Update active_record instantiated_hash to default to {} instead of nil #23

merged 2 commits into from Jan 30, 2013


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I started getting this on image requests where ActiveRecord is not loaded.

NoMethodError (undefined method sort' for nil:NilClass):
oink (0.10.0) lib/oink/utils/hash_utils.rb:5:into_sorted_array'
oink (0.10.0) lib/oink/middleware.rb:48:in log_activerecord'
oink (0.10.0) lib/oink/middleware.rb:21:incall'
warden (1.2.1) lib/warden/manager.rb:35:in block in call'
warden (1.2.1) lib/warden/manager.rb:34:incatch'
warden (1.2.1) lib/warden/manager.rb:34:in call'
actionpack (3.2.1) lib/action_dispatch/middleware/best_standards_support.rb:17:incall'
rack (1.4.1) lib/rack/etag.rb:23:in call'
rack (1.4.1) lib/rack/conditionalget.rb:25:incall'
actionpack (3.2.1) lib/action_dispatch/middleware/head.rb:14:in call'
remotipart (1.0.2) lib/remotipart/middleware.rb:30:incall'
actionpack (3.2.1) lib/action_dispatch/middleware/params_parser.rb:21:in call'
actionpack (3.2.1) lib/action_dispatch/middleware/flash.rb:242:incall'
rack (1.4.1) lib/rack/session/abstract/id.rb:205:in context'
rack (1.4.1) lib/rack/session/abstract/id.rb:200:incall'
rack-p3p (0.5.0) lib/rack-p3p.rb:11:in call'
actionpack (3.2.1) lib/action_dispatch/middleware/cookies.rb:338:incall'
activerecord (3.2.1) lib/active_record/query_cache.rb:64:in call'
activerecord (3.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:443:incall'
actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:28:in block in call'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in_run__4079966539919658034__call__3128255809264830011__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in __run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in_run_call_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in run_callbacks'
actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:27:incall'
actionpack (3.2.1) lib/action_dispatch/middleware/reloader.rb:65:in call'
actionpack (3.2.1) lib/action_dispatch/middleware/remote_ip.rb:31:incall'
actionpack (3.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:16:in call'
actionpack (3.2.1) lib/action_dispatch/middleware/show_exceptions.rb:56:incall'
railties (3.2.1) lib/rails/rack/logger.rb:26:in call_app'
railties (3.2.1) lib/rails/rack/logger.rb:16:incall'
actionpack (3.2.1) lib/action_dispatch/middleware/request_id.rb:22:in call'
rack (1.4.1) lib/rack/methodoverride.rb:21:incall'
rack (1.4.1) lib/rack/runtime.rb:17:in call'
activesupport (3.2.1) lib/active_support/cache/strategy/local_cache.rb:72:incall'
rack (1.4.1) lib/rack/lock.rb:15:in call'
railties (3.2.1) lib/rails/engine.rb:479:incall'
railties (3.2.1) lib/rails/application.rb:220:in call'
railties (3.2.1) lib/rails/railtie/configurable.rb:30:inmethod_missing'
rack (1.4.1) lib/rack/deflater.rb:13:in call'
rack (1.4.1) lib/rack/content_length.rb:14:incall'
railties (3.2.1) lib/rails/rack/log_tailer.rb:14:in call'
rack (1.4.1) lib/rack/handler/webrick.rb:59:inservice'
/Users/gabe/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/webrick/httpserver.rb:138:in service'
/Users/gabe/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'


noahd1 commented Jan 4, 2013

Hi Gabe:

Looks valuable, but is there a way to reproduce this behavior in a test? It looks like instantiated_hash only gets set when something is actually instantiated...so it seems like it would be a problem, though looking at the tests, seems like that case is covered and green.

  • Noah

yyyc514 commented Jan 28, 2013

Please commit this.

Try: rspec ./spec/oink/middleware_spec.rb

Running the single test it does fail... I bet they only pass in aggregate because your previous tests are changing the behavior of later tests (likely by using AR and resulting in the hash being setup already).

yyyc514 commented Jan 28, 2013

You can work around this for now by putting this in the same initializer you use to setup your middlewarE:


yyyc514 commented Jan 28, 2013

Actually that seems to work for pow, but not rackup... different threads?

noahd1 added a commit that referenced this pull request Jan 30, 2013

Merge pull request #23 from gabecoyne/master
Update active_record instantiated_hash to default to {} instead of nil

@noahd1 noahd1 merged commit 7cdd0f1 into noahd1:master Jan 30, 2013


noahd1 commented Jan 30, 2013

Thanks for the help reproducing it. I merged it - thought I don't know offhand what the difference would be between pow and rackup.

yyyc514 commented Jan 30, 2013

No idea. I found another hack that worked for both, just monkey patching the entire log_activerecord routine to inject the ||= there, but it's major ugly.

When can we get a new gem pushed?


noahd1 commented Jan 30, 2013

Ready to push, now just waiting on rubygems:



noahd1 commented Feb 6, 2013

Finally pushed now that rubygems is back up.

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