errorableimplementation.php

См. документацию.

<?
namespace Bitrix\Main;

trait ErrorableImplementation
{
    protected $errorCollection;

    public function hasErrors()
    {
        if ($this->errorCollection instanceof ErrorCollection)
        {
            return !$this->errorCollection->isEmpty();
        }
        else
        {
            return false;
        }
    }

    public function getErrors()
    {
        if ($this->errorCollection instanceof ErrorCollection)
        {
            return $this->errorCollection->toArray();
        }
        else
        {
            return [];
        }
    }

    public function getErrorByCode($code)
    {
        if ($this->errorCollection instanceof ErrorCollection)
        {
            return $this->errorCollection->getErrorByCode($code);
        }
        else
        {
            return null;
        }
    }
}