Autostruct repro

gistfile1.txt

#! /usr/bin/env ruby

require 'bundler/inline'

gemfile(true) do
  source "https://rubygems.org"

  gem 'rom-sql'
  gem 'rom-repository'
  gem 'sqlite3'
end

config = ROM::Configuration.new(:sql, "sqlite::memory")

gateway = config.gateways[:default]
migration = gateway.migration do
  change do
    create_table :articles do
      primary_key :id
      column :title, String, null: false
      column :author_id, Integer, null: true
    end

    create_table :profiles do
      primary_key :id
      column :name, String, null: false
    end
  end
end

migration.apply gateway.connection, :up

module Entities
  class Profile < ROM::Struct
    def first_name
      name.split(' ').first
    end
  end

  class Article < ROM::Struct
    attribute :author, Entities::Profile
  end
end


class ProfilesRelation < ROM::Relation[:sql]
  struct_namespace Entities
  
  schema(:profiles, infer: true)
end

class ArticlesRelation < ROM::Relation[:sql]
  struct_namespace Entities

  schema(:articles, infer: true) do
    associations do
      belongs_to :profiles, as: :author, foreign_key: :author_id, relation: :profiles
    end
  end
end

config.register_relation(ProfilesRelation)
config.register_relation(ArticlesRelation)

rom = ROM.container(config)

class Articles < ROM::Repository[:articles]
  def list
    articles.combine(:author)
  end
end

jdoe = rom.relations[:profiles].command(:create).call(name: "John Doe")
rom.relations[:articles].command(:create).call(title: "testing", author_id: jdoe[:id])

articles = Articles.new(rom)

article = articles.list.first

# I expect article.author to be an Entities::Profile
pp article
puts article.author.first_name