Rails 3 表单使用“编辑”而不是“更新”提交表格时

Question

我在 Rails 3 中的表单有问题。如果我创建某些内容，表单就会工作，但如果我尝试更新某些内容，它们就会失败。在这个例子中，我尝试更新用户设置，如姓名、邮件等。以下是相关的代码片段：

从 User_Controller.rb 编辑和更新

  def edit
    @title = "Nutzerverwaltung"
  end

  def update
    @user = User.find(params[:id])

    if @user.update_attributes(params[:user])
      flash[:success] = "Profil aktualisiert"
      redirect_to @user
    else
      @title = "Edit"
      render 'edit'
    end
  end

然后，有以下形式：

%form.user_edit
  = form_for @user, :url => {:controller => "users", :action => "update"}, :html => { :method => :put } do |f|
    = render 'shared/error_messages', :object => f.object
    = render 'fields', :f => f
    .actions
      = f.submit "Update"

运行本地 WEBrick 服务器时的我的终端输出（某些表单标签有德国名字）：

Started GET "/users/2/edit?utf8=%E2%9C%93&_method=put&authenticity_token=R5LfeIAjpJOpH%2B0yMD8PLO24%2Fgcct0CCqXuzoLoVibs%3D&user%5Banrede%5D=&user%5Bname%5D=Johnny&user%5Bemail%5D=t.schneider%40mail.com&user%5Bpassword%5D=&user%5Bpassword_confirmation%5D=&user%5Bplz%5D=&user%5Bort%5D=&user%5Bstrasse%5D=&commit=Update" for 127.0.0.1 at 2011-09-13 15:53:24 +0200
  Processing by UsersController#edit as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"R5LfeIAjpJOpH+0yMD8PLO24/gcct0CCqXuzoLoVibs=", "user"=>{"anrede"=>"", "name"=>"TESTer", "email"=>"[email protected]", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]", "plz"=>"", "ort"=>"", "strasse"=>""}, "commit"=>"Update", "id"=>"2"}
  User Load (1.2ms)  SELECT "users".* FROM "users" WHERE ("users"."id" = 2) LIMIT 1
  CACHE (0.0ms)  SELECT "users".* FROM "users" WHERE ("users"."id" = 2) LIMIT 1
Rendered shared/_error_messages.html.haml (2.2ms)
Rendered users/_fields.html.haml (7.5ms)
Rendered layouts/_stylesheets.html.haml (2.4ms)
Rendered layouts/_header.html.haml (3.9ms)
Rendered layouts/_footer.html.haml (2.0ms)
Rendered users/edit.html.haml within layouts/application (33.2ms)
Completed 200 OK in 118ms (Views: 36.7ms | ActiveRecord: 1.2ms)

然后是我的耙子路线，这对我来说似乎没问题：

       users GET    /users(.:format)          {:action=>"index", :controller=>"users"}
       users POST   /users(.:format)          {:action=>"create", :controller=>"users"}
    new_user GET    /users/new(.:format)      {:action=>"new", :controller=>"users"}
   edit_user GET    /users/:id/edit(.:format) {:action=>"edit", :controller=>"users"}
        user GET    /users/:id(.:format)      {:action=>"show", :controller=>"users"}
        user PUT    /users/:id(.:format)      {:action=>"update", :controller=>"users"}
        user DELETE /users/:id(.:format)      {:action=>"destroy", :controller=>"users"}
    sessions POST   /sessions(.:format)       {:action=>"create", :controller=>"sessions"}
 new_session GET    /sessions/new(.:format)   {:action=>"new", :controller=>"sessions"}
     session DELETE /sessions/:id(.:format)   {:action=>"destroy", :controller=>"sessions"}
       posts POST   /posts(.:format)          {:action=>"create", :controller=>"posts"}
   edit_post GET    /posts/:id/edit(.:format) {:action=>"edit", :controller=>"posts"}
        post DELETE /posts/:id(.:format)      {:action=>"destroy", :controller=>"posts"}
        root        /(.:format)               {:controller=>"pages", :action=>"start"}
                    /(.:format)               {:controller=>"pages", :action=>"start"}
       start        /start(.:format)          {:controller=>"pages", :action=>"start"}
     kontakt        /kontakt(.:format)        {:controller=>"pages", :action=>"kontakt"}
    tagebuch        /tagebuch(.:format)       {:controller=>"pages", :action=>"tagebuch"}
 hinzufuegen        /hinzufuegen(.:format)    {:controller=>"pages", :action=>"hinzufuegen"}
   bluefocus        /bluefocus(.:format)      {:controller=>"pages", :action=>"bluefocus"}
    seminare        /seminare(.:format)       {:controller=>"pages", :action=>"seminare"}
    angebote        /angebote(.:format)       {:controller=>"pages", :action=>"angebote"}
    specials        /specials(.:format)       {:controller=>"pages", :action=>"specials"}
        shop        /shop(.:format)           {:controller=>"pages", :action=>"shop"}
registrieren        /registrieren(.:format)   {:controller=>"users", :action=>"registrieren"}
       login        /login(.:format)          {:controller=>"sessions", :action=>"login"}
      logout        /logout(.:format)         {:controller=>"sessions", :action=>"destroy"}
                    /posts/:id/edit(.:format) {:controller=>"posts", :action=>"edit"}

我知道这个编辑功能曾经工作过，但我不知道发生了什么变化，所以它不再工作了。

如果您需要更多信息，请说一句话。

欢迎每一个帮助。谢谢！

Answer 1

您的 HAML 中有一个 %form.user_edit 标记，位于生成表单标记的 form_for 之前。由于您没有指定要提交表单的 url（在您手动创建的表单标记中），因此它可能默认发布到当前 url（大概是您的用户编辑路由）。

尝试删除 %form.user_edit 并添加 :html =>; {：类=> 'user_edit', :方法 => :put} 到您的 form_for 调用中。

Answer 2

看起来 update_attributes 返回 False 并导致您的编辑操作被渲染。您的用户模型中存在哪些 attr_accessible 属性？

另外：存在哪些验证？