Terryble:

Phoenix 1.7 has updated the core_components file that comes with mix phx.new which means we need to change the way we use AshPhoenix.Form to play nicely with the updated form components.

From what I gathered in some of the previous conversations, the way to do it in the new component should be as follows.

When calling <.simple_form /> , the :let should removed so it would look like this:

<.simple_form
  for={@form}
  id="post-form"
  phx-target={@myself}
  phx-change="validate"
  phx-submit="save">

When it comes to using <.input /> , the field attribute should look like this:

<.input field={@form[:title]} type="text" label="Title" />

When defining the form, we can still use the regular AshPhoenix.Form.for_action , AshPhoenix.Form.for_create , and AshPhoenix.Form.for_update and then calling to_form() to make it compliant with the new components.

When calling the validate handle_event , there are no issues with just assigning AshPhoenix.Form.validate() |> to_form() for the form assigns in the socket.

My problem is with calling AshPhoenix.Form.submit . I am getting an error when doing the following:

AshPhoenix.Form.submit(socket.assigns.form, params: post_params)

I am getting the following error:

** (Protocol.UndefinedError) protocol Phoenix.HTML.FormData not implemented for {:ok, #MyApp.Blog.Post<..>} of type Tuple. This protocol is implemented for the following type(s): AshPhoenix.FilterForm, AshPhoenix.FilterForm.Arguments, AshPhoenix.FilterForm.Predicate, AshPhoenix.Form, Atom, Ecto.Changeset, Map, Plug.Conn

What should I do to fix this? For some reason, it actually persists in the database. It’s just that I’m getting this error if I call the line above.

I am using ash_phoenix 1.2.8

Terryble:

I’m just guessing here. I’m looking at the source for AshPhoenix.Form.submit and it looks like submit/2 is returning {:ok, Ash.Resource.record()} which breaks the call to Phoenix.HTML.FormData.to_form/1 .

I’m not 100% and it’s just based on how I understood the source code for this.

https://github.com/ash-project/ash_phoenix/blob/v1.2.8/lib/ash_phoenix/form/form.ex#L1434

Terryble:

I forked ash_phoenix and I did some testing. My guess was correct - submit/2 was indeed returning {:ok, Ash.Resource.record()} so the call to Phoenix.HTML.FormData.to_form/1 will not work.

I’m not sure if I just did it wrong or if this is an actual bug.

kernel:

pretty sure you should keep the :let={f} and use that

kernel:

no need to call to_form manually

kernel:

Terryble:

That worked! I realized I was wrong because I was trying to follow the way the new generators in 1. 7 did it. Apparently, all I had to do was update ash_phoenix to the latest version. and that was it.

Thanks!