在Rails 5.0中使用Devise登錄/會話驗證錯誤消息

Question

這是我的第一個堆棧溢出帖子，所以如果我提出的問題不好或者留下任何可以幫助回答問題的事情，我都會提前道歉。但請讓我知道，如果有任何其他信息會有所幫助，我會馬上回應！

此外，我正在與一個名爲語義的前端CSS庫，所以我道歉你可能會在erb文件中看到任何clunkiness！

問題：我正在嘗試驗證用戶登錄過程，並且未顯示缺少電子郵件和密碼字段的錯誤。 （應用程序/視圖/設計/會話/ new.html.erb）

---

什麼奇怪：我研究了很多其他的堆棧溢出文章和其他博客和成功顯示註冊過程驗證錯誤（ 應用程序/視圖/設計/註冊/ new.html.erb）

---

我所做的：

1. 需要在用戶模型中的驗證：

`

class User < ApplicationRecord 
    devise :database_authenticatable, :registerable, 
     :recoverable, :rememberable, :trackable, :validatable 
    has_many :courses 
    has_many :completions 
    has_many :htmls, through: :completions 

    validates :first_name, presence: true 
    validates :last_name, presence: true 
    validates :email, presence: true 
    validates :password, presence: true 
    validates :country, presence: true 
    validates :gender, presence: true 
    validates :goal, presence: true, length: { in: 10..100 } 
end 

`

改性我的配置/區域設置/ en.yml文件包括以下內容：

'

en: 
    activerecord: 
    errors: 
     models: 
     user: 
      attributes: 
      first_name: 
       blank: "Your First Name is Required" 
      last_name: 
       blank: "Your Last Name is Required" 
      email: 
       blank: "Please enter an email address" 
       taken: "That email is already taken" 
       invalid: "Please enter a valid email address" 
      password: 
       blank: "Please Specify a Password" 
       too_short: "Password must be at least %{count} characters long" 
      country: 
       blank: "Please Select Your Country of Residence" 
      gender: 
       blank: "Please Select Your Gender" 
      goal: 
       blank: "Please describe a goal you would like to achieve" 
       too_long: "Your goal must be shorter than %{count} characters long" 
       too_short: "Your goal must be longer than %{count} characters long" 

'

寫我應用程序/視圖/設計/會話/ new.html.erb文件

<h1><span class="hashtag">#</span> log in</h1> 
 

 
     <%= simple_form_for(resource, as: resource_name, url: session_path(resource_name), html: { class: "ui form" }) do |f| %> 
 

 
      <div class="field"> 
 
       <%= f.input :email, autofocus: true %> 
 
      </div> 
 

 
      <div class="field"> 
 
       <%= f.input :password %> 
 
      </div> 
 

 
       <div class="registration_buttons"> 
 
       <%= link_to 'register', new_user_registration_path, { class: "ui left floated huge register button" }%> 
 
       <%= link_to "forgot password", new_password_path(resource_name), class: "ui left floated huge register button" %><br /> 
 
       <%= f.button :submit, "log in", class: "ui right floated huge login button" %> 
 
       </div> 
 

 
     <% end %>

1. 上面的設計/會話的查看頁面s/new不會顯示我在config/locales/en.yml中自定義的消息，但這裏是app/views/devise/registrations/new/html.erb這與以前的代碼片段非常相似並正確顯示消息。

 <h1><span class="hashtag">#</span> welcome to the community</h1> 
 

 
     <%= simple_form_for(resource, as: resource_name, url: user_registration_path, html: { class: 'ui registration form' }) do |f| %> 
 

 
     <div class="two fields"> 
 
      <div class="field"> 
 
      <%= f.input :first_name, autofocus: true %> 
 
      </div> 
 
      <div class="field"> 
 
      <%= f.input :last_name %> 
 
      </div> 
 
     </div> 
 

 
     <div class="two fields"> 
 
      <div class="field"> 
 
      <%= f.input :email%> 
 
      </div> 
 
      <div class="field"> 
 
      <%= f.input :password%> 
 
      </div> 
 
     </div> 
 

 
     <div class="two fields"> 
 
      <div class="field"> 
 
      <%= render "countries_dropdown" %> 
 
      <div class="error"><%= @user.errors[:country][0] %></div> 
 
      </div> 
 
      <div class="field"> 
 
      <%= render "gender_dropdown" %> 
 
       <div class="error"><%= @user.errors[:gender][0] %></div> 
 
      </div> 
 
     </div> 
 

 
     <div class="field"> 
 
      <%= f.input :goal, wrapper_html: { id: "goal_input" }, 
 
      label_html: { id: "varchar_count" }, 
 
      input_html: { id: "goal_input_field" } %> 
 
     </div> 
 

 
     <div class="registration_buttons"> 
 
      <%= f.button :submit, "register", class: "huge ui right floated register button" %> 
 
