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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2019 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.FlakeId
  10   alias Pleroma.Object
  11   alias Pleroma.Repo
  12   alias Pleroma.User
  13   alias Pleroma.User
  14
  15   import Ecto.Changeset
  16   import Ecto.Query
  17
  18   schema "deliveries" do
  19     belongs_to(:user, User, type: FlakeId)
  20     belongs_to(:object, Object)
  21   end
  22
  23   def changeset(delivery, params \\ %{}) do
  24     delivery
  25     |> cast(params, [:user_id, :object_id])
  26     |> validate_required([:user_id, :object_id])
  27     |> foreign_key_constraint(:object_id)
  28     |> foreign_key_constraint(:user_id)
  29     |> unique_constraint(:user_id, name: :deliveries_user_id_object_id_index)
  30   end
  31
  32   def create(object_id, user_id) do
  33     %Delivery{}
  34     |> changeset(%{user_id: user_id, object_id: object_id})
  35     |> Repo.insert(on_conflict: :nothing)
  36   end
  37
  38   def get(object_id, user_id) do
  39     from(d in Delivery, where: d.user_id == ^user_id and d.object_id == ^object_id)
  40     |> Repo.one()
  41   end
  42
  43   # A hack because user delete activities have a fake id for whatever reason
  44   # TODO: Get rid of this
  45   def delete_all_by_object_id("pleroma:fake_object_id"), do: {0, []}
  46
  47   def delete_all_by_object_id(object_id) do
  48     from(d in Delivery, where: d.object_id == ^object_id)
  49     |> Repo.delete_all()
  50   end
  51 end