Question

I have two Ruby on Rails projects on my computer. For some reason, when I generate a scaffold in one project I get:

  # POST /users
  # POST /users.xml
  def create
    @user = User.new(params[:user])
    respond_to do |format|
      if @user.save
        format.html { redirect_to(@user, :notice => 'User was successfully created.') }
        format.xml  { render :xml => @user, :status => :created, :location => @user }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @user.errors, :status => :unprocessable_entity }
      end
    end
  end

and in the other:

  # POST /users
  # POST /users.json
  def create
    @user = User.new(params[:user])

    respond_to do |format|
      if @user.save
        format.html { redirect_to @user, notice: 'User was successfully created.' }
        format.json { render json: @user, status: :created, location: @user }
      else
        format.html { render action: "new" }
        format.json { render json: @user.errors, status: :unprocessable_entity }
      end
    end
  end

The weird thing is that I am generating both in the same computer.
When I do ruby -v I get 1.9.2.

How can I configure the scaffold to generate one or the other? Right now I am interested in .xml, but maybe I’ll switch both to json someday. Anyways, I know I can do this manually, but it is a lot of work if you have several tables (or even with one table). How can I tell rails I want one format in particular by default?

Answer 1

Most likely you’re using different version of rails in the two applications.. Rails 3.0 scaffold generates the xml code and Rails 3.1 scaffold generates the json code.. Check your gem list for multiple version of rails installed..