false, false), //not earlier
array('2011-06-10', '2011-06-01', false, false), //not earlier
);
}
/**
* @dataProvider dataForTest
* @param $value
* @param $token
* @param $compare
* @param $expected
* @return void
*/
public function testDateCompare($value, $token, $compare, $expected)
{
/** @var $validate My_Validate_DateCompare */
$validate = new My_Validate_DateCompare($token, $compare);
$this->assertEquals(
$expected,
$validate->isValid($value),
"value: $value -- token: $token -- compare: $compare"
);
}
}
this class has been really helpful to me thanks again!
来源：https://stackoverflow.com/questions/6387792/zend-form-validate-range-date