issue when using rake diagram:all_with_engines

[wugols2004]

Currently tinkering railroady with spreecommerce and im getting a lot of uninitialized constant errors when generating the model using the all engines option. The model graph is blank but the controllers are generated with no problems.

[dpritchett]

+1, exact same issue here :)

[preston]

Anyone have a PR?

[craigmcdonald]

This would seem to be somewhat spree specific, in that the method:

def get_engine_files
    engines.collect { |engine| Dir.glob("#{engine.root.to_s}/app/models/**/*.rb")}.flatten
  end

Is not going to load the models correctly, since the spree gem is actually bunch of related gems, like spree-core, etc.

This means that the path for each models dir, is something like:

"#{engine.root.to_s}/**/app/models/**/*.rb"

I quickly threw this in to the railroady gem and it successfully generated a model diagram with less errors, although I'm posting this here more as a signpost than any sort of real solution at present.