How to submit multiple NEW items via Rails 3.2 mass-assignment

Question

I have a pretty standard use-case. I have a parent object and a list of child objects. I want to have a tabular form where I can edit all the children at once, as rows in th

Answer 1

long post deleted

Ryan has an episode on this: http://railscasts.com/episodes/196-nested-model-form-revised

It looks like you need to generate the unique index manually. Ryan uses the object_id for this.