Question

我找不到关于如何正确定义索引函数的文档，以便我可以对我需要的信息进行全文搜索。

我已经使用Alchemy API将“实体”json添加到我的文档中。例如，我有一份文件如下：

"_id": "redacted",
"_rev": "redacted",
"session": "20152016",
"entities": [


    {
      "relevance": "0.797773",
      "count": "3",
      "type": "Organization",
      "text": "California Constitution"
    },
    {
      "relevance": "0.690092",
      "count": "1",
      "type": "Organization",
      "text": "Governors Highway Safety Association"
    }
]

我无法找到任何代码片段，展示如何构建一个查看嵌套json的搜索索引函数。

我对索引整个对象的准备似乎是不正确的。这是完整的设计文档：

    {
  "_id": "_design/entities",
  "_rev": "redacted",
  "views": {},
  "language": "javascript",
  "indexes": {
    "entities": {
      "analyzer": "standard",
      "index": "function (doc) {\n  if (doc.entities.relevance > 0.5){\n      index(\"default\", doc.entities.text, {\"store\":\"yes\"});\n  }\n\n}"
    }
  }
}

搜索索引格式化得更清楚

function (doc) {
  if (doc.entities.relevance > 0.5){
      index("default", doc.entities.text, {"store":"yes"});
  }

}

如下所示添加for循环非常有意义。但是，我仍然无法返回任何结果。我的疑问是 “https://user.cloudant.com/calbills/_design/entities/_search/entities?q=Governors”

服务器响应是： { “TOTAL_ROWS”：0， “书签”： “g2o”， “行”：[]}

Answer 1

＆＃34; for..in＆＃34;风格循环似乎不起作用。但是，我确实使用更标准的for循环来获得结果。

process.exit()

干杯！

Answer 2

您需要循环doc.entities数组中的元素。

function (doc) {
  for(entity in doc.entities){
    if (parseFloat(entity.relevance) > 0.5){
      index("default", entity.text, {"store":"yes"});
    }
  }
}

Answer 3

这就是我的尝试：

function(doc){
   if(doc.entities){
   for( var p in doc.entities ){
         if (doc.entities[p].relevance > 0.5)
          { 
             index("entitiestext", doc.entities[p].text, {"store":"yes"});
           }      
        }
     }
}

使用的查询字符串：“q = entitiestext：California Constitution＆amp; include_docs = true” 结果：

{
"total_rows": 1,
"bookmark": "xxxx",
"rows": [
    {
        "id": "redacted",
        "order": [
            0.03693288564682007,
            1
        ],
        "fields": {
            "entitiestext": [
                "Governors Highway Safety Association",
                "California Constitution"
            ]
        },
        "doc": {
            "_id": "redacted",
            "_rev": "4-7f6e6db246abcf2f884dc0b91451272a",
            "session": "20152016",
            "entities": [
                {
                    "relevance": "0.797773",
                    "count": "3",
                    "type": "Organization",
                    "text": "California Constitution"
                },
                {
                    "relevance": "0.690092",
                    "count": "1",
                    "type": "Organization",
                    "text": "Governors Highway Safety Association"
                }
            ]
        }
    }
]

}

使用的查询字符串：q = entitiestext：加州宪法

结果：

 {
"total_rows": 1,
"bookmark": "xxxx",
"rows": [
    {
        "id": "redacted",
        "order": [
            0.03693288564682007,
            1
        ],
        "fields": {
            "entitiestext": [
                "Governors Highway Safety Association",
                "California Constitution"
            ]
        }
    }
]

}

Cloudant搜索查询索引功能

3 个答案: