NoMethodError in Account#detail

Showing app/views/platphorm/account/call_detail.html.erb where line #203 raised:

You have a nil object when you didn't expect it!
The error occurred while evaluating nil.name

Extracted source (around line #203):

200:               </tr>
201:               <tr>
202:                 <td class="body">Category:</td>
203:                 <td class="body"><%= @user_transaction.object.listing.category.parent_category.name %></td>
204:               </tr>
205:               <tr>
206:                 <td class="body">Topic:</td>

RAILS_ROOT: /home/moshe/code/platform_dev/trunk
Application Trace | Framework Trace | Full Trace

app/views/platphorm/account/call_detail.html.erb:203
app/controllers/account_controller.rb:73:in `detail'

vendor/rails/actionpack/lib/action_view/renderable.rb:39:in `send'
vendor/rails/actionpack/lib/action_view/renderable.rb:39:in `render'
vendor/rails/actionpack/lib/action_view/template.rb:73:in `render_template'
vendor/rails/actionpack/lib/action_view/base.rb:256:in `render'
vendor/rails/actionpack/lib/action_view/base.rb:367:in `_render_with_layout'
vendor/rails/actionpack/lib/action_view/base.rb:254:in `render'
vendor/rails/actionpack/lib/action_controller/base.rb:1174:in `render_for_file'
vendor/rails/actionpack/lib/action_controller/base.rb:899:in `render_without_benchmark'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:51:in `render'
vendor/rails/activesupport/lib/active_support/core_ext/benchmark.rb:8:in `realtime'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:51:in `render'
vendor/rails/actionpack/lib/action_controller/base.rb:1253:in `send'
vendor/rails/actionpack/lib/action_controller/base.rb:1253:in `perform_action_without_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:617:in `call_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
vendor/rails/actionpack/lib/action_controller/rescue.rb:136:in `perform_action_without_caching'
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:13:in `perform_action'
vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
vendor/rails/activerecord/lib/active_record/query_cache.rb:8:in `cache'
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:12:in `perform_action'
vendor/rails/actionpack/lib/action_controller/base.rb:524:in `send'
vendor/rails/actionpack/lib/action_controller/base.rb:524:in `process_without_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:606:in `process_without_session_management_support'
vendor/rails/actionpack/lib/action_controller/session_management.rb:134:in `process'
vendor/rails/actionpack/lib/action_controller/base.rb:392:in `process'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:183:in `handle_request'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:123:in `dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:122:in `synchronize'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:122:in `dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:39:in `dispatch'
vendor/rails/railties/lib/webrick_server.rb:103:in `handle_dispatch'
vendor/rails/railties/lib/webrick_server.rb:74:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:95:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `each'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:23:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start'
vendor/rails/railties/lib/webrick_server.rb:60:in `dispatch'
vendor/rails/railties/lib/commands/servers/webrick.rb:66
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
vendor/rails/railties/lib/commands/server.rb:49
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
script/server:3

app/views/platphorm/account/call_detail.html.erb:203
vendor/rails/actionpack/lib/action_view/renderable.rb:39:in `send'
vendor/rails/actionpack/lib/action_view/renderable.rb:39:in `render'
vendor/rails/actionpack/lib/action_view/template.rb:73:in `render_template'
vendor/rails/actionpack/lib/action_view/base.rb:256:in `render'
vendor/rails/actionpack/lib/action_view/base.rb:367:in `_render_with_layout'
vendor/rails/actionpack/lib/action_view/base.rb:254:in `render'
vendor/rails/actionpack/lib/action_controller/base.rb:1174:in `render_for_file'
vendor/rails/actionpack/lib/action_controller/base.rb:899:in `render_without_benchmark'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:51:in `render'
vendor/rails/activesupport/lib/active_support/core_ext/benchmark.rb:8:in `realtime'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:51:in `render'
app/controllers/account_controller.rb:73:in `detail'
vendor/rails/actionpack/lib/action_controller/base.rb:1253:in `send'
vendor/rails/actionpack/lib/action_controller/base.rb:1253:in `perform_action_without_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:617:in `call_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
vendor/rails/actionpack/lib/action_controller/rescue.rb:136:in `perform_action_without_caching'
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:13:in `perform_action'
vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
vendor/rails/activerecord/lib/active_record/query_cache.rb:8:in `cache'
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:12:in `perform_action'
vendor/rails/actionpack/lib/action_controller/base.rb:524:in `send'
vendor/rails/actionpack/lib/action_controller/base.rb:524:in `process_without_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:606:in `process_without_session_management_support'
vendor/rails/actionpack/lib/action_controller/session_management.rb:134:in `process'
vendor/rails/actionpack/lib/action_controller/base.rb:392:in `process'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:183:in `handle_request'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:123:in `dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:122:in `synchronize'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:122:in `dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:39:in `dispatch'
vendor/rails/railties/lib/webrick_server.rb:103:in `handle_dispatch'
vendor/rails/railties/lib/webrick_server.rb:74:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:95:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `each'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:23:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start'
vendor/rails/railties/lib/webrick_server.rb:60:in `dispatch'
vendor/rails/railties/lib/commands/servers/webrick.rb:66
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
vendor/rails/railties/lib/commands/server.rb:49
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
script/server:3

Request

Parameters:

{"id"=>"12"}

Show session dump

---
:user_id: 24
:return_to: /account/detail/12
:login_transaction_server:
:pay_to: !ruby/object:User
  account_closure_reasons:
  admin_account_closure_reasons:
  advisor_calls:
  advisor_status:
  advisor_statuses:
  attributes:
    mail_forwarding_type: "1"
    city:
    salt: 7fe77a43ff8f198410174828e9efb7ff800a76ef
    receive_call_back_mail: "0"
    created_at: 2009-06-08 18:01:52
    reviewed_by:
    phone_type: "1"
    zip_code:
    crypted_password: 63659c22a14ca420764283eaffd64b8f11bcbc50
    same_line_int_phone: "1"
    updated_at: 2009-06-08 21:19:59
    enable_partner_offers: "0"
    role_id:
    timezone: Central Time (US & Canada)
    user_type: "2"
    id: "25"
    review_comment:
    auto_reply: I'm sorry, I'm not currently checking Mail.
    is_use_schedule_reminder_call: "0"
    use_domestic_phones: "1"
    remember_token:
    last_name:
    last_login_at: 2009-06-08 21:19:59
    well_known: "0"
    reviewed_at:
    daylight_saving: "1"
    status: "1"
    address_line1:
    login: moshe-adv
    enable_platphorm_offers: "0"
    state:
    address_line2:
    pin:
    first_name:
    email: moshe@example.com
  attributes_cache: {}

  bank_accounts:
  bucket_contributions:
  cc_transactions:
  customer_lists:
  customers:
  deleted_sent_messages:
  favorite_listings:
  feedbacks:
  homepage:
  languages:
  listings:
  live_conferences:
  messages_recipients:
  payment_buttons:
  phones:
  received_messages:
  responsible_domain:
  reviewer:
  role:
  seeker_calls:
  sent_messages:
  transfers:
  user_cards:
  user_transactions:
:total_pages: 1
flash: !map:ActionController::Flash::FlashHash {}

:period: 2009-06-01

Response

Headers:

{"Content-Type"=>"text/html",
 "cookie"=>[],
 "Cache-Control"=>"no-cache"}