请参阅此页面上的“注意:验证上下文” 。Zend_Form 将上下文作为第二个参数传递给每个 Zend_Form_Element::isValid 调用。因此,只需编写您自己的分析上下文的验证器。
编辑:
好吧,我想我会自己试一试。它没有经过测试,也不是万能的手段,但它会给你一个基本的想法。
class My_Validator_OneFieldShouldBePresent extend Zend_Validator_Abstract
{
const NOT_PRESENT = 'notPresent';
protected $_messageTemplates = array(
self::NOT_PRESENT => 'Field %field% is not present'
);
protected $_messageVariables = array(
'field' => '_field'
);
protected $_field;
protected $_listOfFields;
public function __construct( array $listOfFields )
{
$this->_listOfFields = $listOfFields;
}
public function isValid( $value, $context = null )
{
if( !is_array( $context ) )
{
$this->_error( self::NOT_PRESENT );
return false;
}
foreach( $this->_listOfFields as $field )
{
if( isset( $context[ $field ] ) )
{
return true;
}
}
$this->_field = $field;
$this->_error( self::NOT_PRESENT );
return false;
}
}
用法:
$oneOfTheseFieldsShouldBePresent = array( 'companyname', 'companyother' );
$companyname = new Zend_Form_Element_Text('companyname');
$companyname->setLabel('Company Name');
$companyname->setDecorators($decors);
$companyname->addValidator( new My_Validator_OneFieldShouldBePresent( $oneOfTheseFieldsShouldBePresent ) );
$this->addElement($companyname);
$companyother = new Zend_Form_Element_Text('companyother');
$companyother->setLabel('Company Other');
$companyother->setDecorators($decors);
$companyname->addValidator( new My_Validator_OneFieldShouldBePresent( $oneOfTheseFieldsShouldBePresent ) );
$this->addElement($companyother);