Question

I have a json document like this

{
  "_id": "73a43a134b4169f04ddb734ef09785e9",
  "title": "US",
  "areas": 
[
{
      "text": "xyz"
}

{
      "text": "abc"
}
]

}

I need to search the document with areas = xyz

I have created design document like this, but not getting results. any idea ?

{
  "_id": "_design/areaapp",
  "filters": {
    "by_area": "function(doc, req) { for( var i=0, l=doc.areas.length; i<l; i++) { return doc.areas[i].text === req.query.area;  }}"
  }
}

here is my link https://hostname/databse/_changes?filter=areaapp/by_area&area=xyz

Thanks

Answer 1

将其排序

{
  "_id": "_design/areaapp",
  "filters": {
    "by_area": "function(doc, req) {  if (doc.areas) {if(doc.areas.length > 0) {for(var idx in doc.areas) {if(doc.areas[idx].text==req.query.area) {return true; }}}}}"
  }
}

Answer 2

嗯。这不是如何查询couchdb的方式.. 你需要写一个像

这样的视图

    {
      "_id": "_design/areaapp",
      "_views": {
        "by_area":{ 
          "map": "function(doc, req) { 
                   for( var i=0, l=doc.areas.length; i<l; i++) { 
                     emit (doc.areas[i].text,1)
                   }
                  }"
              }
         }
   }

这会将btree结果存储在couchdb中。

以后你可以像查询一样？/ _view / byArea键=＆＃34; XYZ＆＃34;

然后你得到文档的id作为结果.. 要么？/ _view / byArea键=＆＃34; XYZ＆＃34;＆安培; include_docs =真为了获得文档本身

Couchdb design document to search in array

2 个答案: