Javascript MongoDB通过动态查询第n个元素来获取数据集合

我有一个动态的票证状态堆栈。其中，每个票证可以处于状态“正在处理中”，并且具有不同的“this.statusStack.currentStatus”值

下一个代码（不起作用）试图解释我要做什么

var tickets = Tickets.find({
  driverAsigned: Meteor.userId(),
  'statusStack.stack.(this.statusStack.currentStatus).name': "In Process"
});

*****新数据******

我所说的“this.statusStack.currentStatus”是一个内部文档值，不是代码的变量

这是一张票的结构

{
......
"statusStack" : {
    "stack" : [
        {
            "sortable" : false,
            "removable" : false,
            "order" : 0,
            "name" : "Draft",
            "customName" : "Draft",
            "description" : "When the ticket has been created",
            "color" : "#4d4d4d"
        },
        {
            "sortable" : false,
            "removable" : false,
            "order" : 1,
            "name" : "New",
            "customName" : "New",
            "description" : "When the ticket info has been updated",
            "color" : "#f4f93e"
        },
        {
            "sortable" : true,
            "removable" : false,
            "order" : 2,
            "name" : "Assigned",
            "customName" : "Assigned",
            "description" : "When the ticket info has been asigned to a driver",
            "color" : "#3e89f9"
        },
        {
            "sortable" : true,
            "removable" : false,
            "order" : 3,
            "name" : "In Process",
            "customName" : "In Process",
            "description" : "When the ticket has been created",
            "color" : "#f0883c"
        },
        {
            "sortable" : true,
            "removable" : true,
            "order" : 4,
            "name" : "Frodo",
            "customName" : "Blank",
            "description" : "New Blank Status",
            "color" : "#4d4d4d"
        },
        {
            "sortable" : true,
            "removable" : false,
            "order" : 5,
            "name" : "Resolved",
            "customName" : "Resolved",
            "description" : "When the Driver has resolved the Ticket",
            "color" : "#42f93e"
        },
        {
            "sortable" : false,
            "removable" : false,
            "order" : 6,
            "name" : "Closed",
            "customName" : "Closed",
            "description" : "When the Admin has been closed the Ticket",
            "color" : "#217b1f"
        }
    ],
    "currentStatus" : 5
},
......
}

Sudo代码：

首先获取数组元素位置

pos=statusStack.currentStatus

然后，您可以使用pos（int）变量来构建查询文档

var query=tojson（“{”statusStack.stack.'+pos'+'.name:“进程中”}”）

---

在“查找”中使用该查询文档。

您能否提供票证收集的示例文档以及您需要的更多说明。我试图避免查询所有我不需要的票证。如果我按照你说的做，我将检索所有票证，然后迭代只获取我想要的票证

var tickets=tickets.find（{driverAsigned:Meteor.userId（）}）
tickets.forEach（函数（ticket）{if（ticket.statusStack.stack[ticket.statusStack.currentStatus].name==“正在处理中”）{//Do my want}）我想有点同意…查看聚合框架，看看您是否找到了使用它的方法。聚合框架提供了许多我们可以使用的额外内容。