+ def get_bookmark(%Activity{} = activity, %User{} = user) do
+ if Ecto.assoc_loaded?(activity.bookmark) do
+ activity.bookmark
+ else
+ Bookmark.get(user.id, activity.id)
+ end
+ end
+
+ def get_bookmark(_, _), do: nil
+
+ def change(struct, params \\ %{}) do
+ struct
+ |> cast(params, [:data])
+ |> validate_required([:data])
+ |> unique_constraint(:ap_id, name: :activities_unique_apid_index)
+ end
+