+ def bookmark(%User{} = user, status_id) do
+ bookmarks = Enum.uniq(user.bookmarks ++ [status_id])
+ update_bookmarks(user, bookmarks)
+ end
+
+ def unbookmark(%User{} = user, status_id) do
+ bookmarks = Enum.uniq(user.bookmarks -- [status_id])
+ update_bookmarks(user, bookmarks)
+ end
+
+ def update_bookmarks(%User{} = user, bookmarks) do
+ user
+ |> change(%{bookmarks: bookmarks})
+ |> update_and_set_cache
+ end
+