foodsoft/app/controllers/order_comments_controller.rb

class OrderCommentsController < ApplicationController
  def new
    @order = Order.find(params[:order_id])
    @order_comment = @order.comments.build(user: current_user)
  end

  def create
    @order_comment = OrderComment.new(params[:order_comment])
    if @order_comment.save
      render layout: false
    else
      render action: :new, layout: false
    end
  end
end