Merge pull request #97 from dwyl/custom-atom-ecto-type-#93

Custom atom ecto type

lib/app/ecto_atom.ex

@@ -0,0 +1,16 @@
+defmodule App.EctoAtom do
+  @moduledoc """
+  Custom Ecto type for atom
+  """
+  use Ecto.Type
+
+  def type, do: :string
+
+  def cast(value) when is_atom(value), do: {:ok, value}
+  def cast(_), do: :error
+
+  def load(value), do: {:ok, String.to_atom(value)}
+
+  def dump(value) when is_atom(value), do: {:ok, Atom.to_string(value)}
+  def dump(_), do: :error
+end

lib/app/status.ex

@@ -5,7 +5,7 @@ defmodule App.Status do
   alias __MODULE__
 
   schema "status" do
-    field :text, :string
+    field :text, App.EctoAtom
     field :status_code, :integer
 
     timestamps()
@@ -34,5 +34,4 @@ defmodule App.Status do
         {:ok, status}
     end
   end
-
 end

priv/repo/seeds.exs

@@ -13,11 +13,9 @@ alias App.{Person, Status}
 
 # Statuses: github.com/dwyl/statuses
 Statuses.get_statuses()
-|> Enum.each(fn(s) ->
+|> Enum.each(fn s ->
   Status.upsert(%{
-    text: Atom.to_string(s.text) 
-      |> String.split("_", trim: true) 
-      |> Enum.join(" "),
+    text: s.text,
     status_code: s.code
   })
 end)

test/app/status_test.exs

@@ -3,11 +3,10 @@ defmodule App.StatusTest do
   alias App.Status
 
   describe "status" do
-    @valid_attrs %{text: "some text"}
+    @valid_attrs %{text: :some_text}
     # @update_attrs %{text: "some updated text"}
     @invalid_attrs %{text: nil}
 
-
     def status_fixture(attrs \\ %{}) do
       {:ok, status} =
         attrs
@@ -19,7 +18,7 @@ defmodule App.StatusTest do
 
     test "create/1 with valid data creates a status" do
       {:ok, status} = Status.create(@valid_attrs)
-      assert status.text == "some text"
+      assert status.text == :some_text
     end
 
     test "create/1 with invalid data returns error changeset" do
@@ -28,16 +27,15 @@ defmodule App.StatusTest do
 
     test "upsert/1 with valid data returns status" do
       {:ok, status} = Status.upsert(@valid_attrs)
-      assert status.text == "some text"
+      assert status.text == :some_text
 
       # confirm that upsert/1 does not re-create the same status:
       {:ok, status_again} = Status.upsert(@valid_attrs)
       assert status_again.id == status.id
     end
 
-
     test "upsert/1 with new data returns the new status" do
-      new_status = %{text: "Hello Simon!"}
+      new_status = %{text: :Hello_Simon!}
       {:ok, status} = Status.upsert(new_status)
       assert status.text == new_status.text
     end