gistfile1.txt

#my controller action
  def edit
    respond_to do |format|
      format.js {render :partial => "ajax_form", :locals => {:expense => @expense} && return}
      format.html {raise "boom"}
    end
  end


#from the log
Processing ExpensesController#edit to js (for 127.0.0.1 at 2009-09-25 18:20:50) [GET]
  Parameters: {"budget_id"=>"12", "id"=>"3"}
  SQL (0.1ms)   SET NAMES 'utf8'
  SQL (0.1ms)   SET SQL_AUTO_IS_NULL=0
  Budget Columns (1.5ms)   SHOW FIELDS FROM `budgets`
  Budget Load (0.5ms)   SELECT * FROM `budgets` WHERE (`budgets`.`id` = 12) 
  Expense Columns (1.6ms)   SHOW FIELDS FROM `expenses`
  Expense Load (0.2ms)   SELECT * FROM `expenses` WHERE (`expenses`.`id` = 3 AND (`expenses`.budget_id = 12)) 
Rendering template within layouts/expenses
Rendering expenses/edit
Completed in 35ms (View: 17, DB: 4) | 200 OK [http://localhost/budgets/12/expenses/3/edit?format=js]