Datamapper DataMapper

I'm using merb-0.5.3 and was using the 0.25 gem, however I encountered a HABTM issue that prevented saves, and checked out the source for 0.30, patched per the diff below and installed the gem.

remote:associations daniel$ diff has_and_belongs_to_many_association.rb.orig has_and_belongs_to_many_association.rb

231c231

< if dirty?(cleared)

---

if dirty?(cleared.dup)

My original problem was resolved, however now './script/generate resource' is failing as follows:

remote:gazetteer daniel$ ./script/generate resource -t host

/Library/Ruby/Gems/1.8/gems/merb-0.5.3/lib/merb/version.rb:45: warning: already initialized constant RELEASE

Connecting to database...

resource-thost dependency model

exists app/models

identical app/models/host.rb

dependency merb_model_test

can't convert nil into String

(eval):3:in `__send__'

(eval):3:in `destination_path'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/commands.rb:325:in `directory'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:46:in `send'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:46:in `send_actions'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:45:in `each'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:45:in `send_actions'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:30:in `replay'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/commands.rb:41:in `invoke!'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/commands.rb:46:in `dependency'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/simple_logger.rb:21:in `call'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/simple_logger.rb:21:in `indent'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/simple_logger.rb:14:in `log'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/simple_logger.rb:41:in `method_missing'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/commands.rb:45:in `dependency'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:46:in `send'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:46:in `send_actions'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:45:in `each'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:45:in `send_actions'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:30:in `replay'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/commands.rb:41:in `invoke!'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/commands.rb:46:in `dependency'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/simple_logger.rb:21:in `call'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/simple_logger.rb:21:in `indent'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/simple_logger.rb:14:in `log'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/simple_logger.rb:41:in `method_missing'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/commands.rb:45:in `dependency'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:46:in `send'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:46:in `send_actions'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:45:in `each'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:45:in `send_actions'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/manifest.rb:30:in `replay'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/commands.rb:41:in `invoke!'

/Library/Ruby/Gems/1.8/gems/rubigen-1.2.4/lib/rubigen/scripts/../scripts.rb:30:in `run'

./script/generate:33

Once the 0.30 gem is removed, the issue goes away. I've tested 0.30 with and without the patch and the same behavior occurs for both. Other generators do not seem to be affected.