1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Chat do
13 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).
15 It is a helper only, to make it easy to display a list of chats with other people, ordered by last bump. The actual messages are retrieved by querying the recipients of the ChatMessages.
19 belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
20 field(:recipient, :string)
21 field(:unread, :integer, default: 0, read_after_writes: true)
26 def creation_cng(struct, params) do
28 |> cast(params, [:user_id, :recipient, :unread])
29 |> validate_change(:recipient, fn
30 :recipient, recipient ->
31 case User.get_cached_by_ap_id(recipient) do
32 nil -> [recipient: "must a an existing user"]
36 |> validate_required([:user_id, :recipient])
37 |> unique_constraint(:user_id, name: :chats_user_id_recipient_index)
40 def get(user_id, recipient) do
42 |> Repo.get_by(user_id: user_id, recipient: recipient)
45 def get_or_create(user_id, recipient) do
47 |> creation_cng(%{user_id: user_id, recipient: recipient})
49 on_conflict: :nothing,
51 conflict_target: [:user_id, :recipient]
55 def bump_or_create(user_id, recipient) do
57 |> creation_cng(%{user_id: user_id, recipient: recipient, unread: 1})
59 on_conflict: [set: [updated_at: NaiveDateTime.utc_now()], inc: [unread: 1]],
60 conflict_target: [:user_id, :recipient]