/**
* Validate before save
*
* @param ValidationErrors $errors
* @return null
*/
function validate(&$errors)
{
if (!$this->validatePresenceOf('name', 3)) {
$errors->addError(lang('Document name must be at least 3 characters'), 'name');
}
// if
if (!$this->validatePresenceOf('category_id')) {
$errors->addError(lang('Category is required'), 'category_id');
}
// if
parent::validate($errors, true);
}
