EctoTrail

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EctoTrail allows to store changeset changes into a separate audit_log table.

Installation and usage

  1. Add ecto_trail to your list of dependencies in mix.exs:
  def deps do
    [{:ecto_trail, "~> 0.2.0"}]
  end
  1. Ensure ecto_trail is started before your application:
  def application do
    [extra_applications: [:ecto_trail]]
  end
  1. Add a migration that creates audit_log table to priv/repo/migrations folder:
  defmodule EctoTrail.TestRepo.Migrations.CreateAuditLogTable do
    @moduledoc false
    use Ecto.Migration

    def change do
      create table(:audit_log, primary_key: false) do
        add :id, :uuid, primary_key: true
        add :actor_id, :string, null: false
        add :resource, :string, null: false
        add :resource_id, :string, null: false
        add :changeset, :map, null: false

        timestamps([type: :utc_datetime, updated_at: false])
      end
    end
  end
  1. Use EctoTrail in your repo:
  defmodule MyApp.Repo do
    use Ecto.Repo, otp_app: :my_app
    use EctoTrail
  end
  1. Use logging functions instead of defaults. See EctoTrail module docs.

Docs

The docs can be found at https://hexdocs.pm/ecto_trail.