Question

在我的控制器中，当用户发布创建新发票的请求时，我将表单数据保存到会话中。但是一旦在发票页面中，我无法导航到另一个页面，因为会话仍未清除。以下是我的代码。

def new

        @invoice = Invoice.new

        #post request from detail page to invoice along with variable from form
        if request.post?     

            @invoice.booking_date = params[:datepicker]
            @invoice.product_id = params["product-id"]
            @invoice.variants = params[:variant]

            #if user not signed in, user redirected to sign in page before    
            #continue to post invoice page with form data saved in session
            if !user_signed_in?
                session[:pending_invoice] = @invoice
                return redirect_to new_user_session_path

            end

            #following for case where user already signed in before directed to 
            #invoice page
            set_extra_params_for_new
            @invoice_params = {}
            @contact_detail_params = {}

        else

            #this is when user are from sign in page with session present. This is 
            #the code that make the issues where I cant navigate away to other 
            #pages until I cleared the session with session[:pending_invoice] = 
            #nil.
            if (session[:pending_invoice].present?) && (session[:pending_invoice].instance_of? Invoice)

                @invoice = session[:pending_invoice]
                set_extra_params_for_new

                @invoice_params = {}

                @contact_detail_params = {}

            else
                #this code for params post request that comes from payment gateway. So  
                #all the data in invoice page is intact
                @invoice.booking_date = params[:invoice][:booking_date]
                @invoice.product_id = params[:invoice][:product_id]
                @invoice.coupon_id = params[:invoice][:coupon_id]
                @invoice.coupon_amounts = params[:invoice][:coupon_amounts]
                @coupon_amounts_with_user_currency = params[:invoice][:coupon_amounts_with_user_currency]
                @invoice.variants = params[:variant]
                set_extra_params_for_new

                @invoice_params = params[:invoice]

                #session[:pending_invoice] = nil

            end
        end

        set_invoice_currency_attributes(@invoice)

        gon.invoice = @invoice
        gon.real_total_with_currency = @invoice.real_total_with_currency
        gon.real_total = @invoice.real_total


    end

现在问题是，如果我使用session清除#session[:pending_invoice] = nil，用户将无法刷新页面。它会导致错误。我该如何解决这类问题？谢谢！

Answer 1

我无法弄清楚你的脚本发生了什么，抱歉这不是简单的答案。

new控制器操作通常不处理POST请求，它处理一个get请求以呈现要填写的表单。create操作处理包含表单数据的POST。

我建议您在发布任何表格之前处理登录在我的应用程序中应用程序控制器具有该行 before_action :require_signin

和

def require_signin
    unless signed_in?
        store_location
        flash[:danger] = "You must be signed in to access this section"
        redirect_to signin_url # halts request cycle
    end
end

这是基于教程by Michael Hartl

我衷心推荐，它非常彻底地涵盖了登录和会话管理。

祝你好运

Rails会话阻止导航

1 个答案: