yii2 mongodb - add comments to existing field how to - php

Question

I have a collection called work-monitor where-in I have two fields namely
assignor_remarks and assignee_remarks.
so when a comment is submitted by either assignor or assignee, I want to add those comments in the respective comment filed.
I am able to save the comments in the collection, but new comments is overriding the existing one.
my code is like this:
public function actionWorkUpdate($id)
{
\Yii::$app->request->enableCsrfValidation = false;
$work = $this->modelClass::find()->where(['_id'=>$id])->one();
$work->load(Yii::$app->getRequest()->getBodyParams(), '');
$work->assignee_remarks = ["timestamp"=>date('d-m-Y h:i'),"comments"=>$work->assignee_remarks];
$work->update();
return "success";
}
how I can achieve this.
update like in the example below:
"assignee_remarks":{"comment":"test comment","commentTime":2020-04-29 12.41},
{"comment":"test comment2","commentTime":2020-04-29 12.45},
{"comment":"test comment3","commentTime":2020-04-29 12.50}

Answer 1

Try something like that, if I have understood you correctly.
// In Work Model
public $assignee_remarks;
public function rules()
{
return [
//...
['assignee_remarks', 'safe'] // for free load
];
}
// In controller
/**
* In bodyParams you have new comment like assignee_remarks: 'some text'
* #param $id
* #return mixed
*/
public function actionWorkUpdate($id)
{
\Yii::$app->request->enableCsrfValidation = false;
$work = $this->modelClass::find()->where(['_id' => $id])->one();
$currentComments = $work->assignee_remarks ?? [];
$work->load(Yii::$app->getRequest()->getBodyParams(), '');
$currentComments[] = ["commentTime" => date('d-m-Y h:i'), "comment" => $work->assignee_remarks];
$work->assignee_remarks = $currentComments;
$result = $work->update();
if ($result === false) {
// validation error
} else {
return $result > 0 ? 'success' : 'fail';
}
}