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72 lines
2 KiB
Elixir
72 lines
2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Chat do
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use Ecto.Schema
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import Ecto.Changeset
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alias Pleroma.Repo
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alias Pleroma.User
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@moduledoc """
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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).
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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.
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"""
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@primary_key {:id, FlakeId.Ecto.CompatType, autogenerate: true}
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schema "chats" do
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belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
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field(:recipient, :string)
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timestamps()
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end
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def changeset(struct, params) do
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struct
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|> cast(params, [:user_id, :recipient])
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|> validate_change(:recipient, fn
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:recipient, recipient ->
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case User.get_cached_by_ap_id(recipient) do
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nil -> [recipient: "must be an existing user"]
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_ -> []
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end
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end)
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|> validate_required([:user_id, :recipient])
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|> unique_constraint(:user_id, name: :chats_user_id_recipient_index)
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end
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def get_by_id(id) do
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__MODULE__
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|> Repo.get(id)
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end
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def get(user_id, recipient) do
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__MODULE__
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|> Repo.get_by(user_id: user_id, recipient: recipient)
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end
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def get_or_create(user_id, recipient) do
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%__MODULE__{}
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|> changeset(%{user_id: user_id, recipient: recipient})
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|> Repo.insert(
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# Need to set something, otherwise we get nothing back at all
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on_conflict: [set: [recipient: recipient]],
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returning: true,
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conflict_target: [:user_id, :recipient]
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)
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end
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def bump_or_create(user_id, recipient) do
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%__MODULE__{}
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|> changeset(%{user_id: user_id, recipient: recipient})
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|> Repo.insert(
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on_conflict: [set: [updated_at: NaiveDateTime.utc_now()]],
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returning: true,
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conflict_target: [:user_id, :recipient]
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)
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end
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end
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