RegistrationsController＃create中获

RegistrationsController＃create中获

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在Devise :: RegistrationsController＃create中获取NoMethodError

本文介绍了在Devise :: RegistrationsController＃create中获取NoMethodError的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

尝试添加新用户，使用devise gem
运行rake db：迁移并再次运行rails服务器



但是当我键入3000 /帖子/ sign_up



它给了我默认的注册屏幕，但是当尝试创建一个用户我得到



在Devise中的NoMethodError :: RegistrationsController＃创建
未定义的方法`encrypted_pa​​ssword ='for＃



我的日志显示

 在2014-03-18 20:38:22启动POST/ posts为127-03.0 20:38:22 +0000 
 Devise :: RegistrationsController＃创建为HTML 
参数：{utf8=>✓，authenticity_token="2uO2ttqAfK1a2C855cZOpDTsS2Duc7ZzVJxAQ5ObL8M =，post=> {email=>[email protected]，密码=>FILTERED]，password_confirmation=>[FILTERED]}，commit=>注册} 
 79ms内完成500内部服务器错误
 
 NoMethodError（未定义的方法`encrypted_pa​​ssword ='for＃< Post：0x007fde3e09e538>）：
 activemodel（4.0。 4）lib / active_model / attribute_methods.rb：439：在`method_missing'
 activerecord（4.0.4）lib / active_record / attribute_methods.rb：167：在`method_missing'
 devise（3.2.2） lib / devise / models / database_authenticatable.rb：42：在`password ='
 activerecord（4.0.4）lib / active_record / attribute_assignment.rb：42：在`public_send'
 activerecord（4.0.4 ）lib / active_record / attribute_assignment.rb：42：在`_assign_attribute'
 activerecord（4.0.4）lib / active_record / attribute_assignment.rb：29：在`block in assign_attributes'
 activerecord（4.0.4 ）lib / active_record / attribute_assignment.rb：23：in`each'
 activerecord（4.0.4）lib / active_record / attribute_assignment.rb：23：在`assign_attributes'

new.html.erb 

 < h2& ;注册< / h2> 
 
<％= form_for（resource，：as => resource_name，：url => registration_path（resource_name））do | f | ％GT; 
<％= devise_error_messages！ ％GT; 
 
< div><％= f.label：email％>< br /> 
<％= f.email_field：email，：autofocus => true％>< / div> 
 
< div><％= f.label：password％>< br /> 
<％= f.password_field：password％>< / div> 
 
< div><％= f.label：password_confirmation％>< br /> 
<％= f.password_field：password_confirmation％>< / div> 
 
< div><％= f.submit注册％>< / div> 
<％end％> 
 
<％= renderdevise / shared / links％>

post.rb 

  class Post< ActiveRecord :: Base 
＃包含默认设计模块。其他可用的是：
＃：confirmable，：lockedable，：timeoutable和：omniauthable 
 devise：database_authenticatable，：可注册，
：可恢复，可记忆，可追溯，可验证
结束

rake路线

 前缀动词URI模式控制器＃动作
 new_post_session GET /posts/sign_in(.:format）devise / sessions＃new 
 post_session POST /posts/sign_in(.:format）devise / session＃create 
 destroy_post_session DELETE /posts/sign_out(.:format）devise / sessions＃destroy 
 post_password POST /posts/password(.:format）devise / passwords＃create 
 new_post_password GET / post / password / new（。：format）devise / passwords＃new 
 edit_post_password GET /posts/password/edit(.:format）devise / passwords＃edit 
 PATCH /posts/password(.:format ）devise / password＃update 
 PUT /posts/password(.:format）devise / passwords＃update 
 cancel_post_registration GET /posts/cancel(.:format）devise / registrations＃cancel 
 post_registration POST /posts(.:format）devise /注册＃创建
 new_post_registration GET /posts/sign_up(.:format）设计/注册＃new 
 edit_post_registration GET /posts/edit(.:format）设计/注册＃edit 
 PATCH / posts （。：格式）设计/注册＃update 
 PUT /posts(.:format）设计/注册＃update 
 DELETE /posts(.:format）devise / registrations＃destroy 
 posts GET /posts(.:format）帖子＃index 
 POST /posts(.:format）帖子＃创建
 new_post GET /posts/new(.:format）帖子＃new 
 edit_post GET /posts/:id/edit(.:format）posts＃edit 
 post GET /posts/:id(.:format）posts＃show 
 PATCH /posts/:id(.:format ）＃update 
 PUT /posts/:id(.:format）帖子＃update 
 DELETE /posts/:id(.:format）帖子＃destroy 
关于GET / about（。 ：格式）page＃about 
 root GET / pages＃welcome

