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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Delivery do
   6   use Ecto.Schema
   7
   8   alias Pleroma.Delivery
   9   alias Pleroma.Object
  10   alias Pleroma.Repo
  11   alias Pleroma.User
  12
  13   import Ecto.Changeset
  14   import Ecto.Query
  15
  16   schema "deliveries" do
  17     belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
  18     belongs_to(:object, Object)
  19   end
  20
  21   def changeset(delivery, params \\ %{}) do
  22     delivery
  23     |> cast(params, [:user_id, :object_id])
  24     |> validate_required([:user_id, :object_id])
  25     |> foreign_key_constraint(:object_id)
  26     |> foreign_key_constraint(:user_id)
  27     |> unique_constraint(:user_id, name: :deliveries_user_id_object_id_index)
  28   end
  29
  30   def create(object_id, user_id) do
  31     %Delivery{}
  32     |> changeset(%{user_id: user_id, object_id: object_id})
  33     |> Repo.insert(on_conflict: :nothing)
  34   end
  35
  36   def get(object_id, user_id) do
  37     from(d in Delivery, where: d.user_id == ^user_id and d.object_id == ^object_id)
  38     |> Repo.one()
  39   end
  40
  41   # A hack because user delete activities have a fake id for whatever reason
  42   # TODO: Get rid of this
  43   def delete_all_by_object_id("pleroma:fake_object_id"), do: {0, []}
  44
  45   def delete_all_by_object_id(object_id) do
  46     from(d in Delivery, where: d.object_id == ^object_id)
  47     |> Repo.delete_all()
  48   end
  49 end