A hanami slice in a Rails app

questions
7

Thank you both for all the pointers and of course for the branch! I can confirm that the minimal sample works with that and that I get my larger sample to work also.

I had not yet subclassed action and view because I was leery of adding more dependencies and thus more things to work through and I am not using either in my example.

Here is the next version I have come up with:

rm -rf hanami_sample

rails new hanami_sample
cd hanami_sample

echo '
gem "hanami", github: "hanami/hanami", branch: "fix-error-in-operation-extension-for-no-db-apps"
gem "hanami-controller", "~> 2.2"
gem "hanami-view", "~> 2.2"
gem "dry-operation"
' >> Gemfile

bundle



cd tmp
bundle exec hanami new SportsballHanami
cd sportsball_hanami
bundle exec hanami generate slice HanamiPredictor
mv slices ../..

cd ../..


echo '# typed: ignore

require "dry/monads"
require "dry/operation"
require "hanami/action"
require "hanami/view"

module SportsballHanami
  class App < Hanami::App
    prepare_container do |container|
      container.autoloader.ignore("app")
    end
  end

  class Action < Hanami::Action
    include Dry::Monads[:result]
  end
  class Operation < Dry::Operation
  end
  class View < Hanami::View
  end
end


Hanami.boot

HanamiPredictor::Slice.boot

p Hanami.app.slices[:hanami_predictor].keys

' > config/initializers/load_hanami.rb


bin/rails runner 'puts "Hello, world!"'

This fails with

/Users/stephan/.local/share/mise/installs/ruby/3.2.0/lib/ruby/gems/3.2.0/bundler/gems/hanami-27a002cd91c2/lib/hanami/provider/source.rb:8:in `initialize': missing keyword: :slice (ArgumentError)
	from /Users/stephan/.local/share/mise/installs/ruby/3.2.0/lib/ruby/gems/3.2.0/gems/dry-configurable-1.3.0/lib/dry/configurable/instance_methods.rb:17:in `initialize'
	from /Users/stephan/.local/share/mise/installs/ruby/3.2.0/lib/ruby/gems/3.2.0/gems/dry-system-1.2.2/lib/dry/system/provider.rb:140:in `new'
...

The loading problems go away if I remove the inheritance from < Hanami::View. Once removed, the script passes.