Fix note counting.

lib/pleroma/user.ex

@@ -411,22 +411,19 @@ defmodule Pleroma.User do
   end
 
   def increase_note_count(%User{} = user) do
-    note_count = (user.info["note_count"] || 0) + 1
-    new_info = Map.put(user.info, "note_count", note_count)
+    info_cng = User.Info.add_to_note_count(user.info, 1)
+    cng = change(user)
+    |> put_embed(:info, info_cng)
 
-    cs = info_changeset(user, %{info: new_info})
-
-    update_and_set_cache(cs)
+    update_and_set_cache(cng)
   end
 
   def decrease_note_count(%User{} = user) do
-    note_count = user.info["note_count"] || 0
-    note_count = if note_count <= 0, do: 0, else: note_count - 1
-    new_info = Map.put(user.info, "note_count", note_count)
+    info_cng = User.Info.add_to_note_count(user.info, -1)
+    cng = change(user)
+    |> put_embed(:info, info_cng)
 
-    cs = info_changeset(user, %{info: new_info})
-
-    update_and_set_cache(cs)
+    update_and_set_cache(cng)
   end
 
   def update_note_count(%User{} = user) do

lib/pleroma/user/info.ex

@@ -24,4 +24,12 @@ defmodule Pleroma.User.Info do
     |> cast(params, [:deactivated])
     |> validate_required([:deactivated])
   end
+
+  def add_to_note_count(info, number) do
+    params = %{note_count: Enum.max([0, info.note_count + number])}
+
+    info
+    |> cast(params, [:note_count])
+    |> validate_required([:note_count])
+  end
 end

test/user_test.exs

@@ -322,34 +322,34 @@ defmodule Pleroma.UserTest do
       note = insert(:note)
       user = User.get_by_ap_id(note.data["actor"])
 
-      assert user.info["note_count"] == nil
+      assert user.info.note_count == 0
 
       {:ok, user} = User.increase_note_count(user)
 
-      assert user.info["note_count"] == 1
+      assert user.info.note_count == 1
 
       {:ok, user} = User.increase_note_count(user)
 
-      assert user.info["note_count"] == 2
+      assert user.info.note_count == 2
     end
 
     test "it decreases the info->note_count property" do
       note = insert(:note)
       user = User.get_by_ap_id(note.data["actor"])
 
-      assert user.info["note_count"] == nil
+      assert user.info.note_count == 0
 
       {:ok, user} = User.increase_note_count(user)
 
-      assert user.info["note_count"] == 1
+      assert user.info.note_count == 1
 
       {:ok, user} = User.decrease_note_count(user)
 
-      assert user.info["note_count"] == 0
+      assert user.info.note_count == 0
 
       {:ok, user} = User.decrease_note_count(user)
 
-      assert user.info["note_count"] == 0
+      assert user.info.note_count == 0
     end
 
     test "it sets the info->follower_count property" do