Ruby on Rails - Render JSON for multiple models?

One way you could do this is to create a hash with the objects you want to render, and then pass that to the render method. Like so.

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I am trying to render results from more than one model in JSON. The following code in my controller only renders the first result set: def calculate_quote @moulding = Moulding. Find(params:id) @material_costs = MaterialCost.

All respond_to do |format| format. Json { render :json => @moulding } format. Json { render :json => @material_costs } end end Any help would be much appreciated, thanks.

Ruby-on-rails json ruby-on-rails-3 render link|improve this question asked Nov 30 '10 at 21:39freshest603413 85% accept rate.

One way you could do this is to create a hash with the objects you want to render, and then pass that to the render method. Like so: respond_to do |format| format. Json { render :json => {:moulding => @moulding, :material_costs => @material_costs }} end If the models aren't associated through active record, that's probably your best solution.

If an association does exist, you can pass an :include argument to the render call, like so: respond_to do |format| format. Json { render :json => @moulding. To_json(:include => :material_costs)} end Note that you wouldn't have to retrieve the @material_costs variable in the section above if you take this approach, Rails will automatically load it from the @moulding variable.

Used your suggestion as well after finding this post. My models do have an association but I went with your first example as I feel it reads better. Thank you!

– Tass Mar 28 at 18:40.

A controller can only return one response. If you want to send all these objects back, you have to put them in one JSON object. How about: def calculate_quote @moulding = Moulding.

Find(params:id) @material_costs = MaterialCost. All response = { :moulding => @moulding, :material_costs => @material_costs } respond_to do |format| format. Json { render :json => response } end end.

I did something like respond_to do |format| format. Html # show.html. Erb format.

Json { render :json => {:cancer_type => @cancer_type, :cancer_symptoms => @cancer_symptoms }} here is the result {"cancer_type":{"created_at":"2011-12-31T06:06:30Z","desc":"dfgeg","id":2,"location":"ddd","name":"edddd","sex":"ddd","updated_at":"2011-12-31T06:06:30Z"},"cancer_symptoms":} So it is working Thank you guys.

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