time-exchange-gr/oscurrency — Issue #65: TemplateError in categories#create
Author: 3point2
Created: 2012-01-13 22:50:13+00:00
State: open

```
A ActionView::TemplateError occurred in categories#create:

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.map
On line #2 of app/views/categories/_select_categories.html.erb

1: <%=
2: collection_select('category',
3: 'parent_id',
4: @all_categories,
5: :id,

.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_options_helper.rb:327:in `options_from_collection_for_select'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_options_helper.rb:543:in `to_collection_select_tag'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_options_helper.rb:162:in `collection_select'
app/views/categories/_select_categories.html.erb:2
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:306:in `with_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:30:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:20:in `render'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:30:in `benchmark'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:19:in `render'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/template.rb:205:in `render_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:44:in `render_partial'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/partials.rb:184:in `render_partial'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:267:in `render_without_active_scaffold'
app/views/categories/_form.html.erb:8
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_helper.rb:499:in `fields_for'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_helper.rb:282:in `form_for'
app/views/categories/_form.html.erb:1
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:306:in `with_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:30:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:20:in `render'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:30:in `benchmark'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:19:in `render'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/template.rb:205:in `render_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:44:in `render_partial'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/partials.rb:184:in `render_partial'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:267:in `render_without_active_scaffold'
app/views/categories/new.html.erb:4
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/capture_helper.rb:36:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/capture_helper.rb:36:in `capture'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/capture_helper.rb:129:in `with_output_buffer'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/capture_helper.rb:36:in `capture'
app/helpers/application_helper.rb:168:in `column_div'
app/views/categories/new.html.erb:1
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:306:in `with_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:30:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/template.rb:205:in `render_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:265:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:348:in `_render_with_layout'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:262:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:1252:in `render_for_file'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:942:in `render_without_benchmark'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:51:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:51:in `render_without_active_scaffold'
app/controllers/categories_controller.rb:62:in `create'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:135:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:135:in `custom'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:175:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:175:in `respond'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:173:in `each'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:173:in `respond'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:107:in `respond_to'
app/controllers/categories_controller.rb:56:in `create'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:1333:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:1333:in `perform_action_without_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:617:in `call_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:638:in `run_before_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:206:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:206:in `around_proc'
.bundle/gems/ruby/1.8/gems/activesupport-2.3.14/lib/active_support/callbacks.rb:182:in `call'
