ActiveModel is agnostic to the database, you can use it without using any database, so no, it should not require Postgres.
I believe array: true on an ActiveRecord model, with MySQL, or SQLite, is possible too. Just combine it with "serialize" https://apidock.com/rails/ActiveRecord/Base/serialize/class -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/80dcb9b2-b60a-4062-824b-cc297d665f05%40googlegroups.com.
