return json from deeply nested activerecord object

Question

I've got some fairly deep nesting going on in my models where I have

-user
   -user_event
        -event
              -location
              -categories
              -attendees

I'm trying to return a json object which has all the nested elements returned. I can get to

user = User.find(current_user.id).user_event #or ,:includes => :user_event
render :json => user

but I don't see how I can display the entire hash in one go.

Azolo · Accepted Answer · 2012-02-27 20:40:12Z

5

try this

render :json => user.as_json(
                  :include => { :user_events => {
                    :include => { :events => {
                      :include => [:location, :categories, :attendees]
                    } }
                  } }
                )

Documentation for Serializers::JSON::as_json

edited Feb 27, 2012 at 20:40

answered Feb 27, 2012 at 17:41

Azolo

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1 Comment

pedalpete Over a year ago

I think this is really close Azolo, unfortunately now I'm getting the error undefined method macro' for nil:NilClass` which I assume is because i don't always have a category, or location or attendees in each event. Any way around that? I don't see it in the doc you referred to.

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