如果状态为true,Elasticsearch bool查询按日期排序

问题描述

我在Elasticsearch索引中有一个如下所示的JSON文件。如果广告没有过期并且状态为true,我需要对数据进行排序,然后将它们排序为desc。我该如何实现?

我尝试使用end_date排序,但是没有用。另外,我需要显示所有end_date过期的过期数据。

 advertisement = [
   {
        "id": 1,"name": "test","status": True,"start_date": "2020-08-09","end_date": "2020-09-09",},{
        "id": 2,"name": "test2","status": False,"end_date": "2020-08-09",}]

这是我的弹性搜索方法

def elastic_search(category=None):
    client = Elasticsearch(host="localhost",port=9200)
    query_all = {
        'size': 10000,'query': {
            "bool": {
                "filter": [
                    {
                        "match": {
                            "name": "test"
                        }
                    }]
               },"sort": [
        {
            "end_date": {
                "type": "date","order": 'desc'
            }
        }
    ]
    }
    resp = client.search(
        index="my-index",body=query_all
        )
    return resp

这是我的回复

http:// localhost:9200 / my-index / _search

   {
   "took":96,"timed_out":false,"_shards":{
      "total":5,"successful":5,"skipped":0,"Failed":0
   },"hits":{
      "total":36,"max_score":1.0,"hits":[
         {
            "_index":"my-index","_type":"doc","_id":"52","_score":1.0,"_source":{
               "id": 1,}
         },{
            "_index":"my-index","_id":"60","name": "English test","_id":"40","name": "Designw test","status": false,"_id":"41","name": "Designw New","_id":"59","_id":"62",}
         }
      ]
   }
}

这是我的映射http:// localhost:9200 / my-index / _mapping响应。

"my-index":{
      "mappings":{
         "_doc":{
            "properties":{
               "address":{
                  "properties":{
                     "name":{
                        "type":"text","fields":{
                           "keyword":{
                              "type":"keyword","ignore_above":256
                           }
                        }
                     },"start_date":{
                        "type":"text","end_date":{
                        "type":"text","id":{
                        "type":"long"
                     },"status":{
                        "type":"text","ignore_above":256
                           }
                        }
                     }
                  }
               }
            }
         }
      }
   }
}

解决方法

关于映射的两件事:

  1. 在您的实际文档中找不到一个address字段。删除它。
  2. 您的日期应该使用date数据类型正确映射。

正确的映射如下:

{
  "properties":{
    "end_date":{
      "type":"date","format":"yyyy-MM-dd"
    },"start_date":{
      "type":"date",//...other properties
  }
}

一旦映射正确,此查询将查找所有具有真实状态的未过期广告,并按运行时间最长的顺序进行排序:

{
  "query": {
    "bool": {
      "must": [
        {
          "range": {
            "end_date": {
              "gt": "now"
            }
          }
        },{
          "term": {
            "status": {
              "value": true
            }
          }
        }
      ]
    }
  },"sort": [
    {
      "end_date": {
        "order": "desc"
      }
    }
  ]
}

或者,如果您要查找过期的,请将gt更改为lt,代表less-than