Amnesia transactions not running

database.ex

use Amnesia

defdatabase XikBot.Database do
  deftable Timer, [{ :id, autoincrement }, :cmd, :interval, :last_run], type: :bag do
    @type t :: %Timer{id: non_neg_integer, cmd: String.t, interval: integer, last_run: integer}
  end
end

plugin.ex

defmodule Plugin do
  alias Plugin
  use XikBot.Database

  def everyX(name, ms, cb) do
    IO.puts "--- everyX ---"

    Amnesia.transaction do
      IO.puts "try to get data"
      selection = Timer.where cmd == name

      IO.puts "Got timer data:"
      IO.puts IO.inspect selection

      if !selection do
        t = %Timer{cmd: name, interval: 0, last_run: 0}
          |> Timer.write

        cb.()

        Stream.interval(ms) |> t.delete
      end
    end
  end
end