defmodule Sukaato.CustomValidators do import Ecto.Changeset import Validate, only: [validate: 2] def validate_map_format(changeset, field, conventional_mapping) when is_atom(field) do field_value = get_field(changeset, field) validation_result = validate(field_value, conventional_mapping) if elem(validation_result, 0) == :ok do changeset else add_error(changeset, field, "is not a valid map") end end end