VPF::Ошибка SCAFFOLD - Форум программистов

segods

Дата 23.3.2008, 19:26 (ссылка)

(нет голосов)

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Новичок

Профиль
Группа: Участник
Сообщений: 13
Регистрация: 14.2.2008

Репутация: нет
Всего: нет

Что за хрень?

Код


I:\Progs\InstantRails-2.0-win\rails_apps\friend>ruby script/generate scaffold us
er login:string name:string about:text
      exists  app/models/
      exists  app/controllers/
      exists  app/helpers/
      exists  app/views/users
      exists  app/views/layouts/
      exists  test/functional/
      exists  test/unit/
   identical  app/views/users/index.html.erb
   identical  app/views/users/show.html.erb
   identical  app/views/users/new.html.erb
   identical  app/views/users/edit.html.erb
   identical  app/views/layouts/users.html.erb
   identical  public/stylesheets/scaffold.css
  dependency  model
      exists    app/models/
      exists    test/unit/
      exists    test/fixtures/
   identical    app/models/user.rb
   identical    test/unit/user_test.rb
        skip    test/fixtures/users.yml
      exists    db/migrate
Another migration is already named create_users: db/migrate/001_create_users.rb

I:\Progs\InstantRails-2.0-win\rails_apps\friend>

Код


 NoMethodError in Users#index

Showing users/index.html.erb where line #10 raised:

You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.each

Extracted source (around line #10):

7:     <th>About</th>
8:   </tr>
9: 
10: <% for user in @users %>
11:   <tr>
12:     <td><%=h user.login %></td>
13:     <td><%=h user.name %></td>

RAILS_ROOT: I:/Progs/InstantRails-2.0-win/rails_apps/friend
Application Trace | Framework Trace | Full Trace

app/views/users/index.html.erb:10:in `_run_erb_47app47views47users47index46html46erb'

I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in `send'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in `compile_and_render_template'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:365:in `render_template'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:316:in `render_file'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1100:in `render_for_file'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:836:in `render_with_no_layout'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/layout.rb:262:in `render_without_benchmark'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:51:in `render'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:51:in `render'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1153:in `default_render'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1164:in `perform_action_without_filters'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:697:in `call_filters'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:689:in `perform_action_without_benchmark'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/rescue.rb:199:in `perform_action_without_caching'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/caching.rb:678:in `perform_action'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in `cache'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/query_cache.rb:8:in `cache'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in `perform_action'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:524:in `send'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:524:in `process_without_filters'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:685:in `process_without_session_management_support'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/session_management.rb:123:in `process'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:388:in `process'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in `handle_request'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:115:in `dispatch'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:126:in `dispatch_cgi'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:9:in `dispatch'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in `handle_dispatch'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:78:in `service'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:92:in `each'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:92:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:23:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in `dispatch'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/webrick.rb:66
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
script/server:3

app/views/users/index.html.erb:10:in `_run_erb_47app47views47users47index46html46erb'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in `send'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in `compile_and_render_template'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:365:in `render_template'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:316:in `render_file'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1100:in `render_for_file'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:836:in `render_with_no_layout'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/layout.rb:262:in `render_without_benchmark'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:51:in `render'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:51:in `render'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1153:in `default_render'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1164:in `perform_action_without_filters'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:697:in `call_filters'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:689:in `perform_action_without_benchmark'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/rescue.rb:199:in `perform_action_without_caching'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/caching.rb:678:in `perform_action'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in `cache'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/query_cache.rb:8:in `cache'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in `perform_action'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:524:in `send'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:524:in `process_without_filters'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:685:in `process_without_session_management_support'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/session_management.rb:123:in `process'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:388:in `process'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in `handle_request'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:115:in `dispatch'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:126:in `dispatch_cgi'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:9:in `dispatch'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in `handle_dispatch'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:78:in `service'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:92:in `each'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:92:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:23:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in `dispatch'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/webrick.rb:66
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
I:/Progs/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
script/server:3

Request

Parameters:

None

Show session dump

--- 
flash: !map:ActionController::Flash::FlashHash {}


Response

Headers:

{"cookie"=>[],
 "Cache-Control"=>"no-cache"}

v2v

Дата 24.3.2008, 21:03 (ссылка)

(нет голосов)

Загрузка ...

Эксперт

Профиль
Группа: Завсегдатай
Сообщений: 1620
Регистрация: 20.9.2006
Где: Киев

Репутация: нет
Всего: 56

шо не ясно? (с)
ты уже создал migration файл . удали его и запусти заного scafolding
db/migrate/001_create_users.rb

Добавлено через 3 минуты и 34 секунды
А кто знает как в рельсах 2.0 с помощью scaffold создать контроллер в подкаталоге :
например , как я читаю в более ранних версиях было:
script/generate scaffold Topic 'admin/topics'
но в новой версии , на такое scaffold ругается "wrong number of arguments (1 for 2)"
в инете есть инфа, про то что надо сначала создать в общем каталоге , а потом копировать в свой. Но это не пойдёт.
Есть идеи?

Добавлено через 13 минут и 28 секунд
нашёл этот топик
если у меня будет не только admin , то данный вариант не подойдёт...

--------------------

java блох

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