CapsuleEcto

Ecto integration for Capsule

This package adds the following two features to support the use of Capsule with Ecto:

1. Custom Type

Specify your file field with the following type to get serialization of encapsulated uploads to maps: field :file_data, Capsule.Ecto.Type

1. Changeset helper

Cast params to encapsulated data with Capsule.Ecto.encapsulate. In the style of Ecto.Multi, it accepts either an anonymous function or a module and function name, with arity(2). The first argument will be a 2 element tuple representing the key/param pair and the second value will be the changeset. It is expected to return an Encapsulation struct.

If you just want to store the file in some storage, and maybe extract some metadata then the anonymous function may be all you need:

  |> %Attachment{}
  |> Ecto.changeset.change()
  |> Capsule.Ecto.encapsulate(%{"file_data" => some_upload}, [:file_data], fn {_field, upload}, _changeset ->
      case Capsule.Storages.Disk.put(upload) do
        {:ok, cap} -> cap |> Capsule.add_metadata(%{yo: :dawg})
      end
  |> # Validate, etc

However, if you want to do more complicated things with the upload before storing it (such as resizing, encrypting, etc) then creating a module is probably the way to go.