ActiveRecord：：RecordNotFound - 在 Rails 中找不到 id= 的用户

Question

我遵循这个JQuery验证教程链接。

在链接中，他们给出的路由如下:

在routes.rb

map.check_email “users/check_email”, :controller => “users”, :action => “check_email”
map.resources :users

是抛出错误，我改变:

  match '/check_email' => 'users#check_email', :as => 'check_email'
  devise_for :users, :controllers => {:sessions => 'sessions'}, :path => '', :path_names => { :sign_in => "login", :sign_out => "logout" }

添加jquery。

users_controller.rb:

def check_email
  Rails.logger.debug "check_email..................."
  @user = User.find_by_email(params[:user][:email])
  respond_to do |format|
   format.json { render :json => !@user }
  end
end
  def show
    @user = User.find(params[:id])
    @hide_logo_section = Rails.application.config.custom.force_report_logo_accounts.include?(@user.account.name)
    respond_to do |format|
      format.html # show.html.erb
      format.json { render :json => @user }
    end
  end

在sessions/new中，登录表单后面跟着Forgot password。app/views/会议/new.html.erb:

<%= semantic_form_for(resource_name, :url => password_path(resource_name), :remote => true, :format => :json, :html => { :id => 'password_reset' }) do |f| %>
          <%= f.inputs do %>        
              <%= f.input :email, :label => 'Your email address', :input_html => {  :id => 'user_email_field',:placeholder => "Enter your email..."}%>
                          <label id="error_explanation1" class="error errorExplanation" style="margin-top:-10px;"></label>
          <% end %>
          <%= f.buttons do %>
            <%= f.commit_button :label => 'Send me that link', :button_html => {:class => 'submit button', :id => 'forgot_password_button', :disable_with => 'Wait...' }%>
          <% end %>
        <% end %>
<script type="text/javascript">
$(document).ready(function () {
  alert('hellllllll');
  $('#password_reset').validate({
    debug: true,  
    rules: {
      'user[email]': {required: true, email: true, 
        remote:'/users/check_email' }
    }
  });
});
</script>

我在上面的脚本中远程调用控制器。所需验证和电子邮件验证都很好，但在检查方法时抛出错误。事实上，它不会去方法check_email和显示id=check_email在日志中。这是我的日志:

开始GET "/login" for 127.0.0.1 at 2016-11-04 15:36:22 +0530处理由sessionscontroller# new作为HTML渲染会议/new.html。erb within layouts/home (1152.6ms/_header.html回家。erb (0.5ms)渲染home/_footer.html。女士erb (0.4)在1718ms内完成200个OK (Views: 1315.0ms | ActiveRecord: 0.0ms)

在2016-11-04开始为127.0.0.1获取"/assets/application.js15:36:24 +0530 railsdevtweak:跳过ActionDispatch::Reloader钩子

Started GET "/users/check_email?user%5Bemail%5D=test1%40gmail.com" for127.0.0.1 at 2016-11-04 15:36:38 +0530 RailsDevTweaks:跳过ActionDispatch::Reloader钩子。处理UsersController#show as JSON{"用户"=>{"电子邮件"=>"[e-mail]"},"id"=>"check_email"}用户加载(0.5ms)选择"users"。* FROM"users"WHERE"users"。"account_id"是NULL和"users"。"id" = ?AND (users.deleted_at IS NULL) LIMIT 1[["id"， "check_email"]]完成404 Not Found in 331ms

ActiveRecord::RecordNotFound -无法找到id=check_email的用户("用户"的地方。"account_id"为空且(users.deleted_at为空)]:
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请帮助activerecord::RecordNotFound -无法找到id=

Answer 1

问题出在你的路线上。检查rails文档的内容:

Rails路由是按照指定的顺序匹配的，所以如果你在get 'photos/poll'上面有一个resources:photos，那么show动作的资源行路由将在get行之前匹配。要解决这个问题，请将get行移动到resources行上方，以便首先匹配它。

当你调用URL: /users/check_email时，实际上你正在执行users#show动作。

将check_email路由更改为

get '/users/validation/check_email', to: 'users#check_email', as: :check_email

，它会工作。