      <%= link_to "log in", new_session_path(resource), { class: "ui huge login button" } %> 
 
     </div> 
 

 
     <% end %>

我還創建了自己的註冊控制器，其從設計繼承:: RegistrationsController：

'

class RegistrationsController < Devise::RegistrationsController 
    #prepend_before_action :require_no_authentication, only: [:new, :create, :cancel] 
    #prepend_before_action :authenticate_scope!, only: [:edit, :update, :destroy] 
    #prepend_before_action :set_minimum_password_length, only: [:new, :edit] 

    # GET /resource/sign_up 
    def new 
    build_resource({}) 
    yield resource if block_given? 
    respond_with resource 
    end 

    # POST /resource 
    def create 
    build_resource(sign_up_params) 

    resource.save 
    yield resource if block_given? 
    if resource.persisted? 
     if resource.active_for_authentication? 
     set_flash_message! :notice, :signed_up 
     sign_up(resource_name, resource) 
     respond_with resource, location: after_sign_up_path_for(resource) 
     else 
     set_flash_message! :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 

    # GET /resource/edit 
    def edit 
    render :edit 
    end 

    # PUT /resource 
    # We need to use a copy of the resource because we don't want to change 
    # the current user in place. 
    def update 
    self.resource = resource_class.to_adapter.get!(send(:"current_#{resource_name}").to_key) 
    prev_unconfirmed_email = resource.unconfirmed_email if resource.respond_to?(:unconfirmed_email) 

    resource_updated = update_resource(resource, account_update_params) 
    yield resource if block_given? 
    if resource_updated 
     if is_flashing_format? 
     flash_key = update_needs_confirmation?(resource, prev_unconfirmed_email) ? 
      :update_needs_confirmation : :updated 
     set_flash_message :notice, flash_key 
     end 
     bypass_sign_in resource, scope: resource_name 
     respond_with resource, location: after_update_path_for(resource) 
    else 
     clean_up_passwords resource 
     respond_with resource 
    end 
    end 

    # DELETE /resource 
    def destroy 
    resource.destroy 
    Devise.sign_out_all_scopes ? sign_out : sign_out(resource_name) 
    set_flash_message! :notice, :destroyed 
    yield resource if block_given? 
    respond_with_navigational(resource){ redirect_to after_sign_out_path_for(resource_name) } 
    end 

    # GET /resource/cancel 
    # Forces the session data which is usually expired after sign 
    # in to be expired now. This is useful if the user wants to 
    # cancel oauth signing in/up in the middle of the process, 
    # removing all OAuth session data. 
    def cancel 
    expire_data_after_sign_in! 
    redirect_to new_registration_path(resource_name) 
    end 

    protected 

    def update_needs_confirmation?(resource, previous) 
    resource.respond_to?(:pending_reconfirmation?) && 
     resource.pending_reconfirmation? && 
     previous != resource.unconfirmed_email 
    end 

    # By default we want to require a password checks on update. 
    # You can overwrite this method in your own RegistrationsController. 
    def update_resource(resource, params) 
    resource.update_with_password(params) 
    end 

    # Build a devise resource passing in the session. Useful to move 
    # temporary session data to the newly created user. 
    def build_resource(hash=nil) 
    self.resource = resource_class.new_with_session(hash || {}, session) 
    end 

    # Signs in a user on sign up. You can overwrite this method in your own 
    # RegistrationsController. 
    def sign_up(resource_name, resource) 
    sign_in(resource_name, resource) 
    end 

    # The path used after sign up. You need to overwrite this method 
    # in your own RegistrationsController. 
    def after_sign_up_path_for(resource) 
    after_sign_in_path_for(resource) 
    end 

    # The path used after sign up for inactive accounts. You need to overwrite 
    # this method in your own RegistrationsController. 
    def after_inactive_sign_up_path_for(resource) 
    scope = Devise::Mapping.find_scope!(resource) 
    router_name = Devise.mappings[scope].router_name 
    context = router_name ? send(router_name) : self 
    context.respond_to?(:root_path) ? context.root_path : "/" 
    end 