rails g 

  Neils-MacBook-Pro：prospects neilpatel $ rails g devise：views 
 invoke Devise :: Generators :: SharedViewsGenerator 
创建app / views / devise / shared 
创建app / views / devise / shared / _links.erb 
调用form_for 
创建应用程序/视图/ devise / confirmations 
创建应用程序/ views / devise / confirmations / new.html.erb 
创建app / views / devise / passwords 
创建app / views / devise / passwords / edit.html.erb 
创建app / views / devise / passwords / new.html.erb 
创建应用程序/ views / devise / registrations 
创建app / views / devise / registrations / edit.html.erb 
创建app / views / devise / registrations / new.html.erb 
创建应用/视图/ devise / sessions 
创建app / views / devise / sessions / new.html.erb 
创建app / views / devise / unlocks 
创建app / views / devise / unlocks / new.html .erb 
调用erb 
创建app / views / devise / mailer 
创建app / views / devise / mailer / confirmation_instructions.html.erb 
创建app / views / devise / mailer /reset_password_instructions.html.erb 
创建app / views / devise / mailer / unlock_instructions.html.erb 
 Neils-MacBook-Pro：prospects neilpatel $ rails generate devise Post 
 invoke active_record 
创建db / migrate / 20140 318202353_add_devise_to_posts 
 insert app / models / post.rb 
 route devise_for：posts 
 Neils-MacBook-Pro：prospects neilpatel $ rake db：migrate 
  / pre> 
 
解决方案
主要问题在这里
  NoMethodError（未定义的方法`encrypted_pa​​ssword ='for＃< Post：0x007fde3e09e538>）：
  
查看你的迁移文件。 encrypted_pa​​ssword是否存在？你有这个 t.string：encrypted_pa​​ssword，：null => false，：default => 您的迁移文件中的代码行。而在你的模型文件（即post.rb）中，你也没有定义password属性。 
 
trying to add new users , using the devise gemran rake db:migrate and ran the rails server again
but when i type in 3000/posts/sign_up
it gives me the default sign up screen but when try to create a user i get 
NoMethodError in Devise::RegistrationsController#createundefined method `encrypted_password=' for #
my logs show
Started POST "/posts" for 127.0.0.1 at 2014-03-18 20:38:22 +0000
Processing by Devise::RegistrationsController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"2uO2ttqAfK1a2C855cZOpDTsS2Duc7ZzVJxAQ5ObL8M=", "post"=>{"email"=>"[email protected]", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]"}, "commit"=>"Sign up"}
Completed 500 Internal Server Error in 79ms

NoMethodError (undefined method `encrypted_password=' for #<Post:0x007fde3e09e538>):
  activemodel (4.0.4) lib/active_model/attribute_methods.rb:439:in `method_missing'
  activerecord (4.0.4) lib/active_record/attribute_methods.rb:167:in `method_missing'
  devise (3.2.2) lib/devise/models/database_authenticatable.rb:42:in `password='
  activerecord (4.0.4) lib/active_record/attribute_assignment.rb:42:in `public_send'
  activerecord (4.0.4) lib/active_record/attribute_assignment.rb:42:in `_assign_attribute'
  activerecord (4.0.4) lib/active_record/attribute_assignment.rb:29:in `block in assign_attributes'
  activerecord (4.0.4) lib/active_record/attribute_assignment.rb:23:in `each'
  activerecord (4.0.4) lib/active_record/attribute_assignment.rb:23:in `assign_attributes'

new.html.erb 
<h2>Sign up</h2>

<%= form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f| %>
  <%= devise_error_messages! %>

