Our Phoenix umbrella application will send us a user_id and a folder_path values and we will need to fetch all the Media entries on the given path. Paths in ElixirDrip always start with $, so $, $/folder, and $/a/b/c/d/e/f/g are all valid paths (notice that paths can't have a trailing slash).
Under the hood, we store the full path of each media file, but we store all the media in a single folder on Google Cloud Storage (given by each media storage_key). As such, typical file operations, such as move and rename, are just a matter of changing the media full_path and the file_name accordingly:
iex> Storage.list_all_media |> Enum.map(fn m -> %{user_id: m.user_id, file_name: m.file_name, path: m.full_path, storage_key: m.storage_key} ...
