Empty { } for single object render to show

[joel]

For this example

class PostsController < ApplicationController
  def index
    @posts = Post.all
    respond_to do |format|
      format.json
    end
  end
  def show
    @post = Post.find(params[:id])
    respond_to do |format|
      format.json
    end
  end
end

With collection template index.json.rabl it's not necessary declare the collection

attributes :id, :title, :content

But in object template show.json.rabl the declaration it's necessary.

object @post
attributes :id, :title, :content

otherwise the { } it's empty

It's normal way ?

[nesquena]

Yes, you are right. The 'default' object detection is really basic, we could introspect the action and guess more at what the object would be.

Right now it only looks for an instance variable with the same name as the controller i.e 'posts'. I typically explicitly declare the object for clarity but I would be open to adding smarter defaults.

[fbernier]

+1. I might look into it eventually.

[nesquena]

Closing for now, use explicit collection declarations for the time being.