在 ActionController::RoutingError 開始 POST "/signup" for::1 （未初始化的常量 UserController 你的意思是？UsersController）：

Question

在為 /signup 路由運行 post 方法時，我無法注冊出現錯誤的用戶。

請幫忙 ！！！

這是我的路線.rb

 Rails.application.routes.draw do
  get    'signup'  => 'users#signup'
  post   'signup'  => 'user#create'
  root   'home#index'
  get    'edit'    => 'home#edit'
  get    'login'   => 'sessions#new'
  post   'login'   => 'sessions#create'
  delete 'logout'  => 'sessions#destroy'

  resources :profiles , only: [:update]
  resources :educations , only: [:new]
end

這是用戶 controller

class UsersController < ApplicationController

  def signup
  end

  def create
    user = User.find_by(email: params[:user][:email].downcase)
    if user && user.authenticate(params[:user][:password])
        log_in(user)
        redirect_to(root_path)
    else
        flash.now[:danger] = 'Invalid email/password combination'
        render('new')
    end
end

end

這是我在視圖下的用戶文件夾下的 html gile

<div class="w-screen h-screen flex justify-center items-center">
    <div class="flex flex-col w-full max-w-md px-4 py-8 bg-white rounded-lg shadow dark:bg-gray-800 sm:px-6 md:px-8 lg:px-10 m-10">
        <div class="self-center mb-6 text-xl font-light text-gray-600 sm:text-2xl dark:text-white">
            Create A New Account
        </div>
        <div class="flex items-center justify-center mt-6">
            <%= link_to "Already have an account? Log in", "/login", class: 'inline-flex items-center text-md font-thin text-center text-gray-500 hover:text-gray-700 dark:text-gray-100 dark:hover:text-white' %></p>
        </div>
        <div class="mt-8">
            <%= form_for(:user, url: signup_path) do |f| %>
                <% login_path %>
                <div class="flex flex-col mb-2">
                    <div class="flex relative ">
                        <%= f.text_field :name, value: 'Aditya', class: 'rounded-lg border-transparent flex-1 appearance-none border border-gray-300 w-full py-2 px-4 bg-white text-gray-700 placeholder-gray-400 shadow-sm text-base focus:outline-none focus:ring-2 focus:ring-purple-600 focus:border-transparent', placeholder: 'Your name' %>
                    </div>
                </div>
                <div class="flex flex-col mb-2">
                    <div class="flex relative ">
                        <%= f.email_field :email, value: 'johndoe@example.com', class: 'rounded-lg border-transparent flex-1 appearance-none border border-gray-300 w-full py-2 px-4 bg-white text-gray-700 placeholder-gray-400 shadow-sm text-base focus:outline-none focus:ring-2 focus:ring-purple-600 focus:border-transparent', placeholder: 'Your email' %>
                    </div>
                </div>
                <div class="flex flex-col mb-2">
                    <div class="flex relative ">
                        <%= f.password_field :password, value: 'password', class: 'rounded-lg border-transparent flex-1 appearance-none border border-gray-300 w-full py-2 px-4 bg-white text-gray-700 placeholder-gray-400 shadow-sm text-base focus:outline-none focus:ring-2 focus:ring-purple-600 focus:border-transparent', placeholder: 'New Password' %>
                    </div>
                </div>
                <div class="flex flex-col mb-2">
                    <div class="flex relative ">
                        <%= f.password_field :cpassword, value: 'password', class: 'rounded-lg border-transparent flex-1 appearance-none border border-gray-300 w-full py-2 px-4 bg-white text-gray-700 placeholder-gray-400 shadow-sm text-base focus:outline-none focus:ring-2 focus:ring-purple-600 focus:border-transparent', placeholder: 'Confirm Password' %>
                    </div>
                </div>
                
                <div class="flex w-full">
                    <%= f.submit "Sign Up", class: "py-2 px-4  bg-purple-600 hover:bg-purple-700 focus:ring-purple-500 focus:ring-offset-purple-200 text-white w-full transition ease-in duration-200 text-center text-base font-semibold shadow-md focus:outline-none focus:ring-2 focus:ring-offset-2  rounded-lg" %>
                </div>
            <% end %>
        </div>
    </div>
</div>

提交表格時：

得到錯誤：

在 2022-01-11 00:14:04 +0530 開始 POST "/signup" for::1

ActionController::RoutingError (uninitialized constant UserController
Did you mean?  UsersController):

Answer 1

將您的routes.rb中的以下行從

post   'signup'  => 'user#create'

至

post   'signup'  => 'users#create'

因為您的 controller 被命名為UsersController （注意復數）。