mitgliederverwaltung/lib/mv/email_sync/loader.ex

40 lines
1.1 KiB
Elixir

defmodule Mv.EmailSync.Loader do
@moduledoc """
Helper functions for loading linked records in email synchronization.
Centralizes the logic for retrieving related User/Member entities.
"""
@doc """
Loads the member linked to a user, returns nil if not linked or on error.
"""
def get_linked_member(%{member_id: nil}), do: nil
def get_linked_member(%{member_id: id}) do
case Ash.get(Mv.Membership.Member, id) do
{:ok, member} -> member
{:error, _} -> nil
end
end
@doc """
Loads the user linked to a member, returns nil if not linked or on error.
"""
def get_linked_user(member) do
case Ash.load(member, :user) do
{:ok, %{user: user}} -> user
{:error, _} -> nil
end
end
@doc """
Loads the user linked to a member, returning an error tuple if not linked.
Useful when a link is required for the operation.
"""
def load_linked_user!(member) do
case Ash.load(member, :user) do
{:ok, %{user: user}} when not is_nil(user) -> {:ok, user}
{:ok, _} -> {:error, :no_linked_user}
{:error, _} = error -> error
end
end
end