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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.Utils.Params do
   6   # As in Mastodon API, per https://api.rubyonrails.org/classes/ActiveModel/Type/Boolean.html
   7   @falsy_param_values [false, 0, "0", "f", "F", "false", "False", "FALSE", "off", "OFF"]
   8
   9   defp explicitly_falsy_param?(value), do: value in @falsy_param_values
  10
  11   # Note: `nil` and `""` are considered falsy values in Pleroma
  12   defp falsy_param?(value),
  13     do: explicitly_falsy_param?(value) or value in [nil, ""]
  14
  15   def truthy_param?(value), do: not falsy_param?(value)
  16 end