https://www.youtube.com/watch?v=2Zr9bvphA2o

This is a followup to our episode on making form inputs for lists (Ecto array types).

This time, we’re making even more customized Phoenix form input helpers. Like before they’ll allow editing a collection of entries, but instead of array types directly in a user’s schema, they’ll be fields from a has_many associated schema. We’ll work through a variety of potential pitfalls and create a very unorthodox input helper.