Inflector/environment.rb Bug in Rails

Today I needed to get Rails to grok an uncountable noun "media". Easy you think, right? Just add an inflection rule.

So I went to config/environment.rb, uncommented the Inflection example and modified it with my "media" noun, just like this:

Rails::Initializer.run do |config|
  ...
  ...
  ...
  
  Inflector.inflections do |inflect|
    inflect.uncountable %w( media )
  end

  # See Rails::Configuration for more options
end

# Add new mime types for use in respond_to blocks:
# Mime::Type.register "text/richtext", :rtf
# Mime::Type.register "application/x-mobile", :mobile

When I tried to run rails console or tests I saw an error like this:

me@Xbook:testapp$ ./script/console 
Loading development environment.
./script/../config/../config/environment.rb:55:NameError: uninitialized constant Inflector
/opt/local/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_controller/assertions/selector_assertions.rb:525:NoMethodError: undefined method `camelize' for "top":String
/Users/me3x/Development/DSE/mediacast2/apps/testapp/app/controllers/application.rb:4:NameError: uninitialized constant ActionController::Base

The problem turned out to be in the commented-out rails example in environment.rb. The Inflector.inflections block must not be nested within the Initializer.run block.

This fixes the problem:

Rails::Initializer.run do |config|
  ...
  ...
  ...

  # See Rails::Configuration for more options
end

Inflector.inflections do |inflect|
  inflect.uncountable %w( media )
end

# Add new mime types for use in respond_to blocks:
# Mime::Type.register "text/richtext", :rtf
# Mime::Type.register "application/x-mobile", :mobile