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Ruby on Rails的找不到“标签”

2010-05-21 74 views
0

喜试图与Ruby的一个注册页面上使用教程轨这里Ruby on Rails的找不到“标签”

http://rails.francik.name/week4.html

遇到麻烦页到工作中发现添加

后 
<h1>Register</h1> 
<enter code here%= error_messages_for :user %> 
<% form_for :user do |f| %> 
    <p> 
    <%= f.label :screen_name %>: 
    <%= f.text_field :screen_name %> 
    </p> 
    <p> 
    <%= f.label :e_mail, "E-Mail" %>: 
    <%= f.text_field :e_mail %> 
    </p> 
    <p> 
    <%= f.label :password %>: 
    <%= f.password_field :password %> 
    </p> 
    <p> 
    <%= f.submit "Register" %> 
    </p> 
<% end %>

到register.rhtml文件

加载时我得到

NoMethodError in User#register 
Showing app/views/user/register.rhtml where line #5 raised: 
undefined method `label' for #<ActionView::Helpers::FormBuilder:0x275ef48>

应用程序跟踪是

#{RAILS_ROOT}/app/views/user/register.rhtml:5:in `_run_rhtml_47app47views47user47register46rhtml' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_helper.rb:151:in `fields_for' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_helper.rb:127:in `form_for' 
#{RAILS_ROOT}/app/views/user/register.rhtml:3:in `_run_rhtml_47app47views47user47register46rhtml' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:326:in `send' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:326:in `compile_and_render_template' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:301:in `render_template' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:260:in `render_file' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:806:in `render_file' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:711:in `render_with_no_layout' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/layout.rb:247:in `render_without_benchmark' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:50:in `render' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/1.8/benchmark.rb:293:in `measure' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:50:in `render' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:1096:in `perform_action_without_filters' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:632:in `call_filter' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:619:in `perform_action_without_benchmark' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in `perform_action_without_rescue' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/1.8/benchmark.rb:293:in `measure' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in `perform_action_without_rescue' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/rescue.rb:83:in `perform_action' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in `send' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in `process_without_filters' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:624:in `process_without_session_management_support' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/session_management.rb:114:in `process' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:330:in `process' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/dispatcher.rb:41:in `dispatch' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:78:in `process' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in `synchronize' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in `process' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:618:in `process_client' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:617:in `each' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:617:in `process_client' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `run' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `initialize' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `new' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `run' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `initialize' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `new' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `run' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:271:in `run' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in `each' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in `run' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:127:in `run' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/command.rb:211:in `run' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:243 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/bin/mongrel_rails:16:in `load' 
/Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/bin/mongrel_rails:16

来源

2010-05-21 msandbot

+2

我想这是因为你用的导轨'1.13.1'过时的版本。实际是'2.3.5'和'3.0'已经在测试中。所以我会尝试一个新版本的rails – jigfox 2010-05-21 13:27:19

回答

1

嘿，我觉得这个教程是过时了！你指的是.rhtml文件里（虽然我没有看到register.html.erb在本教程中提到的）

你可能想尝试这样的事：

<h1>Register</h1> 
<% form_for @user do |f| %> 
    <%= f.error_messages %> 
    <p> 
    <%= f.label :screen_name %>: 
    <%= f.text_field :screen_name %> 
    </p> 
    <p> 
    <%= f.label :e_mail, "E-Mail" %>: 
    <%= f.text_field :e_mail %> 
    </p> 
    <p> 
    <%= f.label :password %>: 
    <%= f.password_field :password %> 
    </p> 
    <p> 
    <%= f.submit "Register" %> 
    </p> 
<% end %>

编辑：由于这没有为你工作，我要从头开始应用一个新的轨道，使这项工作：

prompt>rails test_app 
prompt>cd test_app 
prompt>script/generate scaffold user screen_name:string e_mail:string password:string 
prompt>rake db:migrate 
prompt>script/server

点浏览器http://localhost:3000/users/new，它应该工作。你会得到类似于我上面发布的内容。这可以告诉你，我给你的东西应该工作，但我认为你的应用缺少一些东西。试着从头开始，然后从那里弄清楚如何让注册行为起作用。

来源

2010-05-21 12:57:10 DJTripleThreat

+0

，所以我应该使用rhtml还是html.erb？我仍然得到同样的错误顺便说一句。谢谢 – msandbot 2010-05-21 13:03:05

+0

尝试从开始到结束我的'教程'。这应该让它起作用。 – DJTripleThreat 2010-05-21 13:22:43

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