put this

comment.try(:created_at)

and tel me what happens

i want to see if it really is nil

On Sun, Sep 12, 2010 at 7:23 AM, Andreas Schmidt
<[email protected]>wrote:

> Hello radhmes brito,
>
> here both traces for the errors.
>
> For comment.created_at.strftime("%Y.%m.%d"):
>
> undefined method `strftime' for nil:NilClass
> activesupport (3.0.0) lib/active_support/whiny_nil.rb:48:in
> `method_missing'
> app/views/products/show.html.erb:64:in
> `_app_views_products_show_html_erb___1342911154_2182912460_0'
> activerecord (3.0.0) lib/active_record/associations/
> association_collection.rb:430:in `method_missing'
> activerecord (3.0.0) lib/active_record/associations/
> association_proxy.rb:216:in `method_missing'
> activerecord (3.0.0) lib/active_record/associations/
> association_proxy.rb:216:in `each'
> activerecord (3.0.0) lib/active_record/associations/
> association_proxy.rb:216:in `send'
> activerecord (3.0.0) lib/active_record/associations/
> association_proxy.rb:216:in `method_missing'
> activerecord (3.0.0) lib/active_record/associations/
> association_collection.rb:430:in `method_missing'
> app/views/products/show.html.erb:62:in
> `_app_views_products_show_html_erb___1342911154_2182912460_0'
> actionpack (3.0.0) lib/action_view/template.rb:135:in `send'
> actionpack (3.0.0) lib/action_view/template.rb:135:in `render'
> activesupport (3.0.0) lib/active_support/notifications.rb:54:in
> `instrument'
> actionpack (3.0.0) lib/action_view/template.rb:127:in `render'
> actionpack (3.0.0) lib/action_view/render/rendering.rb:59:in
> `_render_template'
> activesupport (3.0.0) lib/active_support/notifications.rb:52:in
> `instrument'
> activesupport (3.0.0) lib/active_support/notifications/instrumenter.rb:
> 21:in `instrument'
> activesupport (3.0.0) lib/active_support/notifications.rb:52:in
> `instrument'
> actionpack (3.0.0) lib/action_view/render/rendering.rb:56:in
> `_render_template'
> actionpack (3.0.0) lib/action_view/render/rendering.rb:26:in `render'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:114:in
> `_render_template'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:108:in
> `render_to_body'
> actionpack (3.0.0) lib/action_controller/metal/renderers.rb:47:in
> `render_to_body'
> actionpack (3.0.0) lib/action_controller/metal/compatibility.rb:55:in
> `render_to_body'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:101:in
> `render_to_string'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:92:in `render'
> actionpack (3.0.0) lib/action_controller/metal/rendering.rb:17:in
> `render'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 40:in `render_without_meta_tags'
> activesupport (3.0.0) lib/active_support/core_ext/benchmark.rb:5:in
> `ms'
> /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
> 1.8/benchmark.rb:308:in `realtime'
> activesupport (3.0.0) lib/active_support/core_ext/benchmark.rb:5:in
> `ms'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 40:in `render_without_meta_tags'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 78:in `cleanup_view_runtime'
> activerecord (3.0.0) lib/active_record/railties/controller_runtime.rb:
> 15:in `cleanup_view_runtime'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 39:in `render_without_meta_tags'
> vendor/plugins/meta-tags/lib/meta_tags/controller_helper.rb:28:in
> `render'
> actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:
> 10:in `default_render'
> actionpack (3.0.0) lib/action_controller/metal/mime_responds.rb:261:in
> `retrieve_response_from_mimes'
> actionpack (3.0.0) lib/action_controller/metal/mime_responds.rb:192:in
> `call'
> actionpack (3.0.0) lib/action_controller/metal/mime_responds.rb:192:in
> `respond_to'
> app/controllers/products_controller.rb:20:in `show'
> actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:4:in
> `send_action'
> actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:4:in
> `send_action'
> actionpack (3.0.0) lib/abstract_controller/base.rb:150:in
> `process_action'
> actionpack (3.0.0) lib/action_controller/metal/rendering.rb:11:in
> `process_action'
> actionpack (3.0.0) lib/abstract_controller/callbacks.rb:18:in
> `process_action'
> activesupport (3.0.0) lib/active_support/callbacks.rb:440:in
> `_run__1118320962__process_action__453433196__callbacks'
> activesupport (3.0.0) lib/active_support/callbacks.rb:409:in `send'
> activesupport (3.0.0) lib/active_support/callbacks.rb:409:in
> `_run_process_action_callbacks'
> activesupport (3.0.0) lib/active_support/callbacks.rb:93:in `send'
> activesupport (3.0.0) lib/active_support/callbacks.rb:93:in
