/**
* Prepares the default column configuration for the grid view
*
* @return mixed the default column configuration for the gridview
*/
protected function createColumnConfig()
{
//prepare column config
return ['happened_at:datetime', AuditTrailHelper::createChangeTypeColumnConfig($this->changeTypeCallback), AuditTrailHelper::createUserIdColumnConfig($this->userIdCallback), AuditTrailHelper::createDataColumnConfig($this->dataTableOptions, $this->dataTableColumnWidths, $this->hiddenAttributes, $this->attributeOutput)];
}