Question

Currently Im developing on a website with Zend framework.

I needed to develop a location field similar to the one found here: http://www.truelocal.com.au/

Which allow user to input PostCode Values (consist of 4 numbers) or Suburb Name

I’m stuck at the moment in the Zend form validation part

Basically I need to ensure the Postcode values or Suburb Name exist in the database.

I’m able to use Zend_Validate_Db_RecordExists easily to check if the Postcode exist in my database.

$validator = new Zend_Validate_Db_RecordExists('postcodeTable', 'postcode');

But how can I also add another Suburb name Validation to check if Suburb Name exist in the database (Without conflicting with the Postcode validation check)?

Is there a clear and easy way to achieve this?

Do I need to write a custom validator? If so how can I do it?

Thanks so much in advance 🙂

Answer 1

I don’t think you can alias validators, like you can decorators, but you could extend Zend_Validate_Db_RecordExists, for example:

class App_Validate_Db_SuburbExists
    extends Zend_Validate_Db_RecordExists
{

}

Don’t forget to add your library’s validator prefixPath to the element e.g.

$element->addPrefixPath('App_Validate_Db', 'App/Validate/Db', 'validate');

Then you can add both validators with different options.

$element->addValidator(
            new App_Validate_Db_SuburbExists('suburbTable', 'suburb'))

        ->addValidator(
            new Zend_Validate_Db_RecordExists('postcodeTable', 'postcode'));