> `run_callbacks'
> actionpack (3.0.0) lib/abstract_controller/callbacks.rb:17:in
> `process_action'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 30:in `process_action'
> activesupport (3.0.0) lib/active_support/notifications.rb:52:in
> `instrument'
> activesupport (3.0.0) lib/active_support/notifications/instrumenter.rb:
> 21:in `instrument'
> activesupport (3.0.0) lib/active_support/notifications.rb:52:in
> `instrument'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 29:in `process_action'
> actionpack (3.0.0) lib/action_controller/metal/rescue.rb:17:in
> `process_action'
> actionpack (3.0.0) lib/abstract_controller/base.rb:119:in `process'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:40:in
> `process'
> actionpack (3.0.0) lib/action_controller/metal.rb:133:in `dispatch'
> actionpack (3.0.0) lib/action_controller/metal/rack_delegation.rb:
> 14:in `dispatch'
> actionpack (3.0.0) lib/action_controller/metal.rb:173:in `action'
> actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:in
> `call'
> actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:in
> `dispatch'
> actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:27:in
> `call'
> rack-mount (0.6.13) lib/rack/mount/route_set.rb:148:in `call'
> rack-mount (0.6.13) lib/rack/mount/code_generation.rb:93:in
> `recognize'
> rack-mount (0.6.13) lib/rack/mount/code_generation.rb:68:in
> `optimized_each'
> rack-mount (0.6.13) lib/rack/mount/code_generation.rb:92:in
> `recognize'
> rack-mount (0.6.13) lib/rack/mount/route_set.rb:139:in `call'
> actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:492:in
> `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/
> best_standards_support.rb:17:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/head.rb:14:in `call'
> rack (1.2.1) lib/rack/methodoverride.rb:24:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/params_parser.rb:
> 21:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/flash.rb:182:in
> `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/session/
> abstract_store.rb:149:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/cookies.rb:287:in
> `call'
> activerecord (3.0.0) lib/active_record/query_cache.rb:32:in `call'
> activerecord (3.0.0) lib/active_record/connection_adapters/abstract/
> query_cache.rb:28:in `cache'
> activerecord (3.0.0) lib/active_record/query_cache.rb:12:in `cache'
> activerecord (3.0.0) lib/active_record/query_cache.rb:31:in `call'
> activerecord (3.0.0) lib/active_record/connection_adapters/abstract/
> connection_pool.rb:355:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:46:in
> `call'
> activesupport (3.0.0) lib/active_support/callbacks.rb:415:in
> `_run_call_callbacks'
> actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:44:in
> `call'
> rack (1.2.1) lib/rack/sendfile.rb:107:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/remote_ip.rb:48:in
> `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/show_exceptions.rb:
> 46:in `call'
> railties (3.0.0) lib/rails/rack/logger.rb:13:in `call'
> rack (1.2.1) lib/rack/runtime.rb:17:in `call'
> rack (1.2.1) lib/rack/lock.rb:11:in `call'
> rack (1.2.1) lib/rack/lock.rb:11:in `synchronize'
> rack (1.2.1) lib/rack/lock.rb:11:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/static.rb:30:in
> `call'
> railties (3.0.0) lib/rails/application.rb:168:in `call'
> railties (3.0.0) lib/rails/application.rb:77:in `send'
> railties (3.0.0) lib/rails/application.rb:77:in `method_missing'
> passenger (2.2.15) lib/phusion_passenger/rack/request_handler.rb:92:in
> `process_request'
> passenger (2.2.15) lib/phusion_passenger/abstract_request_handler.rb:
> 207:in `main_loop'
> passenger (2.2.15) lib/phusion_passenger/rack/application_spawner.rb:
> 120:in `run'
> passenger (2.2.15) lib/phusion_passenger/rack/application_spawner.rb:
> 65:in `spawn_application'
> passenger (2.2.15) lib/phusion_passenger/utils.rb:252:in `safe_fork'
> passenger (2.2.15) lib/phusion_passenger/rack/application_spawner.rb:
> 58:in `spawn_application'
> passenger (2.2.15) lib/phusion_passenger/rack/application_spawner.rb:
> 41:in `spawn_application'
> passenger (2.2.15) lib/phusion_passenger/spawn_manager.rb:150:in
> `spawn_application'
> passenger (2.2.15) lib/phusion_passenger/spawn_manager.rb:278:in
> `handle_spawn_application'
> passenger (2.2.15) lib/phusion_passenger/abstract_server.rb:352:in
> `__send__'
> passenger (2.2.15) lib/phusion_passenger/abstract_server.rb:352:in
> `main_loop'
> passenger (2.2.15) lib/phusion_passenger/abstract_server.rb:196:in
