20190414125034_migrate_old_bookmarks.exs 759 Bytes
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defmodule Pleroma.Repo.Migrations.MigrateOldBookmarks do
  use Ecto.Migration
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  import Ecto.Query
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  alias Pleroma.Activity
  alias Pleroma.Bookmark
  alias Pleroma.User
  alias Pleroma.Repo

  def up do
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    query =
      from(u in User,
        where: u.local == true,
        where: fragment("array_length(?, 1)", u.old_bookmarks) > 0,
        select: %{id: u.id, old_bookmarks: u.old_bookmarks}
      )

    Repo.transaction(fn ->
      Repo.stream(query)
      |> Enum.each(fn user ->
        Enum.each(user.old_bookmarks, fn id ->
          activity = Activity.get_create_by_object_ap_id(id)
          {:ok, _} = Bookmark.create(user.id, activity.id)
        end)
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      end)
    end)
  end

  def down do
    execute("TRUNCATE TABLE bookmarks")
  end
end