Retrieving specif fields from nested object returned by elasticsearch - django

Question

I am new to elasticsearch. I am trying to retrieve the selected fields from nested object returned by elasticsearch. Below is the object stored in elasticsearch index:
{
"_index": "xxx",
"_type": "user",
"_id": "2",
"_version": 1,
"exists": true,
"_source": {
"user": {
"user_auth": {
"username": "nickcoolster#gmail.com",
"first_name": "",
"last_name": "",
"is_active": false,
"_state": {
"adding": false,
"db": "default"
},
"id": 2,
"is_superuser": false,
"is_staff": false,
"last_login": "2012-07-10 21:11:53",
"password": "sha1$a6caa$cba2f821678ccddc4d70c8bf0c8e0655ab5c279b",
"email": "nickcoolster#gmail.com",
"date_joined": "2012-07-10 21:11:53"
},
"user_account": {},
"user_profile": {
"username": null,
"user_id": 2,
"following_count": 0,
"sqwag_count": 0,
"pwd_reset_key": null,
"_state": {
"adding": false,
"db": "default"
},
"personal_message": null,
"followed_by_count": 0,
"displayname": "nikhil11",
"fullname": "nikhil11",
"sqwag_image_url": null,
"id": 27,
"sqwag_cover_image_url": null
}
}
}
}
Now I want only certain fields to be returned from user.user_auth(like password,superuser etc should not be returned).
I am using django PyES and below is the code that i tried:
fields = ["user.user_auth.username","user.user_auth.first_name","user.user_auth.last_name","user.user_auth.email"]
result = con.search(query=q,indices="xxx",doc_types="user",fields=fields)
but the result that I get is only email being retrieved (i:e only last field being returned):
{
"user.user_auth.email": "nikhiltyagi.eng#gmail.com"
}
I want this abstraction for both the nested objects (i:e user_auth,user_profile)
how do I do this?

Answer 1

What about using latest django-haystack? It covers also ElasticSearch as a backend so you can get well binded ElasticSearch FTS to your project.