    # The default url to be used after updating a resource. You need to overwrite 
    # this method in your own RegistrationsController. 
    def after_update_path_for(resource) 
    signed_in_root_path(resource) 
    end 

    # Authenticates the current scope and gets the current resource from the session. 
    def authenticate_scope! 
    send(:"authenticate_#{resource_name}!", force: true) 
    self.resource = send(:"current_#{resource_name}") 
    end 

    def sign_up_params 
    params.require(:user).permit(:first_name, :last_name, :email, :password, :country, :gender, :goal) 
    end 

    def account_update_params 
    params.require(:user).permit(:first_name, :last_name, :email, :current_password, :password, :country, :gender, :goal) 
    end 

    def translation_scope 
    'devise.registrations' 
    end 
    #def update_resource(resource, params) 
    #resource.update_without_password(params) 
    #end 
end 

'

結果，我已經改變了路由文件以包括：

'

Rails.application.routes.draw do 
    devise_for :users, :controllers => { registrations: 'registrations' } 

    devise_scope :user do 
    authenticated :user do 
     root 'users#index', as: :authenticated_root 
    end 
    unauthenticated do 
     root 'devise/sessions#new', as: :unauthenticated_root 
    end 
end 

'

這裏是我的耙路線： My Rake Routes

這裏是我的app/views/layouts/application.html.erb根據要求！

'

1 <html> 
    2 <head> 
~ 3  <title><%= content_for?(:title) ? yield(:title) : 'KodoTechnologies' %></title> 
    4  <%= csrf_meta_tags %> 
    5 
    6  <%= stylesheet_link_tag "application", params[:controller], :media => "all" %> 
    7  <%= javascript_include_tag "application", params[:controller] %> 
    8 </head> 
    9 
    10 <body> 
~ 11 
+ 12  <% if current_user && current_user.admin? %> 
+ 13  <div id="admin_menubar"> 
+ 14   <%= render "customs/admin_menubar" %> 
+ 15  </div> 
+ 16  <% end %> 
+ 17 
+ 18  <% if current_user && !current_user.admin? %> 
+ 19  <div id="student_menubar"> 
+ 20   <%= render "customs/student_menubar" %> 
+ 21  </div> 
+ 22  <% end %> 
+ 23 
+ 24  <div id="content"> 
+ 25  <%= content_for?(:content) ? yield(:content) : yield %> 
+ 26  </div> 
+ 27 
    28 </body> 
+ 29 
+ 30 <%= content_for(:page_scripts) %> 
+ 31 
    32 </html> 

'

---

摘要：

1. 前面說過，這對記數的工作原理相同的錯誤顯示方法配給過程不適用於登錄過程

2. 我覺得我的限制來自我對Devise SessionsController如何工作的有限理解。我創建了自己的RegistrationsController，它繼承了Devise :: RegistrationsController並且成功了，但我不知道如何使用SessionsController，因此無法調試甚至實現我自己的會話驗證過程＃使用flash錯誤消息創建

---

問：

誰能告訴我，我可能是做錯了多數民衆贊成允許被顯示在註冊驗證消息，但沒有在日誌中的形式？

讓我知道如果我遺漏了任何東西，我很樂意提供您需要的一切。先謝謝你！

Answer 1

Devise幫助建議您在應用程序佈局文件中包含Flash消息。你的似乎沒有這些;嘗試包括他們。這將在整個應用程序中啓用閃光消息，而不管正在播放什麼路由。

對於基本的Rails項目，你可能會使用這樣的：如果你使用的引導與Glyphicons

<% if flash[:notice].present? %> 
    <p><%= flash[:notice] %></p> 
<% end %> 

<% if flash[:alert].present? %> 
    <p><%= flash[:alert] %></p> 
<% end %> 

，我發現下面的模板作品相當不錯：

<% if flash[:notice].present? %> 
    <div class="alert alert-info"> 
    <span class="glyphicon glyphicon-info-sign"></span> 
    <%= flash[:notice] %> 
    </div> 
<% end %> 

<% if flash[:alert].present? %> 
    <div class="alert alert-danger"> 
    <span class="glyphicon glyphicon-exclamation-sign"></span> 
    <%= flash[:alert] %> 
    </div> 
<% end %>