Sort of ORM..

[nvoynov]

Hi,

Just playing around with Sequel and PostgreSQL for the purpose of staying on PORO as long as I can, I have designed a sort of simplified ORM and decided to share it here.

It's quite straightforward - entity -> mapper -> PG -> builder -> entity and it requires creating mappers for an entity to be stored; but mappers are simple.

Article = Struct.new(:id, :title, keyword_init: true)

class ArticleMapper < Mapper
  klass Article 
  into :articles
  properties :id, :title
end

# not required for a such simple entity where enough Article.new(**payload)
class ArticleBuilder < Builder 
  klass Article 
  from :articles
  properties :id, :title
end

Hope you find it interesting. There are missed ObjectFromHash and ObjectToHash classes inside the archive, but I think those names speak for the purpose.

sort-of-orm.zip