Form for 2 models?

Is it possible to have a form_for :model_1, :model_2 ?

Thanks

Is it possible to have a form_for :model_1, :model_2 ?

No, but you can have fields_for.

Ok, I figured out how to do it, but now I'm having soe trouble.

I want to be able to add model_2's to model_1, when model_1 already
exists

def save_model_1
    current_model_1 = Model_1.find(params[:model_1])

    if current_model_1
      @model_2 = current_model_1.model_2s.build(params[:model_2])
    else
      @model_1 = Model_1.new(params[:model_1])
      @model_2 = current_model_1.model_2s.build(params[:model_2])
    end

    if current_model_1
        render :action => 'index'
    else
      if @model_1.save
        render :action => 'index'
      else
        render :action => 'new_model_1'
      end
    end
  end

I get this error:

ArgumentError in Auth userController#save_model_1
Unknown key(s): title

In new_model_1.html.erb:
<%= text_field :model_1, :title %>

Any ideas?

Thanks!