respond-to

I have a form, that I send with using AJAX. The form is in the FirstsController . I need the form send to SecondsController . The form is sent and data saved. Then I wanna change the form by a text, I try to do by this way: def create ...saving... respond_to do |format| format.js { render :update do |page|; page << "$('#id_element').html('hellllloooooo');" end } format.html {} end end And I ma getting this error: ActionView::MissingTemplate (Missing template seconds/update, application/update with {:handlers=>[:erb, :builder, :coffee], :formats=>[:js, :html], :locale=>[:en, :en]}.): How should

respond_to do |format| if @user.save format.js { render :nothing => true, :status => :ok, :location => @user } else format.js { render :json => @user.errors, :status => :unprocessable_entity } end end All options I've tried (like putting respond_to :js at the top of controller, etc) don't quite work the way as in this. Rails 3 Format: Use respond_to :json and respond_with (@user) respond_to :json # You can also add , :html, :xml etc. def create @user= User.new(params[:user]) #---For html flash #if @user.save # flash[:notice] = "Successfully created user." #end respond_with(@user) end # Also,

This is a question "why does it work this way", not "how do I make this work". My app is calling a third party REST API that returns JSON, and returning the result as part of my own JSON API. I was using the Rails 3 respond_to and respond_with methods; in the case of GET requests, this works as I expect, just passing through the JSON. In the case of POST , it does more, including making a URL from the object returned to pass in a :location option. But since my object is just JSON (not ActiveRecord), I get an error. For example... # POST /api/products.json with params id=:id def create query

If I have a block of code like this: def show @post = Post.find(params[:id]) respond_to do |format| format.html # show.html.erb format.xml { render :xml => @post } end end How do I add something like format.json Any tips, pointers, ideas gladly welcomed... It's just like the other formats except that you use render :json instead. respond_to do |format| format.html # show.html.erb format.xml { render :xml => @post } format.json { render :json => @post } end VP. or you can handle it as javascript respond_to do |format| format.js { render :json { :only => :name }.to_json } end then you just

I know in Ruby that I can use respond_to? to check if an object has a certain method. But, given the class, how can I check if the instance has a certain method? i.e, something like Foo.new.respond_to?(:bar) But I feel like there's gotta be a better way than instantiating a new instance. horseyguy I don't know why everyone is suggesting you should be using instance_methods and include? when method_defined? does the job. class Test def hello; end end Test.method_defined? :hello #=> true NOTE In case you are coming to Ruby from another OO language OR you think that method_defined means ONLY

In my rails app I have a ajax request to the server, to store some data. This used to work without any problem, but now I get an error: ActionController::UnknownFormat (ActionController::UnknownFormat): app/controllers/reservations_controller.rb:45:in `create' As following is the controller and my javascript file where I declare the datatype do be JSON class ReservationController < ApplicationController respond_to :html, :json def create ... respond_to do |format| if @reservation.save format.html do redirect_to '/' end format.json { render json: @reservation.to_json } else render 'new' end end