Mongodb 如何从mongo Symfony中删除和更新原始数据类型字段

嗨，我有一个任务文档存储如下：

 {
  "AssignTo": [
    {
      "$ref": "OrganisationUser",
      "$id": ObjectId("533665fcd841f8c00b000029"),
      "$db": "workStakMaster"
    }
  ],
  "BudgetedTime": "",
  "Client": {
    "$ref": "organisationClient",
    "$id": ObjectId("53327cebd841f8dc1000002a"),
    "$db": "workStakMaster"
  },
  "Project": {
    "$ref": "organisationProject",
    "$id": ObjectId("5332c9afd841f8fc1000002b"),
    "$db": "workStakMaster"
  },
  "RepeatType": "onetime",
  "TaskStatus": "NotStarted",
  "TimeSpentTillDate": "",
  "createdAt": ISODate("2014-04-03T10:57:31.0Z"),
  "description": "hi                                                ",
  "isActive": true,
  "isChargable": "No",
  "name": "A Task",
  "reminder": {
  "Daily": {
      "Time": ""
    }
  },
  "updatedAt": ISODate("2014-04-03T10:57:31.0Z")
}

我想更新“AssignTo”（将许多用户存储为关系）字段，如果可以，请让我知道确切的方法

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Thank Advance

是否映射到您的实体？我不知道你在问什么。我自己找到了解决方案。谢谢，我正在使用MongoDB