akkoma-cachapa/lib/pleroma/activity.ex

defmodule Pleroma.Activity do
  use Ecto.Schema
  alias Pleroma.{Repo, Activity}
  import Ecto.Query

  schema "activities" do
    field :data, :map
    field :local, :boolean, default: true

    timestamps()
  end

  def get_by_ap_id(ap_id) do
    Repo.one(from activity in Activity,
      where: fragment("(?)->>'id' = ?", activity.data, ^to_string(ap_id)))
  end

  def all_by_object_ap_id(ap_id) do
    Repo.all(from activity in Activity,
      where: fragment("? @> ?", activity.data, ^%{object: %{id: ap_id}}))
  end

  def get_create_activity_by_object_ap_id(ap_id) do
    Repo.one(from activity in Activity,
      where: fragment("? @> ?", activity.data, ^%{type: "Create", object: %{id: ap_id}}))
  end
end