> `start_synchronously'
> passenger (2.2.15) bin/passenger-spawn-server:61
>
> For comment.created_at.to_s(:mydate):
> wrong number of arguments (1 for 0)
>
> app/views/products/show.html.erb:64:in `to_s'
> app/views/products/show.html.erb:64:in
> `_app_views_products_show_html_erb___1342911154_2182214980_0'
> activerecord (3.0.0) lib/active_record/associations/
> association_collection.rb:430:in `method_missing'
> activerecord (3.0.0) lib/active_record/associations/
> association_proxy.rb:216:in `method_missing'
> activerecord (3.0.0) lib/active_record/associations/
> association_proxy.rb:216:in `each'
> activerecord (3.0.0) lib/active_record/associations/
> association_proxy.rb:216:in `send'
> activerecord (3.0.0) lib/active_record/associations/
> association_proxy.rb:216:in `method_missing'
> activerecord (3.0.0) lib/active_record/associations/
> association_collection.rb:430:in `method_missing'
> app/views/products/show.html.erb:62:in
> `_app_views_products_show_html_erb___1342911154_2182214980_0'
> actionpack (3.0.0) lib/action_view/template.rb:135:in `send'
> actionpack (3.0.0) lib/action_view/template.rb:135:in `render'
> activesupport (3.0.0) lib/active_support/notifications.rb:54:in
> `instrument'
> actionpack (3.0.0) lib/action_view/template.rb:127:in `render'
> actionpack (3.0.0) lib/action_view/render/rendering.rb:59:in
> `_render_template'
> activesupport (3.0.0) lib/active_support/notifications.rb:52:in
> `instrument'
> activesupport (3.0.0) lib/active_support/notifications/instrumenter.rb:
> 21:in `instrument'
> activesupport (3.0.0) lib/active_support/notifications.rb:52:in
> `instrument'
> actionpack (3.0.0) lib/action_view/render/rendering.rb:56:in
> `_render_template'
> actionpack (3.0.0) lib/action_view/render/rendering.rb:26:in `render'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:114:in
> `_render_template'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:108:in
> `render_to_body'
> actionpack (3.0.0) lib/action_controller/metal/renderers.rb:47:in
> `render_to_body'
> actionpack (3.0.0) lib/action_controller/metal/compatibility.rb:55:in
> `render_to_body'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:101:in
> `render_to_string'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:92:in `render'
> actionpack (3.0.0) lib/action_controller/metal/rendering.rb:17:in
> `render'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 40:in `render_without_meta_tags'
> activesupport (3.0.0) lib/active_support/core_ext/benchmark.rb:5:in
> `ms'
> /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
> 1.8/benchmark.rb:308:in `realtime'
> activesupport (3.0.0) lib/active_support/core_ext/benchmark.rb:5:in
> `ms'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 40:in `render_without_meta_tags'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 78:in `cleanup_view_runtime'
> activerecord (3.0.0) lib/active_record/railties/controller_runtime.rb:
> 15:in `cleanup_view_runtime'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 39:in `render_without_meta_tags'
> vendor/plugins/meta-tags/lib/meta_tags/controller_helper.rb:28:in
> `render'
> actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:
> 10:in `default_render'
> actionpack (3.0.0) lib/action_controller/metal/mime_responds.rb:261:in
> `retrieve_response_from_mimes'
> actionpack (3.0.0) lib/action_controller/metal/mime_responds.rb:192:in
> `call'
> actionpack (3.0.0) lib/action_controller/metal/mime_responds.rb:192:in
> `respond_to'
> app/controllers/products_controller.rb:20:in `show'
> actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:4:in
> `send_action'
> actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:4:in
> `send_action'
> actionpack (3.0.0) lib/abstract_controller/base.rb:150:in
> `process_action'
> actionpack (3.0.0) lib/action_controller/metal/rendering.rb:11:in
> `process_action'
> actionpack (3.0.0) lib/abstract_controller/callbacks.rb:18:in
> `process_action'
> activesupport (3.0.0) lib/active_support/callbacks.rb:440:in
> `_run__1118320962__process_action__453433196__callbacks'
> activesupport (3.0.0) lib/active_support/callbacks.rb:409:in `send'
> activesupport (3.0.0) lib/active_support/callbacks.rb:409:in
> `_run_process_action_callbacks'
> activesupport (3.0.0) lib/active_support/callbacks.rb:93:in `send'
> activesupport (3.0.0) lib/active_support/callbacks.rb:93:in
> `run_callbacks'
> actionpack (3.0.0) lib/abstract_controller/callbacks.rb:17:in
> `process_action'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 30:in `process_action'
