How to send JSON data using rails

Question

Hi I am trying to create a custom controller that return a method as json.

Here my controller

respond_to :json
  def rates
    @event = Event.find(params[:id])
    respond_with @event.avg_rating
  end

Now I have my model with the following method

# returns the average rating for that event
def avg_rating
  @avg = self.ratings.average(:stars)     
  @avg ? @avg : 0
end

However when i get the respond I get this:

3.75

What I would like is a standard json respond either {"event": "3.75"}

But I am not sure what to use to simply transform it to make an answer like that

rdmcfee · Accepted Answer · 2013-09-13 00:34:47Z

3

You will need an actual object to be rendered to json. A hash is usually easiest. And you will want to use render instead of respond_with

    render json: {:event => @event.avg_rating}

answered Sep 13, 2013 at 0:34

rdmcfee

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1 Comment

Thank you, simple and what i am looking for, will accept answer once allowed