隐藏字段标签值

Question

从views/plans/new.html.erb我得到的plan_id的数据类型和价格PARAMS下列要求：

<%= link_to "Sign up", new_store_registration_path(:plan_id => plan.id, :price => plan.price) %> 

然后应用重定向到注册页面，并与方法def after_inactive_sign_up_path_for(resource)和def after_sign_up_path_for(resource)我把以前的PARAMS并合并电子邮件PARAM：

registrations_controller.rb

class Stores::RegistrationsController < Devise::RegistrationsController 
    before_action :configure_permitted_parameters, if: :devise_controller? 

    def new 
    build_resource({}) 
    resource.build_account 
    respond_with self.resource 
    session[:registration_params] = request.query_parameters 
    end 


    def create 
    build_resource(sign_up_params) 
    resource.save 
    yield resource if block_given? 
    if resource.persisted? 
     if resource.active_for_authentication? 
     flash[:notice] = 'Successfully signed up' 
     respond_with resource, location: after_sign_up_path_for(resource) 
     else 
     flash[:notice] = "Signed up but #{resource.inactive_message}" 
    expire_data_after_sign_in! 
    respond_with resource, location: after_inactive_sign_up_path_for(resource) 
     end 
    else 
     clean_up_passwords resource 
     set_minimum_password_length 
     respond_with resource 
    end 
    end 


    def edit 
    super 
    end 


    def update 
    super 
    end 


    def destroy 
    super 
    end 

    def cancel 
    super 
    end 

    protected 

    def configure_permitted_parameters 
    devise_parameter_sanitizer.permit(:sign_up) { |u| 
     u.permit(:email, :password, :password_confirmation, :remember_me, 
      :account_attributes => [:first_name, :last_name, :buisness_name, 
            :buisness_description, :web_site, :phone_number, 
            :street, :city, :state, :zip_code, :country]) 
    } 
    end 


    def after_sign_up_path_for(resource) 
    new_transaction_path(resource, session[:registration_params].merge(ema‌​il: resource.email)) 
    end 

    def after_inactive_sign_up_path_for(resource) 
    new_transaction_path(resource, session[:registration_params].merge(ema‌​il: resource.email)) 
    end 
end 

提交申请之后，应用程序红色向具有plan_id，price和email参数的views/transcation/new.html.erb发送。

Parameters: {"ema‌​il"=>"[email protected]", "plan_id"=>"bs96", "price"=>"150.0"} 

和URL显示：

http://localhost:3000/transactions/new.1?ema%E2%80%8C%E2%80%8Bil=example%40gmail.com&plan_id=bs96&price=150.0 

内部的意见/ transcation/new.html.erb存在UI的布伦特里下降，并与三个隐藏字段一起脚本：

<div class="form-container radius-box glassy-bg small-10 small-centered medium-8 large-6 columns"> 
    <%= form_tag transactions_path do%> 
     <div id="dropin"></div> 
     <%= hidden_field_tag(:email, params["email"]) %> 
     <%= hidden_field_tag(:plan_id, params["plan_id"]) %> 
     <%= hidden_field_tag(:amount, params["price"]) %> 
     <%=submit_tag "Pay #{params["price"]}$", class: "button mt1" %> 
    <%end%> 
</div> 

<script> 
    braintree.setup("<%[email protected]_token%>", 'dropin', { 
     container: 'dropin' 
    }); 
</script> 

在这一点上，我试图将电子邮件PARAM保持到交易与
<%= hidden_field_tag(:email, params["email"]) %>

但如果我点击提交我没有收到一封电子邮件，你可以看到如下内容：

Parameters: {"utf8"=>"✓", "authenticity_token"=>"KeS2xK7NIJZwFQvW2kJKupcpURnQweq+yoRgk9AJ1aaOgFIIym4RKadI4jc6vYynMo4vKR4eLmdIynfBG+EusQ==", "email"=>"", "plan_id"=>"bs96", "amount"=>"150.0", "payment_method_nonce"=>"0c22f2fa-e212-0ad3-753b-0d183d02522b"} 

如果我考察的意见/ transcation/new.html.erb内PARAMS这个<%= params.inspect %>它打印出这个：<ActionController::Parameters {"ema‌​il"=>"[email protected]", "plan_id"=>"bs96", "price"=>"150.0", "controller"=>"transactions", "action"=>"new"} permitted: false>

这<%= params[:email].inspect %>回报nil

任何想法，为什么我不能得到电子邮件PARAM？

Answer 1

您正在将params合并到session [：registration_params]中，并试图将它们提取到查询字符串参数中。您可以从事务控制器内的会话中获取这些参数，并在成功保存后删除它们。