Transmogrifier: Fetch missing actors for chatmessages.

[akkoma] / lib / pleroma / chat.ex

diff --git a/lib/pleroma/chat.ex b/lib/pleroma/chat.ex
index b61bc4c0e741b8eacfa7df5106b721572c902a5d..b8545063a3ee2bb931c5fbc0b75ab896cd5a0e5d 100644 (file)
--- a/lib/pleroma/chat.ex
+++ b/lib/pleroma/chat.ex
@@ -6,8 +6,8 @@ defmodule Pleroma.Chat do
   use Ecto.Schema
   import Ecto.Changeset
 
-  alias Pleroma.User
   alias Pleroma.Repo
+  alias Pleroma.User
 
   @moduledoc """
   Chat keeps a reference to ChatMessage conversations between a user and an recipient. The recipient can be a user (for now) or a group (not implemented yet).
@@ -26,6 +26,13 @@ defmodule Pleroma.Chat do
   def creation_cng(struct, params) do
     struct
     |> cast(params, [:user_id, :recipient, :unread])
+    |> validate_change(:recipient, fn
+      :recipient, recipient ->
+        case User.get_cached_by_ap_id(recipient) do
+          nil -> [recipient: "must a an existing user"]
+          _ -> []
+        end
+    end)
     |> validate_required([:user_id, :recipient])
     |> unique_constraint(:user_id, name: :chats_user_id_recipient_index)
   end
@@ -35,6 +42,16 @@ defmodule Pleroma.Chat do
     |> Repo.get_by(user_id: user_id, recipient: recipient)
   end
 
+  def get_or_create(user_id, recipient) do
+    %__MODULE__{}
+    |> creation_cng(%{user_id: user_id, recipient: recipient})
+    |> Repo.insert(
+      on_conflict: :nothing,
+      returning: true,
+      conflict_target: [:user_id, :recipient]
+    )
+  end
+
   def bump_or_create(user_id, recipient) do
     %__MODULE__{}
     |> creation_cng(%{user_id: user_id, recipient: recipient, unread: 1})