.bundle/gems/ruby/1.8/gems/activesupport-2.3.14/lib/active_support/callbacks.rb:182:in `evaluate_method'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:184:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:635:in `run_before_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:615:in `call_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/rescue.rb:160:in `perform_action_without_flash'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/flash.rb:151:in `perform_action_without_render_component'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:532:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:532:in `process_without_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:606:in `process'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:391:in `process'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:386:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/routing/route_set.rb:438:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:87:in `dispatch'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:121:in `_call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:29:in `call'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:29:in `call'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:9:in `cache'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:28:in `call'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/string_coercion.rb:25:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/params_parser.rb:15:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/session/cookie_store.rb:99:in `call'
.bundle/gems/ruby/1.8/gems/activesupport-2.3.14/lib/active_support/cache/strategy/local_cache.rb:25:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/failsafe.rb:26:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:106:in `call'
/home/heroku_rack/lib/static_assets.rb:9:in `call'
/home/heroku_rack/lib/last_access.rb:15:in `call'
/home/heroku_rack/lib/date_header.rb:14:in `call'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:76:in `pre_process'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:74:in `catch'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:74:in `pre_process'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:57:in `process'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:42:in `receive_data'
.bundle/gems/ruby/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
.bundle/gems/ruby/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/backends/base.rb:57:in `start'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/server.rb:156:in `start'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/controllers/controller.rb:80:in `start'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/runner.rb:177:in `send'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/runner.rb:177:in `run_command'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/runner.rb:143:in `run!'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/bin/thin:6
/usr/ruby1.8.7/bin/thin:19:in `load'
/usr/ruby1.8.7/bin/thin:19

-------------------------------
Request:
-------------------------------

* URL : http://www.time-exchange.gr/categories
* IP address: 85.72.194.209
* Parameters: {"category"=>{"name"=>"", "parent_id"=>"3"}, "commit"=>"Δημιουργία", "action"=>"create", "authenticity_token"=>"jZyqDQIuF3pttOJmqoLYJ234ooO1Yji69ch4N6QIToY=", "controller"=>"categories"}
* Rails root: /app

-------------------------------
Session:
-------------------------------

* session id: nil
* data: nil

-------------------------------
Environment:
-------------------------------

* CONTENT_LENGTH : 179
* CONTENT_TYPE : application/x-www-form-urlencoded
* GATEWAY_INTERFACE : CGI/1.2
* HTTP_ACCEPT : image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
* HTTP_ACCEPT_ENCODING : gzip, deflate
* HTTP_ACCEPT_LANGUAGE : el
* HTTP_CACHE_CONTROL : no-cache
* HTTP_CONNECTION : close
* HTTP_COOKIE : _oscurrency_session=BAh7CiIacGVyc29uX2NyZWRlbnRpYWxzX2lkaQIEAjoQX2NzcmZfdG9rZW4iMWpaeXFEUUl1RjNwdHRPSm1xb0xZSjIzNG9vTzFZamk2OWNoNE42UUlUb1k9Og9zZXNzaW9uX2lkIiU0OWE0Yzk4MTc3NTQwYzE5YzhjNGU2NTBjZjE4NGZlOSIXcGVyc29uX2NyZWRlbnRpYWxzIgGAOWRjM2Q3ZGYwZWI3YjA4Mjk1ZTAzMGY3MzRhM2EzNTdjOGZjNWFiY2IxYTNhMGM5MGUzZDdlY2NmYzNjY2RlNDQxMjBhMzY4OTM1ZjU3NGEzODM3NTMyMzEyMTBiMzBmYWEyM2YwZjcwY2I4ZTMxZjIyZmE2NzUwNWZkYjc2MDUiCmZsYXNoSUM6J0FjdGlvbkNvbnRyb2xsZXI6OkZsYXNoOjpGbGFzaEhhc2h7AAY6CkB1c2VkewA%3D--a238ca62683c06fbb137f6b60f5ea617c78aced7; person_credentials=9dc3d7df0eb7b08295e030f734a3a357c8fc5abcb1a3a0c90e3d7eccfc3ccde44120a368935f574a383753231210b30faa23f0f70cb8e31f22fa67505fdb7605%3A%3A516
* HTTP_HOST : www.time-exchange.gr
* HTTP_REFERER : http://www.time-exchange.gr/categories/new
* HTTP_USER_AGENT : Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB7.2)
* HTTP_VERSION : HTTP/1.0
* HTTP_X_FORWARDED_FOR : 85.72.194.209
* HTTP_X_HEROKU_DYNOS_IN_USE : 1
* HTTP_X_HEROKU_QUEUE_DEPTH : 0
* HTTP_X_HEROKU_QUEUE_WAIT_TIME : 1
* HTTP_X_REAL_IP : 85.72.194.209
* HTTP_X_REQUEST_START : 1325029057559
* PATH_INFO : /categories
* QUERY_STRING :
* REMOTE_ADDR : 10.104.43.187
* REQUEST_METHOD : POST
* REQUEST_PATH : /categories
* REQUEST_URI : /categories
* SCRIPT_NAME :
* SERVER_NAME : www.time-exchange.gr
* SERVER_PORT : 80
* SERVER_PROTOCOL : HTTP/1.1
* SERVER_SOFTWARE : thin 1.2.6 codename Crazy Delicious
* action_controller.request.path_parameters : actioncreatecontrollercategories
* action_controller.request.query_parameters :
* action_controller.request.request_parameters : commitΔημιουργίαcategorynameparent_id3authenticity_tokenjZyqDQIuF3pttOJmqoLYJ234ooO1Yji69ch4N6QIToY=
* action_controller.rescue.request : #
* action_controller.rescue.response : #
