/**
* Perform the action
* @param Model $model
* @param type $event
* @return HistoryLog|null Returns null when nothing changes
*/
public function performAction(Model $model, $event)
{
$modelPrevState = $model->getPrevState();
$changedValues = $model->getModifiedAttributes();
if (count($changedValues)) {
$history = new HistoryLog();
$history->version = $modelPrevState ? $modelPrevState->version + 1 : 0;
$history->model_type = get_class($model);
$history->model_id = $model->id;
$history->user_id = $model->getUserId();
$history->changed_value = json_encode($changedValues);
$history->save();
return $history;
}
return null;
}
/**
* Get the Model history states
* @param integer $limit
* @param integer $offset
* @return Collection | null Collection on success
*/
public function getStates($limit = 1, $offset = 0, $orderDirection = 'desc')
{
return HistoryLog::where('model_id', $this->id)->where('model_type', get_class($this))->orderBy('created_at', $orderDirection)->offset($offset)->limit($limit)->get();
}
