Hi all

I am trying to pass a list of values to a changeset and have following methods:

def changeset_all(model, list) when is_list(list) do

		list
		|> Enum.map(fn param -> changeset(model, param) end)

  end


  def changeset(model, params \\ %{}) do

		model
    |> cast(params, [:code, :en, :de, :it, :fr])
    |> validate_required([:code, :en])
    |> validate_length(:code, max: 2)
    |> unique_constraint(:code)

  end

I wrote a test

@valid_attrs_list [ %{code: "CH", en: "Switzerland", de: "Schweiz", it: "Svizzera", fr: "Suisse"},
										  %{code: "IT", en: "Italy", de: "Italien"},
										  %{code: "FR", en: "Franche", de: "Frankreich"} ]

test "a valid list of countries" do
  changeset = Country.changeset_all(%Country{}, @valid_attrs_list)
  assert changeset.valid?
end

The compiler complains:

 1) test a valid list of countries (Pubcus.CountryModelTest)
     test/models/country_model_test.exs:27
     ** (ArgumentError) argument error
     stacktrace:
       :erlang.apply([#Ecto.Changeset<action: nil, changes: %{code: "CH", de: "Schweiz", en: "Switzerland", fr: "Suisse", it: "Svizzera"}, errors: [], data: #Pubcus.Country<>, valid?: true>], :valid?, [])

What am I doing wrong?

The schema definition:

schema "countries" do

    field :code, :string
    field :en, :string
    field :de, :string
    field :it, :string
    field :fr, :string

    timestamps

  end

Thanks