From e0dc9c79f237112d0c84318371e9b20e39528244 Mon Sep 17 00:00:00 2001
From: liamwhite <liamwhite@users.noreply.github.com>
Date: Wed, 10 May 2023 21:42:56 -0400
Subject: [PATCH] fix gallery notification deletion (#183)

---
 lib/philomena/galleries.ex | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/lib/philomena/galleries.ex b/lib/philomena/galleries.ex
index 3119e3d2..2b08e3e1 100644
--- a/lib/philomena/galleries.ex
+++ b/lib/philomena/galleries.ex
@@ -15,6 +15,7 @@ defmodule Philomena.Galleries do
   alias Philomena.GalleryReorderWorker
   alias Philomena.Notifications
   alias Philomena.NotificationWorker
+  alias Philomena.Notifications.{Notification, UnreadNotification}
   alias Philomena.Images
 
   @doc """
@@ -90,9 +91,24 @@ defmodule Philomena.Galleries do
       |> select([i], i.image_id)
       |> Repo.all()
 
-    Repo.delete(gallery)
+    unread_notifications =
+      UnreadNotification
+      |> join(:inner, [un], _ in assoc(un, :notification))
+      |> where([_, n], n.actor_type == "Gallery")
+      |> where([_, n], n.actor_id == ^gallery.id)
+
+    notifications =
+      Notification
+      |> where(actor_type: "Gallery")
+      |> where(actor_id: ^gallery.id)
+
+    Multi.new()
+    |> Multi.delete(:gallery, gallery)
+    |> Multi.delete_all(:unread_notifications, unread_notifications)
+    |> Multi.delete_all(:notifications, notifications)
+    |> Repo.transaction()
     |> case do
-      {:ok, gallery} ->
+      {:ok, %{gallery: gallery}} ->
         unindex_gallery(gallery)
         Images.reindex_images(images)