marcel's rest/crud conventions

gistfile1.rbx

# Marcel Molina's REST/CRUD conventions
# http://project.ioni.st/post/2283#snippet_2283

class ApplicationController < ActionController::Base  
  def self.set_resource(resource, &custom_setter)
    filter_name = :"set_#{resource}"  
    before_filter filter_name, :only => [:show, :edit, :update, :destroy]  

    if custom_setter  
      define_method(filter_name) do  
        custom_setter.call(resource)  
      end  
    else  
      define_method(filter_name) do  
        instance_variable_set("@#{resource}",  resource.to_s.classify.find(params[:id])  )
      end  
    end  
  end  

  def self.default_formats_for(data)  
    respond_to do |format|  
      format.html  
      format.xml { render :xml => data }
    end  
  end 
end 

class AccountsController < ApplicationController  
  set_resource :account  

  def index
    @accounts = Account.all  
    default_formats_for @accounts
  end  

  def show
    default_formats_for @account
  end 
end