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config.load_paths and namespace issue
Reported by Jesse House | May 31st, 2010 @ 11:44 PM
If I create a directory called jobs at /app/jobs
then add a ruby class Jobs::Bar (/app/jobs/bar.rb)
instantiating this object while running under 'rails server' fails
with "NameError: uninitialized constant Jobs"
and in 'rails console' it fails with the same error but can then be
loaded (see below console session)
using rvm
running ruby-1.9.1-p378 [ i386 ]
Rails 3.0.0.beta3
the below works fine in rails 2.2.2 and ruby 1.8.7
# /config/application.rb
config.load_paths += %W( #{config.root}/app/jobs )
# /app/jobs/bar.rb
module Jobs
class Bar
def hello
"Bar says hello"
end
end
end
$> rails console
ruby-1.9.1-p378 > b = ::Jobs::Bar.new
NameError: uninitialized constant Jobs
from (irb):3
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/railties-3.0.0.beta3/lib/rails/commands/console.rb:47:in `start'
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/railties-3.0.0.beta3/lib/rails/commands/console.rb:8:in `start'
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/railties-3.0.0.beta3/lib/rails/commands.rb:34:in `<top (required)>'
from script/rails:9:in `require'
from script/rails:9:in `<main>'
# it makes sense that this would fail since it doesn't really exist
ruby-1.9.1-p378 > b = Bar.new
LoadError: Expected /Users/house/projects/sandboxfor3/app/jobs/bar.rb to define Bar
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/activesupport-3.0.0.beta3/lib/active_support/dependencies.rb:453:in `load_missing_constant'
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/activesupport-3.0.0.beta3/lib/active_support/dependencies.rb:153:in `block in const_missing'
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/activesupport-3.0.0.beta3/lib/active_support/dependencies.rb:151:in `each'
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/activesupport-3.0.0.beta3/lib/active_support/dependencies.rb:151:in `const_missing'
from (irb):4
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/railties-3.0.0.beta3/lib/rails/commands/console.rb:47:in `start'
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/railties-3.0.0.beta3/lib/rails/commands/console.rb:8:in `start'
from /Users/house/.rvm/gems/ruby-1.9.1-p378/gems/railties-3.0.0.beta3/lib/rails/commands.rb:34:in `<top (required)>'
from script/rails:9:in `require'
from script/rails:9:in `<main>'
# now it works as expected? but only after doing 'b = Bar.new' which is invalid?
ruby-1.9.1-p378 > b = ::Jobs::Bar.new
=> #<Jobs::Bar:0x2484b64>
ruby-1.9.1-p378 > b.hello
=> "Bar says hello"
Everything works correctly in the following similar situations
- namespaces under /app/models, -- for example /app/models/jobs/bar.rb with the exact same class definition and no config.load_paths
- a non-namespaced class under /app/jobs with config.load_paths -- for example
# /app/jobs/foo.rb
class Foo
end
Foo.new # no errors
Comments and changes to this ticket
-
Santiago Pastorino February 2nd, 2011 @ 04:51 PM
- State changed from new to open
This issue has been automatically marked as stale because it has not been commented on for at least three months.
The resources of the Rails core team are limited, and so we are asking for your help. If you can still reproduce this error on the 3-0-stable branch or on master, please reply with all of the information you have about it and add "[state:open]" to your comment. This will reopen the ticket for review. Likewise, if you feel that this is a very important feature for Rails to include, please reply with your explanation so we can consider it.
Thank you for all your contributions, and we hope you will understand this step to focus our efforts where they are most helpful.
-
Santiago Pastorino February 2nd, 2011 @ 04:52 PM
- State changed from open to stale
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