Question

这是我的MongoDB Collection文档。

{
  "_id":"5b6361e2b17cf5286c7c3e84",
  "user":"ishwar",
  "content":"this is the first post",
  "likes":[
    {
      "user":"john"
    }
  ],
  "comments":[
    {
      "user":"bill",
      "content":"congrats on first post"
    },
    {
      "user":"mark",
      "content":"great job"
    }
  ]
}

我正在尝试从评论的第一个对象更新内容。即我想按帐单将注释更改为“嗯”。

我正在将MongoDB Driver与php7.2配合使用。我已经编写了自己的函数。

我的代码

$mongo = new MongoDB\Driver\Manager("mongodb://localhost:27017");

function mongoId($id = "") {return $id == "" ? new MongoDB\BSON\ObjectId : new MongoDB\BSON\ObjectId($id);}

function mongoWrite($method, $records, $dbCollection, $filter = [], $options = ['upsert' => false]) {
  $bulk = new MongoDB\Driver\BulkWrite;
  if ($method == "insert") {
    foreach ($records as $record) {
      $bulk->insert($record);
    }
  } elseif ($method == "update") {
    foreach ($records as $record) {
      $bulk->update($filter, ['$set'=> $record], $options);
    }
  }
  return $GLOBALS['mongo']->executeBulkWrite($dbCollection, $bulk);
}


$array = [];
$array['comments'][0]['content'] = "Hmmm";
var_dump(mongoWrite("update", [$array], "allPosts.temp", ["user" => 'ishwar']));

结果是

{
  "_id":"5b6361e2b17cf5286c7c3e84",
  "user":"ishwar",
  "content":"this is the first post",
  "likes":[
    {
      "user":"john"
    }
  ],
  "comments":[
    {
      "user":"bill",
      "content":"congrats on first post"
    },
    {
      "user":"mark",
      "content":"great job"
    }
  ],
  "comments":[
    {
      "content":"Hmmm"
    }
  ]
}

将插入新字段，而不是更新旧字段。我正在从MySQL转移到MongoDB。我尝试在BulkWrite选项中设置['upsert' => false]，但没有任何反应。

感谢您的宝贵时间。

如何使用php7.2和MongoDB驱动程序更新MongoDB嵌套对象中存在的字段的值？

0 个答案: