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下面是我的服务器日志失败，上传文件，500内部服务器错误的轨道
Started POST "/networktool/report/b842dc1f9652dbe" for 127.0.0.1 at 2014-02-18 13:00:06 +0000
Processing by NetworkToolController#report as */*
Parameters: {"1.txt"=>#<ActionDispatch::Http::UploadedFile:0x0000000adf7dc0 @original_filename="1.txt", @content_type="text/plain", @headers="Content-Disposition: form-data; name=\"1.txt\"; filename=\"1.txt\"\r\nContent-Type: text/plain\r\n", @tempfile=#<File:/tmp/RackMultipart20140218-31778-nxbkfj>>, "house_secret"=>"b842dc1f9652dbe1"}
(0.1ms) BEGIN
(0.1ms) ROLLBACK
Completed 500 Internal Server Error in 12ms
NoMethodError - undefined method `name' for nil:NilClass:
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:26:in `block in initialize'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:28:in `block in initialize'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:28:in `block in initialize'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:28:in `block in initialize'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:28:in `block in initialize'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:103:in `accept'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:449:in `block in dump_ivars'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:447:in `dump_ivars'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:125:in `visit_Object'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:103:in `accept'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:293:in `block in visit_Hash'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:291:in `visit_Hash'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:103:in `accept'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:67:in `push'
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych.rb:242:in `dump'
activerecord (3.1.10) lib/active_record/connection_adapters/abstract/quoting.rb:38:in `quote'
activerecord (3.1.10) lib/active_record/connection_adapters/mysql2_adapter.rb:172:in `quote'
activerecord (3.1.10) lib/active_record/connection_adapters/abstract/database_statements.rb:10:in `block in to_sql'
arel (2.2.3) lib/arel/visitors/bind_visitor.rb:17:in `visit_Arel_Nodes_BindParam'
arel (2.2.3) lib/arel/visitors/visitor.rb:19:in `visit'
arel (2.2.3) lib/arel/visitors/to_sql.rb:119:in `block in visit_Arel_Nodes_Values'
arel (2.2.3) lib/arel/visitors/to_sql.rb:117:in `visit_Arel_Nodes_Values'
arel (2.2.3) lib/arel/visitors/visitor.rb:19:in `visit'
arel (2.2.3) lib/arel/visitors/to_sql.rb:82:in `visit_Arel_Nodes_InsertStatement'
arel (2.2.3) lib/arel/visitors/visitor.rb:19:in `visit'
arel (2.2.3) lib/arel/visitors/visitor.rb:5:in `accept'
arel (2.2.3) lib/arel/visitors/to_sql.rb:18:in `block in accept'
activerecord (3.1.10) lib/active_record/connection_adapters/abstract/connection_pool.rb:185:in `with_connection'
arel (2.2.3) lib/arel/visitors/to_sql.rb:16:in `accept'
arel (2.2.3) lib/arel/visitors/bind_visitor.rb:11:in `accept'
activerecord (3.1.10) lib/active_record/connection_adapters/abstract/database_statements.rb:9:in `to_sql'
activerecord (3.1.10) lib/active_record/connection_adapters/abstract/database_statements.rb:91:in `insert'
activerecord (3.1.10) lib/active_record/connection_adapters/abstract/query_cache.rb:14:in `insert'
activerecord (3.1.10) lib/active_record/relation.rb:70:in `insert'
activerecord (3.1.10) lib/active_record/persistence.rb:313:in `create'
activerecord (3.1.10) lib/active_record/timestamp.rb:51:in `create'
activerecord (3.1.10) lib/active_record/callbacks.rb:268:in `block in create'
activesupport (3.1.10) lib/active_support/callbacks.rb:390:in `_run_create_callbacks'
activesupport (3.1.10) lib/active_support/callbacks.rb:81:in `run_callbacks'
activerecord (3.1.10) lib/active_record/callbacks.rb:268:in `create'
activerecord (3.1.10) lib/active_record/persistence.rb:294:in `create_or_update'
activerecord (3.1.10) lib/active_record/callbacks.rb:264:in `block in create_or_update'
activesupport (3.1.10) lib/active_support/callbacks.rb:408:in `_run_save_callbacks'
activesupport (3.1.10) lib/active_support/callbacks.rb:81:in `run_callbacks'
activerecord (3.1.10) lib/active_record/callbacks.rb:264:in `create_or_update'
activerecord (3.1.10) lib/active_record/persistence.rb:37:in `save'
activerecord (3.1.10) lib/active_record/validations.rb:50:in `save'
activerecord (3.1.10) lib/active_record/attribute_methods/dirty.rb:22:in `save'
activerecord (3.1.10) lib/active_record/transactions.rb:241:in `block (2 levels) in save'
activerecord (3.1.10) lib/active_record/transactions.rb:295:in `block in with_transaction_returning_status'
activerecord (3.1.10) lib/active_record/connection_adapters/abstract/database_statements.rb:194:in `transaction'
activerecord (3.1.10) lib/active_record/transactions.rb:208:in `transaction'
activerecord (3.1.10) lib/active_record/transactions.rb:293:in `with_transaction_returning_status'
activerecord (3.1.10) lib/active_record/transactions.rb:241:in `block in save'
activerecord (3.1.10) lib/active_record/transactions.rb:252:in `rollback_active_record_state!'
activerecord (3.1.10) lib/active_record/transactions.rb:240:in `save'
activerecord (3.1.10) lib/active_record/base.rb:510:in `create'
() usr/local/rvm/gems/ruby-1.9.3-p392/bundler/gems/saw-d87445908ea8/lib/saw/controller.rb:40:in `saw'
app/controllers/application_controller.rb:20:in `track_changes'
activesupport (3.1.10) lib/active_support/callbacks.rb:421:in `_run__153947068513133338__process_action__1911104675666003671__callbacks'
activesupport (3.1.10) lib/active_support/callbacks.rb:386:in `_run_process_action_callbacks'
activesupport (3.1.10) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.1.10) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.1.10) lib/action_controller/metal/rescue.rb:17:in `process_action'
actionpack (3.1.10) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.1.10) lib/active_support/notifications.rb:53:in `block in instrument'
activesupport (3.1.10) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.1.10) lib/active_support/notifications.rb:53:in `instrument'
actionpack (3.1.10) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.1.10) lib/action_controller/metal/params_wrapper.rb:201:in `process_action'
activerecord (3.1.10) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.1.10) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.1.10) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.1.10) lib/action_controller/metal.rb:193:in `dispatch'
actionpack (3.1.10) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.1.10) lib/action_controller/metal.rb:236:in `block in action'
actionpack (3.1.10) lib/action_dispatch/routing/route_set.rb:71:in `dispatch'
actionpack (3.1.10) lib/action_dispatch/routing/route_set.rb:35:in `call'
rack-mount (0.8.3) lib/rack/mount/route_set.rb:152:in `block in call'
rack-mount (0.8.3) lib/rack/mount/code_generation.rb:96:in `block in recognize'
rack-mount (0.8.3) lib/rack/mount/code_generation.rb:75:in `optimized_each'
rack-mount (0.8.3) lib/rack/mount/code_generation.rb:95:in `recognize'
rack-mount (0.8.3) lib/rack/mount/route_set.rb:141:in `call'
actionpack (3.1.10) lib/action_dispatch/routing/route_set.rb:538:in `call'
better_errors (1.1.0) lib/better_errors/middleware.rb:84:in `protected_app_call'
better_errors (1.1.0) lib/better_errors/middleware.rb:79:in `better_errors_call'
better_errors (1.1.0) lib/better_errors/middleware.rb:56:in `call'
meta_request (0.2.8) lib/meta_request/middlewares/app_request_handler.rb:13:in `call'
rack-contrib (1.1.0) lib/rack/contrib/response_headers.rb:17:in `call'
meta_request (0.2.8) lib/meta_request/middlewares/headers.rb:16:in `call'
meta_request (0.2.8) lib/meta_request/middlewares/meta_request_handler.rb:13:in `call'
meta_request (0.2.8) lib/meta_request/middlewares/request_id.rb:24:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.3.10) lib/rack/etag.rb:23:in `call'
rack (1.3.10) lib/rack/conditionalget.rb:35:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/flash.rb:243:in `call'
rack (1.3.10) lib/rack/session/abstract/id.rb:195:in `context'
rack (1.3.10) lib/rack/session/abstract/id.rb:190:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/cookies.rb:331:in `call'
activerecord (3.1.10) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.1.10) lib/active_record/connection_adapters/abstract/connection_pool.rb:477:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (3.1.10) lib/active_support/callbacks.rb:392:in `_run_call_callbacks'
activesupport (3.1.10) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.1.10) lib/action_dispatch/middleware/callbacks.rb:28:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/reloader.rb:68:in `call'
rack (1.3.10) lib/rack/sendfile.rb:101:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
airbrake (3.1.15) lib/airbrake/rails/middleware.rb:13:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call'
railties (3.1.10) lib/rails/rack/logger.rb:13:in `call'
rack (1.3.10) lib/rack/methodoverride.rb:24:in `call'
rack (1.3.10) lib/rack/runtime.rb:17:in `call'
activesupport (3.1.10) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.3.10) lib/rack/lock.rb:15:in `call'
actionpack (3.1.10) lib/action_dispatch/middleware/static.rb:61:in `call'
airbrake (3.1.15) lib/airbrake/user_informer.rb:16:in `_call'
airbrake (3.1.15) lib/airbrake/user_informer.rb:12:in `call'
railties (3.1.10) lib/rails/engine.rb:456:in `call'
railties (3.1.10) lib/rails/application.rb:143:in `call'
railties (3.1.10) lib/rails/railtie/configurable.rb:30:in `method_missing'
puma (2.7.1) lib/puma/rack_patch.rb:13:in `call'
sinatra (1.3.3) lib/sinatra/base.rb:136:in `call'
puma (2.7.1) lib/puma/configuration.rb:68:in `call'
puma (2.7.1) lib/puma/server.rb:486:in `handle_request'
puma (2.7.1) lib/puma/server.rb:357:in `process_client'
puma (2.7.1) lib/puma/server.rb:250:in `block in run'
puma (2.7.1) lib/puma/thread_pool.rb:92:in `block in spawn_thread'
我想从我的其他的Python代码发送一个文件到Rails的Web服务。 从日志起码我可以说，控制甚至没有达到控制器的行为。我尝试在控制器操作中打印几条日志消息，但这些消息并未吐出。
有何评论？我在哪里犯错？
看来你的'config/database.yml'有罪 – bjhaid
需要看到更多涉及的代码。从日志中可以看出它确实触发了你的控制器动作，但是在一个对象上调用了一个“name”属性，它并不期望是无效的 –