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I'm not sure if this is an issue with tapioca or with the downstream gem, but figured I'd report here and you can tell me to go away if necessary :)
To replicate:
rails new tapioca-bug- Add
gem "noticed", "2.4.1"to Gemfile - Add
gem 'tapioca', require: falseto Gemfile bundle exec tapioca init
It will raise like this:
/.rvm/gems/ruby-3.2.2/gems/activerecord-7.2.1/lib/active_record/connection_adapters/abstract/connection_handler.rb:224:in `retrieve_connection_pool': No connection pool for 'ActiveRecord::Base' found. (ActiveRecord::ConnectionNotEstablished)
from /.rvm/gems/ruby-3.2.2/gems/activerecord-7.2.1/lib/active_record/connection_handling.rb:329:in `connection_pool'
from /.rvm/gems/ruby-3.2.2/gems/activerecord-7.2.1/lib/active_record/connection_handling.rb:321:in `connection_db_config'
from /.rvm/gems/ruby-3.2.2/gems/activerecord-7.2.1/lib/active_record/type.rb:50:in `adapter_name_from'
from /.rvm/gems/ruby-3.2.2/gems/activerecord-7.2.1/lib/active_record/attributes.rb:299:in `resolve_type_name'
from /.rvm/gems/ruby-3.2.2/gems/activemodel-7.2.1/lib/active_model/attribute_registration.rb:14:in `attribute'
from /.rvm/gems/ruby-3.2.2/gems/noticed-2.4.1/app/models/noticed/event.rb:15:in `<class:Event>'
from /.rvm/gems/ruby-3.2.2/gems/noticed-2.4.1/app/models/noticed/event.rb:2:in `<module:Noticed>'
from /.rvm/gems/ruby-3.2.2/gems/noticed-2.4.1/app/models/noticed/event.rb:1:in `<main>'
The issue is the , :json here. If you remove that, it works fine, since it doesn't need to do the type lookup anymore.
As far as I'm aware, that approach of putting models in app/models for a gem is valid, but maybe there's a more correct way to structure the gem. In any case, it works fine everywhere apart from this specific case.
The underlying issue, I think, is that Rails thinks there's no connection pool set up. This is not an issue when you boot a Rails app, it's only an issue when tapioca is eager loading.
cc @excid3
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