<?php

namespace App\License\Form\Element;

class Naics extends \Zend_Form_Element_Xhtml
{
    public $helper = 'formNaics';
    protected $_isArray = true;

    public function isValid($value, $context = null)
    {
        $isValid = parent::isValid($value, $context);
        return $this->isValidSize($value) && $isValid;
    }

    protected function isValidSize($value)
    {
        if (count($value) > 10) {
            $this->addError('You can not choose more than 10 Vendor Classifications');
            return false;
        }
        return true;
    }

    /**
     * Native method is overridden to avoid wrong behaviour when error messages is multiplied for each value
     * @return array
     */
    protected function _getErrorMessages()
    {
        $translator = $this->getTranslator();
        $messages   = $this->getErrorMessages();
        $value      = $this->getValue();
        foreach ($messages as $key => $message) {
            if (null !== $translator) {
                $message = $translator->translate($message);
            }
            $messages[$key] = str_replace('%value%', $value, $message);
        }
        return $messages;
    }
}