rename ammo groups to packs

priv/repo/migrations/20230329041109_rename_ammo_groups_to_packs.exs

@@ -0,0 +1,39 @@
+defmodule Cannery.Repo.Migrations.RenameAmmoGroupsToPacks do
+  use Ecto.Migration
+
+  def up do
+    drop index(:ammo_groups, [:user_id], where: "count = 0", name: :empty_ammo_groups_index)
+    drop index(:ammo_groups, [:user_id, :ammo_type_id])
+    drop index(:ammo_groups, [:user_id, :container_id])
+
+    flush()
+
+    rename table(:ammo_groups), to: table(:packs)
+
+    flush()
+
+    create index(:packs, [:user_id], where: "count = 0", name: :empty_packs_index)
+    create index(:packs, [:user_id, :ammo_type_id])
+    create index(:packs, [:user_id, :container_id])
+
+    rename table(:shot_groups), :ammo_group_id, to: :pack_id
+  end
+
+  def down do
+    drop index(:packs, [:user_id], where: "count = 0", name: :empty_packs_index)
+    drop index(:packs, [:user_id, :ammo_type_id])
+    drop index(:packs, [:user_id, :container_id])
+
+    flush()
+
+    rename table(:packs), to: table(:ammo_groups)
+
+    flush()
+
+    create index(:ammo_groups, [:user_id], where: "count = 0", name: :empty_ammo_groups_index)
+    create index(:ammo_groups, [:user_id, :ammo_type_id])
+    create index(:ammo_groups, [:user_id, :container_id])
+
+    rename table(:shot_groups), :pack_id, to: :ammo_group_id
+  end
+end