Question

Hi there I have just gone through a code and saw a line of Zend validation. I am unable to understand what it means.

   $affiliateModel = new AffiliateUser();
   $metaData = $affiliateModel->info('metadata');

And here is my form element

  $first_name = new Zend_Form_Element_Text('first_name');
  $first_name->setRequired(true)
            ->addFilter('StringTrim')
            ->addValidator('StringLength', false, array(2, $metaData['first_name']['LENGTH']))
            ->setDecorators(array('ViewHelper', 'errors'));

I know what every line do but what this line will do

->addValidator('StringLength', false, array(2, $metaData['first_name']['LENGTH']))

Does any body will explain what this validator will do?

Answer 1

->addValidator('StringLength', false, array(2, $metaData['first_name']['LENGTH']));

Will add a validator that will only consider a string valid if it’s length falls in [2, x] where x is the $metaData[...][...] value. (Internally, the form will create and configure a Zend_Validate_StringLength instance.)