rails generate doorkeeper:install fails with uninitialized constant ActiveRecord for a non-ActiveRecord project

[zedtux]

Steps to reproduce

1. Create a non-activerecord Rails application (Mongoid, Nobrainer or whatever other ORM than ActiveRecord)
2. Install the gem
3. Run the rails generate doorkeeper:install command

Expected behavior

Doorkeeper should have see that ActiveRecord is unknown in my project, but I have added the doorkeeper-rethinkdb gem and should skip all the ActiveRecord code.

Actual behavior

I got the following error:

/usr/local/bundle/gems/doorkeeper-5.6.6/lib/doorkeeper/orm/active_record/access_grant.rb:6:in `<module:Doorkeeper>': uninitialized constant ActiveRecord (NameError)
Did you mean?  ActiveModel
	from /usr/local/bundle/gems/doorkeeper-5.6.6/lib/doorkeeper/orm/active_record/access_grant.rb:5:in `<main>'
	from /usr/local/bundle/gems/bootsnap-1.9.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
	from /usr/local/bundle/gems/bootsnap-1.9.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
	from /usr/local/bundle/gems/bootsnap-1.9.3/lib/bootsnap/load_path_cache/loaded_features_index.rb:100:in `register'
	from /usr/local/bundle/gems/bootsnap-1.9.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
	from /usr/local/bundle/gems/bootsnap-1.9.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
	from /usr/local/bundle/gems/zeitwerk-2.6.7/lib/zeitwerk/kernel.rb:38:in `require'
	from /usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/inflector/methods.rb:288:in `const_get'
	from /usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/inflector/methods.rb:288:in `block in constantize'
	from /usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/inflector/methods.rb:284:in `each'
	from /usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/inflector/methods.rb:284:in `inject'
	from /usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/inflector/methods.rb:284:in `constantize'
	from /usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/core_ext/string/inflections.rb:74:in `constantize'
	from /usr/local/bundle/gems/doorkeeper-5.6.6/lib/doorkeeper/config.rb:442:in `access_grant_model'
	from /usr/local/bundle/gems/doorkeeper-5.6.6/lib/doorkeeper/orm/active_record.rb:40:in `initialize_configured_associations'
	from /usr/local/bundle/gems/doorkeeper-5.6.6/lib/doorkeeper/orm/active_record.rb:32:in `run_hooks'
	from /usr/local/bundle/gems/doorkeeper-5.6.6/lib/doorkeeper.rb:164:in `run_orm_hooks'
	from /usr/local/bundle/gems/doorkeeper-5.6.6/lib/doorkeeper/engine.rb:24:in `block in <class:Engine>'
	from /usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/callbacks.rb:427:in `instance_exec'
       ...

System configuration

Doorkeeper version: 5.6.6
Ruby version: 3.0.4

[nbulaj]

hey @zedtux . How does your doorkeeper config looks like? It's weird that it tries to load AR if orm :mongoid configured

[zedtux]

My ORM is rethinkdb, but that doesn't really matter I guess, and at that moment I don't have a doorkeeper.rb initialiser since I have just added the doorkeeper gem to my Gemfile, ran bundle and wanted to run rails generate doorkeeper:install like the documentation tells so.

[redross]

#1653 (comment)

Yup, same issue for me. Added gem - can't run the rake task. Maybe doing something wrong, but clearly something is not clear in the documentation if I'm not the only one stumbling on this.