* action_dispatch.request.unsigned_session_cookie: person_credentials_id516_csrf_tokenjZyqDQIuF3pttOJmqoLYJ234ooO1Yji69ch4N6QIToY=session_id49a4c98177540c19c8c4e650cf184fe9flashperson_credentials9dc3d7df0eb7b08295e030f734a3a357c8fc5abcb1a3a0c90e3d7eccfc3ccde44120a368935f574a383753231210b30faa23f0f70cb8e31f22fa67505fdb7605
* async.callback : #
* async.close : #
* rack.errors : #
* rack.input : #
* rack.multiprocess : false
* rack.multithread : false
* rack.request.cookie_hash : _oscurrency_sessionBAh7CiIacGVyc29uX2NyZWRlbnRpYWxzX2lkaQIEAjoQX2NzcmZfdG9rZW4iMWpaeXFEUUl1RjNwdHRPSm1xb0xZSjIzNG9vTzFZamk2OWNoNE42UUlUb1k9Og9zZXNzaW9uX2lkIiU0OWE0Yzk4MTc3NTQwYzE5YzhjNGU2NTBjZjE4NGZlOSIXcGVyc29uX2NyZWRlbnRpYWxzIgGAOWRjM2Q3ZGYwZWI3YjA4Mjk1ZTAzMGY3MzRhM2EzNTdjOGZjNWFiY2IxYTNhMGM5MGUzZDdlY2NmYzNjY2RlNDQxMjBhMzY4OTM1ZjU3NGEzODM3NTMyMzEyMTBiMzBmYWEyM2YwZjcwY2I4ZTMxZjIyZmE2NzUwNWZkYjc2MDUiCmZsYXNoSUM6J0FjdGlvbkNvbnRyb2xsZXI6OkZsYXNoOjpGbGFzaEhhc2h7AAY6CkB1c2VkewA=--a238ca62683c06fbb137f6b60f5ea617c78aced7person_credentials9dc3d7df0eb7b08295e030f734a3a357c8fc5abcb1a3a0c90e3d7eccfc3ccde44120a368935f574a383753231210b30faa23f0f70cb8e31f22fa67505fdb7605::516
* rack.request.cookie_string : _oscurrency_session=BAh7CiIacGVyc29uX2NyZWRlbnRpYWxzX2lkaQIEAjoQX2NzcmZfdG9rZW4iMWpaeXFEUUl1RjNwdHRPSm1xb0xZSjIzNG9vTzFZamk2OWNoNE42UUlUb1k9Og9zZXNzaW9uX2lkIiU0OWE0Yzk4MTc3NTQwYzE5YzhjNGU2NTBjZjE4NGZlOSIXcGVyc29uX2NyZWRlbnRpYWxzIgGAOWRjM2Q3ZGYwZWI3YjA4Mjk1ZTAzMGY3MzRhM2EzNTdjOGZjNWFiY2IxYTNhMGM5MGUzZDdlY2NmYzNjY2RlNDQxMjBhMzY4OTM1ZjU3NGEzODM3NTMyMzEyMTBiMzBmYWEyM2YwZjcwY2I4ZTMxZjIyZmE2NzUwNWZkYjc2MDUiCmZsYXNoSUM6J0FjdGlvbkNvbnRyb2xsZXI6OkZsYXNoOjpGbGFzaEhhc2h7AAY6CkB1c2VkewA%3D--a238ca62683c06fbb137f6b60f5ea617c78aced7; person_credentials=9dc3d7df0eb7b08295e030f734a3a357c8fc5abcb1a3a0c90e3d7eccfc3ccde44120a368935f574a383753231210b30faa23f0f70cb8e31f22fa67505fdb7605%3A%3A516
* rack.request.form_hash : commitΔημιουργίαcategorynameparent_id3authenticity_tokenjZyqDQIuF3pttOJmqoLYJ234ooO1Yji69ch4N6QIToY=
* rack.request.form_input : #
* rack.request.form_vars : authenticity_token=jZyqDQIuF3pttOJmqoLYJ234ooO1Yji69ch4N6QIToY%3D&category%5Bname%5D=&category%5Bparent_id%5D=3&commit=%CE%94%CE%B7%CE%BC%CE%B9%CE%BF%CF%85%CF%81%CE%B3%CE%AF%CE%B1
* rack.request.query_hash :
* rack.request.query_string :
* rack.run_once : false
* rack.session : person_credentials_id516_csrf_tokenjZyqDQIuF3pttOJmqoLYJ234ooO1Yji69ch4N6QIToY=session_id49a4c98177540c19c8c4e650cf184fe9person_credentials9dc3d7df0eb7b08295e030f734a3a357c8fc5abcb1a3a0c90e3d7eccfc3ccde44120a368935f574a383753231210b30faa23f0f70cb8e31f22fa67505fdb7605flash
* rack.session.options : domainpath/expire_afterkey_session_idhttponlytrueid49a4c98177540c19c8c4e650cf184fe9
* rack.url_scheme : http
* rack.version : 10

* Process: 1
* Server : faa59155-ed93-48d6-a466-5b43dff3b1ec

-------------------------------
Backtrace:
-------------------------------

On line #2 of app/views/categories/_select_categories.html.erb

1: <%=
2: collection_select('category',
3: 'parent_id',
4: @all_categories,
5: :id,

.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_options_helper.rb:327:in `options_from_collection_for_select'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_options_helper.rb:543:in `to_collection_select_tag'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_options_helper.rb:162:in `collection_select'
app/views/categories/_select_categories.html.erb:2
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:306:in `with_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:30:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:20:in `render'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:30:in `benchmark'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:19:in `render'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/template.rb:205:in `render_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:44:in `render_partial'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/partials.rb:184:in `render_partial'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:267:in `render_without_active_scaffold'
app/views/categories/_form.html.erb:8
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_helper.rb:499:in `fields_for'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/form_helper.rb:282:in `form_for'
app/views/categories/_form.html.erb:1
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:306:in `with_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:30:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:20:in `render'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:30:in `benchmark'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:19:in `render'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/template.rb:205:in `render_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable_partial.rb:44:in `render_partial'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/partials.rb:184:in `render_partial'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:267:in `render_without_active_scaffold'
app/views/categories/new.html.erb:4
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/capture_helper.rb:36:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/capture_helper.rb:36:in `capture'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/capture_helper.rb:129:in `with_output_buffer'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/helpers/capture_helper.rb:36:in `capture'
