# Pleroma: A lightweight social networking server # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/> # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Repo do use Ecto.Repo, otp_app: :pleroma, adapter: Ecto.Adapters.Postgres, migration_timestamps: [type: :naive_datetime_usec] defmodule Instrumenter do use Prometheus.EctoInstrumenter end @doc """ Dynamically loads the repository url from the DATABASE_URL environment variable. """ def init(_, opts) do {:ok, Keyword.put(opts, :url, System.get_env("DATABASE_URL"))} end @doc "find resource based on prepared query" @spec find_resource(Ecto.Query.t()) :: {:ok, struct()} | {:error, :not_found} def find_resource(%Ecto.Query{} = query) do case __MODULE__.one(query) do nil -> {:error, :not_found} resource -> {:ok, resource} end end def find_resource(_query), do: {:error, :not_found} @doc """ Gets association from cache or loads if need ## Examples iex> Repo.get_assoc(token, :user) %User{} """ @spec get_assoc(struct(), atom()) :: {:ok, struct()} | {:error, :not_found} def get_assoc(resource, association) do case __MODULE__.preload(resource, association) do %{^association => assoc} when not is_nil(assoc) -> {:ok, assoc} _ -> {:error, :not_found} end end end