Moritz
555ae15173
- Add Mv.Helpers module with ash_actor_opts/1 helper - Add current_actor/1 with @spec to LiveHelpers - Add ash_actor_opts/1 delegate and submit_form/3 wrapper to LiveHelpers - Standardize actor access pattern across LiveViews
111 lines
3.1 KiB
Elixir
111 lines
3.1 KiB
Elixir
defmodule MvWeb.LiveHelpers do
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@moduledoc """
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Shared LiveView lifecycle hooks and helper functions.
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## on_mount Hooks
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- `:default` - Sets the user's locale from session (defaults to "de")
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- `:ensure_user_role_loaded` - Ensures current_user has role relationship loaded
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## Usage
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Add to LiveView modules via:
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```elixir
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on_mount {MvWeb.LiveHelpers, :default}
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on_mount {MvWeb.LiveHelpers, :ensure_user_role_loaded}
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```
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"""
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import Phoenix.Component
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def on_mount(:default, _params, session, socket) do
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locale = session["locale"] || "de"
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Gettext.put_locale(locale)
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{:cont, socket}
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end
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def on_mount(:ensure_user_role_loaded, _params, _session, socket) do
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socket = ensure_user_role_loaded(socket)
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{:cont, socket}
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end
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defp ensure_user_role_loaded(socket) do
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if socket.assigns[:current_user] do
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user = socket.assigns.current_user
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user_with_role = load_user_role(user)
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assign(socket, :current_user, user_with_role)
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else
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socket
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end
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end
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defp load_user_role(user) do
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case Map.get(user, :role) do
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%Ash.NotLoaded{} -> load_role_safely(user)
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nil -> load_role_safely(user)
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_role -> user
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end
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end
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defp load_role_safely(user) do
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# Use self as actor for loading own role relationship
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opts = [domain: Mv.Accounts, actor: user]
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case Ash.load(user, :role, opts) do
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{:ok, loaded_user} ->
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loaded_user
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{:error, error} ->
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# Log warning if role loading fails - this can cause authorization issues
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require Logger
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Logger.warning("Failed to load role for user #{user.id}: #{inspect(error)}")
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user
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end
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end
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@doc """
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Helper function to get the current actor (user) from socket assigns.
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Provides consistent access pattern across all LiveViews.
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Returns nil if no current_user is present.
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## Examples
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actor = current_actor(socket)
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members = Membership.list_members!(actor: actor)
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"""
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@spec current_actor(Phoenix.LiveView.Socket.t()) :: Mv.Accounts.User.t() | nil
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def current_actor(socket) do
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socket.assigns[:current_user] || socket.assigns.current_user
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end
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@doc """
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Converts an actor to Ash options list for authorization.
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Returns empty list if actor is nil.
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Delegates to `Mv.Helpers.ash_actor_opts/1` for consistency across the application.
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## Examples
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opts = ash_actor_opts(actor)
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Ash.read(query, opts)
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"""
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@spec ash_actor_opts(Mv.Accounts.User.t() | nil) :: keyword()
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defdelegate ash_actor_opts(actor), to: Mv.Helpers
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@doc """
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Submits an AshPhoenix form with consistent actor handling.
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This wrapper ensures that actor is always passed via `action_opts`
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in a consistent manner across all LiveViews.
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## Examples
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case submit_form(form, params, actor) do
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{:ok, resource} -> # success
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{:error, form} -> # validation errors
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end
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"""
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@spec submit_form(AshPhoenix.Form.t(), map(), Mv.Accounts.User.t() | nil) ::
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{:ok, Ash.Resource.t()} | {:error, AshPhoenix.Form.t()}
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def submit_form(form, params, actor) do
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AshPhoenix.Form.submit(form, params: params, action_opts: ash_actor_opts(actor))
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end
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end
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