php - masalah kemas kini di bawah data mongo

Question

数据结构如下
array:1 [▼
  "59423208bff372441400002c" => array:30 [▼
    "_id" => MongoId {#687 ▶}
    "id" => 8850
    "author_id" => 83
    "category_id" => "10"
    "title" => "更多好看的看看 v 卡口就好吧"
    "view_type" => 1
    "post_type" => 1
    "body" => ""
    "tag" => ""
    "excerpt" => ""
    "lat" => 39.9457107
    "lng" => 116.3677488
    "sp" => array:2 [▶]
    "geo_encode" => "wx4g0pbkth4tbuu5ujz0g"
    "is_original" => 0
    "thumbnail" => []
    "platform" => 1
    "status" => 1
    "province" => "北京市"
    "city" => ""
    "district" => "朝阳区"
    "address" => "西直门宾馆"
    "featured" => 0
    "easemob_chatroom_id" => "18903238508541"
    "topic_length" => 24
    "ended_at" => "2017-06-15 15:36:55"
    "deleted_at" => "2017-06-15 15:36:55"
    "created_at" => "2017-06-14 15:34:40"
    "updated_at" => "2017-06-14 15:36:55"
    "comment" => array:2 [▼
      0 => array:12 [▼
        "id" => 64
        "easemob_chatroom_id" => "18903238508541"
        "message" => "23"
        "message_type" => "txt"
        "message_ext" => ""
        "uid" => 80
        "avatar" => "201705/080105491e54R7.jpg"
        "status" => 1
        "lng" => null
        "lat" => null
        "created_at" => "2017-06-12 11:04:27"
        "updated_at" => "2017-06-15 15:07:34"
      ]
      1 => array:12 [▼
        "id" => 61
        "easemob_chatroom_id" => "18903238508541"
        "message" => "4"
        "message_type" => "txt"
        "message_ext" => ""
        "uid" => 80
        "avatar" => "201705/080105491e54R7.jpg"
        "status" => 1
        "lng" => null
        "lat" => null
        "created_at" => "2017-06-12 11:04:27"
        "updated_at" => "2017-06-15 15:07:49"
      ]
    ]
  ]
]

Soalan:

1. Saya menggunakan $push untuk menolak ulasan[0] ke dalam data dalam mongo

2. Atas sebab tertentu, saya tidak mahu nilai tertentu dalam ulasan Operasi manakah yang harus saya gunakan untuk memadam sebarang elemen tatasusunan (elemen tatasusunan dalam soalan ini juga tatasusunan)

.

3. Arahan kemas kini data Mongodb Saya mencuba beberapa kaedah, tetapi ia tidak berkesan.

Answer 1

findOneAndUpdate()
操作符为$pull