带有茧宝石的邪恶宝石并设计用户模型

Question

所以我有一个使用devise 生成的User 模型，并且我正在使用Wicked gem 为我提供从用户获取更多数据并将其存储在用户模型中的多格式选项。

一切正常，但我知道我正在尝试添加另一个用户拥有多个学位的模型。我正在使用茧宝石允许我添加额外的degrees。我可以进入多表单页面并输入学位信息，甚至可以向用户添加更多学位，但是当我提交表单时出现错误；

param is missing or the value is empty: user

如果我可以查看用户和输入的其他字段，但其他所有内容实际上都已保存，但不是度数。

用户模型：

has_many :degrees
accepts_nested_attributes_for :degrees, reject_if: :all_blank, allow_destroy: true

度数模型：

belongs_to :user

user_steps_controller（这是邪恶的 gem 控制器）：

class UserStepsController < ApplicationController

  include Wicked::Wizard
  steps :personal, :avatar_and_about_yourself, :social, :education

  def show
    @user = current_user
    render_wizard
  end

  def update
    @user = current_user
    @user.update_attributes(user_params)
    render_wizard @user
  end

  private

  def user_params
    params.require(:user).permit(:name, :middlename, :lastname, :avatar, :aboutMe, :twitterlink, :githublink, :stackoverflowlink, :mediumlink, :dribblerlink, degrees_attributes: [:id, :degreeName, :university, :level, :done, :_destroy])
  end

end

注册控制器（用于设计）：

class Users::RegistrationsController < Devise::RegistrationsController
# before_filter :configure_sign_up_params, only: [:create]
# before_filter :configure_account_update_params, only: [:update]

  # GET /resource/sign_up
   def new
     super
   end

  # POST /resource
   def create
     super
   end

  # PUT /resource
   def update
     super
   end

   protected

  # The path used after sign up.
   def after_sign_up_path_for(resource)
     user_steps_path
   end

  # The path used after sign up for inactive accounts.
   def after_inactive_sign_up_path_for(resource)
     user_steps_path
   end

   def sign_up_params
     params.require(:user).permit(:email, :password, :password_confirmation, :name, :middlename, :lastname, :avatar, :aboutMe, :twitterlink, :githublink, :stackoverflowlink, :mediumlink, :dribblerlink, degrees_attributes: [:id, :degreeName, :university, :level, :done, :_destroy])
   end
end

我在 user_steps_controller 中遇到错误：

ActionController::ParameterMissing in UserStepsController#update
param is missing or the value is empty: user

并且错误在这一行之内：

 def user_params
    params.require(:user).permit(:name, :middlename, :lastname, :avatar, :aboutMe, :twitterlink, :githublink, :stackoverflowlink, :mediumlink, :dribblerlink, degrees_attributes: [:id, :degreeName, :university, :level, :done, :_destroy])
  end

另外，我将如何查看输入的字段，例如，如果我想查看用户名：

<%= @user.name %>

但是我将如何显示每个学位？它只是一个循环吗？

<% @users.degree.each do |degree| %>

终端日志：

Started PATCH "/user_steps/education" for ::1 at 2016-02-09 11:23:29 +0000
Processing by UserStepsController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"EXN7ts6xPVK8vkC7q6UcNleJJWLUtKmOw41T0qsDqXCrPJ0vIHrB/6xIfpp/o+cXKR47F+6LxUY5LjXlCobKZQ==", "commit"=>"Update User", "id"=>"education"}
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ?  ORDER BY "users"."id" ASC LIMIT 1  [["id", 16]]
Completed 400 Bad Request in 2ms (ActiveRecord: 0.2ms)

ActionController::ParameterMissing (param is missing or the value is empty: user):
  app/controllers/user_steps_controller.rb:20:in `user_params'
  app/controllers/user_steps_controller.rb:13:in `update'

Answer 1

评论太长了，期待更新。

---

您遇到的问题是您提交的表单不包含任何user 参数：

Parameters: {"utf8"=>"✓", "authenticity_token"=>"EXN7ts6xPVK8vkC7q6UcNleJJWLUtKmOw41T0qsDqXCrPJ0vIHrB/6xIfpp/o+cXKR47F+6LxUY5LjXlCobKZQ==", "commit"=>"Update User", "id"=>"education"}

这可能是Wicked，但从您对RegistrationsController 的虚假使用来看，我想这可能与格式化等有关：

--

如果您要更新您的current_user，您不应该调用您的registrations 控制器。那是为了注册——你应该使用你的users控制器：

#config/routes.rb
resource :user_steps, path: "user", only: [:show, :update] #-> url.com/user (singular resource)

#app/controllers/user_steps_controller.rb
class UserStepsController < ApplicationController
  def show
  end

  def update
    @user = current_user.update user_params
    render_wizard @user
  end

  private

  def user_params
    params.require(:user).permit(:name, :middlename, :lastname, :avatar, :aboutMe, :twitterlink, :githublink, :stackoverflowlink, :mediumlink, :dribblerlink, degrees_attributes: [:id, :degreeName, :university, :level, :done, :_destroy])
  end
end

这只是控制器；您需要查看form 是如何被渲染和传递的。

如果您使用上述代码发送数据，您需要提取您的form HTML 并显示Wicked 是如何使用它的。

您需要查看 app/views/users/show.html.erb 才能显示表单，不是 /app/views/registrations