Ip\Internal\Grid\Model\Field\RepositoryFile::afterUpdate PHP Method

    public function afterUpdate($recordId, $oldData, $newData)
    {
        if (!isset($oldData[$this->field])) {
            $oldData[$this->field] = '';
        }
        if (!isset($newData[$this->field])) {
            $newData[$this->field] = '';
        }
        if (!empty($oldData[$this->field]) && $oldData[$this->field] != $newData[$this->field]) {
            \Ip\Internal\Repository\Model::unbindFile($oldData[$this->field], $this->repositoryBindKey, $recordId);
        }
        if (!empty($newData[$this->field]) && $oldData[$this->field] != $newData[$this->field]) {
            \Ip\Internal\Repository\Model::bindFile($newData[$this->field][0], $this->repositoryBindKey, $recordId);
        }
    }