> activesupport (3.0.0) lib/active_support/notifications.rb:52:in
> `instrument'
> activesupport (3.0.0) lib/active_support/notifications/instrumenter.rb:
> 21:in `instrument'
> activesupport (3.0.0) lib/active_support/notifications.rb:52:in
> `instrument'
> actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:
> 29:in `process_action'
> actionpack (3.0.0) lib/action_controller/metal/rescue.rb:17:in
> `process_action'
> actionpack (3.0.0) lib/abstract_controller/base.rb:119:in `process'
> actionpack (3.0.0) lib/abstract_controller/rendering.rb:40:in
> `process'
> actionpack (3.0.0) lib/action_controller/metal.rb:133:in `dispatch'
> actionpack (3.0.0) lib/action_controller/metal/rack_delegation.rb:
> 14:in `dispatch'
> actionpack (3.0.0) lib/action_controller/metal.rb:173:in `action'
> actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:in
> `call'
> actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:in
> `dispatch'
> actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:27:in
> `call'
> rack-mount (0.6.13) lib/rack/mount/route_set.rb:148:in `call'
> rack-mount (0.6.13) lib/rack/mount/code_generation.rb:93:in
> `recognize'
> rack-mount (0.6.13) lib/rack/mount/code_generation.rb:68:in
> `optimized_each'
> rack-mount (0.6.13) lib/rack/mount/code_generation.rb:92:in
> `recognize'
> rack-mount (0.6.13) lib/rack/mount/route_set.rb:139:in `call'
> actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:492:in
> `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/
> best_standards_support.rb:17:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/head.rb:14:in `call'
> rack (1.2.1) lib/rack/methodoverride.rb:24:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/params_parser.rb:
> 21:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/flash.rb:182:in
> `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/session/
> abstract_store.rb:149:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/cookies.rb:287:in
> `call'
> activerecord (3.0.0) lib/active_record/query_cache.rb:32:in `call'
> activerecord (3.0.0) lib/active_record/connection_adapters/abstract/
> query_cache.rb:28:in `cache'
> activerecord (3.0.0) lib/active_record/query_cache.rb:12:in `cache'
> activerecord (3.0.0) lib/active_record/query_cache.rb:31:in `call'
> activerecord (3.0.0) lib/active_record/connection_adapters/abstract/
> connection_pool.rb:355:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:46:in
> `call'
> activesupport (3.0.0) lib/active_support/callbacks.rb:415:in
> `_run_call_callbacks'
> actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:44:in
> `call'
> rack (1.2.1) lib/rack/sendfile.rb:107:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/remote_ip.rb:48:in
> `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/show_exceptions.rb:
> 46:in `call'
> railties (3.0.0) lib/rails/rack/logger.rb:13:in `call'
> rack (1.2.1) lib/rack/runtime.rb:17:in `call'
> rack (1.2.1) lib/rack/lock.rb:11:in `call'
> rack (1.2.1) lib/rack/lock.rb:11:in `synchronize'
> rack (1.2.1) lib/rack/lock.rb:11:in `call'
> actionpack (3.0.0) lib/action_dispatch/middleware/static.rb:30:in
> `call'
> railties (3.0.0) lib/rails/application.rb:168:in `call'
> railties (3.0.0) lib/rails/application.rb:77:in `send'
> railties (3.0.0) lib/rails/application.rb:77:in `method_missing'
> passenger (2.2.15) lib/phusion_passenger/rack/request_handler.rb:92:in
> `process_request'
> passenger (2.2.15) lib/phusion_passenger/abstract_request_handler.rb:
> 207:in `main_loop'
> passenger (2.2.15) lib/phusion_passenger/rack/application_spawner.rb:
> 120:in `run'
> passenger (2.2.15) lib/phusion_passenger/rack/application_spawner.rb:
> 65:in `spawn_application'
> passenger (2.2.15) lib/phusion_passenger/utils.rb:252:in `safe_fork'
> passenger (2.2.15) lib/phusion_passenger/rack/application_spawner.rb:
> 58:in `spawn_application'
> passenger (2.2.15) lib/phusion_passenger/rack/application_spawner.rb:
> 41:in `spawn_application'
> passenger (2.2.15) lib/phusion_passenger/spawn_manager.rb:150:in
> `spawn_application'
> passenger (2.2.15) lib/phusion_passenger/spawn_manager.rb:278:in
> `handle_spawn_application'
> passenger (2.2.15) lib/phusion_passenger/abstract_server.rb:352:in
> `__send__'
> passenger (2.2.15) lib/phusion_passenger/abstract_server.rb:352:in
> `main_loop'
> passenger (2.2.15) lib/phusion_passenger/abstract_server.rb:196:in
> `start_synchronously'
> passenger (2.2.15) bin/passenger-spawn-server:61
>
> Hope this helps?
>
>
>
>
> --
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