Zend validators and error messages: addValidator and addErrorMessage

问题

If I have a form element that has multiple validators attached to it (3 in this example), how would I use addErrorMessage to create custom error messages when each unique validator fails. Is there a way to add a custom message for each validator?

$element = new Zend_Form_Element_Text()...
$element->....
        ->addValidator(...)
        ->addValidator(...)
        ->addValidator(...)
        ->addErrorMessage()

回答1:

Typically it's done per validator error message, not per validator...

$element->setErrorMessages(array(Zend_Validate_...::CONSTANT => 'New Message'));

But I often prefer to override all of an element's errors to a single

$element->setErrorMessages(array('Single Error'));

or, if I need it per validator, this works...

$validator->setMessages('string error')

should override all a validator's errors to a single message. I could not find this documented anywhere, but it works for me. Because of this, it may not work for all versions?

To me, the error messaging handling is a bit messy unless you want to override every possible error message, but hopefully one of these solutions works for you.

Cheers

回答2:

Add your message along with the validator as below. Example:

->addValidator('StringLength', false, array(0,255,'messages'=>'Cannot be more than 255 chars'))

->addValidator('NotEmpty', true, array('messages'=>'Cannot be empty'))

回答3:

Add your message like this

->addValidator( 'Alpha', true, array( 'messages' => array( 'notAlpha' => "Please enter alphabetic character only in Product name.
") ));

Add validator message according to your error string

回答4:

addErrorMessage('Your Custom Message'); It is also easiest way to print the custom message.

The addErrorMessage is defined inside libraray/zend/Form/Elements.php

Hope it helps!!

来源：https://stackoverflow.com/questions/3844835/zend-validators-and-error-messages-addvalidator-and-adderrormessage