undefined method `register' for ActiveRecord::ConnectionAdapters:Module (NoMethodError)

[martinGerez]

I'm following the blog post, and after install the gem and try to install it, I've the following error:

.rvm/gems/ruby-3.2.1/gems/wasmify-rails-0.2.2/lib/wasmify-rails.rb:24:in `<main>': undefined method `register' for ActiveRecord::ConnectionAdapters:Module (NoMethodError)

ActiveRecord::ConnectionAdapters.register("nulldb", "ActiveRecord::ConnectionAdapters::NullDBAdapter", "active_record/connection_adapters/nulldb_adapter")
                                ^^^^^^^^^

Ruby version: ruby 3.2.1 (2023-02-08 revision 31819e82c8) [arm64-darwin21]
Rails version: Rails 7.1.5.1
Wasmify-rails version: .rvm/gems/ruby-3.2.1/gems/wasmify-rails-0.2.2

If I inspect the methods from ActiveRecord::ConnectionAdapters it doesn't have register method effectively:

> ActiveRecord::ConnectionAdapters.methods - Object.methods
> [:autoload_at, :eager_autoload, :eager_load!, :autoload_under]

I'm not sure if I'm missing something in the middle.

[palkan]

It's been added in Rails 7.2 (that's the minimal version we test the gem with; I should have added this to Readme).