There is also a Zend_Validate_Db_NoRecordExists validator that can be used for this.
http://framework.zend.com/manual/en/zend.validate.set.html#zend.validate.Db Check out the Excluding records section for allowing one email address (the one the user already has). Konr On Wed, Jan 20, 2010 at 1:02 PM, bparise <[email protected]> wrote: > > Thanks for your input! > We actually talked about doing that (custom validators) soon after we > realized that the isValid() methods were seemingly build *for* validators. > Trying to not repeat ourselves by creating custom validators > left-and-right, > I came up with a neat callback one... > > <?php > > class My_Validate_Callback extends Zend_Validate_Abstract > { > const ERROR_KEY = 'message'; > > private $_callback; > private $_params = array(); > > protected $_messageTemplates = array(); > > public function __construct($callback, $params = array(), $message) > { > $this->_callback = $callback; > $this->_params = $params; > $this->_messageTemplates = array(self::ERROR_KEY => $message); > } > > public function isValid($value) > { > $params = $this->_params; > $params[] = $value; > if (call_user_func_array($this->_callback, $params)) { > return true; > } else { > $this->_error(self::ERROR_KEY); > return false; > } > } > } > ?> > > Usage > > <?php > $email = new Zend_Form_Element_Text('email'); > $email->addValidator(new My_Callback_Validator(array('User', > 'isEmailUnique'), array(), 'Email is not unique'); > ?> > > The 2nd argument allows you to pass more data to the callback method > > <?php > > new My_Callback_Validator(array('User', 'isEmailUnique'), array(), 'Email > is > not unique') > Method sig: User::isEmailUnique($value); > > new My_Callback_Validator(array('User', 'isEmailUnique'), array('firstVar', > 'secondVar'), 'Email is not unique') > Method sig: User::isEmailUnique($first, $second, $value); > > > -- > View this message in context: > http://n4.nabble.com/Overriding-Zend-Form-isValid-tp1018622p1018652.html > Sent from the Zend Framework mailing list archive at Nabble.com. >
