fixes #143, reindex alias when removed

lib/philomena/tags.ex

@@ -256,9 +256,20 @@ defmodule Philomena.Tags do
   end
 
   def unalias_tag(%Tag{} = tag) do
+    former_alias = Repo.preload(tag, :aliased_tag).aliased_tag
+
     tag
     |> Tag.unalias_changeset()
     |> Repo.update()
+    |> case do
+      {:ok, _} = result ->
+        reindex_tag_images(former_alias)
+
+        result
+
+      result ->
+        result
+    end
   end
 
   defp array_replace(queryable, column, old_value, new_value) do

lib/philomena_web/controllers/tag/alias_controller.ex

@@ -29,10 +29,12 @@ defmodule PhilomenaWeb.Tag.AliasController do
   end
 
   def delete(conn, _params) do
+    spawn(fn ->
       {:ok, _tag} = Tags.unalias_tag(conn.assigns.tag)
+    end)
 
     conn
-    |> put_flash(:info, "Tag alias removed.")
+    |> put_flash(:info, "Tag dealias queued.")
     |> redirect(to: Routes.tag_path(conn, :show, conn.assigns.tag))
   end
 end