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A foundation for building Elixir Phoenix apps — SaaS, social networks, ERP systems, marketplaces, and more

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phoenix_kit lib modules shared components entity_form.ex
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lib/modules/shared/components/entity_form.ex 

defmodule PhoenixKit.Modules.Shared.Components.EntityForm do

  @moduledoc """

  Embeddable entity form component for publishing pages.

  Renders a public submission form based on entity configuration.



  ## Usage in .phk files



      <EntityForm entity_slug="contact" />



  ## Attributes



  - `entity_slug` (required) - The slug/name of the entity to render form for

  """

  use Phoenix.Component

  use Gettext, backend: PhoenixKitWeb.Gettext



  alias PhoenixKit.Modules.Entities

  alias PhoenixKit.Modules.Entities.EntityData

  alias PhoenixKit.Modules.Entities.FormBuilder

  alias PhoenixKit.Utils.Date, as: UtilsDate



  attr :content, :string, default: nil

  attr :attributes, :map, default: %{}

  attr :variant, :string, default: "default"



  def render(assigns) do

    entity_slug = Map.get(assigns.attributes, "entity_slug", "")



    # Load entity and check if public form is enabled

    entity = if entity_slug != "", do: Entities.get_entity_by_name(entity_slug), else: nil



    {form_enabled, form_fields, form_title, form_description, form_submit_text, honeypot_enabled} =

      if entity do

        settings = entity.settings || %{}

        enabled = Map.get(settings, "public_form_enabled", false)

        fields = Map.get(settings, "public_form_fields", [])

        # Form is only truly enabled if it's enabled AND has at least one field selected

        actually_enabled = enabled && not Enum.empty?(fields)

        title = Map.get(settings, "public_form_title", "")

        description = Map.get(settings, "public_form_description", "")

        submit_text = Map.get(settings, "public_form_submit_text", gettext("Submit"))

        honeypot = Map.get(settings, "public_form_honeypot", false)

        {actually_enabled, fields, title, description, submit_text, honeypot}

      else

        {false, [], "", "", gettext("Submit"), false}

      end



    # Create a form entity with only the public form fields

    form_entity =

      if entity && form_enabled do

        fields_definition = entity.fields_definition || []



        public_fields =

          Enum.filter(fields_definition, fn field ->

            field["key"] in form_fields

          end)



        %{entity | fields_definition: public_fields}

      else

        nil

      end



    assigns =

      assigns

      |> assign(:entity_slug, entity_slug)

      |> assign(:entity, entity)

      |> assign(:form_entity, form_entity)

      |> assign(:form_enabled, form_enabled)

      |> assign(:form_title, form_title)

      |> assign(:form_description, form_description)

      |> assign(:form_submit_text, form_submit_text)

      |> assign(:honeypot_enabled, honeypot_enabled)

      |> assign(:form_timestamp, UtilsDate.utc_now() |> DateTime.to_iso8601())



    ~H"""

    <div class="entity-form-wrapper">

      <%= cond do %>

        <% @entity_slug == "" -> %>

          <div class="card bg-base-100 shadow-xl">

            <div class="card-body text-center py-8">

              <div class="text-4xl mb-3">⚠️</div>

              <p class="text-base-content/70">{gettext("Form configuration error.")}</p>

            </div>

          </div>

        <% is_nil(@entity) -> %>

          <div class="card bg-base-100 shadow-xl">

            <div class="card-body text-center py-8">

              <div class="text-4xl mb-3">⚠️</div>

              <p class="text-base-content/70">{gettext("Form configuration error.")}</p>

            </div>

          </div>

        <% !@form_enabled -> %>

          <div class="card bg-base-100 shadow-xl">

            <div class="card-body text-center py-8">

              <div class="text-4xl mb-3">📝</div>

              <p class="text-base-content/70">{gettext("This form is currently unavailable.")}</p>

            </div>

          </div>

        <% true -> %>

          <div class="card bg-base-100 shadow-xl">

            <div class="card-body">

              <%= if @form_title != "" do %>

                <h2 class="card-title text-2xl mb-2">{@form_title}</h2>

              <% end %>

              <%= if @form_description != "" do %>

                <p class="text-base-content/70 mb-4">{@form_description}</p>

              <% end %>



              <form

                action={PhoenixKit.Utils.Routes.path("/entities/#{@entity_slug}/submit")}

                method="post"

              >

                <input type="hidden" name="_csrf_token" value={Phoenix.Controller.get_csrf_token()} />



                <%!-- Form loaded timestamp (always included for metadata) --%>

                <input type="hidden" name="_form_loaded_at" value={@form_timestamp} />



                <%!-- Honeypot field (hidden from humans, bots will fill it) --%>

                <%= if @honeypot_enabled do %>

                  <div style="position: absolute; left: -9999px;" aria-hidden="true">

                    <label for="_hp_website">Leave this field empty</label>

                    <input

                      type="text"

                      name="_hp_website"

                      id="_hp_website"

                      tabindex="-1"

                      autocomplete="off"

                    />

                  </div>

                <% end %>



                {FormBuilder.build_fields(@form_entity, build_empty_changeset(@entity),

                  wrapper_class: "mb-4"

                )}



                <div class="form-control mt-6">

                  <button type="submit" class="btn btn-primary">

                    {@form_submit_text}

                  </button>

                </div>

              </form>

            </div>

          </div>

      <% end %>

    </div>

    """

  end



  defp build_empty_changeset(entity) do

    # Create an empty EntityData changeset for the form

    %EntityData{entity_id: entity.id, entity_uuid: entity.uuid, data: %{}}

    |> EntityData.change()

  end

end