LiveView inputs_for with list without Ecto error: (ArgumentError) the Access module supports only keyword lists

Phoenix Forum Questions / Help
,
1

Hey folks, I’m trying to use list with inputs_for , but I’m getting this errors:

[error] ** (ArgumentError) the Access module supports only keyword lists (with atom keys), got: “_persistent_id”

If you want to search lists of tuples, use List.keyfind/3(elixir 1.19.5) 
lib/access.ex:362: Access.get/3
(phoenix_live_view 1.1.22) lib/phoenix_component.ex:2853: anonymous fn/2 in Phoenix.Component.apply_persistent_id/4
(elixir 1.19.5) lib/enum.ex:2520: Enum.“-reduce/3-lists^foldl/2-0-”/3
(phoenix_live_view 1.1.22) lib/phoenix_component.ex:2853: Phoenix.Component.apply_persistent_id/4
(phoenix_live_view 1.1.22) lib/phoenix_component.ex:2828: Phoenix.Component.“inputs_for (overridable 1)”/1
(phoenix_live_view 1.1.22) lib/phoenix_live_view/tag_engine.ex:137: Phoenix.LiveView.TagEngine.component/3

My form

to_form(%{"list" => []})

My view

 <ul class="list bg-base-100 rounded-box shadow-md">
     <.inputs_for :let={item} field={f[:list]}>
         <li class="list-row">
         {item[:value]}
         </li>
     </.inputs_for>
 </ul>
2

I could workaround by using

<%= for {item, index} <- Enum.with_index(f[:list].value) do %>
  <li class="list-row">
    <input 
       name={"my_form[list][#{index}][id]"}
       value={Phoenix.HTML.Form.normalize_value("hidden", item.id)}
       type="hidden"
     />
   </li>
<% end %>