Can't fetching records from nested JSON objects in Sencha Touch Application

Question

I'm stuck with issue for getting web-service response from JSON in Sencha Touch.

I'm getting response from server.

{
   "type": "FeatureCollection",
   "features": [
   {
       "type": "Feature",
       "id": "business_poi_en.1",
       "geometry": {
          "type": "Point",
          "coordinates": [
               28.21962354993591,
               36.452844361147314
          ]
    },
    "geometry_name": "geom",
    "properties": {
       "status": "M",
       "score": 100,
       "side": "R",
       "ref_id": 0,
       "id": null,
       "business_p": "AQUARIOUM",
    }
},
{
   "type": "Feature",
   "id": "business_poi_en.2",
   "geometry": {
      "type": "Point",
      "coordinates": [
         28.225417523605692,
         36.436470953176716
      ]
    },
    "geometry_name": "geom",
    "properties": {
       "status": "M",
       "score": 68.44,
       "match_type": "A",
       "side": "L",
       "ref_id": 0,
       "id": null,
       "business_p": "ZIGOS",
    }
},

.... So On ....

I want to fetch data for coordinates from geometry tag, so I can display it on map via these coordinates.
I also want to fetch data for business_p from properties tag as displaying title on map.

But, I can't get both of values for coordinates & business_p at same time from same response.

Any idea for getting values at same time ?
Any suggestion will be appreciated.
Please help with this issue.

Thanks in advance.

ThinkFloyd ThinkFloyd · Accepted Answer · 2013-03-22T06:32:01

Your Store's proxy's reader should have correct rootProperty which is common parent of both coordinates and business_p. For that your response should be wrapped into a top level tag like this

{
  "featureResponse": [
    {
        "type": "FeatureCollection",
        "features": []
    },
    {
        "type": "Feature",
        "features": []
    },
  ]
}

Then you can define reader like this:

reader: {
            type: 'json',
            rootProperty: 'featureResponse'
        }

once you get record from this store, you can go to data or raw children object to fetch required data.

Can't fetching records from nested JSON objects in Sencha Touch Application

1 Answers