defmodule Ejabberd.Config.ValidatorUtility do @moduledoc """ Module used as a base validator for validation modules. Imports utility functions for working with validation structures. """ @doc """ Inserts an error inside the errors collection, for the given key. If the key doesn't exists then it creates an empty collection and inserts the value passed. """ @spec put_error(map, atom, any) :: map def put_error(errors, key, val) do Map.update errors, key, [val], fn coll -> [val | coll] end end @doc """ Given a list of modules it extracts and returns a list of the module names (which are Elixir.Module). """ def extract_module_names(modules) when is_list(modules) do modules |> Enum.map(&Map.get(&1, :module)) end end