feat: create detour notification table

lib/notifications/db/detour.ex

@@ -0,0 +1,36 @@
+defmodule Notifications.Db.Detour do
+  @moduledoc """
+  Ecto Model for Detour Notifications struct and Database table
+  """
+
+  use Skate.Schema
+  import Ecto.Changeset
+
+  @derive {Jason.Encoder,
+           only: [
+             :__struct__,
+             :status
+           ]}
+
+  typed_schema "detour_notifications" do
+    belongs_to :detour, Skate.Detours.Db.Detour
+    has_one :notification, Notifications.Db.Notification
+
+    field :status, Ecto.Enum, values: [:activated]
+  end
+
+  def changeset(
+        %__MODULE__{} = struct,
+        attrs \\ %{}
+      ) do
+    struct
+    |> cast(attrs, [
+      :detour,
+      :status
+    ])
+    |> validate_required([
+      :detour,
+      :status
+    ])
+  end
+end

lib/notifications/db/notification.ex

@@ -19,6 +19,7 @@ defmodule Notifications.Db.Notification do
 
     belongs_to(:block_waiver, DbBlockWaiver)
     belongs_to(:bridge_movement, DbBridgeMovement)
+    belongs_to(:detour, Notifications.Db.Detour)
   end
 
   def block_waiver_changeset(notification, attrs \\ %{}) do

priv/repo/migrations/20240909134311_create_detour_notifications_table.exs

@@ -0,0 +1,10 @@
+defmodule Skate.Repo.Migrations.CreateDetourNotificationsTable do
+  use Ecto.Migration
+
+  def change do
+    create table(:detour_notifications) do
+      add :detour_id, references(:detours, on_delete: :nothing)
+      add :status, :string
+    end
+  end
+end

priv/repo/migrations/20240909134742_create_detour_notifications_index.exs

@@ -0,0 +1,10 @@
+defmodule Skate.Repo.Migrations.CreateDetourNotificationsIndex do
+  use Ecto.Migration
+
+  @disable_ddl_transaction true
+  @disable_migration_lock true
+
+  def change do
+    create index(:detour_notifications, [:detour_id], concurrently: true)
+  end
+end

priv/repo/migrations/20240909200808_create_detour_notifications_reference.exs

@@ -0,0 +1,9 @@
+defmodule Skate.Repo.Migrations.CreateDetourNotificationsReference do
+  use Ecto.Migration
+
+  def change do
+    alter table(:notifications) do
+      add(:detour_id, references(:detour_notifications))
+    end
+  end
+end