app/helpers/application_helper.rb:168:in `column_div'
app/views/categories/new.html.erb:1
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:34:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:306:in `with_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/renderable.rb:30:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/template.rb:205:in `render_template'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:265:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:348:in `_render_with_layout'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_view/base.rb:262:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:1252:in `render_for_file'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:942:in `render_without_benchmark'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:51:in `render_without_active_scaffold'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:51:in `render_without_active_scaffold'
app/controllers/categories_controller.rb:62:in `create'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:135:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:135:in `custom'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:175:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:175:in `respond'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:173:in `each'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:173:in `respond'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/mime_responds.rb:107:in `respond_to'
app/controllers/categories_controller.rb:56:in `create'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:1333:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:1333:in `perform_action_without_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:617:in `call_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:638:in `run_before_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:206:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:206:in `around_proc'
.bundle/gems/ruby/1.8/gems/activesupport-2.3.14/lib/active_support/callbacks.rb:182:in `call'
.bundle/gems/ruby/1.8/gems/activesupport-2.3.14/lib/active_support/callbacks.rb:182:in `evaluate_method'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:184:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:635:in `run_before_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:615:in `call_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/rescue.rb:160:in `perform_action_without_flash'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/flash.rb:151:in `perform_action_without_render_component'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:532:in `send'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:532:in `process_without_filters'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/filters.rb:606:in `process'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:391:in `process'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/base.rb:386:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/routing/route_set.rb:438:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:87:in `dispatch'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:121:in `_call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:29:in `call'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:29:in `call'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:9:in `cache'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:28:in `call'
.bundle/gems/ruby/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/string_coercion.rb:25:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/params_parser.rb:15:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/session/cookie_store.rb:99:in `call'
.bundle/gems/ruby/1.8/gems/activesupport-2.3.14/lib/active_support/cache/strategy/local_cache.rb:25:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/failsafe.rb:26:in `call'
.bundle/gems/ruby/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:106:in `call'
/home/heroku_rack/lib/static_assets.rb:9:in `call'
/home/heroku_rack/lib/last_access.rb:15:in `call'
/home/heroku_rack/lib/date_header.rb:14:in `call'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:76:in `pre_process'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:74:in `catch'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:74:in `pre_process'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:57:in `process'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/connection.rb:42:in `receive_data'
.bundle/gems/ruby/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
.bundle/gems/ruby/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/backends/base.rb:57:in `start'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/server.rb:156:in `start'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/controllers/controller.rb:80:in `start'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/runner.rb:177:in `send'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/runner.rb:177:in `run_command'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/lib/thin/runner.rb:143:in `run!'
/usr/ruby1.8.7/lib/ruby/gems/1.8/gems/thin-1.2.6/bin/thin:6
/usr/ruby1.8.7/bin/thin:19:in `load'
/usr/ruby1.8.7/bin/thin:19
```