Really hacky way of assigning a "belongs_to" event with an attribute on the event that is allowed to change on create or update of a comment :/

comments_controller.rb

  def create
    @event.update_attribute(:status_id, params[:comment][:event_attributes][:status_id])
    params[:comment].delete(:event_attributes) # = nil # = {:id => params[:event_id]}
    @comment = @event.comments.new(params[:comment])
    if @comment.save
      redirect_to admin_event_comments_path(@event), :flash => { :info => "Comment created" }
    else
      render :action => :edit
    end
  end