mongo (2.18.2)
mongoid (8.0.3)
Rails 7.04

When I rake db:mongoid:create_indexes, indexes are not created. I used tail -f log/development.rb to see index creation activity.

It seem the problem is that I put Mongoid documents in app/models/documents:

app/models/documents/signal_notification.rb
app/models/documents/bar.rb

When creating indexes, Mongoid iterates over the Mongoid::Config#models.

I have autoload_paths configured in application.rb:

module MyApp
  class Application < Rails::Application
    # Initialize configuration defaults for originally generated Rails version.
    config.load_defaults 7.0
    config.autoload_paths += Dir[Rails.root.join('app', 'models', 'documents')]

I found this behavior in the Rails console:

~/projects/trading-app-2> rails c
Loading development environment (Rails 7.0.4)
irb(main):001:0> Mongoid.models
=> [Mongoid::GlobalDiscriminatorKeyAssignment::InvalidFieldHost, SignalNotification]
irb(main):003:0> Rails.application.eager_load!
=> nil
irb(main):004:0> Mongoid.models
=> [Mongoid::GlobalDiscriminatorKeyAssignment::InvalidFieldHost, SignalNotification, Bar, ...]

After loading all Rails models, Mongoid#models returns the expected Mongoid models.

I found that Mongoid#load_models does not use config.autoload_paths. 

Mongoid#load seems to assume that all Mongoid models are in app/models (line 17):

https://www.mongodb.com/docs/mongoid/master/api/Rails/Mongoid.html#load_models-instance_method

So, may need to use config.autoload_paths to find all Mongoid models?