X-Git-Url: https://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fpagination.ex;h=33e45a0eb45b8b83a3a00fae90f22dd562c94ed1;hb=762be6ce10d2145e8e31d42c5d1a0bab93dbe7b0;hp=1cd8c4462fa3c411eb535876949eb975ce62c210;hpb=6ceef768cba23ab79a5545330746c7d8ce97ed64;p=akkoma diff --git a/lib/pleroma/pagination.ex b/lib/pleroma/pagination.ex index 1cd8c4462..33e45a0eb 100644 --- a/lib/pleroma/pagination.ex +++ b/lib/pleroma/pagination.ex @@ -1,5 +1,5 @@ # Pleroma: A lightweight social networking server -# Copyright © 2017-2020 Pleroma Authors +# Copyright © 2017-2021 Pleroma Authors # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Pagination do @@ -12,20 +12,23 @@ defmodule Pleroma.Pagination do alias Pleroma.Repo + @type type :: :keyset | :offset + @default_limit 20 @max_limit 40 @page_keys ["max_id", "min_id", "limit", "since_id", "order"] def page_keys, do: @page_keys + @spec fetch_paginated(Ecto.Query.t(), map(), type(), atom() | nil) :: [Ecto.Schema.t()] def fetch_paginated(query, params, type \\ :keyset, table_binding \\ nil) - def fetch_paginated(query, %{"total" => true} = params, :keyset, table_binding) do + def fetch_paginated(query, %{total: true} = params, :keyset, table_binding) do total = Repo.aggregate(query, :count, :id) %{ total: total, - items: fetch_paginated(query, Map.drop(params, ["total"]), :keyset, table_binding) + items: fetch_paginated(query, Map.drop(params, [:total]), :keyset, table_binding) } end @@ -38,7 +41,7 @@ defmodule Pleroma.Pagination do |> enforce_order(options) end - def fetch_paginated(query, %{"total" => true} = params, :offset, table_binding) do + def fetch_paginated(query, %{total: true} = params, :offset, table_binding) do total = query |> Ecto.Query.exclude(:left_join) @@ -46,7 +49,7 @@ defmodule Pleroma.Pagination do %{ total: total, - items: fetch_paginated(query, Map.drop(params, ["total"]), :offset, table_binding) + items: fetch_paginated(query, Map.drop(params, [:total]), :offset, table_binding) } end @@ -58,8 +61,15 @@ defmodule Pleroma.Pagination do |> Repo.all() end + @spec paginate(Ecto.Query.t(), map(), type(), atom() | nil) :: [Ecto.Schema.t()] def paginate(query, options, method \\ :keyset, table_binding \\ nil) + def paginate(list, options, _method, _table_binding) when is_list(list) do + offset = options[:offset] || 0 + limit = options[:limit] || 0 + Enum.slice(list, offset, limit) + end + def paginate(query, options, :keyset, table_binding) do query |> restrict(:min_id, options, table_binding) @@ -83,15 +93,10 @@ defmodule Pleroma.Pagination do max_id: :string, offset: :integer, limit: :integer, + skip_extra_order: :boolean, skip_order: :boolean } - params = - Enum.reduce(params, %{}, fn - {key, _value}, acc when is_atom(key) -> Map.drop(acc, [key]) - {key, value}, acc -> Map.put(acc, key, value) - end) - changeset = cast({%{}, param_types}, params, Map.keys(param_types)) changeset.changes end @@ -110,6 +115,8 @@ defmodule Pleroma.Pagination do defp restrict(query, :order, %{skip_order: true}, _), do: query + defp restrict(%{order_bys: [_ | _]} = query, :order, %{skip_extra_order: true}, _), do: query + defp restrict(query, :order, %{min_id: _}, table_binding) do order_by( query,