  <div><%= f.label :email %><br />
  <%= f.email_field :email, :autofocus => true %></div>

  <div><%= f.label :password %><br />
  <%= f.password_field :password %></div>

  <div><%= f.label :password_confirmation %><br />
  <%= f.password_field :password_confirmation %></div>

  <div><%= f.submit "Sign up" %></div>
<% end %>

<%= render "devise/shared/links" %>

post.rb
class Post < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable
end

rake routes 
Prefix Verb   URI Pattern                    Controller#Action
        new_post_session GET    /posts/sign_in(.:format)       devise/sessions#new
            post_session POST   /posts/sign_in(.:format)       devise/sessions#create
    destroy_post_session DELETE /posts/sign_out(.:format)      devise/sessions#destroy
           post_password POST   /posts/password(.:format)      devise/passwords#create
       new_post_password GET    /posts/password/new(.:format)  devise/passwords#new
      edit_post_password GET    /posts/password/edit(.:format) devise/passwords#edit
                         PATCH  /posts/password(.:format)      devise/passwords#update
                         PUT    /posts/password(.:format)      devise/passwords#update
cancel_post_registration GET    /posts/cancel(.:format)        devise/registrations#cancel
       post_registration POST   /posts(.:format)               devise/registrations#create
   new_post_registration GET    /posts/sign_up(.:format)       devise/registrations#new
  edit_post_registration GET    /posts/edit(.:format)          devise/registrations#edit
                         PATCH  /posts(.:format)               devise/registrations#update
                         PUT    /posts(.:format)               devise/registrations#update
                         DELETE /posts(.:format)               devise/registrations#destroy
                   posts GET    /posts(.:format)               posts#index
                         POST   /posts(.:format)               posts#create
                new_post GET    /posts/new(.:format)           posts#new
               edit_post GET    /posts/:id/edit(.:format)      posts#edit
                    post GET    /posts/:id(.:format)           posts#show
                         PATCH  /posts/:id(.:format)           posts#update
                         PUT    /posts/:id(.:format)           posts#update
                         DELETE /posts/:id(.:format)           posts#destroy
                   about GET    /about(.:format)               pages#about
                    root GET    /                              pages#welcome

rails g
Neils-MacBook-Pro:prospects neilpatel$ rails g devise:views
      invoke  Devise::Generators::SharedViewsGenerator
      create    app/views/devise/shared
      create    app/views/devise/shared/_links.erb
      invoke  form_for
      create    app/views/devise/confirmations
      create    app/views/devise/confirmations/new.html.erb
      create    app/views/devise/passwords
      create    app/views/devise/passwords/edit.html.erb
      create    app/views/devise/passwords/new.html.erb
      create    app/views/devise/registrations
      create    app/views/devise/registrations/edit.html.erb
      create    app/views/devise/registrations/new.html.erb
      create    app/views/devise/sessions
      create    app/views/devise/sessions/new.html.erb
      create    app/views/devise/unlocks
      create    app/views/devise/unlocks/new.html.erb
      invoke  erb
      create    app/views/devise/mailer
      create    app/views/devise/mailer/confirmation_instructions.html.erb
      create    app/views/devise/mailer/reset_password_instructions.html.erb
      create    app/views/devise/mailer/unlock_instructions.html.erb
Neils-MacBook-Pro:prospects neilpatel$ rails generate devise Post
      invoke  active_record
      create    db/migrate/20140318202353_add_devise_to_posts
      insert    app/models/post.rb
       route  devise_for :posts
Neils-MacBook-Pro:prospects neilpatel$ rake db:migrate

 解决方案 
The main problem is here
NoMethodError (undefined method `encrypted_password=' for #<Post:0x007fde3e09e538>):

Check out you migration file. Is encrypted_password present or not? Do you have this t.string :encrypted_password, :null => false, :default => "" line of code in your migration file. And in your model file (i.e post.rb) you haven't define password attribute too. 
                        
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08-14 13:29
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