Hi,

I’m currently trying to build a nested dynamic form using Phoenix’s inputs_for function. However, I need these nested “forms” to be grouped by a common attribute, in my case, day_of_week.

I’ve been trying to figure out how to achieve this but haven’t found a solution yet.

For some additional context, here is a simplified version of my schemas:

defmodule Agenova.Availability do
  schema "availabilities" do
    field :day_of_week, :integer
    belongs_to :schedule, Agenova.Schedule
    # Virtual fields for the form
    field :delete, :boolean, virtual: true
  end
end

defmodule Agenova.Schedule do
  schema "schedules" do
    field :name, :string
    has_many :availabilities, Agenova.Availability
  end
end

Using the inputs_for function, I get a form like this:

main form
-> availability form 1
-> availability form 2
.
.
.

But my goal is to have the availabilities grouped by day_of_week, like this:

main form
-> day_of_week: 1
  ---> availability form 1
  ---> availability form 2
-> day_of_week: 2
  ---> availability form 3
  ---> availability form 4

Am I missing something obvious? Are there any tricks to achieve this?

Thank you!