Dynamic Nested Forms with Turbo Discussion

Thanks for this lesson, it's very helpful.

One small tip in case anybody else runs into an error about UnknownAttributeError when using this approach for accepts_nested_attributes on an association that uses has_one instead of has_many. In the has_one setup, the parameters hash does not need the "id" used in the fields_for() call. If you include it then you get the UnknownAttributeError because of the id. This is nothing to do with turbo and can be reproduced in the rails console.

So, if using has_many, then include the "id"s in the fields_for.

If using has_one, do not!