PaperTrail.get_current\1 added

lib/paper_trail.ex

@@ -32,6 +32,13 @@ defmodule PaperTrail do
     VersionQueries.get_version(record)
   end
 
+  @doc """
+  Gets the current record of a version
+  """
+  def get_current(version) do
+    VersionQueries.get_current(version)
+  end
+
   @doc """
   Inserts a record to the database with a related version insertion in one transaction
   """

lib/paper_trail/version_queries.ex

@@ -34,6 +34,14 @@ defmodule PaperTrail.VersionQueries do
     last(version_query(item_type, record.id)) |> Repo.one
   end
 
+  @doc """
+  Gets the current record of a version
+  """
+  def get_current(version) do
+    Repo.get("Elixir." <> version.item_type |> String.to_atom, version.item_id)
+  end
+
+
   defp version_query(item_type, id) do
     from v in Version,
     where: v.item_type == ^item_type and v.item_id == ^id

lib/version.ex

@@ -21,7 +21,7 @@ defmodule PaperTrail.Version do
   """
   def changeset(model, params \\ :empty) do
     model
-    |> validate_required(~w(event item_type item_id created_at))
-    |> cast(params, ~w(meta))
+    |> validate_required(~w(event item_type item_id))
+    |> cast(params, ~w(meta inserted_at))
   end
 end

mix.exs

@@ -3,7 +3,7 @@ defmodule PaperTrail.Mixfile do
 
   def project do
     [app: :paper_trail,
-     version: "0.1.2",
+     version: "0.1.3",
      elixir: "~> 1.3",
      description: description,
      build_embedded: Mix.env == :prod,

test/paper_trail/version_queries_test.exs

@@ -77,6 +77,12 @@ defmodule PaperTrailTest.VersionQueries do
     assert PaperTrail.get_versions(Person, last_person.id) == target_versions
   end
 
+  test "get_current gives us the current record of a version" do
+    person = first(Person, :id) |> Repo.one
+    first_version = Version |> where([v], v.item_type == "Person" and v.item_id == ^person.id) |> first |> Repo.one
+
+    assert PaperTrail.get_current(first_version) == person
+  end
   # query meta data!!
 
 end