如何通过yii2在mongodb中插入多级记录 - How to insert multi-level record in mongodb via yii2

How to insert multi-level record in mongodb via yii2

例如-
我有以下记录要插入收藏

"panel_questions" : [
    {
        "question_id" : 1,
        "category_id" : 1
    },
    {
        "question_id" : 2,
        "category_id" : 1
    }
]

通过mongo，我可以通过下面的查询-来实现这一点

db.panel.update({"id":24},{$push:{panel_questions:{"question_id":2,"category_id":1}}});

但是我们如何在YI2中进行上述mongo查询

我已经尝试过下面的代码，但它不起作用

$this->update(
    [
             '$push'=>[
                         'panel_questions'=>[
                             'question_id'=>1,
                             'category_id'=>2
                         ]
                     ]
    ]
)

用啤酒提神后：）我设法在mongodb中添加了新数组
以下是我所做的。

$question = [
                            'question_id'=>Yii::$app->request->post('question_id'),
                            'category_id'=>Yii::$app->request->post('category_id'),
                    ];
// From collection which is already saved.
$panel_questions = $panel->panel_questions;
// Pushing new question into already saved questions (merging)
array_push($panel_questions, $question);
// Assigning whole question array to data so we can load them in model.
$data['Panel'] =['panel_questions'=>$panel_questions];
if($panel->load($data) && $panel->validate()){
      if($panel = $panel->save()) {
              // do stuff
      }
}