Rails Ruby on Rails

Extension libraries sometimes need to know what ORM is being used in order to load the right code. We can't rely on defined?(:ActiveRecord) because users tend to leave the defaultrequire 'rails/all'inapplication.rband load their ORM of choice in addition toActiveRecord.

The info is available at Rails.configuration.generators.options[:rails][:orm], but that presents a few problems:

• I'm not certain that there are any guarantees that this will be populated in a situation other than running generators.
• The dependency on generators feels odd for a non-generator activity
• Even with that, it's a long route to traverse to get to high level information

I'd propose adding an API for this like Rails.configuration.orm, or even Rails.orm. I'm happy to submit a patch for this, but would like to get a conversation going first.