public function validate($groups = null, $fields = null, $exclude_fields = null, $exclude_types = null)
{
if (parent::validate($groups, $fields, $exclude_fields)) {
$qb = static::select('item.id, item.code')->where("item.code = '{$this->code}'");
if (isset($this->id)) {
$qb->andWhere("item.id != {$this->id}");
}
// Throw an error if there are other languages set to this
if (count($qb->getQuery()->getArrayResult()) > 0) {
$this->addErrorForField('code', 'This language has already been added!');
}
return count($this->errors) === 0;
}
return false;
}
