Hi folks !

I’ve published v0.2.0 with your feedbacks.

• I’ve improved the URLValidator by better documenting what is and what isn’t supported.
• I’ve added all countries for the PostalCodeValidator (still no full database but a first sanity check of the format). The formats come from http://i18napis.appspot.com/, recommended by the (now deprecated) unicode postal code database.
• I’ve added better documentation to EmailValidator and an opt-in approach to which checks you want to apply. I also added pow’s package email validator and fixed some of the shortcomings found by @hauleth.
• I’ve added the validate_many helper as it’s indeed common to validate multiple fields with the same options.

As usual, happy to have your feedbacks, issues and pull requests

Cheers

Another helper I used not exactly for changeset but when using Ecto.Multi:

  @doc """
  Normalize Ecto.Multi transaction result so it returns
  {:ok, value} or {:error, failed_value}
  """
  def normalize(result, key \\ nil)
  def normalize({:error, _, failed_value, _}, _key), do: {:error, failed_value}
  def normalize({:ok, result}, key), do: {:ok, Map.get(result, key, result)}
  def normalize(result, _key), do: result

Example of usage:

  def create_slider(attrs \\ %{}) do
    changeset = Slider.changeset(%Slider{}, attrs)

    Multi.new()
    |> Multi.insert(:slider, changeset)
    |> Multi.update(:slider_with_image, &Slider.image_changeset(&1.slider, attrs))
    |> Repo.transaction()
    |> MyLib.Multi.normalize(:slider_with_image)
  end

This way in the Phoenix controller we don’t have to change the classic way to handle CRUD actions.

Seems that this is still not fully valid, as this do not allow [::1] as a domain part. Additionally it will allow .foo. as a domain, which is incorrect.