bulk api

gistfile1.rb

# Bulk API design
#
# resources :posts
class PostsController < ApplicationController
  
  before_filter :separate_bulk_ids
  
  # GET /posts/1
  #  params[:id]   => 1
  #  params[:ids]  => [ 1 ]
  #
  # GET /posts/1,2,3,4
  #  params[:id]   => 1
  #  params[:ids]  => [ 1, 2, 3, 4 ]
  # 
  def show
    # Demonstrates how IDs are separated.  Assigned to instance
    # variables for testing purposes.
    @id = params[:id]
    @ids = params[:ids]
    head :ok
  end  
  
  # PUT /posts/1,2,3,4
  def update
    # Invalid id? No problem...
    @posts = Post.all(:conditions => { :id => params[:ids] })
    
    # optional: enforce policy on each post
    @posts.each do |post|
      post.update_attributes(params[:posts][post.id.to_s]) 
    end
    
    head :ok
  end
     
  protected
  
    def separate_bulk_ids
      if params[:id].present?
        params[:ids] = params[:id].split(',')
        params[:id] = params[:ids].first
      end
    end
  
end

I'm just noodling around and don't want to clutter the original gist with my comments quite yet...

Is it really necessary to have two separate actions?