Question

我正在尝试查找已存在的电话号码，如果存在，则向我提供他们的电话号码以及不存在的电话号码。输入我只收到电话号码数组，我需要检查数据库，以确定哪一个存在，哪些不是在这篇文章的底部显示。

用户数据

{
    "_id" : "mJPqhyyGoeyfa3p2w",
    "createdAt" : ISODate("2015-11-30T22:33:27.649Z"),
    "phone" : {
        "number" : "123456789",
        "verified" : true
    }
},
{
    "_id" : "dsfsyGoeyfa3p2w",
    "createdAt" : ISODate("2015-11-30T22:33:27.649Z"),
    "phone" : {
        "number" : "+14155553695",
        "verified" : true
    }
}

考虑到输入[ "123456789", "+14155553695", 10, 20]

，到目前为止尝试了以下查询

db.users.aggregate([
{ 
    '$match': { "phone.number" : { '$in' : [ "123456789", "+14155553695", 10, 20]}}
}
,{ 
    '$project' : {"phone" : "$phone.number"},
}
,{ 
    '$group' : {
    "_id" : null, 
    'phones': {'$push' : '$phone'}
    }
}
])

尝试首先实现

{  
   "result":[  
      {  
         "_id":null,
         "phones":[  
            "+14155553695",
            "123456789"
         ],
         phoneFoundDetails:[  
            {  
               "_id":"xsLSt8cNaggcirxGu",
               "phone":"+14155553695"
            },
            {  
               "_id":"mJPqhyyGoeyfa3p2w",
               "phone":"123456789"
            }
         ],
         "ok":1.0000000000000000
      }
   ]
}

最终实现这样的目标

{  
   "result":[  
      {  
         "_id":null,
         "notFound":[  
            "10",
            "20"
         ],
         phoneFoundDetails:[  
            {  
               "_id":"xsLSt8cNaggcirxGu",
               "phone":"+14155553695"
            },
            {  
               "_id":"mJPqhyyGoeyfa3p2w",
               "phone":"123456789"
            }
         ],
         "ok":1.0000000000000000
      }
   ]
}

Answer 1

你可以这样做以获得你想要的结果：

db.phones.aggregate([
  {"$match": { "phone.number" : { "$in" : [ "123456789", "+14155553695", 10, 20]}}},
  {'$group' : {
    "_id" : null,
    "phones": { "$push" : "$phone.number"},
    "phoneFoundDetails": {"$push" : {"_id":"$_id" , "phone" : "$phone.number"}}}
  }
])

根据您的样本数据，它将返回：

{
    "_id" : null,
    "phones" : [
        "123456789",
        "+14155553695"
    ],
    "phoneFoundDetails" : [
        {
            "_id" : "mJPqhyyGoeyfa3p2w",
            "phone" : "123456789"
        },
        {
            "_id" : "dsfsyGoeyfa3p2w",
            "phone" : "+14155553695"
        }
    ]
}

尝试与组合作，但需要获取以前的管道数据

1 个答案: