ActiveRecord::RecordNotFound in UsersController#index
找不到没有 ID Rails.root 的 UserSession:C:/Sites/login_app
应用程序跟踪 | 框架跟踪 | 完整跟踪 app/controllers/application_controller.rb:9:in current_user_session'
app/controllers/application_controller.rb:14:in
current_user' app/views/layouts/application.html.erb:12:in _app_views_layouts_application_html_erb__233847886_33215772'
app/controllers/users_controller.rb:7:in
index'
class ApplicationController < ActionController::Base
protect_from_forgery
helper_method :current_user private
def current_user_session
如果定义返回@current_user_session?(@current_user_session)
@current_user_session = UserSession.find
end
def current_user
如果定义返回@current_user?(@current_user)
@current_user = current_user_session && current_user_session。记录
结束
结束类 HomeController < ApplicationController
def index
end
end
类用户会话控制器 < 应用控制器
def new
@user_session = UserSession.new
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @user_session }
end
enddef create
@user_session = UserSession.new(params[:user_session])
respond_to do |format|
if @user_session.save format.html
{ redirect_to(:users, :notice => '登录成功') }
format.xml { 渲染 :xml => @user_session, :status => :created, :location => @user_session }
else
format.html { render :action => "new" }
format.xml { render :xml => @user_session.errors, :status => :unprocessable_entity }
end
end
end
def destroy
@user_session = UserSession.find
@user_session.destroy
respond_to 做 |格式|
format.html { redirect_to(:users, :notice => '再见!') }
格式。
结束
结束
结束类用户控制器 < 应用控制器
def index
@users = User.all
respond_to do |format|
format.html # index.html.erb
format.json { 渲染 json: @users }
end
enddef show
@user = User.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.json { 渲染 json: @user }
end
enddef new
@user = User.new
respond_to do |format|
format.html # new.html.erb
format.json { 渲染 json: @user }
end
end
def edit
@user = User.find(params[:id])
enddef create
@user = User.new(params[:user])
respond_to do |format|
if @user.save format.html
{ redirect_to(:users, :notice => '注册成功') }
format.xml { render :xml => @user, :status => :created, :location => @user }
else
format.html { render :action => "new" }
format.xml { render :xml => @user.errors, :status => :unprocessable_entity }
end
end
end
def update
@user = User.find(params[:id])
respond_to do |format|
if @user.update_attributes(params[:user])
format.html { redirect_to @user, notice: '用户已成功更新。' }
format.json { head :no_content }
else format.html
{ 渲染动作:“编辑” }
format.json { 渲染 json:@user.errors,状态::unprocessable_entity }
end
end
end
def destroy
@user = User.find(params[:id])
@user.destroy
respond_to do |format|
format.html { redirect_to users_url }
format.json { head :no_content }
end
end
end
layout/
apllication.html LoginApp
<%= stylesheet_link_tag :all %>
<%= javascript_include_tag :defaults %>
<%= csrf_meta_tag %>
<% if current_user %>
<%= link_to "Edit Profile", edit_user_path(current_user.id)% >
<%= link_to "注销", :logout%>
<% else %>
<%= link_to "注册", new_user_path%>
<%= link_to "登录", :login %>
<% end %>
<%= yield %>
user_seesion/_form.html
<%= form_for(@user_session) 做 |f| %>
<% if @user_session.errors.any? %>
<%= 复数(@user_session.errors.count, "error") %> 禁止保存此 user_session:
- <%= 消息 %>
<% @user_session.errors.full_messages.each 做 |msg| %>
<% 结束 %>
<% 结束 %>
<%= f.label :username %>
<%= f.text_field :username %>
<%= f.label :password %>
<%= f.password_fields :password %>
<%= f.submit %>
<%结束%>user_sessions/edit.html
编辑 user_session
<%= render 'form' %>
<%= link_to 'Show', @user_session %>
| <%= link_to '返回', user_sessions_path %>user_sessions/index.html :
列出 user_sessions
用户名
密码
<% @user_sessions.each 做 |user_session| %>
<%= user_session.username %>
<%= user_session.password %>
<%= link_to '显示',user_session %>
<%= link_to '编辑',edit_user_session_path(user_session) %>
<%= link_to '销毁' , user_session, method: :delete, data: { confirm: 'Are you sure?' } %>
<% 结束 %>
<%= link_to '新用户会话', new_user_session_path %>
- user_sessions/new.html
登录
<%= 渲染'表格' %>
<%= link_to '返回', user_sessions_path %>
- user_sessions/show.html
<%= 通知 %>
用户名:
<%= @user_session.username %>
密码:
<%= @user_session.password %>
<%= link_to '编辑', edit_user_session_path(@user_session) %>
| <%= link_to '返回', user_sessions_path %>
-users/_form.html
<%= form_for(@user) 做 |f| %>
<% 如果@user.errors.any? %>
<%= 复数(@user.errors.count, "error") %> 禁止保存该用户:
<ul><br/>
<% @user.errors.full_messages.each do |msg| %><br/>
<li><%= msg %></li><br/>
<% end %><br/>
</ul><br/>
</div><br/>
<% 结束 %>
<%= f.label :username %>
<%= f.text_field :username %>
<%= f.label :email %>
<%= f.text_field :email %>
<%= f.label :password %>
<%= f.password_field :password %>
<%= f.label :password_confirmation %>
<%= f.password_field :password_confirmation %>
<%= f.submit 'create user'%>
<% end %>
- 用户/edit.html
编辑用户
<%= 渲染'表格' %>
<%= link_to '显示', @user %>
| <%= link_to '返回', users_path %>
- 用户/index.html :
列出用户
<%= 通知 %>
用户名
电子邮件
<% @users.each 做 |user| %>
<%= user.username %>
<%= user.email %>
<%= link_to '显示',用户 %>
<%= link_to '编辑',edit_user_path(user) %>
<%= link_to '销毁' , user, :confirm => 'Are you sure?', :method => :delete %>
<% end %>
<%= link_to '新用户', new_user_path %>
- 用户/new.html :
新用户
<%= render 'form' %>
<%= link_to 'Back', users_path %>
- users/show.html :
<%= 通知 %>
用户名:
<%= @user.username %>
电子邮件:
<%= @user.email %>
加密密码:
<%= @user.crypted_password %>
密码盐:
<%= @user.password_salt %>
持久性令牌:
<%= @user.persistence_token %>
<%= link_to '编辑', edit_user_path(@user) %>
| <%= link_to '返回', users_path %>