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
16 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).
18 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.
21 @primary_key {:id, FlakeId.Ecto.CompatType, autogenerate: true}
24 belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
25 field(:recipient, :string)
30 def changeset(struct, params) do
32 |> cast(params, [:user_id, :recipient])
33 |> validate_change(:recipient, fn
34 :recipient, recipient ->
35 case User.get_cached_by_ap_id(recipient) do
36 nil -> [recipient: "must be an existing user"]
40 |> validate_required([:user_id, :recipient])
41 |> unique_constraint(:user_id, name: :chats_user_id_recipient_index)
49 def get(user_id, recipient) do
51 |> Repo.get_by(user_id: user_id, recipient: recipient)
54 def get_or_create(user_id, recipient) do
56 |> changeset(%{user_id: user_id, recipient: recipient})
58 # Need to set something, otherwise we get nothing back at all
59 on_conflict: [set: [recipient: recipient]],
61 conflict_target: [:user_id, :recipient]
65 def bump_or_create(user_id, recipient) do
67 |> changeset(%{user_id: user_id, recipient: recipient})
69 on_conflict: [set: [updated_at: NaiveDateTime.utc_now()]],
71 conflict_target: [:user_id, :recipient]
75 @spec for_user_query(FlakeId.Ecto.CompatType.t()) :: Ecto.Query.t()
76 def for_user_query(user_id) do
78 where: c.user_id == ^user_id,
79 order_by: [desc: c.updated_at]